期刊
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
卷 17, 期 7, 页码 691-696出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1012927116756
关键词
Alcaligenes xylosoxydans; biocontrol; Cajanus cajan; chitinase production and optimization; Fusarium sp.; Rhizoctonia bataticola
A novel, highly chitinolytic strain of Alcaligenes xylosoxydans was isolated which showed potential for use as an antifungal biocontrol agent for the control of two fungal plant pathogens. It could degrade and utilize dead mycelia of Rhizoctonia bataticola and Fusarium sp. (fungal plant pathogens of Cajanus cajan). In vitro it could inhibit the growth of Fusarium sp. and R. bataticola. Chitin at 10-15 g/l was found to be good carbon and nitrogen source. Alcaligenes xylosoxydans showed optimum chitinase production at 72 h, pH optima at 8 and growth peak at 120 h. Yeast extract, arabinose, Tween 20 and several other surfactants enhanced chitinase production.
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