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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 58, Issue 1

sp. nov., a moderately halophilic, non-motile obligate alkaliphile isolated from indigo balls Free

Abstract

A moderately halophilic, obligate alkaliphile (growth range pH 8–12), designated strain YN-1, was isolated from indigo balls obtained from Ibaraki, Japan. The cells of the isolate stained Gram-positive, and were aerobic, non-motile, sporulating rods which grew optimally at pH 9. The strain grew in 3–14 % NaCl with optimum growth in 5 % NaCl. It hydrolysed casein and Tweens 20, 40 and 60, but not gelatin, starch, DNA or pullulan. Its major isoprenoid quinone was MK-7 and its cellular fatty acid profile mainly consisted of anteiso-C, anteiso-C and anteiso-C. 16S rRNA phylogeny suggested that strain YN-1 was a member of group 7 (alkaliphiles) of the genus , with the closest relative being DSM 8720 (similarity 99.5 %). However, DNA–DNA hybridization showed a low DNA–DNA relatedness (7 %) of strain YN-1 with . DSM 8720. Owing to the significant differences in phenotypic and chemotaxonomic characteristics, and phylogenetic and DNA–DNA relatedness data, the isolate merits classification as a new species, for which the name is proposed. The type strain of this species is YN-1 (=JCM 14604=NCIMB 14282).

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2008-01-01
2025-12-14

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Bacillus polygoni sp. nov., a moderately halophilic, non-motile obligate alkaliphile isolated from indigo balls
Int J Syst Evol Microbiol 58, 120 (2008); https://doi.org/10.1099/ijs.0.65193-0
/content/journal/ijsem/10.1099/ijs.0.65193-0
/content/journal/ijsem/10.1099/ijs.0.65193-0
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Maximum-parsimony phylogenetic tree constructed on the basis of 16S rRNA gene sequence data of strain YN-1 and other related organisms. Bootstrap percentages (based on 1000 replicates) are shown at branch points. Bar, 10 changes per nucleotide position.

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Minimum-evolution phylogenetic tree constructed on the basis of 16S rRNA gene sequence data of strain YN-1 and other related organisms. Bootstrap percentages (based on 1000 replicates) are shown at branch points. Bar, 0.01 changes per nucleotide position.

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