نتایج جستجو برای: methylotrophic
تعداد نتایج: 990 فیلتر نتایج به سال:
The goal of this study was to identify bacterial populations that assimilated methanol in a denitrifying sequencing batch reactor (SBR), using stable isotope probing (SIP) of (13)C labeled DNA and quantitatively track changes in these populations upon changing the electron donor from methanol to ethanol in the SBR feed. Based on SIP derived (13)C 16S rRNA gene clone libraries, dominant SBR meth...
The methylotrophic proteobacterium Methylobacterium extorquens AM1 possesses tetrahydromethanopterin (H(4)MPT)-dependent enzymes, which are otherwise specific to methanogenic and sulfate-reducing archaea and which have been suggested to be involved in formaldehyde oxidation to CO(2) in M. extorquens AM1. The distribution of H(4)MPT-dependent enzyme activities in cell extracts of methylotrophic ...
The complete genome sequence of Methanohalophilus halophilus DSM 3094T, a member of the Methanosarcinaceae family and the Methanosarcianales order, consists of 2,022,959 bp in one contig and contains 2,137 predicted genes. The genome is consistent with a halophilic methylotrophic anaerobic lifestyle, including the methylotrophic and CO2-H2 methanogensis pathways.
In serine cycle methylotrophs, methylene tetrahydrofolate (H4F) is the entry point of reduced one-carbon compounds into the serine cycle for carbon assimilation during methylotrophic metabolism. In these bacteria, two routes are possible for generating methylene H4F from formaldehyde during methylotrophic growth: one involving the reaction of formaldehyde with H4F to generate methylene H4F and ...
Methylotrophic bacteria able to grow on one-carbon compounds, such as methanol and monomethylamine, as sole carbon sources have received considerable attention because of their potential commercial applications, including the production of single-cell protein, amino acids, pyrroloquinoline quinone, and poly-3-hydroxybutyrate. The utility of methylotrophs should be increased by the use of recomb...
Methylotrophic bacteria are widespread microbes which can use one carbon compound as their only carbon and energy sources. Here we report the finished, annotated genome sequence of the methylotrophic bacterium Methylovorus sp. strain MP688, which was isolated from soil for high-level production of pyrroloquinolone quinone (PQQ) in our lab.
Methanol-consuming culturable bacteria were isolated from the plant surface, rhizosphere, and inside the stem of Neobuxbaumia macrocephala. All 38 isolates were facultative methylotrophic microorganisms. Their classification included the Classes Actinobacteria, Sphingobacteriia, Alpha-, Beta-, and Gammaproteobacteria. The deduced amino acid sequences of methanol dehydrogenase obtained by PCR be...
The application of genetic techniques to the methylotrophic bacteria has greatly enhanced studies of these important organisms. Two methylotrophic systems have been studied in some detail, the serine cycle for formaldehyde assimilation and the methanol oxidation system. In both cases, genes have been cloned and mapped in Methylobacterium species (facultative serine cycle methanol-utilizers). In...
In this paper, we describe the CTA1 gene, which encodes a peroxisomal catalase in the methylotrophic yeast Pichia methanolica. The P. methanolica CTA1 gene (PmCTA1) comprises a 1,530-bp open reading frame corresponding to a protein of 510 amino acid residues, and its deduced amino acid sequence shows high similarity to those of Cta1ps from other methylotrophic yeasts (about 79%). Expression of ...
Although methanol is a widely employed carbon source for denitrification, relatively little is known on the abundance and diversity of methylotrophic bacteria in activated sludge. The primary aim of this study was to specifically identify bacteria that metabolized methanol in a sequencing batch denitrifying reactor (SBDR), using a novel technique, stable isotope probing (SIP) of 13C labeled DNA...
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