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| 文献 | ||
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| 著者 | Sakamoto, T., K. Miura, H. Itoh, T. Tatsumi, M. Ueguchi-Tanaka, K. Ishiyama, M. Kobayashi, G.K. Agrawal, S. Takeda, K. Abe, A. Miyao, H. Hirochika, H. Kitano, M. Ashikari and M. Matsuoka | |
| タイトル | An overview of gibberellin metabolism enzyme genes and their related mutants in rice. | |
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Abstract: To enhance our understanding of GA metabolism in rice (Oryza sativa), we intensively screened and identified 29 candidate genes encoding the following GA metabolic enzymes using all available rice DNA databases: ent-copalyl diphosphate synthase (CPS), ent-kaurene synthase (KS), ent-kaurene oxidase (KO), ent-kaurenoic acid oxidase (KAO), GA 20-oxidase (GA20ox), GA 3-oxidase (GA3ox), and GA 2-oxidase (GA2ox). In contrast to the Arabidopsis genome, multiple CPS-like, KS-like, and KO-like genes were identified in the rice genome, most of which are contiguously arranged. We also identified 18 GA-deficient rice mutants at six different loci from rice mutant collections. Based on the mutant and expression analyses, we demonstrated that the enzymes catalyzing the early steps in the GA biosynthetic pathway (i.e. CPS, KS, KO, and KAO) are mainly encoded by single genes, while those for later steps (i.e. GA20ox, GA3ox, and GA2ox) are encoded by gene families. The remaining CPS-like, KS-like, and KO-like genes were likely to be involved in the biosynthesis of diterpene phytoalexins rather than GAs because the expression of two CPS-like and three KS-like genes (OsCPS2, OsCPS4, OsKS4, OsKS7, and OsKS8) were increased by UV irradiation, and four of these genes (OsCPS2, OsCPS4, OsKS4, and OsKS7) were also induced by an elicitor treatment. |
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| 掲載誌 | Plant Physiol. | |
| Country | Japan | |
| 刊数 | 134 | |
| ページ | 1642-1653 | |
| 発刊年 | 2004 | |
| PubMed ID | 15075394 | |
| PubMed Central ID | - | |
| DOI | 10.1104/pp.103.033696 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | CPS1 CPS2 CPS3 CPS4 D18 D35 GA20OX3 GA2OX1 GA2OX2 GA2OX3 GA3OX1 GNP1 KAO KO1 KO3 KO4 KO5 KS1 KS2 KS3 KS4 KS5 KS6 KS7 KS8 KS9 PRL5 SBI SD1 | |
| INSD | - | |
| 系統 |
野生イネ コアコレクション |
- |
| 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) |
- | |
| 栽培イネ品種(遺伝研 Collection) | - | |
| 組織別発生段階 | - | |
