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Salinity stress, mainly elevated levels of fluoride affects the growth and development of crop plants which causes huge decline in crop yield. Salinity stress decreases the chlorophyll pigments concentration hence reduces photosynthetic rate resulting into poor plant growth. Fluoride induced accumulation of ROS leads to oxidative stress which adversely affects plant metabolism. In plants, the attainment of salt tolerance via breeding method is difficult due to complexity and polygenic nature of salt tolerance traits. Hence, silicon application is one of the preferred approaches that have potential mitigate the adverse effect of salinity stress, especially fluoride in eco-friendly way. In this review an attempt is made to enhance the understanding in all-inclusive way.

Fluoride toxicity, plant stresses, resistance, silicon

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Rassol S, Ahmad A, Siddiqui TO, Ahmad P. Change in growth, lipid peroxidation and some key antioxidant enzymes in chickpea genotypes under salt stress. Acta Physiologiae Plantarum. 2013;35: 1039-1050.

Ali A, Basra SM, Hussain S, Iqbal J, Haji A, Sarwar M. Salt stress alleviation in field crops through nutritional supplementation of silicon. Pakistan Journal of Nutrition. 2012; 11(8):637-655.

Tak Y, Asthir B. Fluoride- induced changes in the antioxidant defence system in two contrasting cultivars of Triticum aestivum L. Research Report Fluoride. 2017;50(3):324-333.

Tylenda CA. Toxicological profile for fluoride, hydrogen fluoride and Fluorine (F). DIANE Publishing. 2011; 383.

Agalakova NI, Gusev GP. Fluoride induces oxidative stress and ATP depletion in the rat erythrocytes in vitro. Environment Toxicology and Pharmacology. 2012;34(2): 334-337.

Bhargava D, Bhardwaj N. Effect of Sodium Fluoride on Seed Germination and Seedling Growth of Triticum aestivum var. Rajasthan. 4083. Journal of Phytology. 2010;2(4):41-43.

Curnutte J, Babior B, Karnovsky M. Fluoride-mediated activation of the respiratory burst in human neutrophils: a reversible process. Journal of Clinical Investigation.1979;63:637-47.

Reddy MP, Kaur M. Sodium fluoride induced growth and metabolic changes in Salicornia brachiata Roxb. Water, Air, and Soil Pollution. 2008; 188:171-179.

Baunthiyal M, Ranghar S. Physiological and biochemical responses of plants under fluoride stress: An overview. Fluoride. 2014; 47(4):287-93.

Yadu B, Chandrakar V, Keshavkant S. Responses of plants to fluoride: An overview of oxidative stress and defense mechanisms. Research review Fluroide. 2016;49: 293-302.

Saini P, Khan S, Baunthiyal M, Sharma V. Effects of fluoride on germination, early growth and antioxidant enzyme activities of legume plant species Prosopis juliflora. Journal of Environmental Biology. 2013;34: 205-209.

Epstein E. Silicon. Annual review of plant physiology. 1999;50: 641–664.

Ma JF, Yamaji N. Silicon uptake and accumulation in higher plants. Trends in Plant Science. 2006;11: 392-397.

He C, Wang L, Liu J, Liu X, Li X, Ma J, Lin Y, Xu F. Evidence for ‘silicon’ within the cell walls of suspension-cultured rice cells. New Phytologist. 2013;200: 700–709.

Guerriero G, Hausman JF, Legay S. Silicon and the plant extracellular matrix. Frontiers in Plant Science. 2016;7: 463.

Liang YC, Chen Q, Liu Q, Zhang WH, Ding RX. Exogenous silicon increases antioxidant enzyme activity and reduces lipid peroxidation in roots of salt-stressed barley (Hordeum vulgare L.). Journal of Plant Physiology. 2003; 160:1157–1164.

Ma JF. Role of silicon in enhancing the resistance of plants to biotic and abiotic stresses. Journal of Soil Science and Plant Nutrition. 2004; 50:11-18.

Ahmad P, Ahanger MA, Alam P, Alyemeni MN, Wijaya L, Ali S, Ashraf M. Silicon (Si) supplementation alleviates NaCl toxicity in mung bean (Vigna radiata (L.) wilczek) through the modifications of physiobiochemical attributes and key antioxidant enzymes. Journal of Plant Growth Regulation. 2019;38: 70-82.

Romero-Aranda MR, Jurado O, Cuartero J. Silicon alleviates the deleterious salt effect on tomato plant growth by improving plant water status. Journal of Plant Physiology. 2006;163: 847-855.

Shu LZ, Liu YH. Effects of silicon on growth of maize seedlings under salt stress. Journal of Agro-environment Science. 2001; 20:38-40.

