Chitinase Inhibitor Allosamidin Is a Signal Molecule for Chitinase Production in Its Producing Streptomyces
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چکیده
منابع مشابه
Chitinase Production by Streptomyces sp. ANU 6277
Chitinase production by a terrestrial Streptomyces sp. ANU 6277 was studied under sub-merged fermentation. Chitinase production started after 24 h of incubation and reached maximum levels after 60 h of cultivation. A high level of chitinase activity was observed in the culture medium with pH 6 at 35°C. Culture medium amended with 1% chitin was found to be suitable for maximum production of chit...
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The expression levels of three chitinase genes in Arabidopsis thaliana, AtChiA (class III), AtChiB (class I), and AtChiV (class IV), were examined under various stress conditions by semi-quantitative RT-PCR. Under normal growth conditions, the AtChiB and AtChiV genes were expressed in most organs of Arabidopsis plants at all growth stages, whereas the AtChiA gene was not expressed at all. The c...
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Streptomyces sp. SJKP9 was isolated from the shore soil sample of Dhanushkodi, TN and evaluated for chitinase production. Maximum chitinase production was observed on day 8 of incubation while, pH 6 and temperature 30°C were found to be optimum. Culture medium with colloidal chitin was found to be suitable for chitinase production. Sucrose and yeast extract, when used as additional carbon and n...
متن کاملNucleotide sequences of genes encoding allosamidin-sensitive and -insensitive chitinases produced by allosamidin-producing Streptomyces.
Allosamidin is a strong inhibitor of family 18 chitinases. We previously reported the presence of allosamidin-sensitive and -insensitive chitinases (chitinase S and IS) in the culture filtrate of the allosamidin-producing strain, Streptomyces sp. AJ9463. In this study, we cloned and sequenced the genes encoding the two chitinases, which clarified that chitinase S and IS belong to the family 18 ...
متن کاملglkA is involved in glucose repression of chitinase production in Streptomyces lividans.
Chitinase production in Streptomyces lividans is induced by chitin and repressed in the presence of glucose. A mutant of S. lividans TK24, strain G015, which was defective in glucose repression of chitinase production, was obtained by screening colonies for zones of clearing on colloidal chitin agar plates containing 1.0% (wt/vol) glucose. The transcriptional analysis of chiA in G015 with xylE,...
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ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 2006
ISSN: 0021-8820,1881-1469
DOI: 10.1038/ja.2006.58