You're using an outdated browser. Please upgrade to a modern browser for the best experience.
Abiotic Stress in Plants
Edit
This entry is adapted from the peer-reviewed paper 10.3390/plants10061221

Abiotic stress in plants is a crucial issue worldwide, especially heavy-metal contaminants, salinity, and drought. These stresses may raise a lot of issues such as the generation of reactive oxygen species, membrane damage, loss of photosynthetic efficiency, etc. that could alter crop growth and developments by affecting biochemical, physiological, and molecular processes, causing a significant loss in productivity. To overcome the impact of these abiotic stressors, many strategies could be considered to support plant growth including the use of nanoparticles (NPs). However, the majority of studies have focused on understanding the toxicity of NPs on aquatic flora and fauna, and relatively less attention has been paid to the topic of the beneficial role of NPs in plants stress response, growth, and development. More scientific attention is required to understand the behavior of NPs on crops under these stress conditions. 

abiotic stresses environmental contaminants heavy metals nanoparticles soil

1. Introduction

In the current scenario, population explosion has emerged as one of the major challenges, especially for sustainable food production, in feeding the growing population [1]. The world population may reach up to 10.9 billion by 2100 and will lead to an increase in demand for food by nearly 50%. To achieve the “Zero Hunger” goal, which is one of the goals of sustainable development of the UN to be achieved by 2030, there is an urgent need for revolutionizing conventional agricultural practices. Such changes can be achieved by employing eco-friendly and sustainable innovations [1][2][3][4].
Plants are unable to move physically from their location to prevent the consequences of environmental stress such as abiotic stresses. Among different abiotic stresses, heavy metal (HM) contamination, soil salinity, and drought stress are described to limit the crop productivity by multiple orders of magnitude [5][6][7]. These changes under abiotic stress trigger perturbations in the metabolism of plants, thereby facilitating reorganization of the metabolic network in order to keep the vital metabolic processes active [8][9][10][11][12].
Soil pollutants, especially HMs and metalloids such as Cr, Cd, Ni, Zn, As, and Hg, are identified as the most commonly detected contaminants [13][14]. The increased release of HMs in the terrestrial environment has been documented to severely affect the productivity of cultivated areas [15][16]. Furthermore, most of the metal contaminants eventually find their way into the terrestrial and aquatic environment, thereby directly or indirectly affecting human health and the associated ecosystems [17][18]. Additionally, there are ample chances of accumulation of HMs in plants exposed to contaminated areas [19].
Salinity and drought stresses are devastating stresses that are reported to limit the economic yield of several crops via inducing biochemical and physiological perturbations [20][21][22]. These stresses confine the plant productivity and growth due to osmotic stress, nutritional imbalance, and oxidative stress [23]. The salt stress results in the accumulation of sodium (Na⁺) and chloride (Cl−) ions in the cytosol, eventually causing considerable damage to the cell [24]. Drought stress is known to induce stomatal closure, to inhibit photosynthesis, to reduce the leaf area, to reduce the biomass and growth, to decrease the water potential, to increase the amount of osmolytes, and to induce the generation of reactive oxygen species (ROS) [25]. Abiotic stress triggers perturbation in the metabolism of plants, thereby facilitating reorganization of the metabolic networks in order to keep the vital processes active [8][9][10][11][12]. Thus, the onset of abiotic environmental stressors because of immobile nature of plants eventually leads to reduced crop productivity.
Numerous stress management strategies have been developed by researchers in recent decades. Among them, nanotechnology is one of the emerging strategies that has been anticipated to improve crop productivity [2][3]. Nevertheless, most of the research focusing on nanoparticles (NPs) currently is concentrated on their toxicity [4][26][27][28][29]. Relatively fewer publications are available regarding the role of NPs in crop protection, especially under various abiotic stress conditions [8][30][31].
Nanoparticles may be described as materials with diameters between 1 to 100 nm in at least one dimension [32]. Metal and metal-based NPs show various physiochemical features that are different from their native bulk compounds. The application of NPs has gained widespread popularity in agriculture and allied sectors including various other fields, i.e., the chemical, optical, biomedical, pharmaceutical, food, and textile industries [33][34]. Different NPs for field applications such as nano-agrochemicals have been used to increase agricultural productivity. Some of them include phosphorous NPs (Ca5(PO4)3OH), calcium NPs (CaCO3), Mg NPs, ZnO NPs, Fe2O3 NPs, TiO2 NPs, Ag NPs (AgNO3), Mn NPs (MnSO4), Cu NPs (CuO), Mo NPs, SiO4 and AlO4 CNTs (carbon nanotubes), and a complex of Chitosan with Zn or Cu [4][35].
Nanoparticles as soil-improving agents, nano-fertilizers, nano-pesticides, growth stimulators, and nano-sensors for controlling various agricultural factors in the farm [36] have been utilized for improving crop yield. It has gained popular acceptance for its potential application in the smart and controlled delivery of pesticides and herbicides and in the sustained-release of fertilizer formulations. Additionally, the contribution of NPs in the alleviation of abiotic stress-induced toxicity in plants is of immense agricultural importance. The intervention of nanotechnology has demonstrated effectiveness not only in the removal of non-degradable metals, but also in the detoxification of slowly degrading contaminants [37]. The past decades have substantially received tremendous contribution about NPs improving plant growth and soil characteristics, particularly in the management of marginal soils affected by HM contamination [38][39]. In a recent study, the contents of chlorophyll (a and b) and carotenoids were noticeably enhanced by magnetic NP treatment to Hordeum vulgare, apart from the positive impacts on the genes of photosystems [40]. Likewise, the negative impacts of drought and salinity stress have also been mitigated by the use of NPs [41][42].
In order to obtain in-depth knowledge on field applications of NPs, the present review aimed to discuss the challenges of different abiotic stresses causing substantial changes in crops at the morphological, anatomical, biochemical, and physiological levels and the possible roles and mechanisms of NPs for mitigating the negative consequences of abiotic stresses to improve the agricultural productivity.

2. Alleviation of Heavy Metal Toxicity in Plants Using Nanoparticles

Excessive release of HMs in the environment by an exponential rise in anthropogenic activities and industrial processing is of great concern [43][44]. The risks of HM contamination in cultivated fields and aquatic environments due to the indiscriminate addition of various agro-fertilizers are of considerable concern [45][46]. The abundance of HMs in a given environmental matrix beyond certain limits exerts toxicity because of accumulation and genotoxic, carcinogenic, and mutagenic behaviors [46][47][48][49].
