Related Research Articles
Helicobacter is a genus of Gram-negative bacteria possessing a characteristic helical shape. They were initially considered to be members of the genus Campylobacter, but in 1989, Goodwin et al. published sufficient reasons to justify the new genus name Helicobacter. The genus Helicobacter contains about 35 species.
In taxonomy, Ruegeria is a genus of the Rhodobacteraceae. This genus was formerly known as the marine Agrobacterium before they were reclassified in 1998. It bears in fact the name of Hans-Jürgen Rüger, a German microbiologist, for his contribution to the taxonomy of marine species of Agrobacterium.
Alcaligenes is a genus of Gram-negative, aerobic, rod-shaped bacteria. The species are motile with amphitrichous flagella and rarely nonmotile. It is a genus of non-fermenting bacteria. Additionally, some strains of Alcaligenes are capable of anaerobic respiration, but they must be in the presence of nitrate or nitrite; otherwise, their metabolism is respiratory and never fermentative; The genus does not use carbohydrates. Strains of Alcaligenes are found mostly in the intestinal tracts of vertebrates, decaying materials, dairy products, water, and soil; they can be isolated from human respiratory and gastrointestinal tracts and wounds in hospitalized patients with compromised immune systems. They are occasionally the cause of opportunistic infections, including nosocomial sepsis.
The Chloroflexi or Chlorobacteria are a phylum of bacteria containing isolates with a diversity of phenotypes, including members that are aerobic thermophiles, which use oxygen and grow well in high temperatures; anoxygenic phototrophs, which use light for photosynthesis ; and anaerobic halorespirers, which uses halogenated organics as electron acceptors.
Agromyces is a genus in the phylum Actinobacteria (Bacteria).
Laribacter hongkongensis is a species of bacteria. It is facultatively anaerobic, non-sporulating, gram-negative, seagull- or spiral rod-shaped. It is a potential human pathogen. Laribacter hongkongensis has been isolated from human cases of diarrhea, but its role in causing diarrhea is unproven, even though it has been hypothesized. Additional studies are needed to better define its role as a possible enteric pathogen. These should include: case control studies designed to differentiate infection from colonization-transient passage, fulfilling Koch’s postulates and Bradford-Hill’s criteria on association vs. causation, possible virulence factors, animal models, host factors, antibody respones based on serodiagnostic testing, and human volunteer studies. The lessons learned from trying to establish the etiological role of the bacteria genera Aeromonas, Plesiomonas, and Edwardsiella in human diarrhea seem especially applicable for Laribacter. All four genera are isolated from extraintestinal infections, are apparently found in the aquatic environment, and epidemiological associations include eating fish and foreign travel. Even after over 50 years’ experience with the former three genera their etiological role in an individual case of human diarrhea is difficult to determine without extensive studies. For all four of these genera the critical issue will be differentiating infection from colonization or transient passage in the intestine.
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 is a genus of Gram-positive, rod-shaped (bacillus) bacteria and a member of the phylum Firmicutes. Virgibacillus species can be obligate aerobes, or facultative anaerobes and catalase enzyme positive. Under stressful environmental conditions, the bacteria can produce oval or ellipsoidal endospores in terminal, or sometimes subterminal, swollen sporangia. The genus was recently reclassified from the genus Bacillus in 1998 following an analysis of the species V. pantothenticus. Subsequently, a number of new species have been discovered or reclassified as Virgibacillus species.
Pseudarthrobacter defluvii, with the old name Arthrobacter defluvii, is a bacterium species from the genus of Pseudarthrobacter which has been isolated from sewage from the Geumho River near Daegu in Korea. Arthrobacter defluvii has the ability to degrade 4-chlorophenol.
Sphingomonas koreensis is a Gram-negative and aerobic bacteria from the genus of Sphingomonas which has been isolated from natural mineral water in Taejon in Korea. Sphingomonas koreensis can cause meningitis on humans.
Nocardiopsis xinjiangensis is a halophilic bacterium from the genus of Nocardiopsis which has been isolated from saline soil in the Xinjiang Province in China.
Nocardioides aromaticivorans is a gram-positive non-motile bacterium from the genus Nocardioides thathas been isolated from a river contaminated with dioxin in Kanagawa, Japan. Nocardioides aromaticivorans has the ability to degrade dibenzofuran and carbazole.
Isoptericola is a Gram-positive and rod-shaped bacterial genus from the family of Promicromonosporaceae.
Isoptericola dokdonensis is a Gram-positive and non-motile bacterium from the genus of Isoptericola which has been isolated from soil from Dokdo in Korea.
Myceligenerans is a Gram-positive, spore-forming and mycelium-forming bacterial genus from the family of Promicromonosporaceae.
Laceyella is a Gram-positive, thermophilic, spore-forming and aerobic bacterial genus from the family of Thermoactinomycetaceae. The genus Laceyella is namened after the English microbiologist John Lacey.
Parapedobacter is a genus from the family of Sphingobacteriaceae.
Aeromicrobium is a Gram-positive, aerobic, non-spore-forming and non-motile bacterial genus from the family of Nocardioidaceae.
Lentzea is a Gram-positive, mesophilic and aerobic genus from the family of Pseudonocardiaceae.
Actinoplanes luteus is a bacterium from the genus of Actinoplanes which has been isolated from forest soil from Lamphun in Thailand.
