Arabidopsis/enzymology; CDPdiacylglycerol-Serine O-Phosphatidyltransferase/metabolism; Phosphatidylserines/metabolism; Pollen/growth & development; Amino Acid Sequence; Arabidopsis/genetics; Arabidopsis/growth & development; Arabidopsis/ultrastructure; Arabidopsis Proteins/genetics; Arabidopsis Proteins/metabolism; CDPdiacylglycerol-Serine O-Phosphatidyltransferase/genetics; Cell Nucleolus/metabolism; DNA, Complementary/genetics; Endoplasmic Reticulum/metabolism; Escherichia coli/genetics; Escherichia coli/metabolism; Flowers/enzymology; Flowers/genetics; Flowers/growth & development; Flowers/ultrastructure; Gene Expression Regulation, Developmental; Gene Expression Regulation, Plant; Plant Leaves/enzymology; Plant Leaves/genetics; Plant Leaves/growth & development; Plant Leaves/ultrastructure; Plant Roots/enzymology; Plant Roots/genetics; Plant Roots/growth & development; Plant Roots/ultrastructure; Plants, Genetically Modified/enzymology; Plants, Genetically Modified/genetics; Plants, Genetically Modified/growth & development; Plants, Genetically Modified/ultrastructure; Pollen/enzymology; Pollen/genetics; Pollen/ultrastructure; Promoter Regions, Genetic/genetics; RNA, Plant/genetics; Recombinant Fusion Proteins; Sequence Alignment; Sequence Deletion