The HMs and metalloids associated with the environmental and human health concerns include Cu, Zn, Cd, Cr, Pb, As, and Hg [50][51]. Therefore, it is imperative to develop innovative and economical technologies for the successful elimination of HMs from contaminated sites. However, the characteristic toxicity at low concentrations, slow removal using conventional approaches, and non-biodegradable attributes of HMs [49][52][53][54] are the important factors imposing restrictions in successful detoxification from contaminated sites. The fabrication of effective and eco-friendly NPs for successful employment in managing widespread contamination of hazardous HMs has received much popularity [55]. Among the different metal and non-metal-based NPs, generally, those with an environmentally friendly nature, cost-effectiveness, and ease of availability are preferred for application in environmental clean-up programs as well as in the alleviation of toxicity [56].
The contribution of myriads of NPs in overcoming the challenges of HM-induced toxicity has been presented by various researchers worldwide (Table 1). In general, it has been observed that NPs minimize the uptake of HMs by modifying the expression of genes responsible for metal uptake and by reducing HM bioaccumulation. Furthermore, NP treatment improves the physiological and biochemical parameters of the plants such as enhancing the synthesis of defense enzymes (SOD, POX, CAT, APX, etc.); augmenting nutrient uptake; decreasing the loss of electrolytes; improving pigments and soluble proteins; reducing peroxidation; and causing rise in the levels of proline, glutathione, and phyto-chelatins. These attributes are primarily responsible for the overall increase in the tolerance of the crops and may vary slightly according to different plant species.
Table 1. Applications of NPs in the mitigation of HMs stress by altering the morphophysiological responses of plants.
Table
Nanoparticles Plants Germination and Morphological Responses Physiological Responses References
Si (10 μM) Pisum sativum L. Presence of Si NPs improved the growth in presence of Cr Si NPs minimized the Cr storage, enhanced the synthesis of defense enzymes and augmented nutrient uptake [57]
ZnO (25 mg/L) Leucaena leucocephala Application of NPs induced seedling growth ZnO NPs amendment improved pigments and soluble proteins, reduced peroxidation; there was rise in the antioxidant defense enzymes [58]
Fe3O4 Triticum aestivum L. Fe3O4 NP treatment minimized the inhibitory action of HMs Fe3O4 NPs supplementation improved the level of superoxide dismutase and peroxidase [59]
Si (19, 48, and 202 nm) Oryza sativa L. Si NPs enhanced the number of cultured cells and decreased proportionally with the rise in NP size; the treatment maintained the cellular integrity in the presence of metals Si NPs amendment caused altered expression of genes responsible for reduced metal uptake [60]
ZnO (0, 50, 75, and 100 mg/L) Zea mays L. Treatment caused rise in plant length, leaf number, and biomass ZnO NPs application enhanced chlorophyll content, gas exchange characteristics, and antioxidant enzymes; addition led to reduced content of Cd in root and shoot [61]
ZnO (0, 25, 50, 75, and 100 mg/L) and Fe NPs (0, 5, 10, 15, and 20 mg/L) T. aestivum L. Treatment induced plant growth, dry weight, and grains under Cd stress Addition of NPs decreased the loss of electrolyte and activity of superoxide dismutase and peroxidase along with diminished Cd accumulation [62]
Si Glycine max L. Si NPs minimized the growth inhibitory action of Hg Incorporation of Si NPs improved the chlorophyll content and reduced the Hg content in root and shoot [63]
Mel-Au (200 μM) O. sativa L. — Application of Mel-Au NPs caused reduction of Cd level in root and shoot, improved chlorophyll content and raised the activity of antioxidant enzymes [64]
Fe (25 and 50 mg/L) O. sativa L. Treatment of Fe NPs improved plant length and dry weight Fe NPs application caused rise in the level of proline, glutathione and phyto-chelatins; Fe NPs addition led to improved defense enzymes and glyoxalase machinery [19]
ZnO (10–100 mg/L) O. sativa L. Amendment of ZnO increased the growth of seedlings Treatment facilitated reduced accumulation of arsenic in root and shoot together with rise in phytochelatin level [65]
Cu (25, 50, and 100 mg kg−1 of soil) T. aestivum L. Rise in plant height and shoot dry weight Increase in N and P content; reduced Cd transport, rise in the level of vital ions and antioxidant pool [66]
Cu (0, 25, 50, and 100 mg kg−1 of soil) T. aestivum L. Improved biomass and growth Reduced Cr availability; increase in nutrient uptake; rise in antioxidant content [67]
Fe2O3 (0, 25, 50, and 100 mg kg−1 soil) O. sativa L. Improved fresh and dry biomass; increased height Augmented detoxifying enzymes, photosynthetic potential, and nutrient uptake attributes; reduced formation of ROS, lowered expression of genes supporting the transport of Cd; restricted Cd mobilization in upper plant parts [68]
Fe2O3 (25, 50, and 100 mg kg−1 soil) T. aestivum L. Rise in plant fresh and dry biomass; increase in plant length Reduced Cd transport; enhanced N, P, and K content; increased antioxidants and pigment content [69]
TiO2 (0, 100, and 250 mg/L soil) Z. mays Foliar application improved shoot and root dry weight Reduced accumulation of Cd; increased activities of antioxidant enzymes [70]
SiO2 (30 and 50 nm) G. max Improved seedling fresh weight Improved chlorophyll content; lowered accumulation of Hg in root [63]
Au (200 μM) O. sativa L. — Reduced level of Cd in root and leaves by 33 and 46.2%, respectively; improvement in antioxidant defense enzyme; restricted expression of genes associated with metal transport [64]
Si (0, 25, 50, and 100 mg/kg soil) T. aestivum L. Improved plant height Improved chlorophyll; photosynthesis; diminished Cd content in tissues; [64]
ZnO (0, 50, and 100 mg L−1) G. max Improved root and shoot growth Reduced arsenic concentration in root and shoot; improved photosynthesis, water loss, photochemical yield; raised antioxidative defense enzymes [71]
Ti (0.1 to 0.25%) Vigna radiata L. Augmented radicle length and biomass Decline in the level of ROS and lipid peroxidation; upregulation of genes related with antioxidative enzymes [72]
Se and Si (5, 10, and 20 mg L−1) O. sativa L. — Lowered accrual of Cd and Pb; improved yield [73]

3. Alleviation of Salinity Stress in Plant Using Nanoparticles

Salinity has emerged as a global concern due to steady increases in salt-affected land throughout the world [74]. For example, it is straddling from the Indo-Gangetic plain to the Great Hungarian Plain, Russia, Israel, China, and the United States of America [75][76]. The extent of salinity-affected areas is expected to cover about 50% of total agricultural land by 2050. Salinity stress causes various detrimental effects to plants’ physiological, biochemical, and molecular features and reduces productivity [77]. These impacts and their consequences induced by salinity stress in plants are shown in Figure 1.
Plants 10 01221 g001 550
Figure 1. Salinity and drought stress-mediated responses in the plants; ETS: electron transport system.
