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[Purification and structural identification of herbicides from Botrytis cinerea]
Meng Zheng1, Kuo Xu, Jingao Dong
1Laboratory of Mycotoxin, Agricultural University of Hebei, Baoding 071001, China. zhengmenglx222@163.com
Objective:
Toxin produced by phytopathogenic fungi is one of the important microbial herbicides. We found a new compound with herbicidal activity.
Methods:
Five different ultraviolet absorption components were isolated from the filtrate of Botrytis cinerea isolate 7-3 culture.
Results:
Of the five components, one showed strong inhibitory to Digitaria sanguinalis. The pure fraction with high herbicidal activity was obtained by HPLC purification. Its structure was identified as 10-syn-dihydrobotrydial by Ultraviolet and Visible Spectroscopy, Infrared Spectrum, Nuclear Magnetic Resonance Spectroscopy analysis.
Conclusion:
The findings are important for future preparation and application of the herbicide.
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