Exposure to soil, house dust and decaying plants increases gut microbial diversity and decreases serum immunoglobulin E levels in BALB/c mice.

abstract：:Bacterial assemblages in coastal pelagic environments are exposed to pronounced temporal and spatial fluctuations in the availability of monomeric substrates. Little is known about the response of particular bacterial groups to such variability. We studied glucose incorporation at various concentrations (0.1-100 nM) b...

journal_title：Environmental microbiology

authors： Alonso C,Pernthaler J

更新日期：2006-11-01 00:00:00

abstract：:The well-known role of antibiotics in killing sensitive organisms has been challenged by the effects they exert at subinhibitory concentrations. Unfortunately, there are very few published reports on the advantages these molecules may confer to their producers. This study describes the construction of a genetically ve...

journal_title：Environmental microbiology

authors： Prajapati D,Kumari N,Dave K,Chatupale V,Pohnerkar J

更新日期：2019-02-01 00:00:00

abstract：:Pathogenic Vibrio parahaemolyticus strains producing either or both of a thermostable direct haemolysin (TDH) and a TDH-related haemolysin (TRH) encoded by tdh and trh genes, respectively, are isolated at a low rate from the environment. However, recently we observed that a considerable percentage of APW (alkaline pep...

journal_title：Environmental microbiology

authors： Parvathi A,Kumar HS,Bhanumathi A,Ishibashi M,Nishibuchi M,Karunasagar I,Karunasagar I

更新日期：2006-06-01 00:00:00

abstract：:Seafloor microorganisms impact global carbon cycling by mineralizing vast quantities of organic matter (OM) from pelagic primary production, which is predicted to increase in the Arctic because of diminishing sea ice cover. We studied microbial interspecies-carbon-flow during anaerobic OM degradation in arctic marine ...

journal_title：Environmental microbiology

authors： Müller AL,Pelikan C,de Rezende JR,Wasmund K,Putz M,Glombitza C,Kjeldsen KU,Jørgensen BB,Loy A

更新日期：2018-08-01 00:00:00

abstract：:The surface and surroundings of microalgal cells (phycosphere) are critical interaction zones but have been difficult to functionally interrogate due to methodological limitations. We examined effects of phycosphere-associated bacteria for two biofuel-relevant microalgal species (Phaeodactylum tricornutum and Nannochl...

journal_title：Environmental microbiology

authors： Samo TJ,Kimbrel JA,Nilson DJ,Pett-Ridge J,Weber PK,Mayali X

更新日期：2018-12-01 00:00:00

abstract：:Of eight laboratory cultures of marine gamma- and alpha-Proteobacteria tested, growth on glycolate as a sole carbon source was detected for only three species: Pseudomonas stutzeri, Oceanimonas doudoroffii and Roseobacter sp. isolate Y3F. Degenerate polymerase chain reaction (PCR) primers were designed to amplify glcD...

journal_title：Environmental microbiology

authors： Lau WW,Armbrust EV

更新日期：2006-10-01 00:00:00

abstract：:Resistance Nodulation cell Division (RND) efflux pumps are known to contribute to the tolerance of Pseudomonas putida to aromatic hydrocarbons, but their role in antibiotic resistance has not been fully elucidated. In this study, two types of single-step multidrug-resistant (MDR) mutants were selected in vitro from re...

journal_title：Environmental microbiology

authors： Puja H,Comment G,Chassagne S,Plésiat P,Jeannot K

更新日期：2020-12-01 00:00:00

abstract：:Methyl-coenzyme M reductase (MCR) has been originally identified to catalyse the final step of the methanogenesis pathway. About 20 years ago anaerobic methane-oxidizing archaea (ANME) were discovered that use MCR enzymes to activate methane. ANME thrive at the thermodynamic limit of life, are slow-growing, and in mos...

journal_title：Environmental microbiology

authors： Wang Y,Wegener G,Ruff SE,Wang F

更新日期：2020-05-04 00:00:00

abstract：:Arctic permafrost soils store large amounts of organic matter that is sensitive to temperature increases and subsequent microbial degradation to methane (CH 4 ) and carbon dioxide (CO 2 ). Here, we studied methanogenic and methanotrophic activity and community composition in thermokarst lake sediments from Utqiag˙vik ...

