Complete Genome Sequence of Bacillus cereus Strain PL1, Isolated from Soil in Japan

Bacteriophages are bacterial viruses and the most abundant biological entities on Earth. Temperate bacteriophages can form prophages stably maintained in the host population: they either integrate into the host genome or replicate as plasmids in the host cytoplasm. As shown, tailed temperate bacteriophages may form circular plasmid prophages in many bacterial species of the taxa Firmicutes, Gammaproteobacteria and Spirochaetes. The actual number of such prophages is thought to be underestimated for two main reasons: first, in bacterial whole genome-sequencing assemblies, they are difficult to distinguish from actual plasmids; second, there is an absence of experimental studies which are vital to confirm their existence. In Firmicutes, such prophages appear to be especially numerous. In the present study, we identified 23 genomes from species of the Bacillus cereus group that were deposited in GenBank as plasmids and may belong to plasmid prophages with little or no homology to known viruses. We consider these putative prophages worth experimental assays since it will broaden our knowledge of phage diversity and suggest that more attention be paid to such molecules in all bacterial sequencing projects as this will help in identifying previously unknown phages.

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Complete Genome Sequence of Bacillus cereus Strain PL1, Isolated from Soil in Japan

Abstract: We isolated the soil bacterium strain PL1 and herein report its complete genome sequence. The strain presented 97% average nucleotide identity (ANI) to Bacillus cereus and 91% ANIs to other members of the B. cereus group, indicating that it is affiliated with B. cereus.

Cited by 2 publications

References 13 publications

Bacillus sp. as a microbial cell factory: Advancements and future prospects

Bacillus sp. as a microbial cell factory: Advancements and future prospects

Putative plasmid prophages of Bacillus cereus sensu lato may hold the key to undiscovered phage diversity

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