Base de dados : MEDLINE
Pesquisa : B02.200.705.500 [Categoria DeCS]
Referências encontradas : 106 [refinar]
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  1 / 106 MEDLINE  
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[PMID]:28982164
[Au] Autor:Bang C; Vierbuchen T; Gutsmann T; Heine H; Schmitz RA
[Ad] Endereço:Institute for General Microbiology, Christian-Albrechts-University Kiel, Kiel, Germany.
[Ti] Título:Immunogenic properties of the human gut-associated archaeon Methanomassiliicoccus luminyensis and its susceptibility to antimicrobial peptides.
[So] Source:PLoS One;12(10):e0185919, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The methanogenic archaeon Methanomassiliicoccus luminyensis strain B10T was isolated from human feces just a few years ago. Due to its remarkable metabolic properties, particularly the degradation of trimethylamines, this strain was supposed to be used as "Archaebiotic" during metabolic disorders of the human intestine. However, there is still no data published regarding adaptations to the natural habitat of M. luminyensis as it has been shown for the other two reported mucosa-associated methanoarchaea. This study aimed at unraveling susceptibility of M. luminyensis to antimicrobial peptides as well as its immunogenicity. By using the established microtiter plate assay adapted to the anaerobic growth requirements of methanogenic archaea, we demonstrated that M. luminyensis is highly sensitive against LL32, a derivative of human cathelicidin (MIC = 2 µM). However, the strain was highly resistant against the porcine lysin NK-2 (MIC = 10 µM) and the synthetic antilipopolysaccharide peptide (Lpep) (MIC>10 µM) and overall differed from the two other methanoarchaea, Methanobrevibacter smithii and Methanosphaera stadtmanae in respect to AMP sensitivity. Moreover, only weak immunogenic potential of M. luminyensis was demonstrated using peripheral blood mononuclear cells (PBMCs) and monocyte-derived dendritic cells (moDCs) by determining release of pro-inflammatory cytokines. Overall, our findings clearly demonstrate that the archaeal gut inhabitant M. luminyensis is susceptible to the release of human-derived antimicrobial peptides and exhibits low immunogenicity towards human immune cells in vitro-revealing characteristics of a typical commensal gut microbe.
[Mh] Termos MeSH primário: Anti-Infecciosos/farmacologia
Intestinos/microbiologia
Methanomicrobiaceae/imunologia
Peptídeos/farmacologia
[Mh] Termos MeSH secundário: Seres Humanos
Methanomicrobiaceae/efeitos dos fármacos
Methanomicrobiaceae/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Peptides)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171006
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185919


  2 / 106 MEDLINE  
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[PMID]:28365351
[Au] Autor:Poirier S; Madigou C; Bouchez T; Chapleur O
[Ad] Endereço:Hydrosystems and Bioprocesses Research Unit, Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 92761 Antony Cedex, France. Electronic address: simon.poirier@irstea.fr.
[Ti] Título:Improving anaerobic digestion with support media: Mitigation of ammonia inhibition and effect on microbial communities.
[So] Source:Bioresour Technol;235:229-239, 2017 Jul.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This study aimed at providing a better understanding of the influence of support media (10g/L of zeolites, 10g/L of activated carbons, and 1g/L of chitosan) on key phylotypes steering anaerobic digestion (AD) performance in presence of 19g/L of Total Ammonia Nitrogen (TAN) within batch digesters. Support media did not influence TAN concentration. However, both zeolites and activated carbon 1 reduced methanization lag phase by 47% and 25%, respectively. By contrast, activated carbon 2 and chitosan led to an increase of methanization lag phase by 51% and 32%, respectively. 16S rRNA gene sequencing revealed that zeolites preserved Methanosarcina and enhanced Methanobacterium. In presence of activated carbon 1, Methanoculleus, became predominant earlier than without support while chitosan and activated carbon 2 limited its implantation. This study highlighted potentialities to use supports to enhance AD stability under extreme TAN concentration and evidenced their specific influence on the microbiota composition.
