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Bacteria

(Kingdom)

Overview

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(Gr. baktêria: stick) The domain comprising the kingdom Eubacteria.

Photos

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Taxonomy

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The Kingdom Bacteria is a member of the Domain Bacteria. Here is the complete "parentage" of Bacteria:

The Kingdom Bacteria is further organized into finer groupings including:

Families

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Acetobacteraceae

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Acidaminococcaceae

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Acidothermaceae

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Actinomycetaceae

Actinomycetaceae is a family of bacteria in the order Actinomycetales that contains the medically important genus Actinomyces. [more]

Aerococcaceae

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Aeromonadaceae

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Alcaligenaceae

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Alicyclobacillaceae

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Alteromonadaceae

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Anaplasmataceae

Anaplasmataceae is a Proteobacteria family that includes genera Anaplasma, Ehrlichia, Neorickettsia and Wolbachia. [more]

Aquificaceae

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Bacillaceae

Bacillaceae is a family of Gram-positive, heterotrophic, rod-shaped bacteria that may produce endospores. Motile members of this family are characterized by peritrichous flagellae. Some Bacillaceae are aerobic, while others are facultative or strict anaerobes. Most are non-pathogenic, but Bacillus species are known to cause disease in humans. [more]

Bacteroidaceae

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Bifidobacteriaceae

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Bradyrhizobiaceae

The Bradyrhizobiaceae are a family of bacteria, with ten genera. They include plant-associated bacteria such as Bradyrhizobium, a genus of rhizobia associated with some legumes. It also contains animal-associated bacteria such as , formerly thought to cause cat-scratch disease. Others are free-living, such as Rhodopseudomonas, a purple bacterium found in marine water and soils. The strain Rhodopseudomonas palustris DX-1 can generate an electric current with no hydrogen production, a trait that is being explored in the development of the microbial fuel cell. [more]

Brevibacteriaceae

Brevibacterium is a genus of bacteria of the order Actinomycetales. They are Gram-positive soil organisms. It is the sole genus in the family Brevibacteriaceae. [more]

Burkholderiaceae

The Burkholderiaceae are a family of bacteria, included in the order Burkholderiales. It includes some pathogenic species, like Burkholderia mallei (Glanders) and Burkholderia pseudomallei (Melioidosis). [more]

Campylobacteraceae

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Caposiraceae

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Carnobacteriaceae

The Carnobacteriaceae are a family of Gram-positive lactic acid bacteria. [more]

Caulobacteraceae

Caulobacteraceae is a family of proteobacteria, given its own order within the alpha subgroup. Like all Proteobacteria, the Caulobacteraceae are gram-negative. Caulobacteraceae includes genera Brevundimonas and Caulobacter. [more]

Chamaesiphonaceae

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Chlamydiaceae

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Chlorobiaceae

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Chromatiaceae

The Chromatiaceae are the main family of purple sulfur bacteria. They are distinguished by producing sulfur globules within their cells. These are an intermediate in the oxidization of sulfide, which is ultimately converted into sulfate, and may serve as a reserve. Members are found in both fresh and salt water, and are especially common in stagnant pools. [more]

Chroococcaceae

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Clostridiaceae

The Clostridiaceae are a family of the Clostridia, and contains the Clostridium genus. [more]

Colwelliaceae

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Comamonadaceae

The Comamonadaceae are a family of the Beta Proteobacteria. Like all Proteobacteria, they are Gram-negative. They are aerobic and most of the species are motile via flagella and curved rod-shaped. [more]

Corynebacteriaceae

Corynebacterium (k?r"u-ne-bak-ter'e-um, ku-rin'u-) is a genus of Gram-positive rod-shaped bacteria. They are widely distributed in nature and are mostly innocuous. Some are useful in industrial settings such as . Others can cause human disease. C. diphtheriae, for example, is the pathogen responsible for diphtheria. [more]

Coxiellaceae

Coxiellaceae is a family in the order Legionellales. [more]

Cryomorphaceae

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Cystobacteraceae

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Deinococcaceae

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Desulfovibrionaceae

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Ectothiorhodospiraceae

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Enterobacteriaceae

The Enterobacteriaceae is a large family of Gram-negative bacteria that includes many of the more familiar pathogens, such as Salmonella, Escherichia coli, Yersinia pestis, Klebsiella and Shigella. This family is the only representative in the order Enterobacteriales of the class Gammaproteobacteria in the phylum Proteobacteria. Phylogenetically, in the Enterobacteriales, several peptidoglycan-less insect endosymbionts form a sister clade to the Enterobacteriaceae, but as they are not validly described, this group is not officially a taxon; examples of these species are , Buchnera, Wigglesworthia,Baumannia and Blochmannia, but not formers rickettsias. Members of the Enterobacteriaceae can be trivially referred to as enterobacteria, as several members live in the intestines of animals. In fact, the etymology of the family is enterobacterium with the suffix to designate a family (aceae) ? not after the genus Enterobacter (which would be "Enterobacteraceae")? and the type genus is Escherichia. [more]