journal_title：Environmental microbiology

authors： de Jong AEE,In 't Zandt MH,Meisel OH,Jetten MSM,Dean JF,Rasigraf O,Welte CU

更新日期：2018-12-01 00:00:00

abstract：:Insects and nematodes represent the most species-rich animal taxa and they occur together in a variety of associations. Necromenic nematodes of the genus Pristionchus are found on scarab beetles with more than 30 species known from worldwide samplings. However, little is known about the dynamics and succession of nema...

journal_title：Environmental microbiology

authors： Meyer JM,Baskaran P,Quast C,Susoy V,Rödelsperger C,Glöckner FO,Sommer RJ

更新日期：2017-04-01 00:00:00

abstract：:Vibrios belonging to the Harveyi clade are pathogenic marine bacteria affecting both vertebrates and invertebrates, thereby causing a severe threat to the aquaculture industry. In this study, the expression of haemolysin, metalloprotease, serine protease, the quorum sensing master regulator LuxR and the virulence regu...

journal_title：Environmental microbiology

authors： Ruwandeepika HA,Defoirdt T,Bhowmick PP,Karunasagar I,Karunasagar I,Bossier P

更新日期：2011-02-01 00:00:00

abstract：:Here it is reported the first detection of DV-chl a together with the usual chl a in the marine dinoflagellate Alexandrium ostenfeldii from the Baltic Sea. Growth response and photosynthetic parameters were examined at two irradiances (80 and 240 μmol photons m(-2) s(-1)) and temperatures (15 °C and 19 °C) in a diviny...

journal_title：Environmental microbiology

authors： Rodríguez F,Garrido JL,Sobrino C,Johnsen G,Riobó P,Franco J,Aamot I,Ramilo I,Sanz N,Kremp A

更新日期：2016-02-01 00:00:00

abstract：:We designed and tested a set of specific primers for specific PCR amplification of the biotin carboxylase subunit gene (accC) of the Acetyl CoA carboxylase (ACCase) enzyme. The primer set yielded a PCR product of c. 460 bp that was suitable for denaturing gradient gel electrophoresis (DGGE) fingerprinting followed by ...

journal_title：Environmental microbiology

authors： Auguet JC,Borrego CM,Bañeras L,Casamayor EO

更新日期：2008-10-01 00:00:00

abstract：:Cyanobacteria, phototrophic organisms performing oxygenic photosynthesis, must adapt their metabolic processes to the challenges imposed by the succession of days and nights. Two conserved cyanobacterial proteins, PII and PipX, function as hubs of the nitrogen interaction network, forming complexes with a variety of d...

journal_title：Environmental microbiology

authors： Espinosa J,Labella JI,Cantos R,Contreras A

更新日期：2018-03-01 00:00:00

abstract：:Autotrophic carbon dioxide (CO2 ) fixation by microbes is ubiquitous in the environment and potentially contributes to the soil organic carbon (SOC) pool. However, the multiple autotrophic pathways of microbial carbon assimilation and fixation in paddy soils remain poorly characterized. In this study, we combine metag...

journal_title：Environmental microbiology

authors： Xiao KQ,Ge TD,Wu XH,Peacock CL,Zhu ZK,Peng J,Bao P,Wu JS,Zhu YG

更新日期：2020-08-21 00:00:00

abstract：:Coralline algae are a crucial component of reef systems, stabilising reef substrate, providing habitat and contributing to accretion. Coralline algae and their surface microbial biofilms are also important as settlement cues for marine invertebrates, yet few studies address the impact of future environmental condition...

journal_title：Environmental microbiology

authors： Huggett MJ,McMahon K,Bernasconi R

更新日期：2018-08-01 00:00:00

abstract：:The type VI nanomachine is critical for Vibrio cholerae to establish infections and to thrive in niches co-occupied by competing bacteria. The genes for the type VI structural proteins are encoded in one large and two small auxiliary gene clusters. VCA0117 (VasH) - a σ54 -transcriptional activator - is strictly requir...

journal_title：Environmental microbiology

authors： Seibt H,Aung KM,Ishikawa T,Sjöström A,Gullberg M,Atkinson GC,Wai SN,Shingler V

更新日期：2020-10-01 00:00:00

abstract：:Using DNA obtained from the metagenome of an anaerobic digestor in a waste water treatment plant, we constructed a gene library cloned in the wide host-range cosmid pLAFR3. One cosmid enabled Rhizobium leguminosarum to grow on ethanol as sole carbon and energy source, this being due to the presence of a gene, termed a...

