ライフサイエンスコーパス: methanogen

1 oil metagenome, which corresponds to a novel methanogen.

2 hydrogen availability for a hydrogenotrophic methanogen.

3 lower than that of any previously described methanogen.

4 ding two halophiles, two Thermoplasma, and a methanogen.

5 st operate during expression of mtmB in this methanogen.

6 d the genus Anaerobranca provide acetate for methanogen.

7 ation for cold adaptation in a psychrophilic methanogen.

8 es which usually contain both fermenters and methanogens.

9 consumption of water-derived H(2) like other methanogens.

10 bably due to increased carbon substrates for Methanogens.

11 vity of this as well as other enzymes in the methanogens.

12 ain architecture unique to a select group of methanogens.

13 yarchaeota and was significantly enriched in methanogens.

14 mental unambiguous trace metal biomarker for methanogens.

15 tronarchaeia' from all known methyl-reducing methanogens.

16 tic terrestrial samples and pure cultures of methanogens.

17 Methanobacteriales, which are H(2)-oxidizing methanogens.

18 indispensable and fundamental function(s) in methanogens.

19 ilization of produced H2 by hydrogenotrophic methanogens.

20 Sulfite is inhibitory to the methanogens.

21 , two strictly hydrogenotrophic thermophilic methanogens.

22 leri consistently groups with other archaeal methanogens.

23 g UAG amber codons as pyrrolysine in certain methanogens.

24 essential in methane-forming pathways in all methanogens.

25 t are found in some extreme thermophiles and methanogens.

26 nergy-conserving electron transfer system in methanogens.

27 within the nif gene cluster of diazotrophic methanogens.

28 hat are phylogenetically distinct from known methanogens.

29 transcription may be a common occurrence in methanogens.

30 ity with those of peptides of SHMTs from two methanogens.

31 ction of H2, the "fuel" for hydrogenotrophic methanogens.

32 ways to facilitate interactions with partner methanogens.

33 entatives of the AD-associated syntrophs and methanogens.

34 genotrophic (Methanoregula and Methanolinea) methanogens.

35 NA(Cys) to cysteinyl-tRNA(Cys) in nearly all methanogens.

36 the biosynthesis of aromatic amino acids in methanogens.

37 dizing acetogens and carbon dioxide-reducing methanogens.

38 rst in clostridia and later in acetogens and methanogens.

39 es suggested that Trx is nearly universal in methanogens.

40 Notably, methanogen 16S rRNA signatures were absent in all Illumi

41 In ancestral methanogens, a third protein SepCysE forms a bridge betw

42 stry of strict anaerobes such as clostridia, methanogens, acetogens, and sulfate-reducing bacteria an

43 pecies-level taxa positively correlated with methanogens: all but two were members of the Clostridial

44 inage substantially lowered the abundance of methanogens along with methanotrophic bacteria, which ma

45 ly attributable to the decreased activity of methanogens along with the increased CH4 oxidation activ

46 nd Fe-dinitrogenases and suggested that most methanogens also have molybdenum-type nitrogenases.

47 lyzes the Sep-tRNA to Cys-tRNA conversion in methanogens, also possess a [3Fe-4S] cluster similar to

48 ining characteristic of the hydrogenotrophic methanogens, an ancient group that dominates the phylum

49 ents new research avenues for this forgotten methanogen and reminds us of the questions that still re

50 suggested that a Methanothermobacter-related methanogen and synergistetes- and thermotogae-related ba

51 Hydrogenotrophic methanogens and Acidobacteria dominated the bog shifting

52 CH4 production derived from pure cultures of methanogens and anaerobic microbial communities.

53 local carbon cycling, depending on how these methanogens and associated microbial communities respond

54 ase (ACDS) is a multienzyme complex found in methanogens and certain other Archaea that carries out t

55 as that found in part in other diazotrophic methanogens and except for the presence of the glnB-like

56 Many archaeal sequences (methanogens and halophiles) tend to align best with the

57 Coenzyme F420 is a redox cofactor found in methanogens and in various actinobacteria.

58 Percent abundances of methanogens and iron-reducing bacteria correlated with i

59 quencing demonstrated a similar abundance of methanogens and methanogenesis pathway genes in high and

60 Although the existence of both methanogens and methanotrophs has been inferred from bul

61 The presence of DFTR exclusively in ancient methanogens and mostly in the early Earth environment of

62 y related genes occur in the genomes of some methanogens and other anaerobic bacteria, which are also

63 Methanogens and reductive acetogens correlated with detr

64 hic conditions are typically supported by H2 Methanogens and sulfate reducers, and the respective ene

65 the relatively low abundance and activity of methanogens and sulfate reducers.

