title: Stereumin A-E, sesquiterpenoids from the fungus Stereum sp. CCTCC AF 207024.
abstract: Five cadinane sesquiterpenoids, named stereumin A (1), B (2), C (3), D (4) and E (5) were isolated from the CHCl(3) extract of the culture broth of the fungal strain CCTCC AF 207024. Based on the sequences at the internal transcribed spacer (ITS) region and partial 28S rDNA, this fungus was identified as a Stereum sp. The structures of the five compounds were elucidated using spectroscopic data from 1D, 2D NMR and HRESIMS experiments, and the structures of 1 and 2 were further confirmed by single-crystal X-ray diffraction analysis. Compounds 1-5 showed nematicidal activities against the nematode Panagrellus redivivus at 400 mg l(-1). Among these five compounds, compounds 3 and 4 killed 84.4% and 94.9% of P. redivivus, respectively in 48 h.
authors.affiliation: Key Laboratory for Conservation and Utilization of Bio-resource, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, 650091 Yunnan, China.
authors.forename: Guo-Hong
authors.initials: GH
authors.lastname: Li
authors.forename: Meng
authors.initials: M
authors.lastname: Duan
authors.forename: Ze-Fen
authors.initials: ZF
authors.lastname: Yu
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.forename: Jin-Yan
authors.initials: JY
authors.lastname: Dong
authors.forename: Xing-Biao
authors.initials: XB
authors.lastname: Wang
authors.forename: Jian-Wei
authors.initials: JW
authors.lastname: Guo
authors.forename: Rong
authors.initials: R
authors.lastname: Huang
authors.forename: Min
authors.initials: M
authors.lastname: Wang
authors.forename: Ke-Qin
authors.initials: KQ
authors.lastname: Zhang
mesh_terms: D000818:Animals; D000871:Anthelmintics / Q000737:chemistry / Q000494:pharmacology; D001487:Basidiomycota / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009348:Nematoda / Q000187:drug effects; D012717:Sesquiterpenes / Q000737:chemistry* / Q000494:pharmacology
chemical_list: D000871:Anthelmintics; D012717:Sesquiterpenes