Phospholipase DZ2 plays an important role in extraplastidic galactolipid biosynthesis and phosphate recycling in Arabidopsis roots.

ABSTRACT: Low phosphate (Pi) availability is one of the major constraints for plant productivity in natural and agricultural ecosystems. Plants have evolved a myriad of developmental and biochemical mechanisms to increase internal Pi uptake and utilization efficiency. One important biochemical pathway leading to an increase in internal Pi availability is the hydrolysis of phospholipids. Hydrolyzed phospholipids are replaced by nonphosphorus lipids such as galactolipids and sulfolipids, which help to maintain the functionality and structure of membrane systems. Here we report that a member of the Arabidopsis phospholipase D gene family (PLDZ2) is gradually induced upon Pi starvation in both shoots and roots. From lipid content analysis we show that an Arabidopsis pldz2 mutant is defective in the hydr

SUBMITTER: Cruz-Ramirez A 

PROVIDER: S-EPMC1564204 | biostudies-literature | 2006 Apr

REPOSITORIES: biostudies-literature