title: New nematicidal azaphilones from the aquatic fungus Pseudohalonectria adversaria YMF1.01019.
abstract: Two new azaphilone metabolites, named pseudohalonectrin A (1) and B (2), were isolated from the culture of the aquatic fungus Pseudohalonectria adversaria YMF1.01019, originally separated from submerged wood in Yunnan Province, China. Pseudohalonectrin A and B were assessed for their nematicidal activity against the pine wood nematode Bursaphelenchus xylophilus and their structures were defined after spectral analysis. This is the first report of secondary metabolites from any member of the genus Pseudohalonectria.
authors.affiliation: Key Laboratory for Conservation and Utilization of Bioresources, Yunnan University, Kunming, Yunnan, People's Republic of China.
authors.forename: Jinyan
authors.initials: J
authors.lastname: Dong
authors.forename: Yongping
authors.initials: Y
authors.lastname: Zhou
authors.forename: Ru
authors.initials: R
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Zhou
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Zhu
authors.forename: Rong
authors.initials: R
authors.lastname: Huang
authors.forename: Keqin
authors.initials: K
authors.lastname: Zhang
mesh_terms: D000818:Animals; D000969:Antinematodal Agents / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D001203:Ascomycota / Q000737:chemistry*; D001578:Benzopyrans / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D008968:Molecular Conformation; D017187:Tylenchida / Q000187:drug effects
chemical_list: D000969:Antinematodal Agents; D001578:Benzopyrans; C515722:pseudohalonectrin A; C515723:pseudohalonectrin B