Submergence induced changes of molecular species in membrane lipids in Arabidopsis thaliana.
Wang, Mulan; Shen, Yunmei; Tao, Faqing; Yang, Shengchao; Li, Weiqi
2016
Source PublicationPlant diversity
ISSN2468-2659
Volume38Issue:3Pages:156-162
AbstractThe composition of membrane lipids is sensitive to environmental stresses. Submergence is a type of stress often encountered by plants. However, how the molecular species of membrane lipids respond to submergence has not yet been characterised. In 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 days. The 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 retained. In 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 PA. The turnover of molecular species from PG and MGDG to PA indicated that submergence-induced lipid changes occurred through PA-mediated degradation. In 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 deterioration. Our results revealed the unique changes of membrane lipids upon submergence and suggested that the major cause of the massive lipid degradation could be anoxia.
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/64894
Collection植物化学与西部植物资源持续利用国家重点实验室
Recommended Citation
GB/T 7714
Wang, Mulan,Shen, Yunmei,Tao, Faqing,et al. Submergence induced changes of molecular species in membrane lipids in Arabidopsis thaliana.[J]. Plant diversity,2016,38(3):156-162.
APA Wang, Mulan,Shen, Yunmei,Tao, Faqing,Yang, Shengchao,&Li, Weiqi.(2016).Submergence induced changes of molecular species in membrane lipids in Arabidopsis thaliana..Plant diversity,38(3),156-162.
MLA Wang, Mulan,et al."Submergence induced changes of molecular species in membrane lipids in Arabidopsis thaliana.".Plant diversity 38.3(2016):156-162.
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