title: [Purification and structural identification of herbicides from Botrytis cinerea].
abstract: 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.
authors.affiliation: Laboratory of Mycotoxin, Agricultural University of Hebei, Baoding 071001, China. zhengmenglx222@163.com
authors.forename: Meng
authors.initials: M
authors.lastname: Zheng
authors.forename: Kuo
authors.initials: K
authors.lastname: Xu
authors.forename: Jingao
authors.initials: J
authors.lastname: Dong
mesh_terms: D020171:Botrytis / Q000737:chemistry*; D006540:Herbicides / Q000737:chemistry* / Q000302:isolation & purification*; D009183:Mycotoxins / Q000737:chemistry* / Q000302:isolation & purification*; D010572:Pest Control, Biological
chemical_list: D006540:Herbicides; D009183:Mycotoxins