Premium
The diacylglycerol forming pathways differ among floral organs of Petunia hybrida
Author(s) -
Nakamura Yuki,
Ohta Hiroyuki
Publication year - 2007
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2007.10.053
Subject(s) - diacylglycerol kinase , phosphatidic acid , biology , diglyceride , biochemistry , phospholipase c , phosphoinositide phospholipase c , petal , phospholipase d , petunia , microbiology and biotechnology , botany , phospholipid , enzyme , membrane , protein kinase c , gene
The origin of diacylglycerol, a substrate for membrane lipid biosynthesis, is not fully understood. Here, we report that Petunia hybrida floral organs contain large amounts of diacylglycerol. Our data suggest that in stamens and pistils diacylglycerol is supplied both from phosphatidylcholine by non‐specific phospholipase C activity and de novo via the Kennedy pathway and phosphatidic acid phosphatase, whereas in petals the two‐step pathway catalyzed by phospholipase D and phosphatidic acid phosphatase predominates. Therefore, the pathways that supply diacylglycerol differ among floral reproductive organs, although large amounts of diacylglycerol are commonly accumulated in these organs.