Identification of Lepista sordida LS7 and Antibiotic Activity Analysis of its Fermentation Broth

Abstract:

A strain LS7 was isolated from the Laoshan mountain of Qingdao.According to the morphological,cultural characteristics,and ITS and 5.8s rDNA sequence analysis,the isolate was identified as Lepista sordida.The fermentation broth was extracted by different organic reagents,and their antibiotic activity was also evulated in this study.This strain exhibited the inhibitory action on Gram-positive bacteria,Gram-negative bacteria and fungi,especially for Fusarium oxysporum and Colletotrichum capsicibutl.The results shown here provided the theoretical basis for the application of Lepista sordida in food and medicine industry.