| Dietzia psychralcaliphila | |
|---|---|
Scientific classification  | |
| Domain: | Bacteria |
| Phylum: | Actinomycetota |
| Class: | Actinomycetia |
| Order: | Mycobacteriales |
| Family: | Dietziaceae |
| Genus: | Dietzia |
| Species: | D. psychralcaliphila |
| Binomial name | |
| Dietzia psychralcaliphila Yumoto et al. 2002 | |
Dietzia psychralcaliphila is a facultatively psychrophilic alkaliphile that grows on hydrocarbons. It is aerobic, non-motile and gram-positive. The type strain is ILA-1T (= JCM 10987T = IAM14896T = NCIMB 13777T). [1]
A mesophile is an organism that grows best in moderate temperature, neither too hot nor too cold, with an optimum growth range from 20 to 45 °C. The optimum growth temperature for these organisms is 37°C. The term is mainly applied to microorganisms. Organisms that prefer extreme environments are known as extremophiles. Mesophiles have diverse classifications, belonging to two domains: Bacteria, Archaea, and to kingdom Fungi of domain Eucarya. Mesophiles belonging to the domain Bacteria can either be gram-positive or gram-negative. Oxygen requirements for mesophiles can be aerobic or anaerobic. There are three basic shapes of mesophiles: coccus, bacillus, and spiral.
Alkaliphiles are a class of extremophilic microbes capable of survival in alkaline environments, growing optimally around a pH of 10. These bacteria can be further categorized as obligate alkaliphiles, facultative alkaliphiles and haloalkaliphiles.
Pseudomonas alcaliphila is a psychrophilic, alkaliphilic, Gram-negative, aerobic straight rod bacterium with polar flagella isolated from sea water near Hokkaidō, Japan.
Aeromonas salmonicida is a pathogenic bacterium that severely impacts salmonid populations and other species. It was first discovered in a Bavarian brown trout hatchery by Emmerich and Weibel in 1894. Aeromonas salmonicida's ability to infect a variety of hosts, multiply, and adapt, make it a prime virulent bacterium. A. salmonicida is an etiological agent for furunculosis, a disease that causes sepsis, haemorrhages, muscle lesions, inflammation of the lower intestine, spleen enlargement, and death in freshwater fish populations. It is found worldwide with the exception of South America. The major route of contamination is poor water quality; however, it can also be associated stress factors such as overcrowding, high temperatures, and trauma. Spawning and smolting fish are prime victims of furunculosis due to their immunocompromised state of being.
Alkalihalobacillus alcalophilus is a Gram-positive, rod-shaped species of bacteria. Likely strains of this species have been isolated from highly alkaline waste water. A. alcalophilus is a moderate halotolerant obligate alkaliphile growing at 40 °C and at pH 9–10.5 that has been isolated from soil and animal manures.
Desulfobacter hydrogenophilus is a strictly anaerobic sulfate-reducing bacterium. It was isolated and characterized in 1987 by Friedrich Widdel of the University of Konstanz (Germany). Like most sulfate-reducing bacteria (SRB), D. hydrogenophilus is capable of completely oxidizing organic compounds (specifically acetate, pyruvate and ethanol) to CO2, and therefore plays a key role in biomineralization in anaerobic marine environments. However, unlike many SRB, D. hydrogenophilus is a facultative lithoautotroph, and can grow using H2 as an electron donor and CO2 as a carbon source. D. hydrogenophilus is also unique because it is psychrophilic (and has been shown to grow at temperatures as low as 0 °C or 32 °F). It is also diazotrophic, or capable of fixing nitrogen.
Gallaecimonas is a recently described genus of bacteria. The first described species of this genus was Gallaecimonas pentaromativorans gen. nov., sp. nov. isolated by Rodríguez Blanco et al. in 2010 from intertidal sediments of the ria of Corcubión. It is a Gram-negative, rod-shaped, halotolerant bacterium in the class Gammaproteobacteria. It can degrade high molecular mass polycyclic aromatic hydrocarbons of 4 and 5 rings. The 16S rRNA gene sequences of the type strain CEE_131(T) proved to be distantly related to those of Rheinheimera and Serratia. Its G+C content was 41.7 mol%.
Methanogenium frigidum is a psychrophilic, H2-using methanogen from Ace Lake, Antarctica.
Rhodoferax is a genus of Betaproteobacteria belonging to the purple nonsulfur bacteriarophic. Originally, Rhodoferax species were included in the genus Rhodocyclus as the Rhodocyclus gelatinous-like group. The genus Rhodoferax was first proposed in 1991 to accommodate the taxonomic and phylogenetic discrepancies arising from its inclusion in the genus Rhodocyclus. Rhodoferax currently comprises four described species: R. fermentans, R. antarcticus, R. ferrireducens, and R. saidenbachensis. R. ferrireducens, lacks the typical phototrophic character common to two other Rhodoferax species. This difference has led researchers to propose the creation of a new genus, Albidoferax, to accommodate this divergent species. The genus name was later corrected to Albidiferax. Based on geno- and phenotypical characteristics, A. ferrireducens was reclassified in the genus Rhodoferax in 2014. R. saidenbachensis, a second non-phototrophic species of the genus Rhodoferax was described by Kaden et al. in 2014.
Psychrobacter okhotskensis is a Gram-negative, catalase- and oxidase-positive, aerobic, facultatively psychrophilic, nonmotile bacterium of the genus Psychrobacter, which was isolated from seawater of the Monbetsu coast of the Okhotsk Sea in Hokkaido in Japan.
Dietzia natronolimnaea is an alkaliphilic, aerobic, organotrophic bacteria, with type strain 15LN1.
Pedobacter cryoconitis is a species of bacteria. It is facultatively psychrophilic, Gram-negative, aerobic and rod-shaped strain, having been first isolated from alpine glacier cryoconite. It is also non-flagellated and non-spore-forming, with type strain A37T.
Dietzia aerolata is a Gram-positive, coccoid and non-spore-forming bacterium from the genus Dietzia which has been isolated from air from a duck barn in Berlin in Germany.
Dietzia maris is a Gram-positive and aerobic bacterium from the genus Dietzia.
Dietzia lutea is a bacterium from the genus Dietzia which has been isolated from desert soil in Egypt.
Dietzia papillomatosis is a bacterium from the genus Dietzia which has been isolated from the skin scrapings of a patient in the United Kingdom.
Dyadobacter psychrophilus is a Gram-negative, aerobic and psychrophilic bacterium from the genus of Dyadobacter which has been from soil which was contaminated with hydrocarbon in Bozen in Italy.
Massilia eurypsychrophila is a Gram-negative, aerobic, rod-shaped and facultatively psychrophilic bacterium from the genus Massilia with a polar flagella which has been isolated from the ice core of the Muztagh Glacier in Xinjiang 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.
Paeniglutamicibacter psychrophenolicus is a Gram-positive, non-spore-forming, aerobic, rod-coccus, facultatively psychrophilic and non-motile bacterium from the genus Paeniglutamicibacter which has been isolated from an alpine ice cave in Salzburg, Austria.
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