نتایج جستجو برای: methylobacterium rhodesianum

تعداد نتایج: 698  

Journal: :International journal of systematic and evolutionary microbiology 2003
Aboubakar S Ouattara Essokazi A Assih Sébastien Thierry Jean-Luc Cayol Marc Labat Oscar Monroy Hervé Macarie

A strictly aerobic, mesophilic bacterium, strain AMX 51(T), was isolated from anaerobic digester sludge. Cells were Gram-negative, motile, non-sporulating, straight to curved rods with one polar flagellum. The isolate had phenotypic traits of the genus Bosea, including cellular fatty acid and substrate utilization profiles. Physiological characteristics and antibiotic susceptibility were determ...

Journal: :Journal of bacteriology 2000
J A Vorholt C J Marx M E Lidstrom R K Thauer

Formaldehyde is toxic for all organisms from bacteria to humans due to its reactivity with biological macromolecules. Organisms that grow aerobically on single-carbon compounds such as methanol and methane face a special challenge in this regard because formaldehyde is a central metabolic intermediate during methylotrophic growth. In the alpha-proteobacterium Methylobacterium extorquens AM1, we...

Journal: :Journal of bacteriology 2004
Ludmila Chistoserdova Markus Laukel Jean-Charles Portais Julia A Vorholt Mary E Lidstrom

Formate dehydrogenase has traditionally been assumed to play an essential role in energy generation during growth on C(1) compounds. However, this assumption has not yet been experimentally tested in methylotrophic bacteria. In this study, a whole-genome analysis approach was used to identify three different formate dehydrogenase systems in the facultative methylotroph Methylobacterium extorque...

Journal: :Journal of bacteriology 2012
Christopher J Marx Françoise Bringel Ludmila Chistoserdova Lionel Moulin Muhammad Farhan Ul Haque Darrell E Fleischman Christelle Gruffaz Philippe Jourand Claudia Knief Ming-Chun Lee Emilie E L Muller Thierry Nadalig Rémi Peyraud Sandro Roselli Lina Russ Lynne A Goodwin Natalia Ivanova Nikos Kyrpides Aurélie Lajus Miriam L Land Claudine Médigue Natalia Mikhailova Matt Nolan Tanja Woyke Sergey Stolyar Julia A Vorholt Stéphane Vuilleumier

The complete and assembled genome sequences were determined for six strains of the alphaproteobacterial genus Methylobacterium, chosen for their key adaptations to different plant-associated niches and environmental constraints.

Journal: :Clinical Microbiology and Infection 1998

2013
Thierry Nadalig Markus Greule Françoise Bringel Stéphane Vuilleumier Frank Keppler

Chloromethane (CH3 Cl) is a widely studied volatile halocarbon involved in the destruction of ozone in the stratosphere. Nevertheless, its global budget still remains debated. Stable isotope analysis is a powerful tool to constrain fluxes of chloromethane between various environmental compartments which involve a multiplicity of sources and sinks, and both biotic and abiotic processes. In this ...

Journal: :FEMS microbiology letters 1998
H Toyama C Anthony M E Lidstrom

Methylobacterium extorquens AM1 is a pink-pigmented facultative methylotroph which is widely used for analyzing pathways of C1 metabolism with biochemical and molecular biological techniques. To facilitate this approach, we have applied a new method to construct insertion or disruption mutants with drug resistance genes by electroporation. By using this method, mutants were obtained in four gen...

2012
Rémi Peyraud Patrick Kiefer Philipp Christen Jean-Charles Portais Julia A. Vorholt

Methylobacterium extorquens AM1 is a facultative methylotrophic Alphaproteobacterium and has been subject to intense study under pure methylotrophic as well as pure heterotrophic growth conditions in the past. Here, we investigated the metabolism of M. extorquens AM1 under mixed substrate conditions, i.e., in the presence of methanol plus succinate. We found that both substrates were co-consume...

Journal: :Journal of bacteriology 2004
Madeline E Rasche Stephanie A Havemann Mariana Rosenzvaig

An enzymatic assay was developed to measure tetrahydromethanopterin (H(4)MPT) levels in wild-type and mutant cells of Methylobacterium extorquens AM1. H(4)MPT was detectable in wild-type cells but not in strains with a mutation of either the orf4 or the dmrA gene, suggesting a role for these two genes in H(4)MPT biosynthesis. The protein encoded by orf4 catalyzed the reaction of ribofuranosylam...

Journal: :International Journal of Systematic and Evolutionary Microbiology 2005

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