Zhu Z, Wei G, Li J, Qian Q, Yu J. Silicon alleviates salt stress and increases antioxidant enzymes activity in leaves of salt-stressed cucumber (Cucumis sativus L.). Plant Science. 2004;167: 527- 533.

Liang YC. Effects of Si on leaf ultrastructure, chlorophyll content and photosynthetic activity in barley under salt stress. Pedosphere. 1998;8: 289–296.

Liang YC. Effects of silicon on enzyme activity and sodium, potassium and calcium concentration in barley under salt stress. Plant and Soil. 1999;209: 217-224.

Rehman S, Harris PJC, Bourne WF, Wilkin J. The relationship between ions, vigour and salinity tolerance of Acacia seeds. Plant Soil. 2000;220: 229–233.

Khan MA, Weber DJ. Ecophysiology of high salinity tolerant plants. Tasks for vegetation science, 1st Edn. Springer, Amsterdam. 2008;40.

Lauchli A, Grattan SR. Plant growth and development under salinity stress. In: Jenks MA, Hasegawa PM, Mohan JS (eds) Advances in molecular breeding towards drought and salt tolerant crops. Springer, Berlin. 2007; 1–32.

Foolad MR, Lin GY. Genetic potential for salt tolerance during germination in Lycopersicon species. HortScience. 1997;32: 296–300.

Foolad MR, Lin GY. Genetic analysis of low temperature tolerance during germination in tomato, Solanum lycopersicum Mill. Plant Breeding. 1998;117: 171–176.

Lombardi T, Lupi B. Effect of salinity on the germination and growth of Hordeum secalinum Schreber (Poaceae) in relation to the seeds after-ripening time. Atti della societa toscana di scienze naturali, Memorie Serie B. 2006;113:37–42.

Khodarahmpour Z, Ifar M, Motamedi M. Effects of NaCl salinity on maize (Zea mays L.) at germination and early seedling stage. African Journal of Biotechnology. 2012;11: 298–304.

Sabal D, Khan TI, Saxena R. Effect of sodium fluoride on cluster bean (Cyamopsis tetragonoloba) seed germination and seedling growth. Research Report Fluoride. 2006; 39(3):228-230.

Chakrabarti S, Patra PK, Mandal B, Mahato D. Effect of Sodium fluoride on germination, seedling growth and biochemistry of Bengal gram (Cicer arieninum). Research Report Fluoride. 2012;45(3):257-262.

Garber PC. Fluoride uptake in plants. Fluoride – Quarterly Reports. 1968; 1(1):27-33.

Cooke JA. The uptake of sodium monofluoroacetate by plants and its physiological effects. Fluoride – Quarterly Report. 1976;9(4):204-212.

MacLean DC and Schneider RE. Effects of gaseous hydrogen fluoride on the yield of field-grown wheat. Environmental Pollution. 1981; 24:39-44.

Tuna MA, Persaud N and Baligar VC. Effect of fluoride and phosphate on yield and mineral composition of barley grown on three soils. Communication in Soil Science and Plant Analysis. 1998; 29:269-283.

Stevens DP, McLaughlin MJ, Alston AM. Phytotoxicity of the fluoride ion and its uptake from solution culture by Avena sativa and Lycopersicon esculentum. Plant and Soil. 1998a; 200:119-129.

Stevens DP, McLaughlin MJ, Alston AM. Phytotoxicity of hydrogen fluoride and fluoroborate and their uptake from solution culture by Avena sativa and Lycopersicon esculentum. Plant and Soil. 1998b;200: 175-184.

Datta JK, Maitra A, Mondal NK, Banerjee A. Studies on the impact of fluoride toxicity on germination and seedling growth of gram seed (Cicer arietinum L. cv. Anuradha). Journal of Stress Physiology & Biochemistry. 2012;8(1):194-202.

Gadi BR, Verma P, Amra R. Influence of NaF on seed germination, membrane stability and some Biochemicals content in Vigna seedlings. Journal of Chemical, Biological and Physical Sciences. 2012;2(3):1371-1378.

Ali A, Basra SM, Iqbal J, Hussain S, Subhani MN, Sarwar M, Haji A. Silicon mediated biochemical changes in wheat under salinized and non-salinized solution cultures. African Journal of Biotechnology. 2012;11: 606– 615.

Tuna AL, Kaya C, Ashraf M, Altunlu H, Yokas I, Yagmur B. The effects of calcium sulphate on growth, membrane stability and nutrient uptake of tomato plants grown under salt stress. Environmental and Experimental Botany. 2007;59: 173–178.

