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Thermus thermophilus is a Gram-negative bacterium used in a range of biotechnological applications, including as a model organism for genetic manipulation, structural genomics, and systems biology. The bacterium is extremely thermophilic, with an optimal growth temperature of about 65 °C (149 °F). Thermus thermophilus was originally isolated from a thermal vent within a hot spring in Izu, Japan by Tairo Oshima and Kazutomo Imahori. The organism has also been found to be important in the degradation of organic materials in the thermogenic phase of composting. T. thermophilus is classified into several strains, of which HB8 and HB27 are the most commonly used in laboratory environments. Genome analyses of these strains were independently completed in 2004.
The class Gammaproteobacteria belongs to the Proteobacteria phylum and contains about 250 genera, which makes it the most genera-rich taxon of the Prokaryotes. Several medically, ecologically, and scientifically important groups of bacteria belong to this class. It is composed by all Gram-negative microbes and is the most phylogenetically and physiologically diverse class of Proteobacteria.
Shewanella algae is a rod-shaped Gram-negative marine bacterium.
Variovorax paradoxus is a gram negative, beta proteobacterium from the genus Variovorax. Strains of V. paradoxus can be categorized into two groups, hydrogen oxidizers and heterotrophic strains, both of which are aerobic. The genus name Vario-vorax and species name para-doxus (contrary-opinion) reflects both the dichotomy of V. paradoxus metabolisms, but also its ability to utilize a wide array of organic compounds.
Sphingomonas yanoikuyae is a short rod-shaped, strictly aerobic, Gram-negative, non-motile, non-spore-forming, chemoheterotrophic species of bacteria that is yellow or off-white in color. Its type strain is JCM 7371. It is notable for degrading a variety of aromatic compounds including biphenyl, naphthalene, phenanthrene, toluene, m-, and p-xylene. S. yanoikuyae was discovered by Brian Goodman on the southern coast of Papua New Guinea. However, Sphingomonas have a wide distribution across freshwater, seawater, and terrestrial habitats. This is due to the bacteria's ability to grow and survive under low-nutrient conditions as it can utilize a broad range of organic compounds.
Shewanella baltica DSS12 is a gram-negative bacterium. Its type strain is NCTC 10735. It is of particular importance in fish spoilage.
Alcanivorax dieselolei is a species of alkane-degrading bacteria. Its genome has been sequenced. It is halophilic, aerobic, Gram-negative, non-spore-forming, catalase- and oxidase-positive, motile and rod-shaped. Its type strain is B-5T.
Alcanivorax pacificus is a pyrene-degrading marine gammaprotobacterium. It is of the genus Alcanivorax, a group of marine bacteria known for degrading hydrocarbons. When originally proposed, the genus Alcanivorax comprised six distinguishable species. However, A. pacificus, a seventh strain, was isolated from deep sea sediments in the West Pacific Ocean by Shanghai Majorbio Bio-pharm Technology Co., Ltd. in 2011. A. pacificus’s ability to degrade hydrocarbons can be employed for cleaning up oil-contaminated oceans through bioremediation. The genomic differences present in this strain of Alcanivorax that distinguish it from the original consortium are important to understand to better utilize this bacteria for bioremediation.
Novosphingobium pentaromativorans is a species of high-molecular-mass polycyclic aromatic hydrocarbon-degrading bacterium. It is Gram-negative, yellow-pigmented and halophilic. With type strain US6-1T. Its genome has been sequenced.
Shewanella decolorationis is a gram-negative, dye-decolorizing bacterium first isolated from activated sludge of a waste-water treatment plant. It is motile by means of a single polar flagellum. The type strain is S12T. Its genome has been sequenced.
Cyclobacterium is a mesophilic, neutrophilic, chemoorganotrophic and aerobic bacterial genus from the family of Cyclobacteriaceae. Cyclobacterium bacteria occur in marine habitats
Wang Fengping is a Chinese marine microbiologist who studies microbes that live in deep sea and subsurface environments, with a special focus on the physiology and geochemical roles of organisms that cannot yet be cultivated in the lab. She is a professor at Shanghai Jiao Tong University.
Tianweitania sediminis is a bacterium from the genus of Tianweitania which has been isolated from terrestrial sediments from the Mohe Basin in China.
Shewanella amazonensis is a facultative anaerobic bacterium from the genus of Shewanella which has been isolated from shallow water sediments from the Amazon River. The strain SB2B of Shewanella amazonensis produces hentriacontanonaene.
Shewanella arctica is a Gram-negative and anaerobic bacterium from the genus of Shewanella which has been isolated from sediment from the Arctic.
Shewanella atlantica is a psychrophilic bacterium from the genus of Shewanella which has been isolated from marine sediment from the Emerald Basin from the Atlantic Ocean near Canada. Shewanella atlantica can degrade hexahydro-1,3,5-trinitro-1,3,5-triazine.
Shewanella canadensis is a psychrophilic bacterium from the genus of Shewanella which has been isolated from sediments from the Atlantic Ocean.
Shewanella chilikensis is a Gram-negative, rod-shaped, facultatively anaerobic and motile bacterium from the genus of Shewanella which has been isolated from sediments from the Chilika Lagoon in India and marine sponges of Saint Martin's Island of the Bay of Bengal, Bangladesh. Shewanella chilikensis are highly salt tolerant and commonly found in marine environment.
Echinicola sediminis is a Gram-negative, rod-shaped and aerobic bacterium from the genus of Echinicola which has been isolated from beach sediments from the Yellow Sea from Sindu-ri in Korea.
Oceanihabitans is a genus of marine bacterium in the family Flavobacteriaceae. It contains a single species, O. sediminis. It is aerobic, Gram-negative, rod-shaped, and motile by gliding. O. sediminis produces flexirubin pigments. It is positive for cytochrome c oxidase and catalase. O. sediminis can use glucose, mannose, maltose and adipic acid as sole carbon sources for chemoheterotrophic growth. It is a chemoorganotroph and is chemotaxonomically characterized by the presence of menaquinone 6 (MK-6). The type strain is S9-10T.
References
- ↑ Zhao, J.-S. (2005). "Shewanella sediminis sp. nov., a novel Na+-requiring and hexahydro-1,3,5-trinitro-1,3,5-triazine-degrading bacterium from marine sediment". International Journal of Systematic and Evolutionary Microbiology. 55 (4): 1511–1520. doi: 10.1099/ijs.0.63604-0 . ISSN 1466-5026. PMID 16014474.