[Purification and structural identification of herbicides from Botrytis cinerea].
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.


CONCLUSIONS
The findings are important for future preparation and application of the herbicide.
Zheng
Meng
M
Laboratory of Mycotoxin, Agricultural University of Hebei, Baoding 071001, China. zhengmenglx222@163.com
Xu
Kuo
K
Dong
Jingao
J
D020171:Botrytis / Q000737:chemistry*; D006540:Herbicides / Q000737:chemistry* / Q000302:isolation & purification*; D009183:Mycotoxins / Q000737:chemistry* / Q000302:isolation & purification*; D010572:Pest Control, Biological
D006540:Herbicides; D009183:Mycotoxins