[Mh] Termos MeSH primário: Amônia/farmacologia
RNA Ribossômico 16S/genética
[Mh] Termos MeSH secundário: Anaerobiose
Methanomicrobiaceae/genética
Zeolitas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Ribosomal, 16S); 1318-02-1 (Zeolites); 7664-41-7 (Ammonia)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170601
[Lr] Data última revisão:
170601
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170403
[St] Status:MEDLINE


  3 / 106 MEDLINE  
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[PMID]:28057469
[Au] Autor:Shakeri Yekta S; Ziels RM; Björn A; Skyllberg U; Ejlertsson J; Karlsson A; Svedlund M; Willén M; Svensson BH
[Ad] Endereço:Department of Thematic Studies-Environmental Change, Linköping University, 581 83 Linköping, Sweden; Biogas Research Center, Linköping University, 581 83 Linköping, Sweden. Electronic address: sepehr.shakeri.yekta@liu.se.
[Ti] Título:Importance of sulfide interaction with iron as regulator of the microbial community in biogas reactors and its effect on methanogenesis, volatile fatty acids turnover, and syntrophic long-chain fatty acids degradation.
[So] Source:J Biosci Bioeng;123(5):597-605, 2017 May.
[Is] ISSN:1347-4421
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:The inhibitory effects of sulfide on microbial processes during anaerobic digestion have been widely addressed. However, other effects of sulfide are less explored, given that sulfide is a potential sulfur source for microorganisms and its high reactivity triggers a suit of abiotic reactions. We demonstrated that sulfide interaction with Fe regulates the dynamics and activities of microbial community during anaerobic digestion. This was manifested by the S:Fe molar ratio, whose increase adversely influenced the acetoclastic methanogens, Methanosaeta, and turnover of acetate. Dynamics of hydrogenotrophic methanogens, Methanoculleus and Methanobrevibacter, were presumably influenced by sulfide-induced changes in the partial pressure of hydrogen. Interestingly, conversion of the long-chain fatty acid (LCFA), oleate, to methane was enhanced together with the abundance of LCFA-degrading, ß-oxidizing Syntrophomonas at an elevated S:Fe molar ratio. The results suggested that sulfur chemical speciation is a controlling factor for microbial community functions in anaerobic digestion processes.
[Mh] Termos MeSH primário: Biocombustíveis
Reatores Biológicos/microbiologia
Ácidos Graxos Voláteis/metabolismo
Ferro/metabolismo
Metano/biossíntese
Sulfetos/metabolismo
[Mh] Termos MeSH secundário: Acetatos/metabolismo
Anaerobiose
Bactérias Anaeróbias/metabolismo
Clostridiales/metabolismo
Hidrogênio/metabolismo
Methanobrevibacter/metabolismo
Methanomicrobiaceae/metabolismo
Methanosarcinales/metabolismo
Ácido Oleico/química
Ácido Oleico/metabolismo
Oxirredução
Sulfetos/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Acetates); 0 (Biofuels); 0 (Fatty Acids, Volatile); 0 (Sulfides); 2UMI9U37CP (Oleic Acid); 7YNJ3PO35Z (Hydrogen); E1UOL152H7 (Iron); OP0UW79H66 (Methane)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170509
[Lr] Data última revisão:
170509
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170107
[St] Status:MEDLINE


  4 / 106 MEDLINE  
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[PMID]:27931939
[Au] Autor:Kougias PG; Treu L; Benavente DP; Boe K; Campanaro S; Angelidaki I
[Ad] Endereço:Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark. Electronic address: panak@env.dtu.dk.
[Ti] Título:Ex-situ biogas upgrading and enhancement in different reactor systems.
[So] Source:Bioresour Technol;225:429-437, 2017 Feb.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Biogas upgrading is envisioned as a key process for clean energy production. The current study evaluates the efficiency of different reactor configurations for ex-situ biogas upgrading and enhancement, in which externally provided hydrogen and carbon dioxide were biologically converted to methane by the action of hydrogenotrophic methanogens. The methane content in the output gas of the most efficient configuration was >98%, allowing its exploitation as substitute to natural gas. Additionally, use of digestate from biogas plants as a cost efficient method to provide all the necessary nutrients for microbial growth was successful. High-throughput 16S rRNA sequencing revealed that the microbial community was resided by novel phylotypes belonging to the uncultured order MBA08 and to Bacteroidales. Moreover, only hydrogenotrophic methanogens were identified belonging to Methanothermobacter and Methanoculleus genera. Methanothermobacter thermautotrophicus was the predominant methanogen in the biofilm formed on top of the diffuser surface in the bubble column reactor.
[Mh] Termos MeSH primário: Biocombustíveis
Reatores Biológicos
Biotecnologia/instrumentação
Consórcios Microbianos/fisiologia
[Mh] Termos MeSH secundário: Biofilmes
Reatores Biológicos/microbiologia
Biotecnologia/métodos
Dióxido de Carbono/metabolismo
Desenho de Equipamento
Sequenciamento de Nucleotídeos em Larga Escala
Hidrogênio/metabolismo
Metano/biossíntese
Methanomicrobiaceae/genética
Consórcios Microbianos/genética
RNA Ribossômico 16S/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biofuels); 0 (RNA, Ribosomal, 16S); 142M471B3J (Carbon Dioxide); 7YNJ3PO35Z (Hydrogen); OP0UW79H66 (Methane)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170213
[Lr] Data última revisão:
170213
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161210
[St] Status:MEDLINE


  5 / 106 MEDLINE  
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[PMID]:27836515
[Au] Autor:Ziganshina EE; Ibragimov EM; Vankov PY; Miluykov VA; Ziganshin AM
[Ad] Endereço:Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, The Republic of Tatarstan, Russia.
[Ti] Título:Comparison of anaerobic digestion strategies of nitrogen-rich substrates: Performance of anaerobic reactors and microbial community diversity.
[So] Source:Waste Manag;59:160-171, 2017 Jan.
[Is] ISSN:1879-2456
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In the present study, the application of different operating strategies on performance of three continuous stirred tank reactors digesting chicken manure at mesophilic temperature and constant organic loading rate (OLR) of 3.5g L d was investigated. Control reactor (RC) and reactor (RH) with the decreasing hydraulic retention time (HRT) had the comparable specific biogas production (SBP) with maximum values of 334-351mLg during days 84-93, while the SBP from reactor with zeolites (RZ) was higher and achieved 426-432mLg . Attachments of microorganisms to zeolite particles as the operational environment, exchanged cations released from zeolites as well as lower total ammonium nitrogen (TAN) levels observed in RZ (6.2-6.3gL ; days 71-93) compared to RC (6.6-6.9gL ; days 71-93) resulted in a more effective process in RZ. Moreover, microbial community structure and dynamics were comprehensively characterized using Illumina sequencing, pyrosequencing and T-RFLP analysis of 16SrRNA genes. Methanogenic archaeal activity was additionally assessed by the expressed mcrA genes encoding the alpha subunit of methyl-CoM reductase. Within the major class Clostridia, Caldicoprobacter, Alkaliphilus, Gallicola, Sporanaerobacter and Tepidimicrobium spp. were the notable bacteria developed during operation of all tested reactors. Archaeal communities were dominated by methanogens belonging to the genus Methanosarcina followed by the genus Methanoculleus during the experimental period. Results of this study indicate that attachment of microorganisms to the zeolite particles as the operational environment might have led to the higher microbial activity at high ammonia concentrations.
[Mh] Termos MeSH primário: Reatores Biológicos/microbiologia
Consórcios Microbianos
Nitrogênio/química
[Mh] Termos MeSH secundário: Actinobacteria
Amônia
Anaerobiose
Animais
Archaea
Bacillus
Bactérias/genética
Biocombustíveis
Galinhas
Clostridium
Biologia Computacional
Esterco/microbiologia
Methanomicrobiaceae
Methanosarcina
Microscopia Eletrônica de Varredura
Polimorfismo de Fragmento de Restrição
RNA Ribossômico 16S/genética
Temperatura Ambiente
Zeolitas
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biofuels); 0 (Manure); 0 (RNA, Ribosomal, 16S); 1318-02-1 (Zeolites); 7664-41-7 (Ammonia); N762921K75 (Nitrogen)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170510
[Lr] Data última revisão:
170510
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161113
[St] Status:MEDLINE


  6 / 106 MEDLINE  
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[PMID]:27816470
[Au] Autor:Di Maria F; Barratta M; Bianconi F; Placidi P; Passeri D
[Ad] Endereço:LAR Laboratory - Dipartimento di Ingegneria, Via G. Duranti 93, 06125 Perugia, Italy; CIMIS, Via G. Duranti 67, 06125 Perugia, Italy. Electronic address: francesco.dimaria@unipg.it.