Nanoparticles can help the plant under salt stress by regulating ion balance; reducing the Na+ ion toxicity; increasing the uptake of K+; activating the antioxidative defense system; increasing the contents of the pigment, compatible solutes; and increasing stomatal conductance. In salinity-stressed T. aestivum L., the application of magnetite NPs improved chlorophyll contents and antioxidative enzymes along with the amelioration of various polypeptide chains, which are reported to be linked with salinity stress tolerance [78]. Nano-SiO2 improved the growth of G. max under salt stress by raising the level of leaf K+ and biological antioxidant activities [79]. Similarly, in salt-stressed T. aestivum L. cultivars, nano-SiO2 was found to improve seed germination and growth [80].
The application of Zn NPs to salt-stressed Brassica napus plants alleviated the salinity-induced detrimental impacts by upregulating the antioxidative mechanism, osmolyte biosynthesis, and ionic control [81]. In Solanum lycopersicum, Cu NPs applied to the leaves mitigated salinity stress by improving growth and the Na+/K+ ratio. Moreover, Cu NPs improved the level of glutathione, polyphenols, and vitamin C content as compared to the control. Additionally, the activities of APX, GPX, and SOD were also modulated, thereby improving the overall plant’s normal growth and development [82]. In addition, seed priming with ZnO NPs (60 mg/L) ameliorated the detrimental consequence induced by the NaCl treatment in Lupinus termis via increasing the pigments, osmoregulation, and regulation of the contents of stress-associated metabolites. In another study, the seed priming of T. aestivum L. with Ag NPs was also proven to be an adequate salinity stress management strategy [83].
Recently, a study depicted that the exogenous application of salicylic acid+nano-Fe2O3 to Trachyspermum ammi L. alleviated salinity stress to a considerable extent via increasing K+ uptake, K+/Na+ ratio; iron content; activities of various antioxidative enzymes viz. SOD, catalase (CAT), peroxidase (POD), and phenol peroxidase (PPO); and the contents of the compatible solutes. These modifications collectively led to the improvement in membrane stability index, leaf water content, pigments, and growth of the plants (Table 2) [84].
Table 2. Applications of NPs in salinity stress mitigation by altering the morphophysiological responses of plants.
Table
Nanoparticles Plants Germination and Morphological Responses Physiological Responses References
Ag (0, 2, 5, and 10 mM) Triticum aestivum L. Seed priming with Ag NPs significantly augmented the fresh and dry biomass of salinity stressed wheat plants at all doses compared to the control. Ag NPs increased the activities of vital antioxidative enzymes whilst declined the contents of stress indicators, i.e., MDA and H2O2 in wheat leaves as compared to salt stressed plants. [83]
Zn-, B-, Si-, and Zeolite NPs Solanum tuberosum L., Diamont cultivar Application of individual and binary treatment of NPs improved plant height, shoot dry weight, number of stems per plant, and tuber yield as compared to the control. NP treatment increased leaf relative water content, leaf photosynthetic rate, leaf stomatal conductance, and chlorophyll content in comparison to the control; improved nutrients contents, leaf proline content, and leaf gibberellic acid level; and enhanced the contents of protein adn carbohydrates, and antioxidative enzymes’ activities. [85]
Fe (0, 0.08, and
0.8 ppm), and potassium silicate (0, 1, and 2 mM)		 Vitis vinifera — Application of NPs significantly increased the total protein content, activities of antioxidative enzymes (POD, CAT, and SOD), and hydrogen peroxide, while reduced proline content. [86]
Fe (0.0, 0.08, and 0.8 ppm) Fragaria ananassa Application of Fe NPs (at higher concentrations) increased root dry weight and dry weight of the explants. Fe NPs improved the contents of photosynthetic pigments and total soluble carbohydrate, membrane stability index, and relative water content of salinity-stressed plants. [87]
N–Na2SiO3 (400 ppm) S. tuberosum L. Foliar spraying of N–Na2SiO3 restored the tuber number per plant and tuber yield along with improved water use efficiency and tuber dry matter percentage under salinity stress. Application of N–Na2SiO3 exerted positive impacts on the quantum yield of PS II, carotenoids content, and DPPH radical scavenging activity in salinity stressed plants. [88]
SiO2 (0, 50, 100, and 150 mg/L) Musa acuminata All doses of SiO2 NPs improved the number of shoots and shoot length of banana. Application of SiO2 NPs increased chlorophyll content, lowered electrolyte leakage, reduced MDA content, and altered the content of phenolic compounds [89]
CNPs (0.3% and 90–110 nm) Lactuca sativa The salinity-induced deleterious effects on germination and associated parameters were alleviated by the exposure of C NPs, e.g., treatment of C NPs for 2 h significantly improved the germination rate in some varieties. — [90]
ZnO (0, 1000, and 3000 ppm) Trigonella
foenum-graecum		 — Interaction of NaCl and ZnO was recorded to reverse the salinity induced consequences (L-proline, protein, MDA, aldehydes, sugars, H2O2, and antioxidative enzymes) in both cultivars, but the results were more apparent in case cv. Ardestanian than cv. Mashhadian. [91]
ZnO (10, 50, and 100 mg/L) Lycopersicon esculentum Foliar spraying of ZnO NPs increased shoot length and root length, biomass, and leaf area. Increased chlorophyll content and photosynthetic attributes, protein content, and activities of antioxidative enzymes (POX, SOD, and CAT) in salinity-stressed tomato plants. [92]
TiO2, (40, 60, and 80 ppm) Zea mays L. Seed priming with TiO2 positively impacted the germination (germination percentage, germination energy, and seedling vigor index) and seedling growth (lengths of root and shoot, fresh, and dry weight) and reduced the mean emergence time. Results showed the enhancement in potassium ion concentration, relative water content, contents of total phenolic and proline contents; increased SOD, CAT, and PAL activities; and decreased sodium ion concentration, membrane electrolyte leakage, and MDA content. [53]

4. Alleviation of Drought Stress in Plants Using Nanoparticles

Drought stress is reported to have severe consequences for crops, including reduced leaf area, reduced growth, limited carboxylation, decreased water potential, hormonal imbalance, and oxidative stress [93][94]. It is frequently associated with high temperature due to increased water loss through evapotranspiration. Owing to this reason, plants reduce the leaf water and turgor pressure. These consequences are also associated with the stomatal closure, which in turn decelerates the plant’s metabolism and ceases vital enzymatic reactions. In addition, the severe water shortages eventually contribute to stunted crop growth and finally death [95][96].
An insight into the morphophysiological responses and consequences of plants against drought stress is presented in Figure 1. The key factors under drought stress are the severity and duration of the stress, which could be directly correlated with drought stress-induced loss in crop productivity and economic yield [97]. Furthermore, salinity combined with drought stress led to a decrease in water potential, but the osmotic potential decreased more significantly [98].
Applications of NPs to drought stress plants have been observed to improve photosynthetic rate, stomatal conductance, relative water content, and ameliorated cell membrane damage by lowering the contents of stress metabolites and electrolyte leakage. Furthermore, increases in osmolyte contents, carotenoid content, chlorophyll content, protein content, and phenolic substances (i.e., rosmarinic acid and chlorogenic acid) and improved activities of antioxidant enzymes such as CAT, SOD, and POX have also been found as a general mechanism in overcoming and mitigating drought stress.