66 The increase of hydrogenotrophic methanogens and syntrophic Desulfovibrio and the decreas

67 the CO(2) reduction pathway are confined to methanogens and the domain Archaea.

68 core genes found in genomes of all sequenced methanogens and the phylogenetic position, we hypothesiz

69 ed to stimulate gas recovery could stimulate methanogens and their rate of producing methane.

70 crop growth as well as alter CH 4 producing (Methanogens) and consuming (Methanotrophs) microbes, and

71 is present in both methylotrophs and complex methanogens, and both the MEDS and PocR domains show a l

72 microbial richness, exhaled CH4, presence of methanogens, and enterotypes enriched with Clostridiales

73 :CO(2) oxidoreductase activity in acetogens, methanogens, and some CO-using bacteria.

74 rinating populations (fermenters, acetogens, methanogens, and sulfate reducers) were assessed via qua

75 nd iron- (FeRB) reducing bacteria, including methanogens, and syntrophic, acetogenic, and fermentativ

76 teine and its incorporation into proteins in methanogens, and the first experimental validation of th

77 Methanogens are antibiotic-resistant anaerobic archaea t

78 These methanogens are heterotrophic methyl-reducers that use C

79 This study explores whether those methanogens are indigenous to the shale or are introduce

80 These findings indicate that archaeal methanogens are monophyletic.

81 We hypothesized that methanogens are part of the anaerobic community that cau

82 Contemporary methanogens are restricted to anaerobic habitats and may

83 terial uidA transcript was translated in the methanogen as pyrrolysine with 20% efficiency, suggestin

84 and had a greater proportion of Bacteria and methanogens, as measured by quantitative polymerase chai

85 In contrast, methanogens assimilate the light isotopes, yielding resi

86 owing: (i) the pure culture cultivation of a methanogen at an ultralow, near ecologically relevant p(

87 and energy resource generated dominantly by methanogens at low temperatures and through the breakdow

88 l population showed significant increases in methanogens at the later stages of treatment that correl

89 ons and contained various thermal classes of methanogens based on cultivation and mcrA/mrtA analyses.

90 Methanogens belong to the anaerobic community responsibl

91 d that the DapL pathway is present in marine methanogens belonging to the Methanococcales.

92 The methanogen beta subunit A-cluster is proposed to consist

93 zyme family supports the hypothesis that the methanogens branched from other prokaryotes and eukaryot

94 ococcus lineage (which is the deepest of the methanogen branchings) and that of Thermococcus (the dee

95 experiments showed that CO was inhibitory to methanogens, but not to bacteria, at CO partial pressure

96 ition, we hypothesize that the MSBL1 are not methanogens, but probably sugar-fermenting organisms cap

97 Abundance of the methanogen Candidatus 'Methanoflorens stordalenmirensis'

98 f methanogens in these peatlands, indigenous methanogens capable of growth at acidic pH values have r

99 The concordance rate for methanogen carriage was significantly higher for MZ vers

100 Methanogens catalyze the critical methane-producing step

101 lysaccharide and flocculation of heterotroph-methanogen cellular aggregates.

102 These methanogens charge tRNA(Cys) with l-phosphoserine, which

103 sis of 16S rRNA gene sequences revealed that methanogens closely related to Candidatus 'Methanofloren

104 Spikes of excess methanogens coincident with CH(4) spikes are found at th

105 ogeochemistry, examine relationships between methanogen community structure and CH4 dynamics in situ,

106 Three possible methanogen consensus BoxA sequences as well as two sets

107 es in the Witwatersrand Basin, South Africa, methanogens contribute <5% of the total DNA and appear t

108 The results indicate that a methanogen couples motility to hydrogen concentration se

109 a acetivorans C2A, a metabolically versatile methanogen devoid of significant hydrogen metabolism, to

110 coccus that have not been widely used in the methanogens: directed mutagenesis and reporter gene fusi

111 f metabolic intermediates, with Bacteria and methanogens distributed throughout the length of the col

112 Consistent with this hypothesis, methanogens do not utilize sulfate as a sulfur source, C

113 Specifically, syntrophs and methanogens dominant in raw water (RW) disappeared after

114 arbon, is the primary energy source for this methanogen-dominated microbial community.

