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Reference Detail
| Reference | ||
|---|---|---|
| Author | Long W., Wang Y., Zhu S., Jing W., Wang Y., Ren Y., Tian Y., Liu S., Liu X., Chen L., Wang D., Zhong M., Zhang Y., Hu T., Zhu J., Hao Y., Zhu X., Zhang W., Wang C., Zhang W., Wan J. | |
| Title | FLOURY shrunken endosperm1 Connects Phospholipid Metabolism and Amyloplast Development in Rice. | |
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Abstract: Starch synthesized and stored in amyloplasts serves as the major energy storage molecule in cereal endosperm. To elucidate the molecular mechanisms underlying amyloplast development and starch synthesis, we isolated a series of floury endosperm mutants in rice (<i>Oryza sativa</i>). We identified the rice mutant <i>FLOURY shrunken endosperm1</i> (<i>FSE1</i>), which exhibited obvious defects in the development of compound starch grains, decreased starch content, and altered starch physicochemical features. Map-based cloning showed that <i>FSE1</i> encodes a phospholipase-like protein homologous to phosphatidic acid-preferring phospholipase A1<i>FSE1</i> was expressed ubiquitously with abundant levels observed in developing seeds and roots. FSE1 was localized to both the cytosol and intracellular membranes. Lipid profiling indicated that total extra-plastidic lipids and phosphatidic acid were increased in <i>FSE1</i> plants, suggesting that FSE1 may exhibit in vivo phospholipase A1 activity on phosphatidylcholine, phosphatidylinositol, phosphatidyl-Ser, phosphatidylethanolamine, and, in particular, phosphatidic acid. Additionally, the total galactolipid content in developing <i>FSE1</i> endosperm was significantly reduced, which may cause abnormal amyloplast development. Our results identify FSE1 as a phospholipase-like protein that controls the synthesis of galactolipids in rice endosperm and provide a novel connection between lipid metabolism and starch synthesis in rice grains during endosperm development. |
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| Journal | Plant Physiol. | |
| Country | China | |
| Volume | 177(2) | |
| Pages | 698-712 | |
| Year | 2018 | |
| PubMed ID | 29717019 | |
| PubMed Central ID | 6001332 | |
| DOI | 10.1104/pp.17.01826 | |
| URL | - | |
| Relation | ||
| Gene | AGPL2 AGPL3 AGPS1 AGPS2 ALK FLO5 FSE1 ISA2 PHS8 PUL SBE1 SBE3 SSI SSIVB WX1 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
