Integrative Biology Journals

Natural Products and Bioprospecting ›› 2011, Vol. 1 ›› Issue (3): 112-115.DOI: 10.1007/s13659-011-0038-0

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Beauvericin production by the Lepidoptera pathogenic fungus Isaria tenuipes:Analysis of natural specimens, synnemata from cultivation, and mycelia from liquid-media fermentation

Sumalee SUPOTHINAa, Urarat SRISANOHa, Sutichai NITHITHANASILPa, Kanoksri TASANATHAIa, J. Jennifer LUANGSA-ARDa, Chun-Ru LIb, Masahiko ISAKAa   

  1. a National Center for Genetic Engineering and Biotechnology(BIOTEC), 113 Thailand Science Park, Phaholyothin Road, Klong Luang, Pathumthani 12120, Thailand;
    b Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, Anhui, China
  • Received:2011-11-24 Revised:2011-11-28 Online:2018-02-11 Published:2011-06-24
  • Supported by:
    Financial support from the National Center for Genetic Engineering and Biotechnology(BIOTEC) is gratefully acknowledged.

Beauvericin production by the Lepidoptera pathogenic fungus Isaria tenuipes:Analysis of natural specimens, synnemata from cultivation, and mycelia from liquid-media fermentation

Sumalee SUPOTHINAa, Urarat SRISANOHa, Sutichai NITHITHANASILPa, Kanoksri TASANATHAIa, J. Jennifer LUANGSA-ARDa, Chun-Ru LIb, Masahiko ISAKAa   

  1. a National Center for Genetic Engineering and Biotechnology(BIOTEC), 113 Thailand Science Park, Phaholyothin Road, Klong Luang, Pathumthani 12120, Thailand;
    b Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, Anhui, China
  • 通讯作者: Masahiko ISAKA,E-mail:isaka@biotec.or.th
  • 基金资助:
    Financial support from the National Center for Genetic Engineering and Biotechnology(BIOTEC) is gratefully acknowledged.

Abstract: Beauvericin was analyzed in three forms of the Lepidoptra pathogenic fungus Isaria tenuipes(4 isolates):(a) natural specimen,(b) cultivated synnemata on rice media, and(c) mycelia from fermentation in liquid media. Beauvericin was detected in very low amounts in all tested natural specimens. Synnemata on rice contained much higher concentrations of beauvericin than the corresponding natural materials, although the concentrations were lower than mycelia from liquid fermentation. The results casted a caution that beauvericin concentration should be carefully checked, as a possible toxic constituent, upon mass production of a selected strain of Isaria tenuipes for health food purposes.

Key words: beauvericin, Isaria tenuipes, chemotaxonomy, toxin

摘要: Beauvericin was analyzed in three forms of the Lepidoptra pathogenic fungus Isaria tenuipes(4 isolates):(a) natural specimen,(b) cultivated synnemata on rice media, and(c) mycelia from fermentation in liquid media. Beauvericin was detected in very low amounts in all tested natural specimens. Synnemata on rice contained much higher concentrations of beauvericin than the corresponding natural materials, although the concentrations were lower than mycelia from liquid fermentation. The results casted a caution that beauvericin concentration should be carefully checked, as a possible toxic constituent, upon mass production of a selected strain of Isaria tenuipes for health food purposes.

关键词: beauvericin, Isaria tenuipes, chemotaxonomy, toxin