Baunthiyal M, Bhatt A, Ranghar S. Fluoride and its effects on plant metabolism. Journal of Agricultural Science and Technology. 2014;10(1): 1-27.

Kumar KA, Rao AVB. Physiological responses to fluoride in two cultivars of Mulberry. World Journal of Agricultural Science. 2008;4(4):463-466.

Saleh AH, Abdel-Kader Z. Metabolic responses of two Helianthus annus cultivars to different fluoride concentrations during germination and seedling growth stages. Egyptian Journal of Biology. 2003;5: 43-54.

Shi H, Wang X, Ye T, Chen F, Deng J, Yang P, Zhang Y, Chan Z. The Cysteine2/Histidine2-type transcription factor zinc finger of Arabidopsis thaliana 6 modulates biotic and abiotic stress responses by activating salicylic acid-related genes and C-REPEAT-BINDING FACTOR genes in Arabidopsis. Plant Physiology. 2014; 165:1367–1379.

Ahanger MA, Agarwal RM. Salinity stress induced alterations in antioxidant metabolism and nitrogen assimilation in wheat (Triticum aestivum L) as influenced by potassium supplementation. Plant Physiology and Biochemistry. 2017; 115:449–460.

Ahmad P, Hashem A, Abd-Allah EF, Alqarawi AA, John R, Egam- berdieva D, Gucel S. Role of Trichoderma harzianum in mitigating NaCl stress in Indian mustard (Brassica juncea L) through antioxidative defense system. Frontiers in Plant Science. 2015; 6:868.

Manai J, Kalai T, Gouia H, Corpas FJ. Exogenous nitric oxide (NO) ameliorates salinity-induced oxidative stress in tomato (Solanum lycopersicum) plants. Journal of Soil Science and Plant Nutrition. 2014; 14(2).

Ahmad P, Ozturk M, Sharma S, Gucel S. Effect of sodium carbonate-induced salinity–alkalinity on some key osmoprotectants, protein profile, antioxidant enzymes, and lipid peroxidation in two mulberry (Morus alba L.) cultivars. Journal of Plant Interaction. 2013;9: 460–467.

Ahmad P, Abdel Latef AA, Hashem A, Abd_Allah EF, Gucel S, Tran L-SP. Nitric oxide mitigates salt stress by regulating levels of osmolytes and antioxidant enzymes in chickpea. Frontiers in Plant Science. 2016; 7:347.

Mittler R. Oxidative stress, antioxidants and stress tolerance. Trends in Plant Science. 2002;7: 405-410.

Karabal E, Yucel M, Oktem H. Antioxidant responses of tolerant and sensitive barley cultivars to boron toxicity. Plant Sciences. 2003;164: 925-933.

Keles Y, Once I, Yenice N. Relationship between boron content and anti- oxidant compounds in citrus leaves taken from field with different water sources. Plant and Soil. 2004; 265:345-353.

Gunes A, Inal A, Bagci EG. Silicon-mediated changes of some physio- logical and enzymatic parameters symptomatic for oxidative stress in spinach and tomato grown in sodic-B toxic soil. Plant and Soil. 2007; 290:103-114.

Molassiotis A, Tanou G, Diamantidis G, Therios I.Boron-induced oxidative damage and antioxidant and nucleolytic responses in shoot tips culture of apple rootstock EM9 (Malus domestica). Environmental and Experimental Botany. 2006; 56:54-62.

Javid I H, Wahid A, Rasul E. Some growth and anatomical studies in the leaf and root of differently salt tolerant pearl millet lines under salinity. Journal of Plant Physiology. 2000; 10:185-190.

Gupta B, Huang B. Mechanism of salinity tolerance in plants: physiological, biochemical, and molecular characterization. International Journal of Genomics. 2014.

Bybordi A. Interactive effects of silicon and potassium nitrate in improving salt tolerance of wheat. Journal of Integrative Agriculture. 2014; 13:1889–1899.

Haghighi M, Afifipour Z, Mozafarian M. The effect of N–Si on tomato seed germination under salinity levels. Journal of Biological and Environmental Sciences. 2012;6(16): 87–90.

Wang XD, Ou-yang C, Fan ZR, Gao S, Chen F, Tang L. Effects of exogenous silicon on seed germination and antioxidant enzyme activities of Momordica charantia under salt stress. J Anim Plant Sci. 2010;6(3):700–708.

Lee SK, Sohn EY, Hamayun M, Yoon JY, Lee IJ. Effect of silicon on growth and salinity stress of soybean plant grown under hydroponic system. Agroforestry Systems. 2010;80: 333–340.

