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Pseudomonas is a genus of Gram-negative, Gammaproteobacteria, belonging to the family Pseudomonadaceae and containing 191 validly described species. The members of the genus demonstrate a great deal of metabolic diversity and consequently are able to colonize a wide range of niches. Their ease of culture in vitro and availability of an increasing number of Pseudomonas strain genome sequences has made the genus an excellent focus for scientific research; the best studied species include P. aeruginosa in its role as an opportunistic human pathogen, the plant pathogen P. syringae, the soil bacterium P. putida, and the plant growth-promoting P. fluorescens, P. lini, P. migulae, and P. graminis.
Halomonadaceae is a family of halophilic Proteobacteria.
Elizabethkingia meningoseptica is a Gram-negative, rod-shaped bacterium widely distributed in nature. It may be normally present in fish and frogs; it may be isolated from chronic infectious states, as in the sputum of cystic fibrosis patients. In 1959, American bacteriologist Elizabeth O. King was studying unclassified bacteria associated with pediatric meningitis at the Centers for Disease Control and Prevention in Atlanta, when she isolated an organism that she named Flavobacterium meningosepticum. In 1994, it was reclassified in the genus Chryseobacterium and renamed Chryseobacterium meningosepticum(chryseos = "golden" in Greek, so Chryseobacterium means a golden/yellow rod similar to Flavobacterium). In 2005, a 16S rRNA phylogenetic tree of Chryseobacteria showed that C. meningosepticum along with C. miricola were close to each other but outside the tree of the rest of the Chryseobacteria and were then placed in a new genus Elizabethkingia named after the original discoverer of F. meningosepticum.
The Gemmatimonadetes are a phylum of bacteria established in 2003. The phylum contains two classes Gemmatimonadetes and Longimicrobia.
Cupriavidus necator is a Gram-negative soil bacterium of the class Betaproteobacteria.
Sphingomonas paucimobilis is a strictly aerobic Gram-negative bacterium that has a single polar flagellum with slow motility. The cell size is around 0.7 x 1.4 μm. It is usually found in soil. As with the other members of the genus, its biochemistry is remarkable in possession of ubiquinone 10 as its major respiratory quinone, and of glycosphingolipids instead of lipopolysaccharides in its cell envelope. It has been implicated in various types of clinical infections.
Ralstonia pickettii is a Gram-negative, rod-shaped, soil bacterium.
Pelomonas saccharophila is a Gram-negative soil bacterium. It was originally named Pseudomonas saccharophila in 1940, but was reclassified in 2005 to the newly created genus, Pelomonas. The original strain was isolated from mud.
Devosia is a genus of Gram-negative soil bacteria. It is named after the Belgian microbiologist Paul De Vos. They are motile by flagella, the cells are rod-shaped.
Cronobacter is a genus of Gram-negative, facultatively anaerobic, oxidase-negative, catalase-positive, rod-shaped bacteria of the family Enterobacteriaceae. They are generally motile, reduce nitrate, use citrate, hydrolyze esculin and arginine, and are positive for L-ornithine decarboxylation. Acid is produced from D-glucose, D-sucrose, D-raffinose, D-melibiose, D-cellobiose, D-mannitol, D-mannose, L-rhamnose, L-arabinose, D-trehalose, galacturonate and D-maltose. Cronobacter spp. are also generally positive for acetoin production and negative for the methyl red test, indicating 2,3-butanediol rather than mixed acid fermentation. The type species of the genus Cronobacter is Cronobacter sakazakii comb. nov.
Arcanobacterium is a genus of bacteria. They are gram-positive, non–acid fast, nonmotile, facultatively anaerobic, and non–endospore forming. They are widely distributed in nature in the microbiota of animals and are mostly innocuous. Some can cause disease in humans and other animals. As with various species of a microbiota, they usually are not pathogenic but can occasionally opportunistically capitalize on atypical access to tissues or weakened host defenses.
Cupriavidus metallidurans strain CH34 (renamed from Ralstonia metallidurans and previously known as Ralstonia eutropha and Alcaligenes eutrophus) is a non-spore-forming, Gram-negative bacterium which is adapted to survive several forms of heavy metal stress. Therefore, it is an ideal subject to study heavy metal disturbance of cellular processes. This bacterium shows a unique combination of advantages not present in this form in other bacteria.
The Negativicutes are a class of bacteria in the phylum Firmicutes, whose members have a peculiar cell wall with a lipopolysaccharide outer membrane which stains gram-negative, unlike most other members of the Firmicutes. Although several neighbouring Clostridia species also stain gram-negative, the proteins responsible for the unusual diderm structure of the Negativicutes may have actually been laterally acquired from Proteobacteria. Additional research is required to confirm the origin of the diderm cell envelope in the Negativicutes.
Afifella is a genus in the phylum Proteobacteria (Bacteria). Afifella are found in marine and estuarine settings, including microbial mats. They are anaerobes, with one cultured representative capable of photosynthesis.
Curvibacter delicatus is a Gram-negative bacterium from the genus Curvibacter and family Comamonadaceae, which was isolated from well water.
Curvibacter gracilis is a Gram-negative bacterium from the genus Curvibacter and family Comamonadaceae, which was isolated from well water.
Kerstersia gyiorum is a Gram-negative, catalase-positive, oxidase-negative, bacterium of the genus Kerstersia, isolated from various human clinical samples.
Lysinibacillus boronitolerans is a spore-forming, Gram-positive, motile, rod-shaped and boron-tolerant bacterium with type strain 10aT.
Dokdonia donghaensis is a strictly aerobic, gram-negative, phototrophic bacterium that thrives in marine environments. The organism can grow at a broad range of temperatures on seawater media. It has the ability to form biofilms, which increases the organism's resistance to antimicrobial agents, such as tetracycline.
References
- ↑ "IPSN LPSN" . Retrieved 14 October 2017.
- ↑ Straininfo of Alcaligenes latus
- ↑ UniProt
- ↑ Lee, SY; Choi Ji, Han K; Song, JY (1999). "Removal of endotoxin during purification of poly(3-hydroxybutyrate) from gram-negative bacteria". Appl Environ Microbiol. 65 (6): 2762–4. doi:10.1128/aem.65.6.2762-2764.1999. PMC 91410 . PMID 10347075.
- ↑ Biotechnology Techniques, Volum 7 No.4 (April 1993) pp.294-300 Received as revised 22 February The Lysis of Gram-negative Alcaligenes eutrophus and Alcaligenes latus by Palmitoyl Carnitine, Kyung Mi Lee, Ho Nam Chang, Yong Keun Chang, Beom Soo Kim, and Sei Kwang Hahn
- ↑ International Journal of Systematic and Evolutionary Microbiology
- ↑ Xie, CH; Yokota, A (2005). "Reclassification of Alcaligenes latus strains IAM 12599T and IAM 12664 and Pseudomonas saccharophila as Azohydromonas lata gen. nov., comb. nov., Azohydromonas australica sp. nov. and Pelomonas saccharophila gen. nov., comb. nov., respectively". Int J Syst Evol Microbiol. 55 (6): 2419–25. doi: 10.1099/ijs.0.63733-0 . PMID 16280506.
