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Structural and functional analysis of a novel arsenic compound produced by a bacterium isolated from the rice root
http://hdl.handle.net/10458/6891
http://hdl.handle.net/10458/68916563778d-7dfc-439f-99e4-3d567d32f71e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (1.4 MB)
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| Item type | その他 / Others(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-06-22 | |||||
| タイトル | ||||||
| タイトル | Structural and functional analysis of a novel arsenic compound produced by a bacterium isolated from the rice root | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Arsenic, metabolism, rhizosphere | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
| 資源タイプ | other | |||||
| 著者 |
Kuramata, Masato
× Kuramata, Masato× Ishikawa, Satoru |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The origin of methylated As in rice grains has been clarified in resent studies. Some soil bacteria which have As methyltransferase gene, ArsM, involve in As methylation in the rice rhizosphere, and the plant just uptakes methylated As. In our study, we isolated two types of bacteria, the one produces methylated As form iAs and the other a novel organoarsenic compound （named as `AST'）. AST is not detected in rice grain but it is interesting As chemical form which may indicate a complex metabolism in the rhizosphere. Here we characterized the chemical structure and effects of AST to rice plants or other bacteria. AST purified from the As containing culture of Burkholderia gladioli strain GSRB05 was determined as 2-amino-4-hydroxymethylarsinoyl）butanoic acid by MS and NMR experiments. From the result, it was appeared that AST is an amino acid derivative similar to the structure of glufosinate which is well-known as herbicide. A little amount of AST was absorbed by rice plants in uptake experiments, but E. coli cells in a minimal medium which lacks amino acids absorbed AST more than As（III） and the growth was worse. AST may function as an anti-bacterial metabolite. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : 5th International Arsenic Symposium in MIYAZAKI 2018 p. 50-53, 発行日 2018-06 |
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| 出版者 | ||||||
| 出版者 | University of Miyazaki, IRISH | |||||
| 言語 | en | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
