The lectin gene TRpL1 of tetraploid Robinia pseudoacacia L.response to salt stress  

作　　者：Shuo Liu Yaxuan Jiang Xinyu Guo Liping Xu Pei Lei Qiuxiang Luo Jianxin Liu Wei Li Lei Tao Fanjuan Meng 

机构地区：[1]College of Life Science,Northeast Forestry University,Harbin 150040,People’s Republic of China [2]State Key Laboratory of Tree Genetics and Breeding,Northeast Forestry University,Harbin 150040,People’s Republic of China [3]Harbin Engineering University,Harbin 150001,People’s Republic of China [4]Crop Tillage and Cultivation Institute,Heilongjiang Academy of Agricultural Science,Harbin 150028,People’s Republic of China

出　　处：《Journal of Forestry Research》2023年第2期497-505,共9页林业研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(32071728)。

摘　　要：Lectins are natural proteins in animals,plants,and microorganisms and can be divided into 12 families.These lectins play important roles in various environmental stresses.Some polyploid plants show tolerance to environmental stresses and to insect pests.However,the mechanism of stress tolerance is unclear.Tetraploid Robinia pseudoacacia(4×)under salt stress showed higher tolerance than diploid R.pseudoacacia(2×).As lectin can improve stress tolerance,it was questioned whether the stress resistance of polyploid plants was related to the lectin protein.In this study,salt resistance of lectin gene TRpL1 was verified by its over-expression in plants.In addition,salt resistance of lectin protein by E.coli strains was detected.The data revealed that the over-expression transgenic plants of TRpL1 showed better salt tolerance than control plants under salt stress,and the TRpL1-expressing strain also grew better in the medium with added NaCl.Therefore,tetraploid plants can resist salt stress through TRpL1 protein regulation.

关 键 词：Tetraploid Robinia pseudoacacia lectin Salt stress POLYPLOID 

分 类 号：S792.27[农业科学—林木遗传育种]