期刊
BIOCONTROL SCIENCE
卷 26, 期 2, 页码 67-74出版社
SOC ANTIBACTERIAL & ANTIFUNGAL AGENTS, JAPAN
关键词
Alternaria rot; antifungal; bacterial metabolite; biocontrol; postharvest
The study showed that metabolites produced by B. atrophaeus B5 and B. frigoritolerans B7 have antifungal activity against Alternaria alternata, reducing the severity of fungal decay on tomato fruit. This suggests a new approach to control fungal diseases during the postharvest stage and reduce the use of chemical pesticides.
In the present study, the antifungal activity of metabolites produced by Bacillus atrophaeus B5 and a new Brevibacterium strain against Alternaria alternata was evaluated. Assays in vitro and in vivo on tomato fruit during postharvest were made. Based on the 16S rDNA gene sequence analysis, the new strain (strain B7) was identified as Brevibacterium frigoritolerans. Metabolites produced by both bacterial strains reduced the spore germination of A. altemata in vitro and decreased the severity of the altemaria rot disease on tomato fruit during postharvest. This is the first report that demonstrates the potential of B. frigoritolerans B7 as a biocontrol agent against this fungal phytopathogen. The use of metabolites produced by B. atrophaeus B5 and B. frigoritolerans B7 represents a new approach to reduce the use of chemical pesticides and control fungal decay during the postharvest stage.
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