New aerobic ammonium-dependent obligately oxalotrophic bacteria: description of Ammoniphilus oxalaticus gen. nov., sp. nov. and Ammoniphilus oxalivorans gen. nov., sp. nov

International Journal of Systematic Bacteriology
G M ZaitsevM S Salkinoja-Salonen

Abstract

The genus Ammoniphilus is proposed for aerobic endospore-forming Gram-variable rod-shaped bacteria, which are ammonium-dependent, obligately oxalotrophic and haloalkalitolerant, oxidase- and catalase-positive, mesophilic and motile by peritrichous flagella. Cell wall contained two electron-dense layers. The external layer consists of a chain of electron-dense granules morphologically resembling the cellulosomes of Clostridium thermocellum. Two species are described, Ammoniphilus oxalaticus gen. nov., sp. nov. and Ammoniphilus oxalivorans gen. nov., sp. nov. The type strains of these species are strains RAOx-1 (= DSM 11538) and RAOx-FS (= DSM 11537), respectively. Ammoniphilus strains were isolated from the rhizosphere of sorrel (Rumex acetosa) and from decaying wood. The strains require a high concentration of ammonium ions and use oxalate as the sole organic source of carbon and energy for growth; no growth factors were required. Growth occurred at pH 6.8-9.5. The optimum temperature and pH for growth were 28-30 degrees C and 8.0-8.5. All strains grew in a saturated solution of ammonium oxalate, and tolerated 3% NaCl. Whole-cell hydrolysates contain meso-diaminopimelic acid and glucose. The menaquinone of the strains was MK 7,...Continue Reading

Citations

Aug 2, 2003·Research in Microbiology·Nurettin Sahin
Jan 11, 2016·World Journal of Microbiology & Biotechnology·Vincent HervéPilar Junier
Sep 29, 2004·FEMS Microbiology Reviews·Volker GürtlerRobert Seviour
Sep 30, 2014·Acta Microbiologica Et Immunologica Hungarica·Dóra AndaAndrea K Borsodi
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May 7, 2016·International Journal of Systematic and Evolutionary Microbiology·Shih-Yao LinChiu-Chung Young
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Aug 9, 2017·International Journal of Systematic and Evolutionary Microbiology·Wen-Rui CaoTie-Gang Li
Oct 18, 2019·International Journal of Systematic and Evolutionary Microbiology·Rou-Wen ChenLi-Juan Long
Oct 3, 1999·Applied and Environmental Microbiology·M S Salkinoja-SalonenA C Scoging

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