| Holophagaceae | |
|---|---|
Scientific classification  | |
| Domain: | Bacteria |
| Phylum: | Acidobacteriota |
| Class: | Holophagae |
| Order: | Holophagales Fukunaga et al. 2008 [1] |
| Family: | Holophagaceae Fukunaga et al. 2008 [1] |
| Genera | |
| |
The class Holophagaceae is a family of strictly anaerobic Gram negative marine bacteria in the phylum Acidobacteriota . [1] [2]
Acidobacteriota is a phylum of Gram-negative bacteria. Its members are physiologically diverse and ubiquitous, especially in soils, but are under-represented in culture.
The Chlamydiota are a bacterial phylum and class whose members are remarkably diverse, including pathogens of humans and animals, symbionts of ubiquitous protozoa, and marine sediment forms not yet well understood. All of the Chlamydiota that humans have known about for many decades are obligate intracellular bacteria; in 2020 many additional Chlamydiota were discovered in ocean-floor environments, and it is not yet known whether they all have hosts. Historically it was believed that all Chlamydiota had a peptidoglycan-free cell wall, but studies in the 2010s demonstrated a detectable presence of peptidoglycan, as well as other important proteins.
The Thermotogota are a phylum of the domain Bacteria. The phylum Thermotogota is composed of Gram-negative staining, anaerobic, and mostly thermophilic and hyperthermophilic bacteria.
Caldisericum exile is a species of bacteria sufficiently distinct from other bacteria to be placed in its own family, order, class and phylum. It is the first member of the thermophilic candidate phylum OP5 to be cultured and described.
The Negativicutes are a class of bacteria in the phylum Bacillota, whose members have a peculiar cell wall with a lipopolysaccharide outer membrane which stains gram-negative, unlike most other members of the Bacillota. Although several neighbouring Clostridia species also stain gram-negative, the proteins responsible for the unusual diderm structure of the Negativicutes may have actually been laterally acquired from Pseudomonadota. Additional research is required to confirm the origin of the diderm cell envelope in the Negativicutes.
Dehalococcoidia is a class of Chloroflexota, a phylum of Bacteria. It is also known as the DHC group.
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.
Phycisphaerae is a class of aquatic bacteria. They reproduce by budding and are found in samples of algae in marine water. Organisms in this group are spherical and have a holdfast, at the tip of a thin cylindrical extension from the cell body called the stalk, at the nonreproductive end that helps them to attach to each other during budding.
The Coriobacteriia are a class of Gram-positive bacteria within the Actinomycetota phylum. Species within this group are nonsporulating, strict or facultative anaerobes that are capable of thriving in a diverse set of ecological niches. Gordonibacter species are the only members capable of motility by means of flagella within the class. Several species within the Coriobacteriia class have been implicated with human diseases that range in severity. Atopobium, Olsenella, and Cryptobacterium species have responsible for human oral infections including periodontitis, halitosis, and other endodontic infections. Eggerthella species have been associated with severe blood bacteraemia and ulcerative colitis.
Coprothermobacterota is a phylum of nonmotile, rod-shaped bacteria.
The Oligoflexia are a class of the phylum Bdellovibrionota. All species of this group are all Gram-negative.
The Silvanigrellales are an order of the phylum Bdellovibrionota. They include currently only the single family Silvanigrellaceae.
Phycisphaeraceae is a family of bacteria.
Acanthopleuribacter pedis is a Gram-negative, rod-shaped bacterium found in marine environments.
The Temperatibacteraceae are a family of bacteria.
The Sneathiellaceae are a family of bacteria.
Euzebya is a genus of Gram-positive bacteria.
Bacteriovoracales is an order of bacteria.
Holophagae is a class of Acidobacteriota.
The Acanthopleuribacteraceae is a family of Acidobacteriota.
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