Vol. 5, Issue 5 (2017)
Effect of Salinity stress on Photosynthesis and expression of salt tolerant genes in Chickpea (Cicer arietinum L.)
Author(s): Rajat Chaudhary, Mukesh Kumar, RS Sengar, Pushpendra Kumar, SK Singh and Yogesh Kumar
Abstract: Chickpea (Cicer arietinum L.) is a salt sensitive leguminous crop species, but some genetic variation for salinity tolerance exists. The experiment was conducted in pots, in which fifteen genotypes of chickpea were subjected to 0, 40 or 60 mM NaCl added to the soil to determine the variation in salt tolerance. Photosynthetic rate were measured in the reproductive of both saline and non- saline condition. The results showed photosynthesis rate decreased under both the salinity levels. The genotypes CSG 8962, L 550 and JG 16 are found the most tolerant among studied genotypes under both salinity levels (S1 and S2). The HKT1 gene was expressed higher in susceptible genotype (K 850) in leaves and roots under both the salinity levels. P5CS gene was expressed higher in susceptible genotype (K 850) in leaves tissue. In root tissue, no expression was observed. LEA2 gene was detectable under the water deficit condition in leaves and roots under both the salinity levels. The transcription factor WRKY and NAC were expressed higher in leaves and roots in tolerant genotype CSG 8962. The genotype CSG 8962 showed high levels of tolerance compared for the other cultivars. The results suggest that chickpea cultivars tolerant of salinity have better growth potential than do sensitive ones.
Pages: 229-237 | 1129 Views 84 Downloads
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How to cite this article:
Rajat Chaudhary, Mukesh Kumar, RS Sengar, Pushpendra Kumar, SK Singh, Yogesh Kumar. Effect of Salinity stress on Photosynthesis and expression of salt tolerant genes in Chickpea (Cicer arietinum L.). Int J Chem Stud 2017;5(5):229-237.
