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- 岡田 憲典
- 東京大学生物生産工学研究センター
書誌事項
- タイトル別名
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- Studies on regulation mechanism of diterpenoid phytoalexin biosynthesis and its evolutional aspects
- 学会賞 ジテルペン型フィトアレキシン生合成の制御機構と進化に関する研究
- ガッカイショウ ジテルペンガタ フィトアレキシン セイゴウセイ ノ セイギョ キコウ ト シンカ ニ カンスル ケンキュウ
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説明
<p>Cultivated rice (Oryza sativa) produces many types of diterpene phytoalexins, such as momilactones and phytocassanes as antimicrobial substances. It is known that the biosynthetic genes are clustered on rice chromosomes and co-expressed in response to environmental stimuli. We demonstrated that expressions of the clustered genes and the upstream MEP pathway genes are coordinately regulated by transcription factors inductively expressed under stress conditions. Comparative genomics and biochemical studies using wild rice species not only have shown when and how rice plants acquired the ability to co-ordinately produce phytoalexins, but also how evolutionary events led to the clustering of the biosynthetic genes. Interestingly, bryophyte moss and paddy weeds barnyardgrass were also shown to inductively produce momilactones upon environmental stresses and that they possess the gene cluster. The results imply that a chemical defense system using momilactones appears to be maintained in diverse plant species as a consequence of convergent evolution. </p>
収録刊行物
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- 植物の生長調節
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植物の生長調節 53 (1), 18-26, 2018
一般社団法人 植物化学調節学会
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詳細情報 詳細情報について
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- CRID
- 1390001288038895104
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- NII論文ID
- 130007410031
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- NII書誌ID
- AA11550064
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- ISSN
- 21896305
- 13465406
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- NDL書誌ID
- 029104901
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可