[Ti] Título:Solid anaerobic digestion batch with liquid digestate recirculation and wet anaerobic digestion of organic waste: Comparison of system performances and identification of microbial guilds.
[So] Source:Waste Manag;59:172-180, 2017 Jan.
[Is] ISSN:1879-2456
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Solid anaerobic digestion batch (SADB) with liquid digestate recirculation and wet anaerobic digestion of organic waste were experimentally investigated. SADB was operated at an organic loading rate (OLR) of 4.55kgVS/m day, generating about 252NL CH /kgVS, whereas the wet digester was operated at an OLR of 0.9kgVS/m day, generating about 320NL CH /kgVS. The initial total volatile fatty acids concentrations for SADB and wet digestion were about 12,500mg/L and 4500mg/L, respectively. There were higher concentrations of ammonium and COD for the SADB compared to the wet one. The genomic analysis performed by high throughput sequencing returned a number of sequences for each sample ranging from 110,619 to 373,307. More than 93% were assigned to the Bacteria domain. Seven and nine major phyla were sequenced for the SADB and wet digestion, respectively, with Bacteroidetes, Firmicutes and Proteobacteria being the dominant phyla in both digesters. Taxonomic profiles suggested a methanogenic pathway characterized by a relevant syntrophic acetate-oxidizing metabolism mainly in the liquid digestate of the SADB. This result also confirms the benefits of liquid digestate recirculation for improving the efficiency of AD performed with high solids (>30%w/w) content.
[Mh] Termos MeSH primário: Biodegradação Ambiental
Consórcios Microbianos
Compostos Orgânicos/química
Eliminação de Resíduos Líquidos/métodos
[Mh] Termos MeSH secundário: Anaerobiose
Bactérias
Biocombustíveis
Reatores Biológicos/microbiologia
Ácidos Graxos Voláteis/química
Metano/análise
Metano/química
Methanobacteriaceae/genética
Methanomicrobiaceae/genética
Methanosarcina/genética
Eliminação de Resíduos
Esgotos/microbiologia
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biofuels); 0 (Fatty Acids, Volatile); 0 (Organic Chemicals); 0 (Sewage); OP0UW79H66 (Methane)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170510
[Lr] Data última revisão:
170510
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161107
[St] Status:MEDLINE


  7 / 106 MEDLINE  
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[PMID]:27553654
[Au] Autor:Mochimaru H; Tamaki H; Katayama T; Imachi H; Sakata S; Kamagata Y
[Ad] Endereço:1​Institute for Geo-Resources and Environment, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8567, Japan.
[Ti] Título:Methanomicrobium antiquum sp. nov., a hydrogenotrophic methanogen isolated from deep sedimentary aquifers in a natural gas field.
[So] Source:Int J Syst Evol Microbiol;66(11):4873-4877, 2016 Nov.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A mesophilic, hydrogenotrophic methanogen, designated strain MobHT, was isolated from sediments derived from deep sedimentary, natural-gas-bearing aquifers in Japan. Strain MobHT utilized H2/CO2 or formate, but not ethanol, 1-propanol, 2-propanol, 2-butanol or cyclopentanol, for growth and methane production. In addition, acetate and tungsten were required for growth. Yeast extract stimulated the growth, but was not required. The cells were weakly motile with multiple flagella, presented as a curved-rod-shaped (0.8×2.0 µm) and occurred singly or in pairs. Strain MobHT grew at 15-40 °C (optimum 35 °C) and at pH 5.9-7.9 (optimum pH 7.0-7.5). The sodium chloride range for growth was 0-5.8 % (optimum 2 %). The G+C content of the genomic DNA was 37.6 mol%. In the phylogenetic tree based on the 16S rRNA gene sequences, strain MobHT clustered together with Methanomicrobium mobile (95.4 % in sequence similarity), and formed a distinct clade from Methanolacinia petrolearia SEBR 4847T (95.6 %) and Methanolacinia paynteri G-2000T (95.4 %). The two species of the genus Methanolacinia utilized 2-propanol, whereas strain MobHT and Methanomicrobium mobile, the sole species of the genus Methanomicrobium, do not. Based on phenotypic and phylogenetic features, we propose a novel species for the isolate with the name, Methanomicrobiumantiquum sp. nov. The type strain is MobHT (=DSM 21220T=NBRC 104160T).
