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| 著者 | Liu G., Zhang K., Ai J., Su Y., Deng X., Hong Y., Wang X. | |
| タイトル | Patatin-related phospholipase A, pPLAIIIalpha, modulates the longitudinal growth of vegetative tissues and seeds in rice. | |
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Abstract: Patatin-related phospholipase A (pPLA) hydrolyses glycerolipids to produce fatty acids and lysoglycerolipids. The Oryza sativa genome has 21 putative pPLAs that are grouped into five subfamilies. Overexpression of OspPLAIIIalpha resulted in a dwarf phenotype with decreased length of rice stems, roots, leaves, seeds, panicles, and seeds, whereas OspPLAIIIalpha-knockout plants had longer panicles and seeds. OspPLAIIIalpha-overexpressing plants were less sensitive than wild-type and knockout plants to gibberellin-promoted seedling elongation. OspPLAIIIalpha overexpression and knockout had an opposite effect on the expression of the growth repressor SLENDER1 in the gibberellin signalling process. OspPLAIIIalpha-overexpressing plants had decreased mechanical strength and cellulose content, but exhibited increases in the expression of several cellulose synthase genes. These results indicate that OspPLAIIIalpha plays a role in rice vegetative and reproductive growth and that the constitutive, high activity of OspPLAIIIalpha suppresses cell elongation. The decreased gibberellin response in overexpressing plants is probably a result of the decreased ability to make cellulose for anisotropic cell expansion. |
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| 掲載誌 | J. Exp. Bot. | |
| Country | China | |
| 刊数 | ||
| ページ | ||
| 発刊年 | 2015 | |
| PubMed ID | 26290597 | |
| PubMed Central ID | - | |
| DOI | 10.1093/jxb/erv402 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | BC6 BC7 CESA1 CESA7 CESA8 DEP3 GA2OX1 GID1 GNP1 MATL MATL2 PPLAIIALPHA PPLAIITHETA SD1 SLR1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | |
| INSD | - | |
| 系統 |
野生イネ コアコレクション |
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| 突然変異系統(遺伝研 Collection) | - | |
| 種子不稔系統 | - | |
| 致死変異体系統 | - | |
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組織別発生段階 - 突然変異系統(遺伝子) |
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| 栽培イネ品種(遺伝研 Collection) | - | |
| 組織別発生段階 | - | |