 

References

  1. Calicioglu, O.; Flammini, A.; Bracco, S.; Bellù, L.; Sims, R. The Future Challenges of Food and Agriculture: An Integrated Analysis of Trends and Solutions. Sustainability 2019, 11, 222.
  2. Ashraf, S.A.; Siddiqui, A.J.; Elkhalifa, A.E.O.; Khan, M.I.; Patel, M.; Alreshidi, M.; Moin, A.; Singh, R.; Snoussi, M.; Adnan, M. Innovations in Nanoscience dor the Sustainable Development of Food and Agriculture with Implications on Health and Environment. Sci. Total Environ. 2021, 768, 144990.
  3. Seleiman, M.F.; Almutairi, K.F.; Alotaibi, M.; Shami, A.; Alhammad, B.A.; Battaglia, M.L. Nano-Fertilization as an Emerging Fertilization Technique: Why Can Modern Agriculture Benefit from Its Use? Plants 2020, 10, 2.
  4. Ranjan, A.; Rajput, V.D.; Minkina, T.; Bauer, T.; Chauhan, A.; Jindal, T. Nanoparticles Induced Stress and Toxicity in Plants. Environ. Nanotechnol. Monit. Manag. 2021, 15, 100457.
  5. Haider, F.U.; Liqun, C.; Coulter, J.A.; Alam Cheema, S.; Wu, J.; Zhang, R.; Wenjun, M.; Farooq, M. Cadmium Toxicity in Plants: Impacts and Remediation Strategies. Ecotoxicol. Environ. Saf. 2021, 211, 111887.
  6. Godoy, F.; Olivos-Hernández, K.; Stange, C.; Handford, M. Abiotic Stress in Crop Species: Improving Tolerance by Applying Plant Metabolites. Plants 2021, 10, 186.
  7. Yadav, B.; Jogawat, A.; Rahman, S.; Narayan, O.P. Secondary Metabolites in the Drought Stress Tolerance of Crop Plants: A Review. Gene Rep. 2021, 23, 101040.
  8. Rajput, V.; Harish; Singh, R.; Verma, K.; Sharma, L.; Quiroz-Figueroa, F.; Meena, M.; Gour, V.; Minkina, T.; Sushkova, S.; et al. Recent Developments in Enzymatic Antioxidant Defence Mechanism in Plants with Special Reference to Abiotic Stress. Biology 2021, 10, 267.
  9. Rajput, V.; Minkina, T.; Semenkov, I.; Klink, G.; Tarigholizadeh, S.; Sushkova, S. Phylogenetic Analysis of Hyperaccumulator Plant Species for Heavy Metals and Polycyclic Aromatic Hydrocarbons. Environ. Geochem. Health 2021, 43, 1629–1654.
  10. Minkina, T.; Rajput, V.; Fedorenko, G.; Fedorenko, A.; Mandzhieva, S.; Sushkova, S.; Morin, T.; Yao, J. Anatomical and Ultrastructural Responses of Hordeum Sativum to the Soil Spiked by Copper. Environ. Geochem. Health 2020, 42, 45–58.
  11. Verma, K.K.; Anas, M.; Chen, Z.; Rajput, V.D.; Malviya, M.K.; Verma, C.L.; Singh, R.K.; Singh, P.; Song, X.-P.; Li, Y.-R. Silicon Supply Improves Leaf Gas Exchange, Antioxidant Defense System and Growth in Saccharum officinarum Responsive to Water Limitation. Plants 2020, 9, 1032.
  12. Ayup, M.; Chen, Y.-N.; Nyongesah, M.J.; Zhang, Y.-M.; Rajput, V.D.; Zhu, C.-G. Xylem Anatomy and Hydraulic Traits of Two Co-Occurring Riparian Desert Plants. IAWA J. 2015, 36, 69–83.
  13. Zulkafflee, N.S.; Redzuan, N.A.M.; Selamat, J.; Ismail, M.R.; Praveena, S.M.; Razis, A.F.A. Evaluation of Heavy Metal Contamination in Paddy Plants at the Northern Region of Malaysia Using ICPMS and Its Risk Assessment. Plants 2020, 10, 3.
  14. Li, Q.; Li, C.; Wang, H.; Wei, X.; Liu, Y.; Yang, R.; Wen, X. Geochemical Characteristics of Heavy Metals in Soil and Blueberries of the Core Majiang Blueberry Production Area. Bull. Environ. Contam. Toxicol. 2021, 106, 57–64.
  15. Rajput, V.; Minkina, T.; Mazarji, M.; Shende, S.; Sushkova, S.; Mandzhieva, S.; Burachevskaya, M.; Chaplygin, V.; Singh, A.; Jatav, H. Accumulation of Nanoparticles in the Soil-plant Systems and Their Sffects on Human Health. Ann. Agric. Sci. 2020, 65, 137–143.
  16. Chaplygin, V.A.; Rajput, V.D.; Mandzhieva, S.S.; Minkina, T.M.; Nevidomskaya, D.G.; Nazarenko, O.G.; Kalinitchenko, V.P.; Singh, R.; Maksimov, A.Y.; Popova, V.A. Comparison of Heavy Metal Content in Artemisia austriaca in Various Impact Zones. ACS Omega 2020, 5, 23393–23400.
  17. Malar, S.; Manikandan, R.; Favas, P.J.; Sahi, S.V.; Venkatachalam, P. Effect of Lead on Phytotoxicity, Growth, Biochemical Alterations and Its Role on Genomic Template Stability in Sesbania grandiflora: A Potential Plant for Phytoremediation. Ecotoxicol. Environ. Saf. 2014, 108, 249–257.
  18. Fatemi, H.; Pour, B.E.; Rizwan, M. Foliar Application of Silicon Nanoparticles Affected the Growth, Vitamin C, Flavonoid, and Antioxidant Enzyme Activities of Coriander (Coriandrum sativum L.) Plants Grown in Lead (Pb)-Spiked Soil. Environ. Sci. Pollut. Res. 2021, 28, 1417–1425.
  19. Bidi, H.; Fallah, H.; Niknejad, Y.; Tari, D.B. Iron Oxide Nanoparticles Alleviate Arsenic Phytotoxicity In Rice by Improving Iron Uptake, Oxidative Stress Tolerance and Diminishing Arsenic Accumulation. Plant Physiol. Biochem. 2021, 163, 348–357.
  20. Kamran, M.; Parveen, A.; Ahmar, S.; Malik, Z.; Hussain, S.; Chattha, M.S.; Saleem, M.H.; Adil, M.; Heidari, P.; Chen, J.-T. An Overview of Hazardous Impacts of Soil Salinity in Crops, Tolerance Mechanisms, and Amelioration through Selenium Supplementation. Int. J. Mol. Sci. 2019, 21, 148.
