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The Thermomicrobia is a group of thermophilic green non-sulfur bacteria. Based on species Thermomicrobium roseum and Sphaerobacter thermophilus, this bacteria class has the following description:
The Alicyclobacillaceae are a family of Gram-positive bacteria. All members of this family are aerobic and form endospores.
The Gemmatimonadetes are a phylum of bacteria established in 2003. The phylum contains two classes Gemmatimonadetes and Longimicrobia.
The genus Lysobacter belongs to the family Xanthomonadaceae within the Gammaproteobacteria and includes at least 46 named species, including: Lysobacter enzymogenes, L. antibioticus, L. gummosus, L. brunescens, L. defluvii, L. niabensis, L. niastensis, L. daejeonensis, L. yangpyeongensis, L. koreensis, L. concretionis, L. spongiicola, and L. capsici. Lysobacter spp. were originally grouped with myxobacteria because they shared the distinctive trait of gliding motility, but they uniquely display a number of traits that distinguish them from other taxonomically and ecologically related microbes including high genomic G+C content and the lack of flagella. The feature of gliding motility alone has piqued the interest of many, since the role of gliding bacteria in soil ecology is poorly understood. In addition, while a number of different mechanisms have been proposed for gliding motility among a wide range of bacterial species, the genetic mechanism in Lysobacter remains unknown. Members of the Lysobacter group have gained broad interest for production of extracellular enzymes. The group is also regarded as a rich source for production of novel antibiotics, such as β-lactams containing substituted side chains, macrocyclic lactams and macrocyclic peptide or depsipeptide antibiotics like the katanosins.
Psychrobacter is a genus of Gram-negative, osmotolerant, oxidase-positive, psychrophilic or psychrotolerant, aerobic bacteria which belong to the family Moraxellaceae and the class Gammaproteobacteria. The shape is typically cocci or coccobacilli. Some of those bacteria were isolated from humans and can cause humans infections such as endocarditis and peritonitis. This genus of bacteria is able to grow at temperatures between −10 and 42 °C. Rudi Rossau found through DNA-rRNA hybridization analysis that Psychrobacter belongs to the Moraxellaceae. The first species was described by Juni and Heym. Psychrobacter occur in wide range of moist, cold saline habitats, but they also occur in warm and slightly saline habitats.
Virgibacillus salexigens is a species of Gram-positive bacteria. This species was formerly contained by the genus Salibacillus and before that by Bacillus. Strains of this species were originally isolated from salterns and saline soil samples in Spain. They are spore-forming, slightly aerobic, and moderately halophilic.
Teixobactin is a peptide-like secondary metabolite of some species of bacteria, that kills some gram-positive bacteria. It appears to belong to a new class of antibiotics, and harms bacteria by binding to lipid II and lipid III, important precursor molecules for forming the cell wall.
Eleftheria terrae is a recently discovered Gram-negative bacterium. E. terrae is a temporary name for the organism, as it was only discovered in 2014 and is still undergoing scientific study. It was found to produce a previously unknown antibiotic named teixobactin. The discovery of E. terrae could represent a new age of antibiotics, as teixobactin is the first new antibiotic discovered since the synthetic era of the 1980s. Prior research has indicated that other uncultivable bacteria like E. terrae have potential in the development of new antimicrobial agents.
Hymenobacter is a Gram-negative and non-motile bacterial genus from the family of Flavobacteriaceae.
Dyadobacter is a genus of gram negative rod-shaped bacteria belonging to the family Cytophagaceae in the phylum Bacteroidetes. Typical traits of the genus include yellow colony colour, positive flexirubin test and non-motile behaviours. They possess an anaerobic metabolism, can utilise a broad range of carbon sources, and test positive for peroxide catalase activity. The type species is Dyadobacter fermentans, which was isolated from surface sterilised maize leaves,.
Roseomonas is a genus of Gram negative bacteria. The cells are coccoid rods when viewed microscopically. Certain species are known to be opportunistic infections for humans.
Janibacter is a genus of Gram positive, nonmotile, non-sporeforming bacteria. The genus name is derived from the two-faced Roman god Janus, referring to the fact that the cells of the original strain could be rod-shaped or coccoid.
Oryzihumus is a Gram-positive, aerobic and non-motile bacterial genus from the family of Intrasporangiaceae.
Stenotrophomonas humi is a nitrate-reducing, Gram-negative, rod-shaped and non-spore-forming bacterium from the genus of Stenotrophomonas which has been isolated from soil from Ghent in Belgium.
Terrabacter tumescens is a species of Gram-positive, mesophilic bacteria. Young cells are long rods, and older cultures are coccoid. It was first described in 1934, and its name is derived from Latin tume, referencing how older cells swell and break off new cells. It was initially isolated from soil. The optimum growth temperature for T. tumescens is 25-30 °C and can grow in the 10-35 °C range.
Terrabacter aerolatus is a species of Gram-positive, nonmotile, non-endosporeforming bacteria. Cells are either rods or coccoid. It was initially isolated from an air sample in Jeju Province, South Korea. The species was first described in 2007, and its name is derived from Latin aer (air) and latus (carried).
Terrabacter carboxydivorans is a species of Gram-positive, nonmotile, non-endosporeforming bacteria. Cells are rod-shaped. It was initially isolated from roadside soil near Yonsei University, Seoul, South Korea during a survey for bacteria with the ability to digest carbon monoxide. The species was first described in 2011, and its name is derived from Latin carboxydum (air) and vorans.
Terrabacter koreensis is a species of Gram-positive, nonmotile, non-endosporeforming bacteria. Cells are rod-shaped. It was initially isolated from soil from a flowerbed in Bucheon, South Korea. The species was first described in 2014, and its name refers to its South Korean isolation location.
Terrabacter lapilli is a species of Gram-positive, nonmotile, non-endosporeforming bacteria. Cells are short rods. It was initially isolated from a small stone from an agricultural field in Jeju Province, South Korea. The species was first described in 2008, and its name is derived from Latin lapilli.
Terrabacter terrigena is a species of Gram-positive, nonmotile, non-endosporeforming bacteria. Cells are rod-shaped. It was initially isolated from soil from around a wastewater treatment plant in South Korea. The species was first described in 2009, and its name is derived from Latin terrigena referring to the isolation of the type strain from soil.
References
- 1 2 Montero-Barrientos, M.; Rivas, R.; Velazquez, E.; Monte, E.; Roig, M.G. (1 November 2005). "Terrabacter terrae sp. nov., a novel actinomycete isolated from soil in Spain". International Journal of Systematic and Evolutionary Microbiology. 55 (6): 2491–2495. doi:10.1099/ijs.0.63768-0.