Patent ID: 7855065

Claim:
An isolated or purified Bacillus bacterium comprising: a polynucleotide promoter sequence recognized and transcribed specifically during a sporulation stage, and a polynucleotide that encodes a SigA polypeptide having the amino acid sequence of SEQ ID NO: 1 or a polypeptide that is at least 80% homologous to the amino acid sequence of SEQ ID NO: 1 and which participates in transcription of a gene which is essential for growth during the vegetative growth period of said Bacillus bacterium, wherein the promoter sequence is located between 1 to 198 by upstream of, and operatively-linked to, said polynucleotide encoding sigA; and wherein the promoter sequence is selected from the group consisting of a promoter sequence for expressing sigH gene of Bacillus and a promoter sequence for expressing spoIIA operon of Bacillus.