  21. Zia, R.; Nawaz, M.S.; Siddique, M.J.; Hakim, S.; Imran, A. Plant Survival Under Drought Stress: Implications, Adaptive Responses, and Integrated Rhizosphere Management Strategy for Stress Mitigation. Microbiol. Res. 2021, 242, 126626.
  22. Rajput, V.D.; Yaning, C.; Ayup, M.; Minkina, T.; Sushkova, S.; Mandzhieva, S. Physiological and Hydrological Changes in Populus euphratica Seedlings Under Salinity Stress. Acta Ecol. Sin. 2017, 37, 229–235.
  23. Shahid, M.A.; Sarkhosh, A.; Khan, N.; Balal, R.M.; Ali, S.; Rossi, L.; Gómez, C.; Mattson, N.; Nasim, W.; Garcia-Sanchez, F. Insights into the Physiological and Biochemical Impacts of Salt Stress on Plant Growth and Development. Agronomy 2020, 10, 938.
  24. Rajput, V.D.; Minkina, T.; Yaning, C.; Sushkova, S.; Chapligin, V.A.; Mandzhieva, S. A Review on Salinity Adaptation Mechanism and Characteristics of Populus euphratica, A Boon for Arid Ecosystems. Acta Ecol. Sin. 2016, 36, 497–503.
  25. Ibrahim, W.; Zhu, Y.-M.; Chen, Y.; Qiu, C.-W.; Zhu, S.; Wu, F.; Shuijin, Z. Genotypic Differences in Leaf Secondary Metabolism, Plant Hormones and Yield Under Alone and Combined Stress of Drought and Salinity In Cotton Genotypes. Physiol. Plant 2018, 165, 343–355.
  26. Rajput, V.; Minkina, T.; Ahmed, B.; Sushkova, S.; Singh, R.; Soldatov, M.; Laratte, B.; Fedorenko, A.; Mandzhieva, S.; Blicharska, E.; et al. Interaction of Copper-Based Nanoparticles to Soil, Terrestrial, and Aquatic Systems: Critical Review of the State of the Science and Future Perspectives. In Reviews of Environmental Contamination and Toxicology; de Voogt, P., Ed.; Springer: Cham, Switzerland, 2019; Volume 250, pp. 51–96.
  27. Pelegrino, M.T.; Kohatsu, M.Y.; Seabra, A.B.; Monteiro, L.R.; Gomes, D.G.; Oliveira, H.C.; Rolim, W.R.; De Jesus, T.A.; Batista, B.L.; Lange, C.N. Effects of Copper Oxide Nanoparticles on Growth of Lettuce (Lactuca sativa L.) Seedlings and Possible Implications of Nitric Oxide in Their Antioxidative Defense. Environ. Monit. Assess. 2020, 192, 1–14.
  28. Rajput, V.; Chaplygin, V.; Gorovtsov, A.; Fedorenko, A.; Azarov, A.; Chernikova, N.; Barakhov, A.; Minkina, T.; Maksimov, A.; Mandzhieva, S.; et al. Assessing the Toxicity and Accumulation of Bulk- and Nano-Cuo in Hordeum sativum L. Environ. Geochem. Health 2020, 43, 2443–2454.
  29. Youssef, M.S.; Elamawi, R. Evaluation of Phytotoxicity, Cytotoxicity, and Genotoxicity of ZnO Nanoparticles in Vicia faba. Environ. Sci. Pollut. Res. 2018, 27, 18972–18984.
  30. Adrees, M.; Khan, Z.S.; Ali, S.; Hafeez, M.; Khalid, S.; Rehman, M.Z.U.; Hussain, A.; Hussain, K.; Chatha, S.A.S.; Rizwan, M. Simultaneous Mitigation of Cadmium and Drought Stress in Wheat by Soil Application of Iron Nanoparticles. Chemosphere 2020, 238, 124681.
  31. Kolesnikov, S.; Tsepina, N.; Minnikova, T.; Kazeev, K.; Mandzhieva, S.; Sushkova, S.; Minkina, T.; Mazarji, M.; Singh, R.; Rajput, V. Influence of Silver Nanoparticles on the Biological Indicators of Haplic Chernozem. Plants 2021, 10, 1022.
  32. Arya, A.; Mishra, V.; Chundawat, T.S. Green Synthesis of Silver Nanoparticles from Green Algae (Botryococcus braunii) and Its Catalytic Behavior for the Synthesis of Benzimidazoles. Chem. Data Collect. 2019, 20, 100190.
  33. Staroń, A.; Długosz, O.; Pulit-Prociak, J.; Banach, M. Analysis of the Exposure of Organisms to the Action of Nanomaterials. Materials 2020, 13, 349.
  34. Verma, S.K.; Das, A.K.; Gantait, S.; Kumar, V.; Gurel, E. Applications of Carbon Nanomaterials in the Plant System: A Perspective View on the Pros and Cons. Sci. Total Environ. 2019, 667, 485–499.
  35. Liu, R.; Lal, R. Potentials of Engineered Nanoparticles as Fertilizers for Increasing Agronomic Productions. Sci. Total Environ. 2015, 514, 131–139.
  36. Wang, P.; Lombi, E.; Zhao, F.-J.; Kopittke, P.M. Nanotechnology: A New Opportunity in Plant Sciences. Trends Plant Sci. 2016, 21, 699–712.
  37. Sebastian, A.; Nangia, A.; Prasad, M. A Green Synthetic Route to Phenolics Fabricated Magnetite Nanoparticles From Coconut Husk Extract: Implications to Treat Metal Contaminated Water and Heavy Metal Stress in Oryza sativa L. J. Clean. Prod. 2018, 174, 355–366.
  38. Ali, S.; Rizwan, M.; Hussain, A.; Rehman, M.Z.U.; Ali, B.; Yousaf, B.; Wijaya, L.; Alyemeni, M.N.; Ahmad, P. Silicon Nanoparticles Enhanced the Growth and Reduced the Cadmium Accumulation in Grains of Wheat (Triticum aestivum L.). Plant Physiol. Biochem. 2019, 140, 1–8.
  39. Singh, D.; Singh, S.K.; Singh, V.K.; Verma, H.; Mishra, M.; Rashmi, K.; Kumar, A. Plant Growth-promoting Bacteria: Application in Bioremediation of Salinity and Heavy Metal–Contaminated Soils. In Microbe Mediated Remediation of Environmental Contaminants; Kumar, A., Singh, V.K., Singh, P., Mishra, V.K., Eds.; Woodhead Publishing: Sawston, UK, 2021; pp. 73–78.