Enterococcaceae

The Enterococcaceae is a family of Gram-positive bacteria, placed within the order of Lactobacillales. Representative genera include , Enterococcus, Melissococcus, Pilibacter, Tetragenococcus, and Vagococcus. In this family are some important lactic acid bacteria (LAB) which produce lactic acid as the major metabolic end product. [more]

Eubacteriaceae

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Fischerellaceae

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Flavobacteriaceae

The family Flavobacteriaceae is composed of environmental bacteria. Most species are aerobic, some are microaerobic to anaerobic, for example , Capnocytophaga and Coenonia. [more]

Flexibacteraceae

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Fusobacteriaceae

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Gemmatimonadaceae

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Gordoniaceae

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Helicobacteraceae

Helicobacter is a genus of Gram-negative bacteria possessing a characteristic helix shape. They were initially considered to be members of the Campylobacter genus, but since 1989 they have been grouped in their own genus. The Helicobacter genus belongs to class Epsilonproteobacteria, order Campylobacterales, family Helicobacteraceae and already involves >35 species. [more]

Hyellaceae

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Hyphomicrobiaceae

The Hyphomicrobiaceae are a family of bacteria. Among others, they include , a genus of purple bacteria. [more]

Kofleriaceae

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Lactobacillaceae

The Lactobacillaceae are a family of lactic acid bacteria. [more]

Legionellaceae

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Lentisphaeraceae

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Leuconostocaceae

The Leuconostocaceae is a family of Gram-positive bacteria, placed within the order of Lactobacillales. Representative genera include Leuconostoc, Oenococcus and Weissella. Bacteria that belongs to these three genera are Gram-positive, non-spore-forming, round or elongated in shape, are anaerobic or aerotolerant. They usually inhabit nutrient-rich environments such as milk, meat, vegetable products and fermented drinks (Bj?rkroth & Holzapfel, 2006). Lactic acid is the main end product of their characteristic heterofermentative carbohydrate metabolism. The phylogeny of the family of Leuconostocaceae has recently been evaluated by Chelo et al., 2007 [more]

Merismopediaceae

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Microbacteriaceae

Microbacteriaceae is a family of bacteria of the order Actinomycetales. They are Gram-positive soil organisms. [more]

Microchaetaceae

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Micrococcaceae

The family Micrococcaceae includes bacterial genera of Gram positive cocci that inhabit the air and skin such as Micrococcus luteus. [more]

Microcystaceae

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Micromonosporaceae

Micromonosporaceae is a family of bacteria of the order Actinomycetales. They are gram-positive, spore-forming soil organisms that form a true mycelium. [more]

Moraxellaceae

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Moritellaceae

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Mycobacteriaceae

Mycobacterium is a genus of Actinobacteria, given its own family, the Mycobacteriaceae. The genus includes pathogens known to cause serious diseases in mammals, including tuberculosis (Mycobacterium tuberculosis) and leprosy (Mycobacterium leprae). The Greek prefix "myco?" means fungus, alluding to the way mycobacteria have been observed to grow in a mould-like fashion on the surface of liquids when cultured. [more]

Mycoplasmataceae

The Mycoplasmataceae is a family of bacteria in the order Mycoplasmatales. This family comprises the species Mycoplasma and Ureaplasma. [more]

Myxococcaceae

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Nannocystaceae

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Nautiliaceae

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Neisseriaceae

The Neisseriaceae are a family of Proteobacteria, given their own order. While many organisms in the family are mammalian commensals or part of the normal flora, the genus Neisseria includes 2 important human pathogens, specifically those responsible for gonorrhea and many cases of meningitis. As a group, Neisseriaceae are strictly aerobic, Gram-negative, occur mainly in pairs (diplococci), and typically do not have flagella. [more]

Nitrospiraceae

Nitrospirae is a phylum of bacteria. It contains only one class, Nitrospira, which itself contains one order (Nitrospirales) and one family (Nitrospiraceae). It includes multiple genera, such as Nitrospira, the largest. The first member of this phylum, , was discovered in 1995. [more]

Nocardiaceae

The Nocardiaceae are a family of aerobic, non-fastidious, high G+C, Gram-positive actinomycetes that are commonly found in soil and water. Members of this family have been isolated from Antarctic soils. Nocardiaceae present coccobacilli, filamentous or, rarely, fragmented and palisading forms, and filamentous species grow in a branching morphological pattern similar to fungal hyphae. [more]

Nocardioidaceae

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Nostocaceae

The Nostocaceae is a family of cyanobacteria that forms filament-shaped colonies enclosed in mucus or a gelatinous sheath. Some genera in this family are found primarily in fresh water (such as Nostoc), while others are found primarily in salt water (such as Nodularia). Other genera (e.g. Anabaena) may be found in both fresh and salt water. [more]

