The @entity48735 mutant locus of XXXX encodes a phosphatidylglycerolphosphate synthase with impaired activity.

@entity958 @entity167 @entity13667 @entity38650 @entity48735 @entity3634
@entity3634 is a ubiquitous phospholipid that is also present in the photosynthetic membranes of plants. Multiple independent lines of evidence suggest that this lipid plays a critical role for the proper function of photosynthetic membranes and cold acclimation. In eukaryotes, different subcellular compartments are competent for the biosynthesis of @entity3634 . Details on the plant-specific pathways in different organelles are scarce. Here, we describe a @entity3634 biosynthesis-deficient mutant of @entity958 , @entity48735 . The overall content of @entity3634 is reduced by 30%. This mutant carries a point mutation in the @entity13667 - @entity167 phosphotransferase motif of the @entity38650 synthase (EC 2.7.8.5) isoform encoded by a gene on chromosome 2. The mutant shows an 80% reduction in plastidic phosphatidylglycerolphosphate synthase activity consistent with the plastidic location of this particular isoform. Mutant plants are pale green, and their photosynthesis is impaired. This mutant provides a promising new tool to elucidate the biosynthesis and function of plastidic @entity3634 in seed plants.
