Submergence induced changes of molecular species in membrane lipids in Arabidopsis thaliana

作     者：Mulan Wang Yunmei Shen Faqing Tao Shengchao Yang Weiqi Li 

作者机构：Yunnan Research Center on Good Agricultural Practice for Dominant Chinese Medicinal Materials Yunnan Agriculture University Kunming 650201 China Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China Department of Biology Honghe University Mengzi 661100 China Germplasm Bank of Wild Species Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China 

出 版 物：《Plant Diversity》 (植物多样性（英文版）)

年 卷 期：2016年第38卷第3期

页      面：156-162页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 09[农学] 0903[农学-农业资源与环境] 0901[农学-作物学] 0902[农学-园艺学] 0713[理学-生态学] 

基　　金：Acknowledgements The authors thank Mary Roth (Kansas Lipidomics Research Center) for her assistance with the lipid analysis  Dr. Yanxia Jia for the use of the IMAGING-PAM chlorophyll fluorometer 

主　　题：Submergence Anoxia stress Membrane lipids Lipidomics Arabidopsis thaliana 

摘      要：The composition of membrane lipids is sensitive to environmental *** is a type of stress often encountered by ***,how the molecular species of membrane lipids respond to submergence has not yet been *** this study,we used a lipidomic approach to profile the molecular species of membrane lipids in whole plants of Arabidopsis thaliana that were completely submerged for three *** plants survived one day of submergence,after which,we found that the total membrane lipids were only subtly decreased,showing significant decreases of monogalactosyldiacylglycerol(MGDG)and phosphatidylcholine(PC)and an increase of phosphatidic acid(PA);however,the basic lipid composition was *** contrast,three days of submergence caused plants to die,and the membranes deteriorated via the rapid loss of 96% of lipid content together with a 229% increase in *** turnover of molecular species from PG and MGDG to PA indicated that submergenceinduced lipid changes occurred through PA-mediated *** addition,molecular species of extraplastidic PG degraded sooner than plastidic ones,lyso-phospholipids exhibited various patterns of change,and the double-bond index(DBI)remained unchanged until membrane *** results revealed the unique changes of membrane lipids upon submergence and suggested that the major cause of the massive lipid degradation could be anoxia.