Cover photograph (Courtesy of Marta Neto, Universidade do Minho, Portugal; reprinted with permission.): Bacillus sp. isolated from an activated sludge sample from a wastewater treatment plant in Portugal.
This month’s cover in the Journal of Bacteriology by the American Society for Microbiology.
Bacillus is a genus of Gram-positive, rod-shaped bacteria and a member of the phylum Firmicutes. Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzymecatalase. Ubiquitous in nature,Bacillus includes both free-living and pathogenic species. Under stressful environmental conditions, the cells produce oval endospores that can stay dormant for extended periods. These characteristics originally defined the genus, but not all such species are closely related, and many have been moved to other genera.