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

作　　者：Sayyada Bushra Shahla Faizan Zeenat Mushtaq Alisha Hussain Khalid Rehman Hakeem 

机构地区：[1]Environmental Physiology Laboratory,Department of Botany,Aligarh Muslim University,Aligarh,202002,India [2]Department of Biological Sciences,Faculty of Science,King Abdulaziz University,Jeddah,21589,Saudi Arabia [3]Princess Dr NajlaBint Saud Al-Saud Center for Excellence Research in Biotechnology,King Abdulaziz University,Jeddah,21589,Saudi Arabia [4]Department of Public Health,Daffodil International University,Dhaka,1341,Bangladesh

出　　处：《Phyton-International Journal of Experimental Botany》2022年第9期1987-2004,共18页国际实验植物学杂志（英文）

摘　　要：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 Pusa-BG372.Cadmium was applied in the form of cadmium chloride(CdCl_(2)),in varying levels,0,25,50,75,and 100 mg Cd kg^(-1)soil.Plant growth as well as physiological attributes were decreased with increasing concentration of Cd.Both 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 Pusa-BG372.This 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 Pusa-BG372.Scanning electron microscopic studies showed differences in both genotypes.In Pusa-BG1053,stomatal quantity was higher and stomata were slightly close to the characteristic guard cells.In Pusa-BG372 stomata were lower,slightly open and with highly affected guard cells.Root 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 microscope.As 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 

分 类 号：S529[农业科学—作物学]