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Effect of Cadmium Stress on the Growth,Physiology,Stress Markers,Antioxidants and Stomatal Behaviour of Two Genotypes of Chickpea(Cicer arietinum L.)

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Phyton-International Journal of Experimental Botany 2022年第9期91卷 1987-2004页

作者： sayyada bushra Shahla Faizan Zeenat Mushtaq Alisha Hussain Khalid Rehman Hakeem Environmental Physiology Laboratory Department of BotanyAligarh Muslim UniversityAligarh202002India Department of Biological Sciences Faculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia Princess Dr NajlaBint Saud Al-Saud Center for Excellence Research in Biotechnology King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Public Health Daffodil International UniversityDhaka1341Bangladesh

The current work was performed to know the impact of cadmium(Cd)toxicity on two different genotypes of chickpea(Cicer arietinum L.)namely Pusa-BG1053 and *** was applied in the form of cadmium chloride(CdCl_(2)),in varying levels,0,25,50,75,and 100 mg Cd kg^(-1)*** growth as well as physiological attributes were decreased with increasing concentration of *** genotypes showed the maximum and significant reduction at the maximum dose of Cd(100 mg Cd kg^(-1)soil).Results of this study proved that the genotype Pusa-BG1053 was more tolerant and showed a lower decline in growth,photosynthetic and biochemical attributes than *** later genotype showed the maximum reduction and was sensitive to Cd stress.A better activity of antioxidants protected Pusa-BG1053 from Cd toxicity;on the other hand,the activity of antioxidants was much lower in *** electron microscopic studies showed differences in both *** Pusa-BG1053,stomatal quantity was higher and stomata were slightly close to the characteristic guard *** Pusa-BG372 stomata were lower,slightly open and with highly affected guard *** cell mortality due to the harsh effects of Cd appeared to be more evident in Pusa-BG372 than Pusa-BG1053,which was visible under a confocal *** a result of this study,Pusa-BG1053 was a more tolerant genotype,and exhibited a minimum reduction in terms of all studied parameters than Pusa-BG372,which was a sensitive genotype to Cd toxicity.

关键词： Antioxidants cadmium chickpea genotypes oxidative stress

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Changes in Growth,Photosynthetic Pigments,Cell Viability,Lipid Peroxidation and Antioxidant Defense System in Two Varieties of Chickpea(Cicer arietinum L.)Subjected to Salinity Stress

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Phyton-International Journal of Experimental Botany 2022年第1期91卷 149-168页

作者： Zeenat Mushtaq Shahla Faizan Basit Gulzar Humira Mushtaq sayyada bushra Alisha Hussain Khalid Rehman Hakeem Environmental Physiology Laboratory Department of BotanyAligarh Muslim UniversityAligarh202002India Cellular Differentiation and Molecular Genetics Section Department of BotanyJamia HamdardNew Delhi110062India Research and Training Centre for Pollinators Pollinizers and Pollination Management SectionDivision of EntomologySKUAST KashmirSrinagar190025India Department of Biological Sciences Faculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia

Salinity is one of the most severe abiotic stresses for crop *** present study investigates the salinityinduced modulation in growth indicators,morphology and movement of stomata,photosynthetic pigments,activity of carbonic anhydrase as well as nitrate reductase,and antioxidant systems in two varieties of chickpea(Pusa-BG5023,and Pusa-BGD72).On 20^(th) day of sowing,plants were treated with varying levels of NaCl(0,50,100,150 and 200 mM)followed by sampling on 45 days of *** observations on both the varieties reveal that salt stress leads to a significant decline in growth,dry biomass,leaf area,photosynthetic pigments,protein content,stomatal behavior,cell viability,activity of nitrate reductase and carbonic anhydrase with the rise in the concentration of ***,quantitatively these changes were less in Pusa-BG5023 as compared to ***,salinity-induced oxidative stress enhanced malondialdehyde content,superoxide radicals,foliar proline content,and the enzymatic activities of superoxide dismutase,catalase,and *** variety Pusa-BGD72 was found more sensitive than Pusa-BG5023 to salt *** of different graded concentrations(50,100,150 and 200 mM)of sodium chloride,50 mM was least toxic,and 200 mM was most *** differential behavior of these two varieties measured in terms of stomatal behavior,cell viability,photosynthetic pigments,and antioxidant defense system can be used as prospective indicators for selection of chickpea plants for salt tolerance and sensitivity.

关键词： Salt stress ion homeostasis antioxidant defense cell viability chickpea

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