Related Research Articles
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 of 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.
Clostridium estertheticum is an anaerobic, psychrophilic, motile, spore-forming Gram-positive bacterium.
Thermoanaerobacter is a genus in the phylum Bacillota (Bacteria). Members of this genus are thermophilic and anaerobic, several of them were previously described as Clostridium species and members of the now obsolete genera Acetogenium and Thermobacteroides
Deleya halophila is a salt-loving, gram-negative bacteria. It is known to habitat marine environments, solar salterns, saline soils, and salted food. The genus was named after J. De Ley, a noted biologist. Its type strain is CCM 3662.
Methanothrix soehngenii is a species of methanogenic archaea. Its cells are non-motile, non-spore-forming, rod-shaped and are normally combined end to end in long filaments, surrounded by a sheath-like structure. It is named in honour of N. L. Söhngen.
Bacillus selenitireducens is a bacterium first isolated from Mono Lake, California. It is notable for respiring oxyanions of selenium and arsenic. It is spore-forming, rod-shaped and alkaliphile, its type strain being MLS10.
Roseovarius tolerans is a species of bacteria, the type species of its genus. It is a budding bacterium with variable bacteriochlorophyll a production. It is Gram-negative, aerobic, contains storage granules and can be motile. The type strain is EL-172T.
Desulfovibrio bastinii is a moderately halophilic bacteria. It is sulfate-reducing, mesophilic and motile. Its type strain is SRL4225T.
Halobacteroides halobius is a species of bacteria, the type species of its genus. It is a moderately halophilic, anaerobic, long rod-shaped, motile, Gram-negative and non-sporulating bacterium.
Pectinatus frisingensis is a species of anaerobic, Gram-negative, rod-shaped bacteria first isolated from spoilt beer.
The Natranaerobiales are an order of bacteria placed within the class Clostridia. This order contains the thermophilic bacterial species Natranaerobius thermophilus and the related species Natranaerobaculum magadiense.
Salinibacter ruber is an extremely halophilic red bacterium, first found in Spain in 2002.
Thermonema is a Gram-negative, chemoheterotrophic and aerobic genus from the phylum Bacteroidota.
Haloferax mediterranei is a species of archaea in the family Haloferacaceae.
Sediminibacillus is a genus of bacteria from the family of Bacillaceae. Sediminibacillus species are halophilic bacteria and found in salty human stools and marine sponges. Sediminibacillus species are identified from Plakortis dariae sponge of the Saint Martin's island of the Bay of Bengal, Bangladesh.
Chitinivibrio is an extremely haloalkaliphilic genus of bacteria from the family of Chitinivibrionaceae with one known species. Chitinivibrio alkaliphilus has been isolated from hypersaline lake sediments from Wadi al Natrun in Egypt.
Thermohalobacter is a Gram-negative, thermophilic, strictly halophilic, non-spore-forming anaerobic, rod-shaped and motile genus of bacteria from the family of Clostridiaceae with one known species. Thermohalobacter berrensis has been isolated from a solar saltern.
Halanaerobacter jeridensis is an obligatory anaerobic and moderately halophilic bacterium from the genus of Halanaerobacter which has been isolated from the Jerid lake in Tunisia.
Halanaerobacter salinarius is a halophilic fermentative bacterium from the genus of Halanaerobacter.
References
- ↑ H. J. Liaw & R. A. Mah (January 1992). "Isolation and Characterization of Haloanaerobacter chitinovorans gen. nov., sp. nov., a Halophilic, Anaerobic, Chitinolytic Bacterium from a Solar Saltern". Applied and Environmental Microbiology . 58 (1): 260–266. doi:10.1128/aem.58.1.260-266.1992. PMC 195201 . PMID 16348626.
