Reclassification of Japanese Isolates of Verticillium lecanii to Lecanicillium spp.

  • Koike Masanori
    Department of Agro-Environmental Science, Obihiro University of Agriculture & Veterinary Medicine
  • Sugimoto Midori
    Bio-technical Development Center Pharmaceuticals & Chemicals Div., Mercian Corporation
  • Aiuchi Daigo
    Department of Agro-Environmental Science, Obihiro University of Agriculture & Veterinary Medicine The United Graduate School of Agricultural Science, Iwate University
  • Nagao Hideyuki
    College of Industrial Technology, Nihon University
  • Shinya Ryoji
    Department of Environmental Science and Technology, Kyoto University
  • Tani Masayuki
    Department of Agro-Environmental Science, Obihiro University of Agriculture & Veterinary Medicine
  • Kuramochi Katsuhisa
    Department of Agro-Environmental Science, Obihiro University of Agriculture & Veterinary Medicine

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Other Title
  • 日本産Verticillium lecanii分離株のLecanicillium属菌への再分類
  • ニホンサン Verticillium lecanii ブンリカブ ノ Lecanicilliumゾクキン エノ サイブンルイ

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Abstract

Recently, Verticillium lecanii was transferred and subdivided into mainly Lecanicillium lecanii, L. muscarium, and L. longisporum according to morphological observations and PCR-RFLPs of ITS, mtDNA and β-tubulin. To clarify whether 65 isolates of V. lecanii of mainly Japanese isolates were identified as Lecanicillium spp., conidia size and the formation of secondary phialide formation were investigated under a light microscope, and DNA polymorphism in the β-tubulin gene of V. lecanii was analyzed by PCR-RFLP. These results indicated that the examined isolates belonged to L. muscarium (60 isolates) and L. longisporum (4 isolates), except for one isolate which alone did not belong to both Lecanicillium spp.

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