  40. Tombuloglu, H.; Slimani, Y.; Tombuloglu, G.; Alshammari, T.; Almessiere, M.; Korkmaz, A.D.; Baykal, A.; Samia, A.C.S. Engineered Magnetic Nanoparticles Enhance Chlorophyll Content and Growth of Barley Through the Induction of Photosystem Genes. Environ. Sci. Pollut. Res. 2020, 27, 34311–34321.
  41. Ali, E.; El-Shehawi, A.; Ibrahim, O.; Abdul-Hafeez, E.; Moussa, M.; Hassan, F. A Vital Role of Chitosan Nanoparticles in Improvisation the Drought Stress Tolerance in Catharanthus roseus (L.) Through Biochemical and Gene Expression Modulation. Plant Physiol. Biochem. 2021, 161, 166–175.
  42. Singh, D.; Sillu, D.; Kumar, A.; Agnihotri, S. Dual Nanozyme Characteristics of Iron Oxide Nanoparticles Alleviate Salinity Stress and Promote the Growth of An Agroforestry Tree, Eucalyptus tereticornis Sm. Environ. Sci. Nano 2021, 8, 1308–1325.
  43. Chaplygin, V.; Mandzhieva, S.; Minkina, T.; Barahov, A.; Nevidomskaya, D.; Kizilkaya, R.; GULSER, C.; Chernikova, N.; Mazarji, M.; Iljina, L.; et al. Accumulating Capacity of Herbaceous Plants of the Asteraceae and Poaceae Families Under Technogenic Soil Pollution with Zinc and Cadmium. Eeurasian J. Soil Sci. 2020, 9, 165–172.
  44. Ghazaryan, K.; Movsesyan, H.; Gevorgyan, A.; Minkina, T.; Sushkova, S.; Rajput, V.; Mandzhieva, S. Comparative Hydrochemical Assessment of Groundwater Quality from Different Aquifers for Irrigation Purposes Using IWQI: A Case-Study from Masis Province in Armenia. Groundw. Sustain. Dev. 2020, 11, 100459.
  45. Ennaji, W.; Barakat, A.; El Baghdadi, M.; Rais, J. Heavy Metal Contamination in Agricultural Soil and Ecological Risk Assessment in The Northeast Area of Tadla Plain, Morocco. J. Sediment. Environ. 2020, 5, 307–320.
  46. Zamora-Ledezma, C.; Negrete-Bolagay, D.; Figueroa, F.; Zamora-Ledezma, E.; Ni, M.; Alexis, F.; Guerrero, V.H. Heavy Metal Water Pollution: A Fresh Look About Hazards, Novel and Conventional Remediation Methods. Environ. Technol. Innov. 2021, 22, 101504.
  47. Galati, S.; Gullì, M.; Giannelli, G.; Furini, A.; DalCorso, G.; Fragni, R.; Buschini, A.; Visioli, G. Heavy Metals Modulate DNA Compaction and Methylation at CpG Sites in the Metal Hyperaccumulator Arabidopsis halleri. Environ. Mol. Mutagen. 2021, 62, 133–142.
  48. Kontaş, S.; Bostancı, D. Genotoxic Effects of Environmental Pollutant Heavy Metals on Alburnus chalcoides (Pisces: Cyprinidae) Inhabiting Lower Melet River (Ordu, Turkey). Bull. Environ. Contam. Toxicol. 2020, 104, 763–769.
  49. Sall, M.L.; Diaw, A.K.D.; Gningue-Sall, D.; Aaron, S.E.; Aaron, J.-J. Toxic Heavy Metals: Impact on the Environment and Human Health, and Treatment with Conducting Organic Polymers, A Review. Environ. Sci. Pollut. Res. 2020, 27, 29927–29942.
  50. Raja, V.; Lakshmi, R.V.; Sekar, C.P.; Chidambaram, S.; Neelakantan, M.A. Health Risk Assessment of Heavy Metals in Groundwater of Industrial Township Virudhunagar, Tamil Nadu, India. Arch. Environ. Contam. Toxicol. 2021, 80, 144–163.
  51. Zhao, Q.; Bai, J.; Gao, Y.; Zhang, G.; Lu, Q.; Jia, J. Heavy Metal Contamination in Soils from Freshwater Wetlands to Salt Marshes in the Yellow River Estuary, China. Sci. Total Environ. 2021, 774, 145072.
  52. Alaboudi, K.A.; Ahmed, B.; Brodie, G. Phytoremediation of Pb and Cd Contaminated Soils by Using Sunflower (Helianthus annuus) Plant. Ann. Agric. Sci. 2018, 63, 123–127.
  53. Shah, T.; Latif, S.; Saeed, F.; Ali, I.; Ullah, S.; Abdullah Alsahli, A.; Jan, S.; Ahmad, P. Seed Priming with Titanium Dioxide Nanoparticles Enhances Seed Vigor, Leaf Water Status, and Antioxidant Enzyme Activities in Maize (Zea mays L.) under salinity stress. J. King Saud. Univ. Sci. 2021, 33, 101207.
  54. Shah, V.; Daverey, A. Effects of Sophorolipids Augmentation on the Plant Growth and Phytoremediation of Heavy Metal Contaminated Soil. J. Clean. Prod. 2021, 280, 124406.
  55. Chen, S.; Chen, L.; Ma, Y.; Huang, Y. Can Phosphate Compounds be Used to Reduce the Plant Uptake of Pb and Resist the Pb Stress in Pb-Contaminated Soils? J. Environ. Sci. 2009, 21, 360–365.
  56. Wang, M.; Chen, L.; Chen, S.; Ma, Y. Alleviation of Cadmium-Induced Root Growth Inhibition in Crop Seedlings by Nanoparticles. Ecotoxicol. Environ. Saf. 2012, 79, 48–54.
  57. Tripathi, D.K.; Singh, V.P.; Prasad, S.M.; Chauhan, D.K.; Dubey, N.K. Silicon Nanoparticles (SiNP) Alleviate Chromium (VI) Phytotoxicity in Pisum sativum (L.) Seedlings. Plant Physiol. Biochem. 2015, 96, 189–198.
  58. Venkatachalam, P.; Jayaraj, M.; Manikandan, R.; Geetha, N.; Rene, E.R.; Sharma, N.; Sahi, S. Zinc Oxide Nanoparticles (ZnO NPS) Alleviate Heavy Metal-Induced Toxicity in Leucaena Leucocephala Seedlings: A Physiochemical Analysis. Plant Physiol. Biochem. 2017, 110, 59–69.
  59. Konate, A.; He, X.; Zhang, Z.; Ma, Y.; Zhang, P.; Alugongo, G.M.; Rui, Y. Magnetic (Fe3O4) Nanoparticles Reduce Heavy Metals Uptake and Mitigate Their Toxicity in Wheat Seedling. Sustainability 2017, 9, 790.
  60. Cui, J.; Liu, T.; Li, F.; Yi, J.; Liu, C.; Yu, H.-Y. Silica Nanoparticles Alleviate Cadmium Toxicity in Rice Cells: Mechanisms and Size Effects. Environ. Pollut. 2017, 228, 363–369.
