Halomonadaceae is a family of halophilic Pseudomonadota.
Sulfur-reducing bacteria are microorganisms able to reduce elemental sulfur (S0) to hydrogen sulfide (H2S). These microbes use inorganic sulfur compounds as electron acceptors to sustain several activities such as respiration, conserving energy and growth, in absence of oxygen. The final product or these processes, sulfide, has a considerable influence on the chemistry of the environment and, in addition, is used as electron donor for a large variety of microbial metabolisms. Several types of bacteria and many non-methanogenic archaea can reduce sulfur. Microbial sulfur reduction was already shown in early studies, which highlighted the first proof of S0 reduction in a vibrioid bacterium from mud, with sulfur as electron acceptor and H
2 as electron donor. The first pure cultured species of sulfur-reducing bacteria, Desulfuromonas acetoxidans, was discovered in 1976 and described by Pfennig Norbert and Biebel Hanno as an anaerobic sulfur-reducing and acetate-oxidizing bacterium, not able to reduce sulfate. Only few taxa are true sulfur-reducing bacteria, using sulfur reduction as the only or main catabolic reaction. Normally, they couple this reaction with the oxidation of acetate, succinate or other organic compounds. In general, sulfate-reducing bacteria are able to use both sulfate and elemental sulfur as electron acceptors. Thanks to its abundancy and thermodynamic stability, sulfate is the most studied electron acceptor for anaerobic respiration that involves sulfur compounds. Elemental sulfur, however, is very abundant and important, especially in deep-sea hydrothermal vents, hot springs and other extreme environments, making its isolation more difficult. Some bacteria – such as Proteus, Campylobacter, Pseudomonas and Salmonella – have the ability to reduce sulfur, but can also use oxygen and other terminal electron acceptors.
In taxonomy, Natrialba is a genus of the Natrialbaceae. The genus consists of many diverse species that can survive extreme environmental niches, especially they are capable to live in the waters saturated or nearly saturated with salt (halophiles). They have certain adaptations to live within their salty environments. For example, their cellular machinery is adapted to high salt concentrations by having charged amino acids on their surfaces, allowing the cell to keep its water molecules around these components. The osmotic pressure and these amino acids help to control the amount of salt within the cell.
Armatimonadota is a phylum of gram-negative bacteria.
Armatimonas rosea is a Gram-negative bacterium and also the first species to be characterized within the phylum Armatimonadota. The Armatimonadota were previously known as candidate phylum OP10. OP10 was composed solely of environmental 16S rRNA gene clone sequences prior to A. rosea's discovery.
Chthonomonas calidirosea is a Gram-negative bacterium and also the first representative of the new class Chthonomonadetes within the phylum Armatimonadota. The Armatimonadota were previously known as candidate phylum OP10. OP10 was composed solely of environmental 16S rRNA gene clone sequences prior to C. calidirosea's relative, Armatimonas rosea's discovery. It is now known that bacterial communities from geothermal environments, are generally constituted by, at least 5–10% of bacteria belonging to Armatimonadota.
Fimbriimonas ginsengisoli is a Gram-negative bacterium and the first representative of the class Fimbriimonadia within the phylum Armatimonadota. The Armatimonadota were previously known as candidate phylum OP10. OP10 was composed solely of environmental 16S rRNA gene clone sequences prior to F. ginsengisoli's relative, Armatimonas rosea's discovery.
Streptomonospora amylolytica is a species of bacterium. Its type strain is YIM 91353T.
Oceanobacillus kapialis is a bacterium. It is a Gram-positive, rod-shaped, strictly aerobic, spore-forming, moderately halophilic bacterium. The type strain is SSK2-2.
Alkanindiges illinoisensis is an aerobic, catalase-positive, squalane-degrading, non-spore-forming, nonmotile bacterium of the genus Alkanindiges, which was isolated from oilfield soils.
Psychrobacter namhaensis is a Gram-negative, aerobic, non-spore-forming, slightly halophilic bacterium of the genus Psychrobacter, which was isolated from the South Sea in Korea.
Psychroflexus tropicus is an obligately halophilic Cytophaga–Flavobacterium–Bacteroides group bacterium. It is Gram-negative, fine rod- to short filament-shaped, with type strain LA1T.
Thioalkalivibrio is a Gram-negative, mostly halophilic bacterial genus of the family Ectothiorhodospiraceae.
Marinobacter lacisalsi is a Gram-negative, non-spore-forming, aerobic and moderately halophilic bacterium from the genus of Marinobacter which has been isolated from the lake from Fuente de Piedra in Spain.
Alkalibacterium is a genus in the phylum Bacillota (Bacteria).
Thalassotalea ganghwensis is a Gram-negative, aerobic and halophilic bacterium from the genus of Thalassotalea which has been isolated from tidal flat sediments in Korea.
Salinibacillus is a genus of bacteria from the family of Bacillaceae.
Allohahella marinimesophila is a Gram-negative, non-endospore-forming and strictly aerobic bacterium from the genus of Allohahella which has been isolated from seawater from the Yellow Sea.
Hahella chejuensis is a Gram-negative, aerobic, rod-shaped and motile bacterium from the genus of Hahella which has been isolated from Marado in Korea.
Alkalihalobacillus is a genus of gram-positive or gram-variable rod-shaped bacteria in the family Bacillaceae from the order Bacillales. The type species of this genus is Alkalihalobacillus alcalophilus.
