Antimicrobial Activity of Submerged Culture Extracts From Xylaria striata

• Published in: Plant Diseases and Pests(植物病虫害研究：英文版) Vol. 5; no. 5; pp. 11 - 14
• Main Authors: Xia, Liu, Xiaolan, Jiang, Chao, Ma, Xiaohong, Yuan, Xinsheng, He, Lin, Ma
• Format: Journal Article
• Language: English
• Published: Cranston Wu Chu (USA-China) Science and Culture Media Corporation 01.10.2014
• Subjects: Enterobacter cloacae; Fusarium graminearum; 发酵提取物; 小麦赤霉病菌; 抑菌圈直径; 抗真菌活性; 抗菌活性; 活性炭; 生长速率法; 菌丝体提取物
• ISSN: 2152-3932

[ Objective ] The paper was to explore the antimicmbial activities of extracts from Xylaria striata via submerged culture. [ Methods ] The antibacterial activities of X. striata extracts against 10 kinds of bacteria were determined using Oxford cup method and mJcroplate assay, and the antifungal activities against nine kinds of pathogenic fungi were determined using mycelial growth rate method. [ Results ] The inhibition zone diameters of the mycelium extract against tested bacte- ria ranged from 13.0 to 17.5 mm, and that of the fermentation broth extract ranged from 10.5 to 12.7 ram. Enterobacter cloacae was the most sensitive to both my- celium extract and fermentation broth extract, with the inhibition zone diameters of 17.1 and 12.7 mm and the minimum inhibitory concentrations of 2.5 and 5 mg/mL, respectively. The inhibitory effects of the mycelium extract and the fermentation broth extract against Fusarium graminearum were the greatest, and the in- hibition rates were 89.88% and 69.53%, respectively. [ Conclusion] X. striata has potential antimicrobial activity and deserves to be further studied.