115 eams, and (4) understanding methanotroph and methanogen ecology.

116 The finding of an abundance of anaerobic methanogens enriched at the surface where oxygen levels

117 of three basic phenotypes: they were either methanogens, extreme halophiles, or ('sulphur-dependent'

118 bial communities on Mars and Europa in which methanogens form the base of the ecosystem.

119 cteria 'syntrophs' and methanogenic Archaea 'methanogens' form a unique metabolic interaction to acco

120 annaschii--a deeply rooted hyperthermophilic methanogen growing only on H2 plus CO2.

121 tral reaction of acetyl C-C bond cleavage in methanogens growing on acetate and is also responsible f

122 he slow EVO hydrolysis and acetate-utilizing methanogens growth could contribute to longer term biore

123 vanced genetic techniques are available--the methanogens, halophiles, Sulfolobales, and Thermococcale

124 dian lengths of 20-40 nt), 51% mRNAs of this methanogen have large 5' UTR (>50 nt).

125 liquid product separation and persistence of methanogens, have prevented the production of bioproduct

126 A fast growing hydrogenotrophic methanogen (i.e., Methanoculleus bourgensis MS2(T)) was

127 mmunity data for AD, the known syntrophs and methanogens identified were clearly representatives of t

128 added to the model for both DHC and the main methanogen in the culture (a Methanosaeta species) to pr

129 phic acetate oxidation with hydrogenotrophic methanogens in absence of aceticlastic methanogenesis.

130 Third, iron-reducing bacteria co-occur with methanogens in Arctic soils, and iron-reduction-mediated

131 m MS is forwarded here by its application to methanogens in both hypothesis-driven and discovery mode

132 The results suggest that Trx assists methanogens in combating oxidative stress and synchroniz

133 he proposed dominant role of CO(2) -reducing methanogens in crude oil biodegradation.

134 We quantified methanogens in fecal samples from 40 healthy adult femal

135 a deep phylogenetic lineage of extremophilic methanogens in hypersaline lakes and present analysis of

136 However, methanogens in produced fluids and isotopic signatures o

137 ogens present in shale cores were similar to methanogens in produced fluids.

138 e anode and ferementers and hydrogenotrophic methanogens in suspension.

139 Despite the ubiquity of methanogens in these peatlands, indigenous methanogens c

140 ns (a proxy for cells) and F420 (a proxy for methanogens) in ice cores, we find isolated spikes of fl

141 3), and metagenomics yielded archaea, mostly methanogens, in 28/32 brain abscess samples, and no arch

142 that the genome of M. thermoautotrophicum, a methanogen incapable of growth on formate, lacked the fd

143 ed culture and isolation; these recalcitrant methanogens include members of an uncultured family-leve

144 hree main groups of H(2)-consuming microbes: methanogens including the dominant archaeon, Methanobrev

145 sulfovibrio and the decrease of aceticlastic methanogens indicate a H2-mediated shift toward the hydr

146 stributions of sulfate reducing bacteria and methanogens indicate energy-based selection typical of a

147 So far, methanogens inhabiting hypersaline environments have bee

148 thanogenesis in arsenic volatilization using methanogen inhibitors.

149 a strictly anaerobic, chemolithoautotrophic methanogen into the heterotrophic, oxygen-respiring, and

150 for sulfide assimilation and trafficking in methanogens is largely unknown.

151 Methane biogenesis in methanogens is mediated by methyl-coenzyme M reductase,

152 The pathogenesis of a methanogen isolate was assessed in a mouse model.

153 ane emissions and a decrease in rhizospheric methanogen levels.

154 anopterin biosynthesis has been described in methanogens, little is known about the enzymes and genes

155 m the obligately anaerobic hyperthermophilic methanogen M. jannaschii.

