|
Halanaerobiales
The Halanaerobiales are an order of bacteria placed within the class Clostridia, and encompassing two families, the Halanaerobiaceae and the Halobacteroidaceae. Originally placed within the highly polyphyletic class Clostridia, according to the NCBI and LPSN, it is now thought to lie outside the Bacillota. Halanaerobiales are halophilic obligate anaerobes with a fermentative or homoacetogenic metabolism. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). See also * List of bacterial orders * List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ... References Further reading Bacteria orders {{clostridia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacillota
The Bacillota (synonym Firmicutes) are a phylum of bacteria, most of which have gram-positive cell wall structure. The renaming of phyla such as Firmicutes in 2021 remains controversial among microbiologists, many of whom continue to use the earlier names of long standing in the literature. The name "Firmicutes" was derived from the Latin words for "tough skin," referring to the thick cell wall typical of bacteria in this phylum. Scientists once classified the Firmicutes to include all gram-positive bacteria, but have recently defined them to be of a core group of related forms called the low- G+C group, in contrast to the Actinomycetota. They have round cells, called cocci (singular coccus), or rod-like forms (bacillus). A few Firmicutes, such as ''Megasphaera'', ''Pectinatus'', ''Selenomonas'' and ''Zymophilus'', have a porous pseudo-outer membrane that causes them to stain gram-negative. Many Bacillota (Firmicutes) produce endospores, which are resistant to desiccation and can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clostridia
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 (see ''Halanaerobium'') 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. Most species of the genus ''Clostridium'' are saprophytic organisms that ferment plant polysaccharides and are found in many places in the environment, most notably the soil. However, the genus does contain some human pathogens (outlined below). The toxins produced by certain members of the genus ''Clostridium'' are among the most dangerous known. Examples are tetanus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acetohalobium
''Acetohalobium'' is a genus in the phylum Bacillota (Bacteria). Etymology The name ''Acetohalobium'' derives from: Latin ''acetum'', vinegar; Greek noun ''hals'' (ἅλς)'', salt; Greek ''bios'' (βίος), life; giving ''Acetohalobium'', acetate-producing organism living in salt. Species The genus contains a single species, namely '' A. arabaticum'' ( Zhilina and Zavarzin 1990), type species of the genus; Latin ''arabaticum'', from Arabat, a peninsula between the Sea of Azov and Sivash. See also * Bacterial taxonomy * Microbiology * List of bacterial orders * List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ... References {{Taxonbar, from=Q3604303 Halanaerobiales Monotypic bacteria genera Bacteria genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halanaerobacter
''Halanaerobaculum'' is a haloanaerobic genus of bacteria from the family of Halobacteroidaceae. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI) See also * List of bacterial orders * List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ... References Clostridia Bacteria genera Taxa described in 1996 {{Firmicutes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orenia
''Orenia'' is a genus of bacteria from the family of Halobacteroidaceae. Orenia bacteria occurs in saline environments. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. Th ... (NCBI) See also * List of bacterial orders * List of bacteria genera References Clostridia Bacteria genera Taxa described in 1995 {{Firmicutes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halobacteroides
''Halobacteroides'' is a Gram-negative strictly anaerobic, chemoorganotrophic genus of bacteria from the family of Halobacteroidaceae. See also * List of bacterial orders * List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ... References Clostridia Bacteria genera Taxa described in 1984 {{Firmicutes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halanaerobaculum
''Halanaerobaculum'' is a halophilic, anaerobic, non-spore-forming, rod-shaped and non-motile genus of bacteria from the family of Halobacteroidaceae with one known species ('' Halanaerobaculum tunisiense''). ''Halanaerobaculum tunisiense'' has been isolated from hypersaline sediments from the salt lake Chott el Djerid in Tunisia. See also * List of bacterial orders * List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ... References Clostridia Bacteria genera Taxa described in 2001 Monotypic bacteria genera {{Firmicutes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halarsenatibacter
''Halarsenatibacter'' is a Gram-negative, strictly anaerobic and motile genus of bacteria from the family of Halanaerobiaceae with one known species ('' Halarsenatibacter silvermanii''). ''Halarsenatibacter silvermanii'' has been isolate from the Searles Lake. See also * List of bacterial orders * List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ... References Clostridia Bacteria genera Taxa described in 2010 Monotypic bacteria genera {{Firmicutes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selenihalanaerobacter
''Selenihalanaerobacter'' is a Gram-negative, obligately anaerobic and halophilic genus of bacteria from the family of Halobacteroidaceae with one known species ('' Selenihalanaerobacter shriftii''). ''Selenihalanaerobacter shriftii'' has been isolated from the Dead Sea. ''Selenihalanaerobacter shriftii'' grows by respiration of selenate. See also * List of bacterial orders * List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ... References Clostridia Bacteria genera Taxa described in 2001 Monotypic bacteria genera {{Firmicutes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporohalobacter
''Sporohalobacter'' are a genus of anaerobic bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were am ... belonging to the family Haloanaerobiaceae. The organisms are spore-forming bacteria that grow in hypersaline environments. See also * List of bacterial orders * List of bacteria genera References Halanaerobiales Bacteria genera Taxa described in 1988 {{clostridia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halophilic
The halophiles, named after the Greek word for "salt-loving", are extremophiles that thrive in high salt concentrations. While most halophiles are classified into the domain Archaea, there are also bacterial halophiles and some eukaryotic species, such as the alga ''Dunaliella salina'' and fungus ''Wallemia ichthyophaga''. Some well-known species give off a red color from carotenoid compounds, notably bacteriorhodopsin. Halophiles can be found in water bodies with salt concentration more than five times greater than that of the ocean, such as the Great Salt Lake in Utah, Owens Lake in California, the Urmia Lake in Iran, the Dead Sea, and in evaporation ponds. They are theorized to be a possible analogues for modeling extremophiles that might live in the salty subsurface water ocean of Jupiter's Europa and similar moons. Classification Halophiles are categorized by the extent of their halotolerance: slight, moderate, or extreme. Slight halophiles prefer 0.3 to 0.8 M (1.7 to 4.8%†... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halanaerobium
''Halanaerobium'' is a Gram-negative, non-endospore-forming, rod-shaped, and strictly anaerobic genus of bacteria from the family Halanaerobiaceae. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). See also * List of bacterial orders * List of bacteria genera This article lists the genera of the bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI). However many taxonomic names are ... References Clostridia Bacteria genera Taxa described in 1984 {{Bacillota-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |