title: Alicyclobacillus sendaiensis sp. nov., a novel acidophilic, slightly thermophilic species isolated from soil in Sendai, Japan.
abstract: An acidophilic, slightly thermophilic bacterium, designated strain NTAP-1T, that produces a thermostable extracellular acid collagenase activity with potential industrial applications was isolated from soil of Aoba-yama Park, Sendai, Japan. The temperature range for growth was 40-65 degrees C, with an optimum at 55 degrees C, and the pH range for growth was 2.5-6.5, with an optimum at pH 5.5. Analysis of the 16S rDNA sequence of strain NTAP-1T showed that it is most closely related to strains of the genus Alicyclobacillus. Consistently, the major constituents of the cell-membrane lipid of strain NTAP-1T were omega-alicyclic fatty acids. However, DNA-DNA reassociation studies showed only low similarities (less than 33%) to any type strain of Alicyclobacillus. On the basis of the phenotypic and genotypic properties, a novel species is proposed, Alicyclobacillus sendaiensis sp. nov., represented by strain NTAP-1T (=JCM 11817T=ATCC BAA-609T).
authors.affiliation: Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai, Miyagi 980-8579, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Tsuruoka
authors.affiliation: Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai, Miyagi 980-8579, Japan.
authors.forename: Yuri
authors.initials: Y
authors.lastname: Isono
authors.affiliation: Research Laboratory, Higeta Shoyu Co. Ltd, Choshi, Chiba 288, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Shida
authors.affiliation: Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai, Miyagi 980-8579, Japan.
authors.forename: Hisashi
authors.initials: H
authors.lastname: Hemmi
authors.affiliation: Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai, Miyagi 980-8579, Japan.
authors.forename: Toru
authors.initials: T
authors.lastname: Nakayama
authors.affiliation: Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai, Miyagi 980-8579, Japan.
authors.forename: Tokuzo
authors.initials: T
authors.lastname: Nishino
mesh_terms: D001407:Bacillus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D017364:Collagenases / Q000378:metabolism; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D005227:Fatty Acids / Q000378:metabolism; D005838:Genotype; D016937:Gram-Positive Endospore-Forming Rods / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D007564:Japan; D008969:Molecular Sequence Data; D010641:Phenotype; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012988:Soil Microbiology; D013696:Temperature
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D017364:Collagenases