Species associations and distributions of soil entomopathogenic fungi Metarhizium spp. in Japan

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Abstract

Metarhizium Sorokīn (Hypocreales: Clavicipitaceae) is a genus of facultative parasites of insects found in soils from various environments and is used for pest management. Understanding the habitat selection of Metarhizium spp. is critical to improve the efficacy and persistence of these fungi as microbial insecticides. This study sought to determine the habitat preferences of Metarhizium spp. in Japan. We identified 302 isolates of Metarhizium spp. as eight species by a combination of PCR–RFLP and phylogenetic analysis of DNA sequences. M. pingshaense was the predominant species in Japan and was most frequently isolated from both forest and agricultural environments. On the other hand, M. brunneum and M. pemphigi were comparatively restricted to forest environments. A similar species association was detected in a small area that was intensively investigated, where 7 species including 14 genotypes were isolated from soil. The results of this study have revealed different habitat preferences among Metarhizium spp. in Japan.

Original languageEnglish
Pages (from-to)308-317
Number of pages10
JournalMycology
Volume8
Issue number4
DOIs
Publication statusPublished - Oct 2 2017

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All Science Journal Classification (ASJC) codes

  • Microbiology
  • Infectious Diseases

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