Moorella | |
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Genus: | Moorella Collins et al. 1994 non Rao & Rao 1964 [1] |
Type species | |
Moorella thermoacetica (Fontaine et al. 1942) Collins et al. 1994 | |
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Moorella is a genus of bacteria belonging to the phylum Bacillota. [2]
These bacteria are thermophilic, anaerobic and endospore-forming and many species of this genus have been isolated from hot springs. Some of these species were formerly included within the genus Clostridium , but after a taxonomic rearrangement of the class Clostridia, a phylogenetically distinct genus was identified, which was named Moorella in honor of the American microbiologist W.E.C. Moore. [2]
The current phylogeny of these bacteria has been inferred from a computational analysis of 16S ribosomal RNA genes of described species belonging to the Moorella Group (a larger group of bacteria within the family Thermoanaerobacteraceae that also includes other species actually not belonging to genus Moorella). The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) [1] and National Center for Biotechnology Information (NCBI) [3]
16S rRNA based LTP_08_2023 [4] [5] [6] | 120 marker proteins based GTDB 08-RS214. [7] [8] [9] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Ureaplasma is a genus of bacteria belonging to the family Mycoplasmataceae. As the name implies, Ureaplasma is urease positive.
The Clostridia are a highly polyphyletic class of Bacillota, including Clostridium and other similar genera. They are distinguished from the Bacilli by lacking aerobic respiration. They are obligate anaerobes and oxygen is toxic to them. Species of the class Clostridia are often but not always Gram-positive and have the ability to form spores. Studies show they are not a monophyletic group, and their relationships are not entirely certain. Currently, most are placed in a single order called Clostridiales, but this is not a natural group and is likely to be redefined in the future.
Desulfovibrionales are a taxonomic order of bacteria belonging to the phylum Thermodesulfobacteriota, with four families. They are Gram-negative. The majority are sulfate-reducing, with the exception of Lawsonia and Bilophila. All members of this order are obligately anaerobic. Most species are mesophilic, but some are moderate thermophiles.
The Syntrophobacterales are an order of Thermodesulfobacteriota. All genera are strictly anaerobic. Many of the family Syntrophobacteraceae are sulfate-reducing. Some species are motile by using one polar flagellum.
Desulfovibrionaceae is a family of bacteria belonging to the phylum Thermodesulfobacteriota.
The Clostridiaceae are a family of the bacterial class Clostridia, and contain the genus Clostridium.
Entomoplasmatales is a small order of mollicute bacteria.
The Chlamydiaceae are a family of gram-negative bacteria that belongs to the phylum Chlamydiota, order Chlamydiales. Chlamydiaceae species express the family-specific lipopolysaccharide epitope αKdo-(2→8)-αKdo-(2→4)-αKdo. Chlamydiaceae ribosomal RNA genes all have at least 90% DNA sequence identity. Chlamydiaceae species have varying inclusion morphology, varying extrachromosomal plasmid content, and varying sulfadiazine resistance.
Caldicellulosiruptor is a genus of thermophilic, anaerobic, Gram-positive, non-spore forming bacteria. Originally placed within the highly polyphyletic class Clostridia, order Thermoanaerobacterales and family Thermoanaerobacterales Family III according to the NCBI and LPSN, it is now thought to lie outside of the Bacillota. Caldicellulosiruptor is known to degrade and ferment complex carbohydrates from plant matter, such as cellulose and hemicellulose, and certain species in the genus have been identified as potential candidates for biofuel production.
Thermoanaerobacter is a genus in the phylum Bacillota (Bacteria). Members of this genus are thermophilic and anaerobic, several of them were previously described as Clostridium species and members of the now obsolete genera Acetogenium and Thermobacteroides
Dehalogenimonas is a genus in the phylum Chloroflexota (Bacteria). Members of the genus Dehalogenimonas can be referred to as dehalogenimonads.
Pectinatus is a genus of Bacillota bacteria classified within the class Negativicutes.
Sporomusa is a genus of Bacillota bacteria classified within the class Negativicutes.
Megasphaera is a genus of Bacillota bacteria classified within the class Negativicutes.
The Selenomonadales are an order of bacteria within the class Negativicutes; unlike most other members of Bacillota, they are Gram-negative. The phylogeny of this order was initially determined by 16S rRNA comparisons. More recently, molecular markers in the form of conserved signature indels (CSIs) have been found specific for all Selenomonadales species. On the basis of these markers, the Selenomonadales are inclusive of two distinct families, and are no longer the sole order within the Negativicutes. Several CSIs have also been found specific for both families, Sporomusaceae and Selenomonadceae. Samples of bacterial strains within this order have been isolated from the root canals of healthy human teeth.
Pelosinus is a genus of Bacillota bacteria classified within the class Negativicutes.
Mesoplasma is a genus of bacteria belonging to the class Mollicutes. Mesoplasma is related to the genus Mycoplasma but differ in several respects.
Hydrogenobacter is a genus of bacteria, one of the few in the phylum Aquificota. Type species is H. thermophilus. This genus belongs to Bacteria as opposed to the other inhabitants of extreme environments, the Archaea.
Planctopirus is a genus of bacteria from the family of Planctomycetaceae
The Rhodothermales are an order of bacteria.