Petrotoga olearia sp. nov. and Petrotoga sibirica sp. nov., two thermophilic bacteria isolated from a continental petroleum reservoir in Western Siberia.

L’Haridon, Stéphane; Miroshnichenko, M. L.; Hippe, Hans; Fardeau, Marie Laure; Bonch-Osmolovskaya, E.; Stackebrandt, Erko; Jeanthon, Christian

doi:10.1099/00207713-52-5-1715

Cited by 27 publications

(19 citation statements)

References 43 publications

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“…It was classified as a Petrotoga specie within the phylum Thermotogae. Typically Petrotoga species are strictly anaerobic fermentative bacteria that can oxidise sugars and some polymers during energy metabolism to produce lactate, acetate, CO 2 and H 2 as metabolites (Lien et al 1998;L'Haridon et al 2002;Miranda-Tello et al 2004;Miranda-Tello et al 2007). Most members of this phylum that have been isolated to date are tough thermophiles recovered from deep oil reservoirs, and have adapted to this harsh environment with a sheath-like outer structure that helps them resist environmental stress (Miranda-Tello et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Biogeochemical Reduction Processes in a Hyper-Alkaline Leachate Affected Soil Profile

Burke

Mortimer

Palaniyandi

et al. 2012

Geomicrobiology Journal

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Hyperalkaline surface environments can occur naturally or because of contamination by hydroxide-rich wastes. The high pH produced in these areas has the potential to lead to highly specialised microbial communities and unusual biogeochemical processes. This paper reports an investigation into the geochemical processes that are occurring in a buried, saturated, organicrich soil layer at pH 12.3. The soil has been trapped beneath calcite precipitate (tufa) that is accumulating where highly alkaline leachate from a lime kiln waste tip is emerging to atmosphere. A population of anaerobic alkaliphilic bacteria dominated by a single, unidentified species within the Comamonadaceae family of -proteobacteria has established itself near the top of the soil layer. This bacterial population appears to be capable of nitrate reduction using electron donors derived from the soil organic matter. Below the zone of nitrate reduction a significant proportion of the 0.5N HCl extractable iron (a proxy for microbial available iron) is in the Fe(II) oxidation state indicating there is increasing anoxia with depth and suggesting that microbial iron reduction is occurring.

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Section: Discussionmentioning

confidence: 99%

Biogeochemical Reduction Processes in a Hyper-Alkaline Leachate Affected Soil Profile

Burke

Mortimer

Palaniyandi

et al. 2012

Geomicrobiology Journal

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“…Strains SL24 and SL25 were phylogenetically most closely related to Petrotoga miotherma (99.4 and 98.9% similarity, respectively). However, several phenotypic properties and DNA-DNA hybridization experiments indicated that both of the strains SL24 and SL25 merit the rank of a new species (25).…”

Section: Physicochemical Characteristics Of the Samotlor Oil Fieldmentioning

confidence: 99%

Radioisotopic, Culture-Based, and Oligonucleotide Microchip Analyses of Thermophilic Microbial Communities in a Continental High-Temperature Petroleum Reservoir

Bonch-Osmolovskaya

Miroshnichenko

Lebedinsky

et al. 2003

Appl Environ Microbiol

169

108

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Activity measurements by radioisotopic methods and cultural and molecular approaches were used in parallel to investigate the microbial biodiversity and its physiological potential in formation waters of the Samotlor high-temperature oil reservoir (Western Siberia, Russia). Sulfate reduction with rates not exceeding 20 nmol of H 2 S liter ؊1 day ؊1 occurred at 60 and 80°C. In upper horizons (AB, A, and B), methanogenesis (lithotrophic and/or acetoclastic) was detected only in wells in which sulfate reduction did not occur. In some of the wells from deeper (J) horizons, high-temperature sulfate reduction and methanogenesis occurred simultaneously, the rate of lithotrophic methanogenesis exceeding 80 nmol of CH 4 liter ؊1 day ؊1 . Enrichment cultures indicated the presence of diverse physiological groups representing aerobic and anaerobic thermophiles and hyperthermophiles; fermentative organotrophs were predominant. Phylogenetic analyses of 15 isolates identified representatives of the genera Thermotoga, Thermoanaerobacter, Geobacillus, Petrotoga, Thermosipho, and Thermococcus, the latter four being represented by new species. Except for Thermosipho, the isolates were members of genera recovered earlier from similar habitats. DNA obtained from three samples was hybridized with a set of oligonucleotide probes targeting selected microbial groups encompassing key genera of thermophilic bacteria and archaea. Oligonucleotide microchip analyses confirmed the cultural data but also revealed the presence of several groups of microorganisms that escaped cultivation, among them representatives of the Aquificales/Desulfurobacterium-Thermovibrio cluster and of the genera Desulfurococcus and Thermus, up to now unknown in this habitat. The unexpected presence of these organisms suggests that their distribution may be much wider than suspected.

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“…One species, Thermotoga lettingae, and many 16S rRNA gene sequences from members of the Thermotogales have been detected in both high-and low-temperature anaerobic waste digesters and contaminated sediments (Balk et al, 2002;Briones et al, 2007;Chouari et al, 2005;Nesbø et al, 2006;and references therein). Additionally, several genera and the majority of described species of the Thermotogales have been detected in oil reservoirs and oil production fluids throughout the world (Davey et al, 1993;Fardeau et al, 1997;L'Haridon et al, 2001L'Haridon et al, , 2002Lien et al, 1998;Magot et al, 2000;Miranda-Tello et al, 2004;Orphan et al, 2000;Ravot et al, 1995;Takahata et al, 2001). The quantity and diversity of sequences of members of the Thermotogales that have been detected in oil reservoirs suggest that these organisms may play important roles in these environments (Grassia et al, 1996;Li et al, 2006Li et al, , 2007Magot et al, 2000).…”

mentioning

confidence: 99%

Kosmotoga olearia gen. nov., sp. nov., a thermophilic, anaerobic heterotroph isolated from an oil production fluid

DiPippo

Nesbø

Dahle

et al. 2009

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLO

115

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Petrotoga olearia sp. nov. and Petrotoga sibirica sp. nov., two thermophilic bacteria isolated from a continental petroleum reservoir in Western Siberia.

Cited by 27 publications

References 43 publications

Biogeochemical Reduction Processes in a Hyper-Alkaline Leachate Affected Soil Profile

Biogeochemical Reduction Processes in a Hyper-Alkaline Leachate Affected Soil Profile

Radioisotopic, Culture-Based, and Oligonucleotide Microchip Analyses of Thermophilic Microbial Communities in a Continental High-Temperature Petroleum Reservoir

Kosmotoga olearia gen. nov., sp. nov., a thermophilic, anaerobic heterotroph isolated from an oil production fluid

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