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Original-"Betaproteobacteria"
Metabolism
[edit]As with other classes of Proteobacteria, the Betaproteobacteria are metabolically very diverse. Some, such as Rhodocyclus can derive energy from sunlight.[1] A number of others can use inorganic compounds to generate energy, such as the economically important members of the Nitrosomonadales which can perform nitrification.[1]
Edit- "Betaproteobacteria"
Metabolism
[edit]As with other classes of Proteobacteria, the Betaproteobacteria are metabolically very diverse.
Some, such as Rhodocyclus can derive energy from sunlight while using organic compounds as carbon sources.[1]
Denitrifiers can use organic compounds such as succinate, glucose, or ethanol as electron donors in a catabolic pathway to reduce nitrate and nitrite into gaseous forms[2]. Proteobacteria from the Burkholderia genus are capable of forming nodules on the roots of legumes[3]. These organisms reduce atmospheric nitrogen as a part of their biosynthetic pathways.
Strains of betaproteobacteria found in very basic environments grow both heterotrophically and autotrophically[4].When growing autotrophically, hydrogen is used as an electron donor for catabolism and oxygen is a used as an electron acceptor for anabolism. A variety of different organic compounds and inorganic electron donors and acceptors are used when these alkaliphilic organisms use autotrophic modes of metabolism.
A number of others can use inorganic compounds to generate energy, such as the economically important members of the Nitrosomonadales which can perform nitrification, a process that includes both catabolism and anabolism.[1]
Malhar97 (talk) 06:57, 9 October 2017 (UTC)
Edit after Peer Review
[edit]Metabolism
[edit]As with other classes of Proteobacteria, the Betaproteobacteria are metabolically very diverse.
Some, such as Rhodocyclus can derive energy from sunlight while using organic compounds as carbon sources.[1]
Denitrifiers can use organic compounds such as succinate, glucose, or ethanol as electron donors in a catabolic pathway to reduce nitrate and nitrite into gaseous forms[2]. Succinate being involved in the TCA cycle, is the preferred source of carbon and electrons for denitrification in aerobic conditions.[2] Proteobacteria from the Burkholderia genus are capable of forming nodules on the roots of legumes[3]. These organisms reduce atmospheric nitrogen as a part of their biosynthetic pathways. This is a symbiotic relationship in which the bacteria gain a carbon source for catabolism and the plant gains fixed nitrogen.
Strains of betaproteobacteria found in very basic environments grow both heterotrophically and autotrophically[4]. When growing autotrophically with CaCO3 as a carbon source, hydrogen is used as an electron donor for catabolism and oxygen is a used as an electron acceptor for anabolism. When these alkaliphilic organisms use autotrophic modes of metabolism, a variety of different organic as well as inorganic electron donors and acceptors are used.
A number of others can use inorganic compounds to generate energy, such as the economically important members of the Nitrosomonadales which can perform nitrification, a process that includes both catabolism and anabolism.[1]
Malhar97 (talk) 07:30, 20 October 2017 (UTC)
- ^ a b c d e f Slonczewski JL, Foster JW (2014). Microbiology: An Evolving Science (3 ed.). W. W. Norton & Company. pp. 742–3. ISBN 9780393123678.
- ^ a b c Saito, Takayuki; Ishii, Satoshi; Otsuka, Shigeto; Nishiyama, Masaya; Senoo, Keishi (2008). "Identification of Novel Betaproteobacteria in a Succinate-Assimilating Population in Denitrifying Rice Paddy Soil by Using Stable Isotope Probing". Microbes and Environments. 23 (3): 192–200. doi:10.1264/jsme2.23.192.
- ^ a b Gyaneshwar, Prasad; Hirsch, Ann M.; Moulin, Lionel; Chen, Wen-Ming; Elliott, Geoffrey N.; Bontemps, Cyril; Estrada-de los Santos, Paulina; Gross, Eduardo; dos Reis, Fabio Bueno (2011-08-10). "Legume-Nodulating Betaproteobacteria: Diversity, Host Range, and Future Prospects". Molecular Plant-Microbe Interactions. 24 (11): 1276–1288. doi:10.1094/MPMI-06-11-0172. ISSN 0894-0282.
- ^ a b Suzuki, Shino; Kuenen, J. Gijs; Schipper, Kira; Velde, Suzanne van der; Ishii, Shun’ichi; Wu, Angela; Sorokin, Dimitry Y.; Tenney, Aaron; Meng, XianYing (2014-05-21). "Physiological and genomic features of highly alkaliphilic hydrogen-utilizing Betaproteobacteria from a continental serpentinizing site". Nature Communications. 5: ncomms4900. doi:10.1038/ncomms4900.