Methanosaeta concilii gen. nov., sp. nov. ("Methanothrix concilii") and Methanosaeta thermoacetophila nom. rev., comb. nov.

Patel, G. B.; Sprott, G. Dennis

doi:10.1099/00207713-40-1-79

Cited by 199 publications

(100 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Some of our micrographs also showed possible egress of viral particles (Supplementary Figure S1f- Figure S2a-c). The infected hosts exhibited sheath and flat ends (Supplementary Figure S2c), similar to those typical of the methanogenic species M. concilii (Supplementary Figure S2d) (Patel and Sprott, 1990). Even if there is no certitude about the identity of the infected cell, its tentative affiliation to Methanosaeta, in addition to the morphological similarities, is supported by the data on the occurrence of members of this genus as a dominant archaeal group in the sediments of Lake Pavin (Lehours et al, 2007;Biderre-Petit et al, 2011).…”

Section: Discussionsupporting

confidence: 56%

See 1 more Smart Citation

Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat

et al. 2012

View full text Add to dashboard Cite

Morphological diversity, abundance and community structure of viruses were examined in the deep and anoxic sediments of the volcanic Lake Pavin (France). The sediment core, encompassing 130 years of sedimentation, was subsampled every centimeter. High viral abundances were recorded and correlated to prokaryotic densities. Abundances of viruses and prokaryotes decreased with the depth, contrasting the pattern of virus-to-prokaryote ratio. According to fingerprint analyses, the community structure of viruses, bacteria and archaea gradually changed, and communities of the surface (0-10 cm) could be discriminated from those of the intermediate (11-27 cm) and deep (28-40 cm) sediment layers. Viral morphotypes similar to virions of ubiquitous dsDNA viruses of bacteria were observed. Exceptional morphotypes, previously never reported in freshwater systems, were also detected. Some of these resembled dsDNA viruses of hyperthermophilic and hyperhalophilic archaea. Moreover, unusual types of spherical and cubic virus-like particles (VLPs) were observed. Infected prokaryotic cells were detected in the whole sediment core, and their vertical distribution correlated with both viral and prokaryotic abundances. Pleomorphic ellipsoid VLPs were visible in filamentous cells tentatively identified as representatives of the archaeal genus Methanosaeta, a major group of methane producers on earth.

show abstract

Section: Discussionsupporting

confidence: 56%

“…A culture of the methanogenic species, M. concilii (strain Opfikon ¼ DSM-2139, Patel and Sprott (1990)), was observed by TEM following the procedure described below.…”

Section: Tem Analysesmentioning

confidence: 99%

Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Together with these previous studies, our results suggest the need for further analysis of methylotrophic methanogenesis in the CBM generation in the Ordos Basin. As Methanosaeta can only use acetate as an electron donor (Patel and Sprott, 1990), Methanobacterium is a hydrogenotrophic methanogen (Shlimon et al, 2004) and Methanosarcina metabolizes a wide variety of substrates (Simankova et al, 2003), the detection of the these genera suggests that other methanogenic pathways may also be factors while methylotrophic methanogenesis may be dominant in the Ordos Basin.…”

Section: Discussionmentioning

confidence: 99%

Pyrosequencing reveals the dominance of methylotrophic methanogenesis in a coal bed methane reservoir associated with Eastern Ordos Basin in China

Guo

Liu

et al. 2012

International Journal of Coal Geology

View full text Add to dashboard Cite

a b s t r a c t a r t i c l e i n f oIt is generally believed that biogenic coal bed methane (CBM) is an end product of coal biodegradation by methanogenic archaea and syntrophic bacteria. In this work, the archaeal and bacterial communities of CBM reservoir associated with Ordos Basin in China were investigated using 454 pyrosequencing. Sampling produced water, coal and rock in the reservoir, a total of 46,598 sequence reads were obtained. All archaea were methanogens with the genus Methanolobus predominating. The genus consisted of 81.18% of pyrosequencing reads in water sample and > 99% in coal and rock samples. Although the phylum Proteobacteria was the main component of all samples, bacterial communities in coal and rock samples were similar at the genus level, which were distinctly separated with water sample. The results strongly suggested that methylotrophic methanogenesis governed the biogenic CBM formation. The separation of microbial communities between water and coal, rock samples should be considered when investigating the process of coal biodegradation and the generation of new biogenic CBM.

show abstract

“…To compare and contrast the ecology of MA and SRB, MA in the genus Methanosaeta provide a useful model of a strict metabolic specialist as they utilize acetate as their sole electron donor, electron acceptor and carbon source (Patel and Sprott, 1990). Methanosaeta are thus particularly susceptible to competition from other acetate-utilizing MA (Jetten et al, 1990) and SRB (Ward and Winfrey, 1985).…”

Section: Introductionmentioning

confidence: 99%

Contrasting patterns of niche partitioning between two anaerobic terminal oxidizers of organic matter

Oakley

Carbonero

Dowd³

et al. 2011

The ISME Journal

View full text Add to dashboard Cite

Understanding the ecological principles underlying the structure and function of microbial communities remains an important goal for microbial ecology. We examined two biogeochemically important taxa, the sulfate-reducing bacterial genus, Desulfobulbus, and the methanogenic archaeal genus, Methanosaeta, to compare and contrast niche partitioning by these two taxa that are ecologically linked as anaerobic terminal oxidizers of organic material. An observational approach utilizing functional gene pyrosequencing was combined with a community-based reciprocal incubation experiment and characterization of a novel Desulfobulbus isolate. To analyze the pyrosequencing data, we constructed a data analysis pipeline, which we validated with several control data sets. For both taxa, particular genotypes were clearly associated with certain portions of an estuarine gradient, consistent with habitat or niche partitioning. Methanosaeta genotypes were generally divided between those found almost exclusively in the marine habitat (B30% of operational taxonomic units (OTUs)), and those which were ubiquitously distributed across all or most of the estuary (B70% of OTUs). In contrast to this relatively monotonic distribution, for Desulfobulbus, there were many more genotypes, and their distributions represented a wide range of inferred niche widths from specialist genotypes found only at a single site, to ubiquitous or generalist genotypes found in all 10 sites examined along the full estuarine gradient. Incubation experiments clearly showed that, for both taxa, communities from opposite ends of the estuary did not come to resemble one another, regardless of the chemical environment. Growth of a Desulfobulbus isolated into pure culture indicated that the potential niche of this organism is significantly larger than the realized niche. We concluded that niche partitioning can be an important force structuring microbial populations, with biotic and abiotic components having very different effects depending on the physiology and ecology of each taxon.

show abstract

Methanosaeta concilii gen. nov., sp. nov. ("Methanothrix concilii") and Methanosaeta thermoacetophila nom. rev., comb. nov.

Cited by 199 publications

References 20 publications

Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat

Unexpected and novel putative viruses in the sediments of a deep-dark permanently anoxic freshwater habitat

Pyrosequencing reveals the dominance of methylotrophic methanogenesis in a coal bed methane reservoir associated with Eastern Ordos Basin in China

Contrasting patterns of niche partitioning between two anaerobic terminal oxidizers of organic matter

Contact Info

Product

Resources

About