  61. Rizwan, M.; Ali, S.; Zia Ur Rehman, M.Z.U.; Adrees, M.; Arshad, M.; Qayyum, M.F.; Ali, L.; Hussain, A.; Chatha, S.A.S.; Imran, M. Alleviation of Cadmium Accumulation in Maize (Zea mays L.) by Foliar Spray of Zinc Oxide Nanoparticles and Biochar to Contaminated Soil. Environ. Pollut. 2019, 248, 358–367.
  62. Rizwan, M.; Ali, S.; Ali, B.; Adrees, M.; Arshad, M.; Hussain, A.; Rehman, M.Z.U.; Waris, A.A. Zinc and Iron Oxide Nanoparticles Improved the Plant Growth and Reduced the Oxidative Stress and Cadmium Concentration in Wheat. Chemosphere 2019, 214, 269–277.
  63. Li, Y.; Zhu, N.; Liang, X.; Bai, X.; Zheng, L.; Zhao, J.; Li, Y.-F.; Zhang, Z.; Gao, Y. Silica Nanoparticles Alleviate Mercury Toxicity via Immobilization and Inactivation of Hg(Ii) in Soybean (Glycine max). Environ. Sci. Nano 2020, 7, 1807–1817.
  64. Jiang, M.; Dai, S.; Wang, B.; Xie, Z.; Li, J.; Wang, L.; Li, S.; Tan, Y.; Tian, B.; Shu, Q.; et al. Gold Nanoparticles Synthesized Using Melatonin Suppress Cadmium Uptake and Alleviate Its Toxicity in Rice. Environ. Sci. Nano 2021, 8, 1042–1056.
  65. Yan, S.; Wu, F.; Zhou, S.; Yang, J.; Tang, X.; Ye, W. Zinc Oxide Nanoparticles Alleviate the Arsenic Toxicity and Decrease the Accumulation of Arsenic in Rice (Oryza sativa L.). BMC Plant Biol. 2021, 21, 1–11.
  66. Noman, M.; Ahmed, T.; Hussain, S.; Niazi, M.B.K.; Shahid, M.; Song, F. Biogenic Copper Nanoparticles Synthesized by Using a Copper-Resistant Strain Shigella Flexneri Snt22 Reduced the Translocation of Cadmium from Soil to Wheat Plants. J. Hazard. Mater. 2020, 398, 123175.
  67. Noman, M.; Shahid, M.; Ahmed, T.; Tahir, M.; Naqqash, T.; Muhammad, S.; Song, F.; Abid, H.M.A.; Aslam, Z. Green Copper Nanoparticles drom A Native Klebsiella Pneumoniae Strain Alleviated Oxidative Stress Impairment of Wheat Plants by Reducing the Chromium Bioavailability and Increasing the Growth. Ecotoxicol. Environ. Saf. 2020, 192, 110303.
  68. Ahmed, T.; Noman, M.; Manzoor, N.; Shahid, M.; Abdullah, M.; Ali, L.; Wang, G.; Hashem, A.; Al-Arjani, A.-B.F.; Alqarawi, A.A.; et al. Nanoparticle-Based Amelioration of Drought Stress and Cadmium Toxicity in Rice via Triggering the Stress Responsive Genetic Mechanisms and Nutrient Acquisition. Ecotoxicol. Environ. Saf. 2021, 209, 111829.
  69. Manzoor, N.; Ahmed, T.; Noman, M.; Shahid, M.; Nazir, M.M.; Ali, L.; Alnusaire, T.S.; Li, B.; Schulin, R.; Wang, G. Iron Oxide Nanoparticles Ameliorated the Cadmium and Salinity Stresses in Wheat Plants, Facilitating Photosynthetic Pigments and Restricting Cadmium Uptake. Sci. Total Environ. 2021, 769, 145221.
  70. Zhou, P.; Adeel, M.; Shakoor, N.; Guo, M.; Hao, Y.; Azeem, I.; Li, M.; Liu, M.; Rui, Y. Application of Nanoparticles Alleviates Heavy Metals Stress and Promotes Plant Growth: An Overview. Nanomaterials 2020, 11, 26.
  71. Ahmad, P.; Alyemeni, M.N.; Al-Huqail, A.A.; Alqahtani, M.A.; Wijaya, L.; Ashraf, M.; Kaya, C.; Bajguz, A. Zinc Oxide Nanoparticles Application Alleviates Arsenic (As) Toxicity in Soybean Plants by Restricting the Uptake of as and Modulating Key Biochemical Attributes, Antioxidant Enzymes, Ascorbate-Glutathione Cycle and Glyoxalase System. Plants 2020, 9, 825.
  72. Katiyar, P.; Yadu, B.; Korram, J.; Satnami, M.L.; Kumar, M.; Keshavkant, S. Titanium Nanoparticles Attenuates Arsenic Toxicity by Up-Regulating Expressions of Defensive Genes in Vigna radiata L. J. Environ. Sci. 2020, 92, 18–27.
  73. Hussain, B.; Lin, Q.; Hamid, Y.; Sanaullah, M.; Di, L.; Hashmi, M.L.U.R.; Khan, M.B.; He, Z.; Yang, X. Foliage Application of Selenium and Silicon Nanoparticles Alleviates Cd And Pb Toxicity in Rice (Oryza sativa L.). Sci. Total Environ. 2020, 712, 136497.
  74. Islam, A.; Shelia, V.; Ludwig, F.; de Bruyn, L.L.; Rahman, M.H.U.; Hoogenboom, G. Bringing Farmers’ Perceptions into Science and Policy: Understanding Salinity Tolerance of Rice in Southwestern Bangladesh Under Climate Change. Land Use Policy 2021, 101, 105159.
  75. Ahmad, I.; Akhtar, M.S. Use of Nanoparticles in Alleviating Salt Stress. In Salt Stress, Microbes, and Plant Interactions: Causes and Solution; Akhtar, M.S., Ed.; Springer: Singapore, 2019; Volume 1, pp. 199–215.
  76. Khadka, K.; Earl, H.J.; Raizada, M.N.; Navabi, A. A Physio-Morphological Trait-Based Approach for Breeding Drought Tolerant Wheat. Front. Plant Sci. 2020, 11, 715.
  77. Kumar, A.; Singh, S.; Gaurav, A.K.; Srivastava, S.; Verma, J.P. Plant Growth-Promoting Bacteria: Biological Tools for the Mitigation of Salinity Stress in Plants. Front. Microbiol. 2020, 11, 1216.
  78. El-Saber, M.M.; A Mahdi, A.; Hassan, A.H.; Farroh, K.Y.; Osman, A. Effects of Magnetite Nanoparticles on Physiological Processes to Alleviate Salinity Induced Oxidative Damage in Wheat. J. Sci. Food Agric. 2021.
