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Bacillus thuringiensis var. aizawai HD-137 as a Potential Agent for Biological Control
ISSN: 0976 - 7614
Publisher: author
Bacillus thuringiensis var. aizawai HD-137 as a Potential Agent for Biological Control
Indexed in
Biology and Life Sciences
ARTICLE-FACTOR
1.3
Article Basics Score: 3
Article Transparency Score: 3
Article Operation Score: 2
Article Articles Score: 2
Article Accessibility Score: 2
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International Category Code (ICC):
ICC-0402
Publisher: Journal Of Advanced Laboratory Research In Biology Society..
International Journal Address (IAA):
IAA.ZONE/097652057614
eISSN
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0976 - 7614
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Abstract
Four strains of Bacillus thuringiensis were screened for their chitinolytic activity on colloidal chitin. B. thuringiensis var. aizawai HD-137 with the GenBank accession number HM173355 showed the highest chitinase activity, which was recorded after 2 days of incubation. The optimum condition for high chitinase production was Nutrient Yeast extract, Salt Medium, NYSM, with 0.2% colloidal chitin, two days of incubation, pH 6 and 30°C. The novel strain B. thuringiensis var. aizawai HD-137 is also considered as a powerful phytopathogenic control agent in which it showed inhibition of the mycelial growth of some phytopathogenic fungi, Alternaria solani, Rhizopus B1 and B2, Fusarium solani and Aspergillus flavus. The clear zones of mycelial inhibition ranged from 12 to 19mm. The partial nucleotides sequence of chitinase gene from B. thuringiensis var. aizawai HD-137 showed similarities to the chitinase producing bacteria in the GenBank, a...
