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タイトル: Allosamidin, a chitinase inhibitor produced by Streptomyces, acts as an inducer of chitinase production in its producing strain
著者: Nakanishi, Eiyu
Okamoto, Susumu
Matsuura, Hiroshi
Nagasawa, Hiromichi
Sakuda, Shohei
著者(別言語): 長澤, 寛道
キーワード: Allosamidin
chitinase
Streptomyces
secondary metabolite
発行日: 2001年
出版者: Japan Academy
掲載誌情報: Proceedings of the Japan Academy. Ser. B, 77(5), 2001, pp. 79-82
抄録: Allosamidin is a chitinase inhibitor produced by Streptomyces. Allosamidin-producing Streptomyces is frequently found in soil. Allosamidin is a hydrophilic compound, but is found only in mycelia of its producer, and exogenous allosamidin is adsorbed on mycelia of its producing strain. We found that exogenous addition of allosamidin to a culture medium with colloidal chitin as a sole carbon source can strongly accelerate the chitinase production by an allosamidin-producing Streptomyces at low concentrations such as 1 μM. On the other hand, allosamidin depressed the chitinase activity in the culture of Streptomyces lividans, an allosamidin-nonproducing microbe. These results suggest that allosamidin has a physiological role in its producer as an inducer of chitinase production, which may be useful for chitin utilization by the producer in chitin-rich environment such as in soil.
URI: http://hdl.handle.net/2261/7403
ISSN: 03862208
出現カテゴリ:1160410 学術雑誌論文
014 自然科学

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