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Priestia megaterium [1] (Bacillus megaterium prior to 2020) [2] is a rod-like, Gram-positive, mainly aerobic, spore forming bacterium found in widely diverse habitats. [3] [4] It has a cell length up to 100 μm and a diameter of 0.1 μm, which is quite large for bacteria. [5]
Priestia, as of May 2021, contains 10 species with validly published names. [3] This genus was identified as a monophyletic clade and phylogenetically unrelated to other Bacillus species in studies examining the taxonomic relationships within Bacillus. [1] This branching pattern is also observed in the Genome Taxonomy Database. [10]
Bacillus (Latin "stick") is a genus of Gram-positive, rod-shaped bacteria, a member of the phylum Bacillota, with 266 named species.The term is also used to describe the shape (rod) of other so-shaped bacteria; and the plural Bacilli is the name of the class of bacteria to which this genus belongs.
The Bacillaceae are a family of gram-positive, heterotrophic, rod-shaped bacteria that may produce endospores. [1] 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 ...
A bacillus (pl.: bacilli), also called a bacilliform bacterium or often just a rod (when the context makes the sense clear), is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria. However, the name Bacillus, capitalized and italicized, refers to a specific genus of
However, some gram-positive bacteria may also have a capsule: Bacillus megaterium for example, synthesizes a capsule composed of polypeptide and polysaccharides. Bacillus anthracis; Streptococcus pyogenes synthesizes a hyaluronic acid capsule. Streptococcus pneumoniae [20] has at least 91 different capsular serotypes. [21]
Most types of bacteria cannot change to the endospore form. Examples of bacterial species that can form endospores include Bacillus cereus, Bacillus anthracis, Bacillus thuringiensis, Clostridium botulinum, and Clostridium tetani. [6] Endospore formation is not found among Archaea. [7]
Fruiting gliding bacteria Hydrobacteria "Deferrisomatota" Desulfobacterota C Hydrobacteria "Deferrimicrobiota" Begmatov et al. 2022 Desulfobacterota E "Tharpellota" Hydrobacteria "Moduliflexota" corrig. Sekiguchi et al. 2015 KSB3 Hydrobacteria "Methylomirabilota" Viljakainen & Hug 2021ex Chuvochina et al. 2023 NC10 "Rokubacteria" (CSP1-6 ...