Rapid Biotransformation of Arsenate into Oxo-Arsenosugars by a Freshwater Unicellular Green Alga,<i>Chlamydomonas reinhardtii</i>
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- MIYASHITA Shinichi
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences
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- FUJIWARA Shoko
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences
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- TSUZUKI Mikio
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences
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- KAISE Toshikazu
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences
書誌事項
- タイトル別名
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- Rapid Biotransformation of Arsenate into Oxo-Arsenosugars by a Freshwater Unicellular Green Alga, Chlamydomonas reinhardtii
- Rapid biotransformation of arsenate into oxo- arsenosugars by a freshwater unicellular green alga, Chlamydomonas reinhardtii rapid biotransformation of arsenate into oxo-arsenosugars
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We examined the short-term metabolic processes of arsenate for 24 h in a freshwater unicellular green alga, Chlamydomonas reinhardtii wild-type strain CC-125. The arsenic species in the algal extracts were identified by high-performance liquid chromatography/inductively coupled plasma mass spectrometry after water extraction using a sonicator. Speciation analyses of arsenic showed that the levels of arsenite, arsenate, and methylarsonic acid in the cells rapidly increased for 30 min to 1 h, and those of dimethylarsinic acid and oxo-arsenosugar-glycerol also tended to increase continuously for 24 h, while that of oxo-arsenosugar-phosphate was quite low and fluctuated throughout the experiment. These results indicate that this alga can rapidly biotransform arsenate into oxo-arsenosugar-glycerol for at least 10 min and then oxo-arsenosugar-phosphate through both reduction of incorporated arsenate to arsenite and methylation of arsenite and/or arsenate retained in the cells to dimethylarsinic acid via methylarsonic acid as an possible intermediate.
収録刊行物
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- Ｂｉｏｓｃｉｅｎｃｅ， Ｂｉｏｔｅｃｈｎｏｌｏｇｙ， ａｎｄ Ｂｉｏｃｈｅｍｉｓｔｒｙ
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Ｂｉｏｓｃｉｅｎｃｅ， Ｂｉｏｔｅｃｈｎｏｌｏｇｙ， ａｎｄ Ｂｉｏｃｈｅｍｉｓｔｒｙ 75 (3), 522-530, 2011
公益社団法人 日本農芸化学会
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詳細情報 詳細情報について
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- CRID
- 1390282681453812992
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- NII論文ID
- 10028201798
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- NII書誌ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL書誌ID
- 11051677
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 使用不可