I. Yumoto et al., BACILLUS HORTI SP. NOV., A NEW GRAM-NEGATIVE ALKALIPHILIC BACILLUS, International journal of systematic bacteriology, 48, 1998, pp. 565-571
Novel Cram-negative alkaliphilic strains were isolated from soil obtai
ned from Atsuma, Hokkaido, Japan. The isolates were strictly aerobic r
ods that produced subterminally located ellipsoidal spores. Chemotaxon
omic characteristics of the isolates included the presence of meso-dia
minopimelic acid in the cell wall and a DNA G+C content of 40.2-40.9 m
ol%. The major isoprenoid quinone was menaquinone-7 and the cellular f
atty acid profile consisted of a significant amount of 15.C branched-c
hain acids, iso-C-15:0 and anteiso-C-15:0. The growth rate was higher
at ph 8-10 than at ph 7. Comparative sequence analysis of 16S rDNA of
14 alkaliphilic Bacillus strains indicates that the isolated strain ha
s an equidistant relationship to three already defined rRNA groups of
alkaliphilic Bacillus species. Based on the morphological and physiolo
gical characteristics, as well as phylogenetic position as determined
by 16S rDNA analysis and DNA-DNA relatedness data, it is concluded tha
t these isolates should be designated as a new species, for which the
name Bacillus horti is proposed. The type strain is K13(T)(= JCM 9943(
T)).