Lipid remodeling under acidic conditions and its interplay with low Pi stress in Arabidopsis.

ABSTRACT:

Key message

Here we show that accumulation of galactose-containing lipids in plastid membranes in shoots and the other membranes in roots maintains Arabidopsis growth under acidic stress and acidic phosphate deficiency. Soil acidification and phosphate deficiency are closely related to each other in natural environments. In addition to the toxicity of high proton concentrations, acid soil can lead to imbalances of ion availability and nutritional deficiencies, including inorganic phosphate (Pi). Among plants, activation of non-phosphorus-containing galactolipid, digalactosyldiacylglycerol (DGDG), synthesis concomitant with phospholipid degradation, namely membrane lipid remodeling, is crucial for coping with Pi starvation. However, regulation mechanisms of membrane lipid compositio

SUBMITTER: Murakawa M 

PROVIDER: S-EPMC6695348 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature