The organism was further identified by 16S rRNA gene sequencing having a length of 1449 bp nucleotides. Phylogenetic analysis of its 16S rRNA gene sequence revealed that NPST-AK15 is affiliated with the genus Bacillus and closely related to several alkaliphilic Bacillus sp. with 99% similarity (Fig. 3). This sequence was deposited in Gen Bank with accession number KP295749,and the isolate was tentatively named as Bacillus sp. Strain NPST-AK15.