Lactobacillus silagincola sp. nov. and Lactobacillus pentosiphilus sp. nov., isolated from silage
Tohno, Masanori and Tanizawa, Yasuhiro and Irisawa, Tomohiro and Masuda, Takaharu and Sakamoto, Mitsuo and Arita, Masanori and Ohkuma, Moriya and Kobayashi, Hisami,, 67, 3639-3644 (2017),
doi = https://doi.org/10.1099/ijsem.0.002196,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= Three Gram-stain positive, non-motile, non-spore-forming, catalase-negative and rod-shaped bacterial strains (IWT5T, IWT25T and IWT140), isolated from silage, were investigated by using a polyphasic taxonomic approach. Strains IWT5T and IWT25T grew at 10–37 °C and 30–37 °C, and at pH 4.0–7.5 and 4.0–7.0, respectively. The G+C contents of genomic DNA of strains IWT5T and IWT25T were 43.2 and 44.4 mol%, respectively. Strains IWT5T and IWT25T contained C16 : 0, C18 : 1 ω9c and summed feature 7 (unknown 18.846/C19 : 1 ω6c/C19  : 0cyclo ω10c) as the major fatty acids. Strain IWT5T was most closely related to the type strains of Lactobacillus mixtipabuli (99.9 % 16S rRNA gene sequence similarity) and Lactobacillus silagei (99.5 %). For IWT25T, the 16S rRNA gene sequence similarities with the closely related neighbour type strains L. mixtipabuli and L. silagei were 99.5 and 99.5 %, respectively. The 16S rRNA gene sequence similarities among the three novel isolates were 99.5–99.9 %. The average nucleotide identities of strains IWT5T and IWT25T to other neighbours of the genus Lactobacillus were less than 82 % and the genomes of IWT25T and IWT140 shared 97.3 % average nucleotide identity, demonstrating that the three strains were allocated to two different novel species of the genus Lactobacillus . Together with multilocus sequence analysis, phenotypic and chemotaxonomic characteristics, strains IWT5T (=JCM 31144T=DSM 102973T) and IWT25T (=JCM 31145T=DSM 102974T) are proposed as the type strains of novel species of the genus Lactobacillus , with the names Lactobacillus silagincola sp. nov. and Lactobacillus pentosiphilus sp. nov., respectively.,
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