Lactobacillus thermotolerans sp. nov., a novel thermotolerant species isolated from chicken faeces

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概要

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• Five strains of thermotolerant lactic acid bacteria (G 12,G22,G35T,G43 andG44) isolated fromchicken faeces were characterized taxonomically. The strains were facultatively anaerobic, Grampositive,catalase-negative, non-motile, non-spore-forming rods. They were heterofermentativelactobacilli that produced DL-lactic acid. Growth of the strains occurred at 45℃ but not at 15℃.The optimum temperature for growth was 42℃, as determined from the specific growth rate. Thehighest permissive temperatures for growth were 50℃ for strainG 35T and 48℃ for the other fourstrains. DNA G+C content of the strains was between 49 and 51 mol%. Complex fatty acidpatterns of the strains showed the presence of C14:0, C16:0, sometimes C18:0, C18:1 andC19:0 cyclo in the cell walls. Phylogenetic analysis of the 16S rRNA gene sequences of the fivestrains placed them in the Lactobacillus casei/Pediococcus group, with Lactobacillus fermentumas their closest relative (about 95% sequence similarity). DNA–DNA hybridization data indicatedthat the thermotolerant strains were not L. fermentum. Taken together, the findings of this studyshow that the five strains isolated from chicken faeces represent a novel species within the genusLactobacillus, for which the name Lactobacillus thermotolerans is proposed (G 35T =DSM14792T =JCM 11425T).

• International Union of Microbiological Societiesの論文

著者

• Sone Teruo

  Laboratory Of Applied Microbiology Graduate School Of Agriculture Hokkaido University

• Sone Teruo

  Laboratory Of Applied Microbiology Research Group Of Molecular Bioscience Division Of Applied Biosci

• Tanaka Michiko

  Laboratory Of Applied Microbiology Graduate School Of Agriculture Hokkaido University

• 冨田 房男

  北海道大学農学部

• 横田 篤

  Laboratory Of Microbial Physiology Research Faculty Of Agriculture Hokkaido University

• Sujaya Inengah

  Northern Advancement Center For Science And Technology

• Sone T

  Laboratory Of Applied Microbiology Graduate School Of Agriculture Hokkaido University

• Sone Teruo

  Laboratory Of Applied Microbiology Department Of Bioscience And Chemistry Faculty Of Agriculture Hok

• Yokota Atsushi

  Lab. Of Microbial Physiology Res. Fac. Of Agriculture Hokkaido Univ. Kita 9 Nishi 9 Kita-ku Sapporo

• 横田 篤

  北大 大学院農学研究院

• Sujaya I-nengah

  Department Of Bioscience And Chemistry Graduate School Of Agriculture Hokkaido University

• Yokota Atsushi

  Laboratory Of Bioorganic Chemistry

• Yokota A

  Laboratory Of Applied Microbiology Department Of Bioscience And Chemistry Faculty Of Agriculture Hok

• Yokota Atsushi

  Hokkaido Univ. Sapporo Jpn

• Asano Kozo

  北海道大学農学部応用生命科学専攻

• Tanaka M

  Laboratory Of Applied Microbiology Graduate School Of Agriculture Hokkaido University

• Tomita Fusao

  Laboratory Of Applied Microbiology

• Tomita Fusao

  Department Of Agricultural Chemistry Faculty Of Agriculture Hokkaido University

• Tomita Fusao

  Laboratory Of Applied Microbiology Department Of Bioscience And Chemistry Faculty Of Agriculture Hok

• Shiomi Takuya

  Fancl Res. Inst. Fancl Corp.

• Takebayashi M

  Laboratory Of Applied Microbiology Graduate School Of Agriculture Hokkaido University

• Yamada Kazutaka

  Kankyo Engineering Corporation

• Tanaka Michiko

  Division Of Applied Bioscience Graduate School Of Agriculture Hokkaido University

• Tanaka Michiko

  Laboratory of Applied Microbiology, Graduate Faculty of Agriculture, Hokkaido University

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