156 he protein mapper and in 1.9 microl with the methanogen mapper.

157 time of emergence and diversification, early methanogens may have caused global cooling via the conve

158 Here, we demonstrate that NifB from the methanogen Methanocaldococcus infernus is a radical SAM

159 The MJ1003 and MJ1271 proteins from the methanogen Methanocaldococcus jannaschii formed the firs

160 ily member encoded by the MJ0619 gene in the methanogen Methanocaldococcus jannaschii is likely this

161 of archaeal G1PDH from the hyperthermophilic methanogen Methanocaldococcus jannaschii with bound subs

162 led biochemical examination of DHNA from the methanogen Methanocaldococcus jannaschii.

163 d in a non-nitrogen-fixing hyperthermophilic methanogen, Methanocaldococcus jannaschii.

164 ng genes from several archaea, including the methanogen Methanococcus jannaschii and the sulfate-redu

165 The genome sequence of the hyperthermophilic methanogen Methanococcus jannaschii contains homologs of

166 me containing two 36.2-kDa subunits from the methanogen Methanococcus jannaschii.

167 recombinant FtsZ from the hyperthermophilic methanogen Methanococcus jannaschii.

168 ial pathways of H(2) metabolism in the model methanogen Methanococcus maripaludis and using formate a

169 ally tractable, mesophilic, hydrogenotrophic methanogen Methanococcus maripaludis contains 1,722 prot

170 espiration to syntrophic conditions with the methanogen Methanococcus maripaludis.

171 cterium salinarum NRC-1), a hydrogenotrophic methanogen (Methanococcus maripaludis S2), an acidophili

172 i (Hvo); and a hyperthermophilic piezophilic methanogen, Methanococcus jannaschii (Mja).

173 irection of a source of hydrogen gas for the methanogen, Methanococcus maripaludis using a capillary

174 a protein complex from the hydrogenotrophic methanogen, Methanococcus maripaludis, that contains het

175 tion of methanogenesis in a hydrogenotrophic methanogen, Methanococcus maripaludis.

176 tion start sites (TSSs) of the psychrophilic methanogen Methanolobus psychrophilus R15 and its respon

177 ded with n-alkanes, whereas hydrogenotrophic methanogens (Methanomicrobiales) were enriched with BTEX

178 ed reverse gyrase from the hyperthermophilic methanogen Methanopyrus kandleri is the only known examp

179 nces affiliated with cultivated acetoclastic methanogens (Methanosaetaceae) were enriched in cultures

180 ernix, and MaPgb from the strictly anaerobic methanogen Methanosarcina acetivorans.

181 ction of all three enzymes in the mesophilic methanogen Methanosarcina mazei.

182 lete genome sequence of an acetate-utilizing methanogen, Methanosarcina acetivorans C2A.

183 CD were coexpressed with mtmB1, encoding the methanogen monomethylamine methyltransferase, UAG was tr

184 Many archaea (including all the methanogens, nearly all euryarchaeotes, and some crenarc

185 ulations of known syntrophs (six clades) and methanogens (nine clades) associated with acid degradati

186 bacterial alternative nitrogenases and other methanogen nitrogenases.

187 ethanocaldococcus jannaschii as well as most methanogens, none of the expected enzymes for the biosyn

188 ic growth on lactate with a hydrogenotrophic methanogen, numerous genes involved in electron transfer

189 groups from most reducing to most oxidizing: methanogens, obligate anaerobes (nonmethanogenic), facul

190 ability (as controlled by dilution rate) and methanogen on the electron transfer systems, ratios of i

191 vergence that has occurred between these two methanogens; only 352 (19%) of M. thermoautotrophicum OR

192 y mediated by several organisms, including a methanogen (operating in reverse) and a sulphate-reducer

193 We hypothesize that methanogens participate in syntrophic relationships in t

194 rime genes of photosynthesis are PHX, and in methanogens, PHX genes include those essential for metha

195 ate, strain MG, was a H(2) :CO(2) -utilizing methanogen, phylogenetically affiliated with the genus M

196 Methanogens present in shale cores were similar to metha

197 A putative methanogen promoter preceded ilvB-ilvN, and a potential

198 Extant methanogens react H2 with CO2 to form methane.

199 ery of extremely halophilic, methyl-reducing methanogens related to haloarchaea provides insights int

200 Methanogens represent some of the most oxygen-sensitive

201 -tRNA biosynthesis and Cys-tRNA synthesis in methanogens require O-phosophoseryl-tRNA formation.

