Abstract:

The aim was to study the inhibitory effect of Aschersonia Jos009 exreacellular metabolites on Aspergillus flavus sp. Jos009 was identified with morphologic data, including the morphological characteristics of stromata, the size of conidia and the length of paraphyses. The extracellular metabolites of the fungus were extracted. The inhibition of Jos009 extracellular metabolites on Aspergillus flavus sp. were determined by filter paper diffusion method. Aschersonia Jos009 was collected from Jian’ou of Fujian Province, China. Through observation of morphology and data analysis of conidia and paraphyses, it was identified as Aschersonia placeta Berk.et Br.. The result showed that the extracellular metabolites exhibited strong inhibition towards Aspergillus flavus sp.. The inhibition zone was 17 mm. This strain had application potential on controlling Aspergillus flavus. If the bioactive compounds could be isolated from the strain in the future, it would be a drug candidate to control the pollution of A. flavus and might protect people's living conditions.