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

Niamsup, Piyanuch; Sujaya, I Nengah; Tanaka, Michiko et al.

International Journal of Systematic and Evolutionary Microbiology, 2003, 53, 263-268

Permalink : https://hdl.handle.net/2115/5423

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アクセス権
open access
URI
https://hdl.handle.net/2115/5423
タイトル
Lactobacillus thermotolerans sp. nov., a novel thermotolerant species isolated from chicken faeces
著者
Niamsup, Piyanuch ; Sujaya, I Nengah ; Tanaka, Michiko ; Sone, Teruo ; Hanada, Satoshi ; Kamagata, Yoichi ; Lumyong, Saisamorn ; Assavanig, Apinya ; Asano, Kozo ; Tomita, Fusao ; Yokota, Atsushi
著者名
Niamsup, Piyanuch
著者名
Sujaya, I Nengah
著者名
Tanaka, Michiko
e-Rad_Researcher
00333633
著者名
Sone, Teruo
著者名
Hanada, Satoshi
著者名
Kamagata, Yoichi
著者名
Lumyong, Saisamorn
著者名
Assavanig, Apinya
著者名
Asano, Kozo
著者名
Tomita, Fusao
e-Rad_Researcher
50220554
著者名
Yokota, Atsushi
横田, 篤
言語
英語
発行日
2003
出版者
International Union of Microbiological Societies
収録物名
International Journal of Systematic and Evolutionary Microbiology
巻(号)
53
ページ
263-268
抄録
Five strains of thermotolerant lactic acid bacteria (G 12,G22,G35T,G43 andG44) isolated from chicken faeces were characterized taxonomically. The strains were facultatively anaerobic, Grampositive, catalase-negative, non-motile, non-spore-forming rods. They were heterofermentative lactobacilli 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. The highest permissive temperatures for growth were 50℃ for strainG 35T and 48℃ for the other four strains. DNA G+C content of the strains was between 49 and 51 mol%. Complex fatty acid patterns of the strains showed the presence of C14:0, C16:0, sometimes C18:0, C18:1 and C19:0 cyclo in the cell walls. Phylogenetic analysis of the 16S rRNA gene sequences of the five strains placed them in the Lactobacillus casei/Pediococcus group, with Lactobacillus fermentum as their closest relative (about 95% sequence similarity). DNA–DNA hybridization data indicated that the thermotolerant strains were not L. fermentum. Taken together, the findings of this study show that the five strains isolated from chicken faeces represent a novel species within the genus Lactobacillus, for which the name Lactobacillus thermotolerans is proposed (G 35T =DSM 14792T =JCM 11425T).
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
1466-5026
関連情報
PMID
12656183
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.1099/ijs.0.02347-0