Kafi M, Rahimi Z. Effect of salinity and silicon on root characteristics, growth, water status, proline content and ion accumulation of purslane (Portulaca oleracea L.). Soil science and Plant Nutrition. 2011;57: 341-347.

Amirossadat Z, Ghehsareh AM, Mojiri A. Impact of silicon on decreasing of salinity stress in greenhouse cucumber (Cucumis sativus L.) in soilless culture. Journal of Biological and Environmental Sciences. 2012; 6:171-174.

Liang Y, Nikolic M, Belanger R, Gong H, Song A. Effect of silicon on crop growth, yield and quality. Silicon in Agriculture. 2015;209-223.

Detmann KC, Araujo WL, Martins SCV, Sanglard LM, Reis JV, Detmann E, Rodrigues FA, Nunes-Nesi A, Fernie AR, Damatta FM. Silicon nutrition increases grain yield, which, in turn, exerts a feed- forward stimulation of photosynthetic rates via enhanced mesophyll conductance and alters primary metabolism in rice. New Phytologist. 2012;196: 752-762.

Detmann KC, Araujo WL, Martins SCV, Fernie AR, Damatta F. Metabolic alternations triggered by silicon nutrition: Is there a signaling role for silicon? Plant Signaling and Behavior. 2013;8(1): e22523.

Hellal FA, Abdelhameid M, Abo-Basha DM, Zewainy RM. Alleviation of the adverse effects of soil salinity stress by foliar application of silicon on faba bean (Vicia faba L.). Journal of Applied Science Research. 2012;8(8): 4428–4433.

Kardoni F, Mosavi SJS, Parande S, Torbaghan ME. Effect of salinity stress and silicon application on yield and component yield of faba bean (Vicia faba). International Journal of Agriculture and Crop Sciences. 2013; 6:814–818.

Parande S, Zamani GR, Zahan MHS, Ghader M. Effects of silicon application on the yield and component of yield in the common bean (Phaseolus vulgaris) under salinity stress. International Journal of Agronomy and Plant Production. 2013;4: 1574–1579.

Mahmood S, Daur I, Al-Solaimani SG, Ahmad S, Madkour MH, Yasir M, Hirt H, Ali S, Ali Z. Plant growth promoting rhizobacteria and silicon synergistically enhance salinity tolerance of mung bean. Frontiers in Plant Science. 2016;7: 876.

Parveen N, Ashraf M. Role of silicon in mitigating the adverse effects of salt stress on growth and photosynthetic attributes of two maize (Zea mays L.) cultivars grown hydroponically. Pakistan Journal of Botany. 2010;42: 1675–1684.

Abbas T, Balal RM, Shahid MA, Pervez MA, Ayyub CM, Aqueel MA, Javaid MM. Silicon-induced alleviation of NaCl toxicity in okra (Abelmoschus esculentus) is associated with enhanced photosynthesis, osmoprotectants and antioxidant metabolism. Acta Physiologiae Plantarum. 2015;37: 6.

Aghabary K, Zhu Z, Shi QH. Influence of silicon supply on chlorophyll content, chlorophyll fluorescence, and antioxidative enzyme activities in tomato plants under salt stress. Journal of Plant Nutrition. 2004;27: 2101–2115.

Muneer S, Jeong BR. Proteomic analysis of salt-stress responsive proteins in roots of tomato (Solanum lycopersicum L.) plants towards silicon efficiency. Plant Growth Regulation. 2015;77: 133-146.

Liang YC, Chen Q, Liu Q, Zhang W, Ding R. Effects of silicon on salinity tolerance of two barley cultivars. Journal of Plant Physiology. 2003; 160:1157- 1164.

Liang Y, Zhang W, Chen Q, Liu Y, Ding R. Effect of exogenous silicon (Si) on H+-ATPase activity, phospholipids and fluidity of plasma membrane in leaves of salt-stressed barley (Hordeum vulgare L.). Environmental and Experimental Botany. 2006;57 :212–219.

Shi Y, Zhang Y, Han W, Feng R, Hu Y, Guo J, Gong H. Silicon enhances water stress tolerance by improving root hydraulic conductance in Solanum lycopersicum L. Frontiers in Plant Science. 2016;7: 196.

Zhu YX, Gong HJ, Yin JL. Role of silicon in mediating salt tolerance in plants: A review. Plants (Basel). 2019;8(6):147.
DOI: 10.3390/plants8060147

Khan A, Khan AL, Muneer S, Kim Y-H, Al-Rawahi A and Al-Harrasi A. Silicon and salinity: Crosstalk in crop-mediated stress tolerance mechanisms. Front. Plant Sci. 2019; 10:1429.
DOI: 10.3389/fpls.2019.01429.