期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 3, 页码 3575-3577出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.10.028
关键词
Curvularia sp.; Phthalic acid butyl isobutyl ester; Radicinin; Phytotoxic activity; Antifungal activity
资金
- NSFC [21002092]
- Zhejiang Provincial Natural Science Foundation of China [Y2100757]
Two main phytotoxic and antifungal phthalic acid butyl isobutyl ester (1) and radicinin (2) were isolated from the culture of Curvularia sp. FH01, a fungus residing in the Atractomorpha sinensis gut. The structures of isolated metabolites were established on the basis of spectral analysis. Metabolites 1 and 2 exhibited significant phytotoxic activity against the radical growth of Echinochloa crusgalli with their IC(50) values of 61.9 and 5.9 mu g/mL, respectively, which were comparable to that 2,4-dichlorophenoxyacetic acid (2.0 mu g/mL) used as a positive control. The antifungal test results showed that compound 2 possessed strong antifungal activity against Magnaporthe grisea (IC(50) = 16.3 mu g/mL) and Valsa mali (IC(50) = 18.2 mu g/mL). The findings of the present study suggest that bioactive properties of the fungus FH01 can be attributed to its major components, phthalic acid butyl isobutyl ester and radicinin, and both agents have a potential to be used as herbicide and fungicide. (C) 2010 Elsevier Ltd. All rights reserved.
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