Reidentification of the keratinase-producing facultatively alkaliphilic Bacillus sp. AH-101 as Bacillus halodurans
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Alkaliphilic Bacillus sp. AH-101 was characterized in terms of physiological and biochemical characteristics, and 16S rDNA sequence homology and DNA–DNA hybridization analyses were performed. Phylogenetic analysis of strain AH-101 based on comparison of 16S rDNA sequences revealed that this strain is closely related to Bacillus halodurans. DNA–DNA hybridization of AH-101 and related Bacillus reference strains showed that the highest level of DNA–DNA relatedness (88%) was found between strain AH-101 and the B. halodurans type strain (DSM497). Our findings demonstrate that strain AH-101 is a member of the species B. halodurans.
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