Nitrobacter is a genus of mostly rod-shaped, gram-negative, and chemoautotrophic bacteria. Nitrobacter plays an important role in the nitrogen cycle by oxidizing nitrite into nitrate in soil. Unlike plants, where electron transfer in photosynthesis provides the energy for carbon fixation, Nitrobacter uses energy from the oxidation of nitrite ions, NO2−, into nitrate ions, NO3−, to fulfill their energy needs. Nitrobacter fixes carbon dioxide via the Calvin cycle for their carbon requirements.

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dbo:abstract
  • Nitrobacter ist eine Gattung von Bakterien der Familie Bradyrhizobiaceae. Arten dieser Gattung findet man in Böden, Süßwasser und im Meer. Es handelt sich um stäbchenförmige, gramnegative Bakterien, die zum Zweck der Energiegewinnung unter oxischen Bedingungen Nitritionen (NO2−) mit Sauerstoff (O2) zu Nitrationen (NO3−) oxidieren. Sie werden deshalb auch als Nitritoxidierer oder Nitratbakterien bezeichnet. Diese Oxidation ist der zweite Schritt der Nitrifikation. Wie viele andere nitrifizierende Bakterien besitzt Nitrobacter ein inneres Membransystem. In den Membranen ist das Enzym Nitritoxidase lokalisiert, welches die Oxidation von Nitrit zu Nitrat katalysiert. Nitrobacter ist im Gegensatz zu anderen Nitrifizierern nicht obligat chemolithotroph, kann also sowohl CO2 als ausschließliche Kohlenstoffquelle nutzen wie auch organische Stoffe, beispielsweise Acetat und Pyruvat, ist also auch in der Lage, chemoorganotroph zu leben. Die Gattung wurde früher, unter Mikrobiologen umstritten, in die Familie Nitrobacteraceae gestellt. (de)
  • Nitrobacter is a genus of mostly rod-shaped, gram-negative, and chemoautotrophic bacteria. Nitrobacter plays an important role in the nitrogen cycle by oxidizing nitrite into nitrate in soil. Unlike plants, where electron transfer in photosynthesis provides the energy for carbon fixation, Nitrobacter uses energy from the oxidation of nitrite ions, NO2−, into nitrate ions, NO3−, to fulfill their energy needs. Nitrobacter fixes carbon dioxide via the Calvin cycle for their carbon requirements. Nitrobacter have an optimum pH between 7.3 and 7.5, and will die in temperatures exceeding 120 °F (49 °C) or below 32 °F (0 °C). Some sources regard Nitrobacteraceae to be the family of the genus Nitrobacter.Species in the genus Nitrobacter include Nitrobacter winogradskyi, Nitrobacter hamburgensis, Nitrobacter vulgaris and Nitrobacter alkalicus.According to Grundmann, Nitrobacter seem to grow optimally at 38 °C and at a pH of 7.9, but Holt states that Nitrobacter grow optimally at 28 °C and grows within a pH range of 5.8 -8.5 and has an pH optima between 7.6 and 7.8. Nitrobacter belongs to the α-subclass of the Proteobacteria. Nitrobacter may either be rod shaped, pear-shaped or pleomorphic. Cells normally reproduce by budding (Holt, 1993). Carboxysomes which aid carbon fixation are found in lithoautotrophically and mixotrophically grown cells. Additional energy conserving inclusions are PHB granules and polyphosphates. When both nitrite and organic substances are present, cells can exhibit biphasic growth, first the nitrite is used and after a lag phase, organic matter is oxidized. Chemoorganotrophic growth is slow and unbalanced thus more poly-β- hydroxybutyrate granules are seen that distort the shape and size of the cells. Nitrobacter play an essential role in aquaponics. Nitrosomonas bacteria first convert ammonia into nitrites. Nitrobacter convert the nitrites into nitrates, which are readily absorbed by the plants. (en)
  • Nitrobacter es un género de bacterias gram negativas, la mayoría de las cuales tiene forma de bastón, se conocen comúnmente como nitrobacterias, y son quimioautotróficas que participan activamente en el ciclo del nitrógeno.. (es)
  • NitrobacterFichier:Defaut 2.svg Genre NitrobacterVinogradski, 1892 Nitrobacter est un genre de bactérie principalement en forme de bâtonnet, gram négatif et chimioautotrophe de la famille des Bradyrhizobiaceae. (fr)
  • I Nitrobacter sono ceppi di batteri specializzati nella trasformazione dei Nitriti in Nitrati nelle fasi della trasformazione dell'ammonio nel ciclo d'azoto. La presenza di ossigeno fa sviluppare batteri aerobi utili (Nitrosomonas) alla trasformazione della Ammoniaca in Nitriti (NO2-) e altri batteri aerobi utili (Nitrobacter) che trasformano i Nitriti (NO2-) in Nitrati (NO3-), questo processo di trasformazione è parte del cosiddetto ciclo dell'azoto. I Nitrobacter, così come i Nitrosonomas, fanno parte degli Eubacteria, una delle divisioni del regno dei Prokaryota.Questi sono batteri chemiolitotrofi autotrofi, ovvero organismi autotrofi che sfruttano l'energia derivante da reazioni chimiche di ossidazione tra sostanze inorganiche (litotrofia) per produrre materia organica. Nitrobacter e Nitrosonomas giocano un ruolo fondamentale per quanto riguarda la fertilità del suolo, essi infatti arricchiscono il terreno di nitrati. (it)
