Bacillus species (Bacillus spp.)

Bacillus species refers to a diverse genus of Gram-positive, rod-shaped, endospore-forming bacteria within the phylum Bacillota [4]. While many members of this genus are harmless saprophytes or used in industrial biotechnology, certain species are significant human pathogens, most notably Bacillus anthracis, the causative agent of anthrax, and Bacillus cereus, which is frequently associated with foodborne illness and severe opportunistic infections [1][2]. From a drug development perspective, 'Bacillus species' is not a single molecular target (such as a specific receptor or enzyme) but is a biological entity containing numerous internal molecular targets, including the bacterial ribosome, DNA gyrase, and cell wall synthesis machinery [3]. Antibiotics like ciprofloxacin, doxycycline, and vancomycin are utilized to disrupt these essential bacterial processes and treat infections caused by pathogenic species [1][3]. A hallmark of the genus is the ability to form highly resilient spores that persist in harsh conditions, presenting significant challenges for both clinical treatment and environmental decontamination [4].

Other names

BacillusBacillus genusBacillus spp.Gram-positive bacilli

Inhibition of DNA gyrase and topoisomerase IV (fluoroquinolones); Inhibition of 30S or 50S ribosomal subunits (tetracyclines, lincosamides); Inhibition of cell wall peptidoglycan synthesis (glycopeptides, beta-lactams) [1][2][3].