期刊
MYCOLOGICAL RESEARCH
卷 113, 期 -, 页码 1389-1395出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mycres.2009.08.017
关键词
Beauvericin; Chemotaxonomy; Entomogenous fungi; Isaria
类别
资金
- Bioresources Research Network (BRN)
- Kanyawim Kirtikara
- Morakot Tanticharoen
Beauvericin is a naturally occurring cyclohexadepsipeptide originally described from Beauveria bassiana but also reported from several Fusarium species as well as members of the genus Isaria. Twenty-six isolates of Isaria species and its Cordyceps teleomorph, and ten taxonomically close strains including Beauveria, Nomuraea and Paecilomyces species were sequenced and tested for beauvericin production. Trees using ITS rDNA and beta-tubulin sequence data were constructed and used to infer the phylogenetic distribution of beauvericin production. A group comprising Isaria tenuipes and its known teleomorph Cordyceps takaomontana, Isaria cicadae and its Cordyceps teleomorph, Isaria japonica and Isaria fumosorosea, showed positive beauvericin production which correlated well with combined ITS rDNA and beta-tubulin phylogenies. The results suggested that beauvericin can serve as a chemotaxonomic marker for these limited species of the I. tenuipes complex. (C) 2009 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.
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