  79. Farhangi-Abriz, S.; Torabian, S. Nano-Silicon Alters Antioxidant Activities of Soybean Seedlings Under Salt Toxicity. Protoplasma 2018, 255, 953–962.
  80. Mushtaq, A.; Rizwan, S.; Jamil, N.; Ishtiaq, T.; Irfan, S.; Ismail, T.; Malghani, M.N.; Shahwani, M.N. Influence of Silicon Sources and Controlled Release Fertilizer on the Growth of Wheat Cultivars of Balochistan Under Salt Stress. Pak. J. Bot. 2019, 51, 1561–1567.
  81. Farouk, S.; Al-Amri, S.M. Exogenous Zinc Forms Counteract NaCl-Induced Damage by Regulating the Antioxidant System, Osmotic Adjustment Substances, and Ions in Canola (Brassica napus L. cv. Pactol) Plants. J. Soil Sci. Plant Nutr. 2019, 19, 887–899.
  82. Pérez-Labrada, F.; López-Vargas, E.R.; Ortega-Ortiz, H.; Cadenas-Pliego, G.; Benavides-Mendoza, A.; Juárez-Maldonado, A. Responses of Tomato Plants under Saline Stress to Foliar Application of Copper Nanoparticles. Plants 2019, 8, 151.
  83. Mohamed, A.K.S.H.; Qayyum, M.F.; Abdel-Hadi, A.; Rehman, R.A.; Ali, S.; Rizwan, M. Interactive Effect of Salinity and Silver Nanoparticles on Photosynthetic and Biochemical Parameters of Wheat. Arch. Agron. Soil Sci. 2017, 63, 1736–1747.
  84. Abdoli, S.; Ghassemi-Golezani, K.; Alizadeh-Salteh, S. Responses of Ajowan (Trachyspermum ammi L.) to Exogenous Salicylic Acid and Iron Oxide Nanoparticles under Salt Stress. Environ. Sci. Pollut. Res. 2020, 27, 36939–36953.
  85. Mahmoud, A.W.M.; Abdeldaym, E.A.; Abdelaziz, S.M.; El-Sawy, M.B.I.; Mottaleb, S.A. Synergetic Effects of Zinc, Boron, Silicon, and Zeolite Nanoparticles on Confer Tolerance in Potato Plants Subjected to Salinity. Agronomy 2019, 10, 19.
  86. Mozafari, A.-A.; Ghadakchi Asl, A.G.; Ghaderi, N. Grape Response to Salinity Stress and Role of Iron Nanoparticle and Potassium Silicate to Mitigate Salt Induced Damage Under in vitro Conditions. Physiol. Mol. Biol. Plants 2018, 24, 25–35.
  87. Mozafari, A.A.; Dedejani, S.; Ghaderi, N. Positive Responses of Strawberry (Fragaria × ananassa Duch.) Explants to Salicylic and Iron Nanoparticle Application under Salinity Conditions. Plant Cell Tissue Organ Cult. 2018, 134, 267–275.
  88. Kafi, M.; Nabati, J.; Saadatian, B.; Oskoueian, A.; Shabahang, J. Potato Response to Silicone Compounds (Micro and Nanoparticles) and Potassium as Affected by Salinity Stress. Ital. J. Agron. 2019, 14, 162–169.
  89. Mahmoud, L.M.; Dutt, M.; Shalan, A.M.; El-Kady, M.E.; El-Boray, M.S.; Shabana, Y.; Grosser, J.W. Silicon Nanoparticles Mitigate Oxidative Stress of in vitro-Derived Banana (Musa acuminata ‘Grand Nain’) under Simulated Water Deficit or Salinity Stress. S. Afr. J. Bot. 2020, 132, 155–163.
  90. Baz, H.; Creech, M.; Chen, J.; Gong, H.; Bradford, K.; Huo, H. Water-Soluble Carbon Nanoparticles Improve Seed Germination and Post-Germination Growth of Lettuce under Salinity Stress. Agronomy 2020, 10, 1192.
  91. Noohpisheh, Z.; Amiri, H.; Mohammadi, A.; Farhadi, S. Effect of the Foliar Application of Zinc Oxide Nanoparticles on Some Biochemical and Physiological Parameters of Trigonella foenum-graecum under Salinity Stress. Plant Biosyst. Int. J. Deal. Asp. Plant Biol. 2021, 155, 267–280.
  92. Faizan, M.; Bhat, J.A.; Chen, C.; Alyemeni, M.N.; Wijaya, L.; Ahmad, P.; Yu, F. Zinc Oxide Nanoparticles (Zno-NPs) Induce Salt Tolerance by Improving the Antioxidant System and Photosynthetic Machinery in Tomato. Plant Physiol. Biochem. 2021, 161, 122–130.
  93. Kumari, A.; Kaur, R.; Kaur, R. An Insight into Drought Stress and Signal Transduction of Abscisic Acid. Plant Sci. Today 2018, 5, 72–80.
  94. Wang, R.-K.; Li, L.-L.; Cao, Z.-H.; Zhao, Q.; Li, M.; Zhang, L.-Y.; Hao, Y.-J. Molecular Cloning and Functional Characterization of a Novel Apple Mdcipk6l Gene Reveals Its Involvement in Multiple Abiotic Stress Tolerance in Transgenic Plants. Plant Mol. Biol. 2012, 79, 123–135.
  95. Chandra, P.; Wunnava, A.; Verma, P.; Chandra, A.; Sharma, R.K. Strategies to Mitigate the Adverse Effect of Drought Stress on Crop Plants—Influences of Soil Bacteria: A Review. Pedosphere 2021, 31, 496–509.
  96. Sanjari, S.; Shobbar, Z.-S.; Ghanati, F.; Afshari-Behbahanizadeh, S.; Farajpour, M.; Jokar, M.; Khazaei, A.; Shahbazi, M. Molecular, Chemical, and Physiological Analyses of Sorghum Leaf Wax under Post-Flowering Drought Stress. Plant Physiol. Biochem. 2021, 159, 383–391.
  97. Farooq, M.; Wahid, A.; Kobayashi, N.; Fujita, D.; Basra, S.M.A. Plant Drought Stress: Effects, Mechanisms and Management. Agron. Sustain. Dev. 2009, 29, 185–212.
  98. Hu, Y.; Schmidhalter, U. Drought and Salinity: A Comparison of Their Effects on Mineral Nutrition of Plants. J. Plant Nutr. Soil Sci. 2005, 168, 541–549.
More
© Text is available under the terms and conditions of the Creative Commons Attribution (CC BY) license; additional terms may apply. By using this site, you agree to the Terms and Conditions and Privacy Policy.
Upload a video for this entry
Information
Subjects: Plant Sciences
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register :
. Harish
View Times: 1.9K
Revisions: 2 times (View History)
Update Date: 19 Jul 2021
Table of Contents
Academic Video Service
Feedback