Oscillatoriaceae

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Oscillochloridaceae

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Oxalobacteraceae

The Oxalobacteraceae are a family of bacteria, included in the order Burkholderiales. Like all Proteobacteria, Oxalobacteraceae are gram-negative. The Family includes strict aerobes, strict anaerobes, and also nitrogen-?xing (diazotrophs) members. [more]

Paenibacillaceae

The Paenibacillaceae are a family of Gram positive bacteria. [more]

Pasteurellaceae

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Peptococcaceae

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Phormidiaceae

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Phyllobacteriaceae

The Phyllobacteriaceae are a family of bacteria that contain nine genera. The most common of these is Mesorhizobium which contains some of the rhizobia species. [more]

Piscirickettsiaceae

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Polyangiaceae

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Pseudanabaenaceae

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Pseudomonadaceae

The Pseudomonadaceae is a family of bacteria that includes the genera Azomonas, Azomonotrichon, Azorhizophilus, Azotobacter, Cellvibrio, Mesophilobacter, Pseudomonas (the type genus), Rhizobacter, Rugamonas, and Serpens. The Azotobacteriaceae were recently published as belonging in this family as well. [more]

Pseudonocardiaceae

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Rhizobiaceae

The Rhizobiaceae are a family of proteobacteria, including many (but not all) species of rhizobia as well as plant parasites like Agrobacterium. Rhizobiaceae are, like all Proteobacteria, gram-negative. They are aerobic and the cells are usually rod-shaped. Many species of the Rhizobiaceae are diazotrophs, they are able to fix nitrogen and are symbiotic with plant roots. [more]

Rhodobacteraceae

The Rhodobacteraceae are a family of proteobacteria, given their own order within the alpha subgroup. Like all proteobaceria, they are gram-negative. It contains chemoorganotrophs and photoheterotrophs bacteria. Many occur in aquatic habitats. [more]

Rhodocyclaceae

The Rhodocyclaceae are a family of gram-negative bacteria. They are given their own order in the beta subgroup of Proteobacteria, and include many genera previously assigned to the family Pseudomonadaceae. The family contains mainly aerobic or denitrifying rod-shaped bacteria, which exhibit very versatile metabolic capabilities. Most species live in aquatic habitats and prefer oligotrophic conditions. Many occur in waste water and play an important role in biological remediation in waste water treatment. The name-giving genus Rhodocyclus is rather atypical for the group, being the only phototroph among them. Rhodocyclus sp. are performing anoxygenic photosynthesis under anoxic conditions in a similar way as other bacterial genera among the alpha-Proteobacteria. The species Rhodocyclus purpureus also deviates from the other known members of the family (including other Rhodocyclus species) in its ring-shaped cell form, which brings the two cell poles close to each other and has inspired the genus name. [more]

Rickettsiaceae

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Rivulariaceae

Rivulariaceae is a family of cyanobacteria within Nostocales in which the filaments (trichomes) are tapered from wider at the base to narrower at the tip. The type species is Rivularia haematites (Dc) C. A. Agard. [more]

Schizotrichaceae

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Sphingomonadaceae

Sphingomonadaceae are a family of Alpha Proteobacteria that contain all the sphingomonads. [more]

Spirochaetaceae

Spirochaetaceae is a family of spirochetes most notable for the genus that causes Lyme disease and relapsing fever. [more]

Sporichthyaceae

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Sporolactobacillaceae

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Staphylococcaceae

The Staphylococcaceae is a family of Gram positive bacteria that includes the genus Staphylococcus, noted for encompassing several medically significant pathogens. [more]

Streptococcaceae

The Streptococcaceae is a family of Gram-positive bacteria, placed within the order of Lactobacillales. Representative genera include Lactococcus, , Pilibacter, and Streptococcus. [more]

Streptomycetaceae

Streptomycetaceae is a family of Actinobacteria, making up to the monotypic suborder Streptomycineae. It includes the important genus Streptomyces. This was the original source of many antibiotics, namely streptomycin. Streptomycin was the first antibiotic against tuberculosis. [more]

Streptosporangiaceae

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Succinivibrionaceae

The Succinivibrionaceae are Gram-negative soil bacteria. [more]

Synechococcaceae

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Syntrophomonadaceae

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Thermoanaerobacteriaceae

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Thermomonosporaceae

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Thiotrichaceae

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Vibrionaceae

The Vibrionaceae are a family of Proteobacteria given their own order. Inhabitants of fresh or salt water, several species are pathogenic, including the type species Vibrio cholerae, which is the agent responsible for cholera. Most bioluminescent bacteria belong to this family, and are typically found as symbionts of deep-sea animals. [more]

Xenococcaceae

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At least 80 species and subspecies belong to the Family Xenococcaceae.

More info about the Family Xenococcaceae may be found here.

Sources

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Last Revised: August 25, 2014
2014/08/25 12:08:04