期刊
ANNALS OF MICROBIOLOGY
卷 62, 期 1, 页码 149-154出版社
SPRINGER
DOI: 10.1007/s13213-011-0239-0
关键词
Pseudomonas savastanoi pv. savastanoi; Bacillus subtilis; Biocontrol; Olive knot disease
资金
- Institut de l'Olivier
- Centre de Biotechnologie de Sfax, Tunisia
We evaluated the biocontrol efficacy of a Bacillus subtilis strain isolated from symptomless olive leaves against the olive knot disease pathogen Pseudomonas savastanoi pv. savastanoi. Bacillus subtilis F-1 and F-4 displayed antibacterial activity against the pathogen. In planta, only B. subtilis F-1 significantly reduced the weight of knots caused by P. savastanoi pv. savastanoi IVIA 1628 and Aw(9), whereas copper treatment was effective only when using strain Aw(9), thus a reduction of 50% was obtained. Preliminary characterisation of the active compound produced by B. subtilis F-1 showed that it was proteinaceous in nature. These results suggest that B. subtilis strain F-1 could be used to control, and prevent infection by, the causal agent of olive knot disease.
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