Effect of acid phosphatase produced by Trichoderma asperellum Q1 on growth of Arabidopsis under salt stress

作     者：ZHAO Lei LIU Qun ZHANG Ya-qing CUI Qing-yu LIANG Yuan-cun 

作者机构：Institute of Environment and Ecology Shandong Normal University Jinan 250014 P.R. China College of Life Science Shandong Normal University Jinan 250014 P.R. China College of Plant Protection Shandong Agricultural University Tai'an 271018 P.R. China 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2017年第16卷第6期

页      面：1341-1346页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 

基　　金：supported by the National Natural Science Foundation of China (31171806) 

主　　题：Trichoderma asperellum Arabidopsis thaliana acid phosphatase plant-growth promotion salt stress 

摘      要：Salt stress is a major environmental factor that inhibits crop *** *** the most efficient biocontrol fungi and some of the strains can stimulate plant *** solubilization is known as one of the main mechanisms in promoting plant growth,but the underlying mechanisms of phosphate solubilization in the salinity still need to be *** Trichoderma asperellum Q1 isolated and identified in our lab is a beneficial rhizosphere biocontrol fungus with a high phosphate solubilization *** could produce acid and alkaline phosphatases when using insoluble organic phosphorus as the sole phosphorus source,the salt stress increased the phosphorus-solubilization ability of the strain and the activities of the two ***,an acid phosphatase was purified from the fermentation broth by ammonium sulphate precipitation,ion-exchange,and gel filtration *** molecular weight was 55 k Da as determined by *** purified acid phosphatase was used to investigate growth performance of Arabidopsis thaliana by plate assay and the result showed that it contributed to Arabidopsis growth by transforming organic phosphate into a soluble inorganic form under salt *** our knowledge,this is the first report on acid phosphatase purification from *** and its function in regulation of plant growth under salt stress.