  • ニトロバクター属は土壌や水中に生息する硝酸細菌の一種で、グラム陰性の非芽胞形成通性好気性桿菌。属名は硝酸(nitro)と桿菌(bacter)に因む。 GC比は59から62で亜硝酸を硝酸に酸化することができる。出芽により増殖し、単鞭毛を持ち運動する種もある。化学合成独立栄養生物であるが酢酸やピルビン酸を資化することが可能である。 (ja)
  • Nitrobacter - rodzaj bakterii tlenowych z rodziny Nitrobacteraceae opisany przez Winogradsky'ego w 1892. Uczestniczą w procesach nitryfikacji. (pl)
  • Nitrobacter ou Nitrobactéria é um género de bactérias em forma de bastonete. Desempenham um papel importante no ciclo do azoto, oxidando os nitritos do solo em nitratos: NO2- + ¹/2O2 → NO3- Esta ação é chamada de nitrificação, essencial para decomposição do material orgânico a ser utilizado pelos vegetais. Essa reação também libera energia, que é utilizada no metabolismo da bactéria. O pH ótimo desta bactéria é entre 7,3 e 7,5, e conseguem viver em uma temperatura entre 0 e 49 graus Celsius. (pt)
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  • lightgrey (en)
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  • Nitrobacter
dbp:genusAuthority
  • Winogradsky 1892
dbp:subdivision
  • N. alkalicus
  • N. hamburgensis
  • N. vulgaris
  • N. winogradskyi
dbp:subdivisionRanks
  • Species
dct:subject
rdf:type
rdfs:comment
  • Nitrobacter es un género de bacterias gram negativas, la mayoría de las cuales tiene forma de bastón, se conocen comúnmente como nitrobacterias, y son quimioautotróficas que participan activamente en el ciclo del nitrógeno.. (es)
  • NitrobacterFichier:Defaut 2.svg Genre NitrobacterVinogradski, 1892 Nitrobacter est un genre de bactérie principalement en forme de bâtonnet, gram négatif et chimioautotrophe de la famille des Bradyrhizobiaceae. (fr)
  • ニトロバクター属は土壌や水中に生息する硝酸細菌の一種で、グラム陰性の非芽胞形成通性好気性桿菌。属名は硝酸(nitro)と桿菌(bacter)に因む。 GC比は59から62で亜硝酸を硝酸に酸化することができる。出芽により増殖し、単鞭毛を持ち運動する種もある。化学合成独立栄養生物であるが酢酸やピルビン酸を資化することが可能である。 (ja)
  • Nitrobacter - rodzaj bakterii tlenowych z rodziny Nitrobacteraceae opisany przez Winogradsky'ego w 1892. Uczestniczą w procesach nitryfikacji. (pl)
  • Nitrobacter ou Nitrobactéria é um género de bactérias em forma de bastonete. Desempenham um papel importante no ciclo do azoto, oxidando os nitritos do solo em nitratos: NO2- + ¹/2O2 → NO3- Esta ação é chamada de nitrificação, essencial para decomposição do material orgânico a ser utilizado pelos vegetais. Essa reação também libera energia, que é utilizada no metabolismo da bactéria. O pH ótimo desta bactéria é entre 7,3 e 7,5, e conseguem viver em uma temperatura entre 0 e 49 graus Celsius. (pt)
  • Nitrobacter is a genus of mostly rod-shaped, gram-negative, and chemoautotrophic bacteria. Nitrobacter plays an important role in the nitrogen cycle by oxidizing nitrite into nitrate in soil. Unlike plants, where electron transfer in photosynthesis provides the energy for carbon fixation, Nitrobacter uses energy from the oxidation of nitrite ions, NO2−, into nitrate ions, NO3−, to fulfill their energy needs. Nitrobacter fixes carbon dioxide via the Calvin cycle for their carbon requirements. (en)
  • Nitrobacter ist eine Gattung von Bakterien der Familie Bradyrhizobiaceae. Arten dieser Gattung findet man in Böden, Süßwasser und im Meer. Es handelt sich um stäbchenförmige, gramnegative Bakterien, die zum Zweck der Energiegewinnung unter oxischen Bedingungen Nitritionen (NO2−) mit Sauerstoff (O2) zu Nitrationen (NO3−) oxidieren. Sie werden deshalb auch als Nitritoxidierer oder Nitratbakterien bezeichnet. Diese Oxidation ist der zweite Schritt der Nitrifikation. Wie viele andere nitrifizierende Bakterien besitzt Nitrobacter ein inneres Membransystem. In den Membranen ist das Enzym Nitritoxidase lokalisiert, welches die Oxidation von Nitrit zu Nitrat katalysiert. (de)
  • I Nitrobacter sono ceppi di batteri specializzati nella trasformazione dei Nitriti in Nitrati nelle fasi della trasformazione dell'ammonio nel ciclo d'azoto. La presenza di ossigeno fa sviluppare batteri aerobi utili (Nitrosomonas) alla trasformazione della Ammoniaca in Nitriti (NO2-) e altri batteri aerobi utili (Nitrobacter) che trasformano i Nitriti (NO2-) in Nitrati (NO3-), questo processo di trasformazione è parte del cosiddetto ciclo dell'azoto. (it)
rdfs:label
  • Nitrobacter (de)
  • Nitrobacter (en)
  • Nitrobacter (es)
  • Nitrobacter (it)
  • Nitrobacter (fr)
  • ニトロバクター属 (ja)
  • Nitrobacter (pl)
  • Nitrobacter (pt)
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  • Nitrobacter (en)
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