Knockout of a gene encoding a Gγ protein boosts alkaline tolerance in cereal crops  

作　　者：Peitong Wang Jian Feng Ma 

机构地区：[1]Institute of Plant Science and Resources,Okayama University,Chuo 2-20-1,Kurashiki,710-0046,Japan

出　　处：《aBIOTECH》2023年第2期180-183,共4页生物技术通报（英文版）

摘　　要：Sorghum is highly tolerant to alkaline stress,but the underlying mechanisms are not well understood.Here,based on genotypic difference in alkaline tolerance of sorghum,it was found that AT1(Alkaline tolerance 1)encoding a G protein is involved in alkaline tolerance through negatively modulating the phosphorylation level of PIP2,an aquaporin with transport activity for H_(2)O_(2).Knockout of AT1 releases its inhibition of PIP2,thereby resulting in an increased transport of H_(2)O_(2)from the cytosol into the apoplast,subsequently boosting alkaline tolerance.

关 键 词：Alkaline stress SORGHUM H_(2)O_(2) AQUAPORIN G protein 

分 类 号：S514[农业科学—作物学]