[Mh] Termos MeSH primário: Água Subterrânea/microbiologia
Methanomicrobiaceae/classificação
Gás Natural
Campos de Petróleo e Gás/microbiologia
Filogenia
[Mh] Termos MeSH secundário: Composição de Bases
DNA Arqueal/genética
Japão
Metano
Methanomicrobiaceae/genética
Methanomicrobiaceae/isolamento & purificação
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Archaeal); 0 (Natural Gas); 0 (RNA, Ribosomal, 16S); OP0UW79H66 (Methane)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160825
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.001444


  8 / 106 MEDLINE  
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[PMID]:27189979
[Au] Autor:Borrel G; Adam PS; Gribaldo S
[Ad] Endereço:Department of Microbiology, Unité De Biologie Moléculaire Du Gène Chez Les Extrêmophiles, Institut Pasteur, Paris, France guillaume.borrel@pateur.fr simonetta.gribaldo@pasteur.fr.
[Ti] Título:Methanogenesis and the Wood-Ljungdahl Pathway: An Ancient, Versatile, and Fragile Association.
[So] Source:Genome Biol Evol;8(6):1706-11, 2016 06 13.
[Is] ISSN:1759-6653
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Methanogenesis coupled to the Wood-Ljungdahl pathway is one of the most ancient metabolisms for energy generation and carbon fixation in the Archaea. Recent results are sensibly changing our view on the diversity of methane-cycling capabilities in this Domain of Life. The availability of genomic sequences from uncharted branches of the archaeal tree has highlighted the existence of novel methanogenic lineages phylogenetically distant to previously known ones, such as the Methanomassiliicoccales. At the same time, phylogenomic analyses have suggested a methanogenic ancestor for all Archaea, implying multiple independent losses of this metabolism during archaeal diversification. This prediction has been strengthened by the report of genes involved in methane cycling in members of the Bathyarchaeota (a lineage belonging to the TACK clade), representing the first indication of the presence of methanogenesis outside of the Euryarchaeota. In light of these new data, we discuss how the association between methanogenesis and the Wood-Ljungdahl pathway appears to be much more flexible than previously thought, and might provide information on the processes that led to loss of this metabolism in many archaeal lineages. The combination of environmental microbiology, experimental characterization and phylogenomics opens up exciting avenues of research to unravel the diversity and evolutionary history of fundamental metabolic pathways.
[Mh] Termos MeSH primário: Archaea/genética
Evolução Molecular
Metano/metabolismo
Methanomicrobiaceae/genética
[Mh] Termos MeSH secundário: Archaea/metabolismo
Carbono/metabolismo
Genoma Arqueal
Redes e Vias Metabólicas/genética
Methanomicrobiaceae/metabolismo
Filogenia
Madeira/química
Madeira/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
7440-44-0 (Carbon); OP0UW79H66 (Methane)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170414
[Lr] Data última revisão:
170414
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160519
[St] Status:MEDLINE
[do] DOI:10.1093/gbe/evw114


  9 / 106 MEDLINE  
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[PMID]:26879957
[Au] Autor:Yu D; Li C; Wang L; Zhang J; Liu J; Wei Y
[Ad] Endereço:State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
[Ti] Título:Multiple effects of trace elements on methanogenesis in a two-phase anaerobic membrane bioreactor treating starch wastewater.
