Luo Wei, Cong-Wen D ing, Shan Zhou
2020
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Journal
Asian Journal of Chemistry
Abstract
In order to screen, identify high active compound and investigate its controlling effect on anthracnose disease in postharvest mangos, the bioassay-guided fractionation was used to screen and isolate antifungal components from fermented broth of Bacillus megaterium LB01-16 and the inhibition zone diameter of active components isolated against Colletotrichum gloeosporioides were measured with a disk diffusion test. The results revealed that four monomer compounds were separated from the fermentation broth, and only one monomer with strong antifungal activity, numbered 007, was obtained and identified as glucopyranosyl 12-hydroxyjasmonic acid by 1H & 13C NMR and by comparing with literature. This study confirmed that the glucopyranosyl 12-hydroxyjasmonic acid produced from Bacillus megaterium LB01-16 can inhibit the anthracnose disease of postharvest mangos by directly reducing mycelium growth and inhibiting the spore germination of Colletotrichum gloeosporioides, thus providing a promising strategy for controlling of anthracnose disease in postharvest mangos.