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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
Peer-reviewed Journal Articles, etc >
Lactobacillus thermotolerans sp. nov., a novel thermotolerant species isolated from chicken faeces
| Title: | Lactobacillus thermotolerans sp. nov., a novel thermotolerant species isolated from chicken faeces |
| Authors: | Niamsup, Piyanuch Browse this author | | Sujaya, I Nengah Browse this author | | Tanaka, Michiko Browse this author | | Sone, Teruo Browse this author →KAKEN DB | | Hanada, Satoshi Browse this author | | Kamagata, Yoichi Browse this author | | Lumyong, Saisamorn Browse this author | | Assavanig, Apinya Browse this author | | Asano, Kozo Browse this author | | Tomita, Fusao Browse this author | | Yokota, Atsushi11 Browse this author →KAKEN DB |
| Authors(alt): | 横田, 篤11 |
| Issue Date: | 2003 |
| Publisher: | International Union of Microbiological Societies |
| Journal Title: | International Journal of Systematic and Evolutionary Microbiology |
| Volume: | 53 |
| Start Page: | 263 |
| End Page: | 268 |
| Publisher DOI: | 10.1099/ijs.0.02347-0 |
| PMID: | 12656183 |
| Abstract: | 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). |
| Type: | article |
| URI: | http://hdl.handle.net/2115/5423 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 横田 篤
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