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Water-stress induced trehalose accumulation and control of trehalase in the cyanobacterium Nostoc punctiforme IAM M-15
http://hdl.handle.net/2297/36906
http://hdl.handle.net/2297/3690651793456-1dc9-470c-b19a-90154c3a2a5d
名前 / ファイル | ライセンス | アクション |
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SC-PR-SAKAMOTO-T-135.pdf (667.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Water-stress induced trehalose accumulation and control of trehalase in the cyanobacterium Nostoc punctiforme IAM M-15 | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Yoshida, Takayuki
× Yoshida, Takayuki× Sakamoto, Toshio |
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書誌情報 |
The Journal of General and Applied Microbiology 巻 55, 号 2, p. 135-145, 発行日 2009-01-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0022-1260 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00698664 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.2323/jgam.55.135 | |||||
出版者 | ||||||
出版者 | 応用微生物学・分子細胞生物学研究奨励会 = The Applied Microbiology, Molecular and Cellular Biosciences Research Foundation | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigated the biochemical properties of the enzymes involved in trehalose metabolism in the cyanobacterium Nostoc punctiforme strain IAM M-15 to elucidate the mechanism of trehalose accumulation in response to desiccation and salt stress. There was no detectable trehalose in fully hydrated N. punctiforme cells; however, these cells accumulated trehalose upon desiccation. Moreover, NaCl treatment also induced trehalose accumulation. The three genes for trehalose metabolism, treZ (maltooligosyltrehalose trehalohydrolase, Mth), treY (maltooligosyltrehalose synthase, Mts), and treH (trehalase), were found as a gene cluster, and the mRNAs for these genes were detectable at similar levels during desiccation. Trehalase of N. punctiforme was heterologously expressed in E. coli cells in an active form with a molecular mass of 52 kDa. Trehalase activity was strongly inhibited in the presence of 10 mM NaCl while trehalose synthesis activity remained active in the presence of salt. These data suggest that the rate of trehalose production exceeds that of trehalose hydrolysis under water-stress conditions characterized by increased cellular solute concentrations. In the proposed mechanism, control of trehalase plays an important role in trehalose accumulation in terrestrial cyanobacteria under conditions of extreme desiccation | |||||
権利 | ||||||
権利情報 | Copyright © 2009 by The Applied Microbiology, Molecular and Cellular Biosciences Research Foundation | |||||
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 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.jstage.jst.go.jp/browse/jgam | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.ammcb.info/ |