202 Surprisingly, methanogens revealed a very versatile behavior different

203 samples to identify taxa that co-occur with methanogens, sequenced the genomes of 20 M. smithii stra

204 coccus (the deepest of all branchings on the methanogen side of the tree).

205 the first near-complete genomes for a novel methanogen species, and show acetoclastic production fro

206 We used the methanogen-specific phylogenetic marker mcrA to perform

207 The hydrogenotrophic methanogen strain MG enhanced fatty acid production by f

208 ygen-respiring heterotrophs that derive from methanogens--strictly anaerobic, hydrogen-dependent auto

209 ing the relationship of Archaeoglobus to the methanogens studied.

210 owing energetic coupling to hydrogenotrophic methanogens such as Methanoculleus.

211 roof that Asp-tRNA(Asn) was generated by the methanogen synthetase was the conversion of Asp-tRNA for

212 limited insights into symbiotic syntroph and methanogen ('syntrophy') acid degradation, although they

213 ctions centered on Hdr in a hydrogenotrophic methanogen that utilizes multiple electron donors for gr

214 hat the hypolimnion comprised communities of methanogens that are distinct from those in the sediment

215 lum Euryarchaeota includes diverse groups of methanogens that are interspersed with non-methanogenic

216 form cysteinyl-tRNA(Cys) (Cys-tRNA(Cys)) in methanogens that lack the canonical cysteinyl-tRNA synth

217 plex catalyzes the cleavage of acetyl-CoA in methanogens that metabolize acetate to CO(2) and CH(4),

218 Ancient methanogens that produce methane almost exclusively from

219 f Syto-23-stained cells tracks the excess of methanogens that we identified by their F420 autofluores

220 recently suggested that in hydrogenotrophic methanogens the energy of heterodisulfide reduction powe

221 In methanogens, the acetyl-CoA decarbonylase synthase (ACDS

222 genes coding for NflH and NflD in all known methanogens, their constitutive expression, and their hi

223 sarcineae are the most metabolically diverse methanogens, thrive in a broad range of environments, an

224 s portucalensis FDF1(T) is a model anaerobic methanogen to study the acclimation of water-deficit str

225 sulfate reduction and the marginalization of methanogens to anoxic and sulfate-poor niches.

226 lowed uncultured syntrophic metabolizers and methanogens to be optimally grown and studied biochemica

227 is and shows that the strategies employed by methanogens to thrive in salt-saturating conditions are

228 Methanogens use an unusual energy-conserving electron tr

229 the fermentation step, instead of inhibiting methanogens using expensive or toxic chemical inhibitors

230 Interestingly, alpha-diversity of the methanogens was positively correlated with PMP, while be

231 tmosphere to the production rate by possible methanogens, we estimate that a possible Martian habitat

232 No methanogens were detected in injected fluids, suggesting

233 Methanogens were investigated in 1 index sample using sp

234 ted that sulfate-reducing bacteria (SRB) and methanogens were key methylators.

235 At Endeavour, methanogens were largely undetectable in fluid samples b

236 Fecal methanogens were measured by quantitative polymerase cha

237 asmic HdrABC enzyme complex is found in most methanogens, whereas a membrane-bound HdrED complex is f

238 n of CH4 and associated energy conversion by methanogens, whereas the major thiol in the aerobic phot

239 e reducers, anaerobic methane oxidizers, and methanogens, which each comprise <5% of the total commun

240 usion to the anode side caused inhibition of methanogens, which led to the decrease in chemical oxyge

241 ese results identify a discrete set of rumen methanogens whose methanogenesis pathway transcription p

242 Methanogens with diverse metabolisms were detected acros

243 ere may be high functional redundancy in the methanogens with regard to methane production.

244 recently reported between methylotrophs, and methanogens with respect to their pathways for C(1)-unit

245 study focusing on the community structure of methanogens within the sediment and anoxic hypolimnion w

246 For methanogens without cytochromes, flavin-based electron b