Bacillaceae

Bacillaceae
Bacillus subtilis, Gram stained
Scientific classification
Domain:	Bacteria
Phylum:	Bacillota
Class:	Bacilli
Order:	Caryophanales
Family:	Bacillaceae Garrity et al. 2001
Genera
Aeribacillus Alkalibacillus Allobacillus Alteribacillus Amphibacillus Amylobacillus Anaerobacillus Anoxybacillus Aquibacillus Aquisalibacillus Bacillus Caldalkalibacillus Caldibacillus Calditerricola Cerasibacillus Compostibacillus Domibacillus Edaphobacillus Falsibacillus Fermentibacillus Fictibacillus Filobacillus Geobacillus Gracilibacillus Halalkalibacillus Halobacillus Halolactibacillus Hydrogenibacillus Lentibacillus Lysinibacillus Marinococcus Melghiribacillus Microaerobacter Natribacillus Natronobacillus Oceanobacillus Ornithinibacillus Paraliobacillus Paucisalibacillus Pelagirhabdus Piscibacillus Polygonibacillus Pontibacillus Pseudogracilibacillus Psychrobacillus Saccharococcus Salibacterium Salimicrobium Salinibacillus Salipaludibacillus Salirhabdus Salisediminibacterium Saliterribacillus Salsuginibacillus Sediminibacillus Sinibacillus Streptohalobacillus Tenuibacillus Tepidibacillus Terribacillus Terrilactibacillus Texcoconibacillus Thalassobacillus Thermolongibacillus Virgibacillus Vulcanibacillus

The Bacillaceae are a family of Gram-positive, heterotrophic, rod-shaped bacteria that may produce endospores. Motile members of this family are characterized by peritrichous flagella. Some Bacillaceae are aerobic, while others are facultative or strict anaerobes. Most are not pathogenic, but Bacillus species are known to cause disease in humans.

Gram-variable cell wall

Some Bacillaceae, such as the genera Filobacillus, Lentibacillus, and Halobacillus, stain Gram-negative or Gram-variable, but are known to have a Gram-positive cell wall.

Nomenclature

Genera within this family are sometimes colloquially identified as bacilli. However, this term is a misnomer because it does not distinguish between class Bacilli, order Bacillales, family Bacillaceae, and genus Bacillus.