[So] Source:Appl Microbiol Biotechnol;100(15):6631-42, 2016 Aug.
[Is] ISSN:1432-0614
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:For enhancing anaerobic membrane bioreactor (AnMBR) treating food processing wastewater due to speed-limited methanogenesis step, multiple effects of trace element (TE) supplementation on methanogenesis of a two-phase AnMBR were firstly investigated in batch tests. TE supplementation included individual element, combination and recovery of Fe, Ni, Co, Cu and Zn supplementation. Multiple effects of TE supplementation were highest stimulated by 22.4 ± 5.6 % (TE313) for chemical oxygen demand (COD) removal, 43.1 ± 12.5 % (TE303) for specific methanogenic activity (SMA) and 13.9 ± 3.7 % (TE405) for biomass growth, respectively, although only 7.5 ± 0.6 % (TE106) for methane production. Dosage of TEs played a critical role in methane production, COD removal and biomass growth of the AnMBR's methanogenesis. Low dosages of TE supplementation improved the COD removal and slightly stimulated the COD bioconverting to methane and biomass, but their specific methanation activities were inhibited in the initial rapid methanogenesis stage. Several methanation functional species were increased in abundance like Methanosarcina and Methanoculleus.
[Mh] Termos MeSH primário: Reatores Biológicos/microbiologia
Metano/biossíntese
Methanomicrobiaceae/metabolismo
Methanosarcina/metabolismo
Oligoelementos/química
Purificação da Água/métodos
[Mh] Termos MeSH secundário: Anaerobiose
Manipulação de Alimentos/métodos
Eliminação de Resíduos Líquidos
Águas Residuais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Trace Elements); 0 (Waste Water); OP0UW79H66 (Methane)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170202
[Lr] Data última revisão:
170202
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160217
[St] Status:MEDLINE
[do] DOI:10.1007/s00253-016-7289-y


  10 / 106 MEDLINE  
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[PMID]:26874221
[Au] Autor:Poirier S; Desmond-Le Quéméner E; Madigou C; Bouchez T; Chapleur O
[Ad] Endereço:Hydrosystems and Bioprocesses Research Unit, Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 92761 Antony Cedex, France. Electronic address: simon.poirier@irstea.fr.
[Ti] Título:Anaerobic digestion of biowaste under extreme ammonia concentration: Identification of key microbial phylotypes.
[So] Source:Bioresour Technol;207:92-101, 2016 May.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Ammonia inhibition represents a major operational issue for anaerobic digestion (AD). In order to get more insights into AD microbiota resistance, anaerobic batch reactors performances were investigated under a wide range of Total Ammonia Nitrogen (TAN) concentrations up to 50.0g/L at 35°C. The half maximal inhibitory concentration (IC50) value was determined to be 19.0g/L. Microbial community dynamics revealed that above a TAN concentration of 10.0g/L, remarkable modifications within archaeal and bacterial communities occurred. 16S rRNA gene sequencing analysis showed a gradual methanogenic shift between two OTUs from genus Methanosarcina when TAN concentration increased up to 25.0g/L. Proportion of potential syntrophic microorganisms such as Methanoculleus and Treponema progressively raised with increasing TAN up to 10.0 and 25.0g/L respectively, while Syntrophomonas and Ruminococcus groups declined. In 25.0g/L assays, Caldicoprobacter were dominant. This study highlights the emergence of AD key phylotypes at extreme ammonia concentrations.
[Mh] Termos MeSH primário: Amônia/química
Bactérias Anaeróbias/genética
Reatores Biológicos/microbiologia
Metano/química
[Mh] Termos MeSH secundário: Anaerobiose
Concentração de Íons de Hidrogênio
Concentração Inibidora 50
Methanomicrobiaceae/genética
Methanosarcina/genética
Fenótipo
Filogenia
Análise de Componente Principal
RNA Ribossômico 16S/genética
Ruminococcus/genética
Software
Temperatura Ambiente
Treponema/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Ribosomal, 16S); 7664-41-7 (Ammonia); OP0UW79H66 (Methane)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160214
[St] Status:MEDLINE



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