عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In this research, we studied polyamines including putrescine (put), spermidine (spd) and spermine (spm) changes in three common bean (Phaseolus vulgaris) genotypes, K-S-31167, GE-288 and NAZ under drought stress. Our result showed steadily increase in putrescine (put) and spermine (spm) in all three genotypes. GE-288 genotype showed decrease and then increasing in spermidine (spd) content but K-S-31167 and NAZ genotypes showed steadily increasing in spermidine (spd). NAZ genotype accumulated putrescine more than other polyamines and showed the highest amount of putrescine in compare with other genotypes. K-S-31167 genotype accumulated the highest spermine content in compared with other genotypes. Our result showed significant increase in electrolyte leakage (EL) in all three genotypes. K-S-31167 as drought tolerant genotype and ZAZ as drought sensitive genotypes showed the lowest and the highest increase in EL, respectively.