journal_title：Environmental microbiology

authors： Wexler M,Bond PL,Richardson DJ,Johnston AW

更新日期：2005-12-01 00:00:00

abstract：:LecA (PA-IL) is a cytotoxic lectin and adhesin produced by Pseudomonas aeruginosa which binds hydrophobic galactosides with high specificity and affinity. By using a lecA-egfp translation fusion and immunoblot analysis of the biofilm extracellular matrix, we show that lecA is expressed in biofilm-grown cells. In stati...

journal_title：Environmental microbiology

authors： Diggle SP,Stacey RE,Dodd C,Cámara M,Williams P,Winzer K

更新日期：2006-06-01 00:00:00

abstract：:The factors that control the production of microcystins (hepatotoxins) during cyanobacterial blooms, and the function of these metabolites remain largely unknown. In an attempt to provide answers to these questions, we compared the fitness of microcystin (MC)-producing and non-MC-producing Planktothrix agardhii strain...

journal_title：Environmental microbiology

authors： Briand E,Yéprémian C,Humbert JF,Quiblier C

更新日期：2008-12-01 00:00:00

abstract：:The coral holobiont is the integrated assemblage of the coral animal, its symbiotic algae, protists, fungi and a diverse consortium of Bacteria and Archaea. Corals are a model system for the study of symbiosis, the breakdown of which can result in disease and mortality. Little is known, however, about viruses that inf...

journal_title：Environmental microbiology

authors： Marhaver KL,Edwards RA,Rohwer F

更新日期：2008-09-01 00:00:00

abstract：:The sulfate-reducing culture N47 can utilize naphthalene or 2-methylnaphthalene as the sole carbon source and electron donor. Here we show that the initial reaction in the naphthalene degradation pathway is a methylation to 2-methylnaphthalene which then undergoes the subsequent oxidation to the central metabolite 2-n...

journal_title：Environmental microbiology

authors： Safinowski M,Meckenstock RU

更新日期：2006-02-01 00:00:00

abstract：:Despite its environmental robustness Pseudomonas putida strain KT2440 is very sensitive to DNA damage and displays poor homologous recombination efficiencies. To gain an insight into this deficiency isogenic ∆recA and ∆lexA1 derivatives of prophage-free strain P. putida EM173 were generated and responses of the recA a...

journal_title：Environmental microbiology

authors： Akkaya Ö,Aparicio T,Pérez-Pantoja D,de Lorenzo V

更新日期：2021-01-03 00:00:00

abstract：:Cyanobacteria are regarded as the main N(2)-fixing organisms in marine waters. However, recent clone libraries from various oceans show a wide distribution of the dinitrogenase reductase gene (nifH) originating from heterotrophic bacterioplankton. We isolated heterotrophic N(2)-fixing bacteria from Baltic Sea bacterio...

journal_title：Environmental microbiology

authors： Boström KH,Riemann L,Kühl M,Hagström A

更新日期：2007-01-01 00:00:00

abstract：:Biological membranes have evolved different mechanisms to modify their composition in response to chemical stimuli in a process called 'homeoviscous adaptation'. Among these mechanisms, modifications in the ratio of saturated/unsaturated fatty acids and in cis/trans fatty acid isomers, cyclopropanation and changes in ...

journal_title：Environmental microbiology

authors： Bernal P,Muñoz-Rojas J,Hurtado A,Ramos JL,Segura A

更新日期：2007-05-01 00:00:00

abstract：:Alcanivorax is an alkane-degrading marine bacterium which propagates and becomes predominant in crude-oil-containing seawater when nitrogen and phosphorus nutrients are supplemented. In order to understand why Alcanivorax overcomes other bacteria under such cultural conditions, competition experiments between Alcanivo...

journal_title：Environmental microbiology

authors： Hara A,Syutsubo K,Harayama S

更新日期：2003-09-01 00:00:00

abstract：:In the forthcoming decades, it is widely believed that the dominance of colonial and filamentous bloom-forming cyanobacteria (e.g. Microcystis, Planktothrix, Anabaena and Cylindrospermopsis) will increase in freshwater systems as a combined result of anthropogenic nutrient input into freshwater bodies and climate chan...

journal_title：Environmental microbiology

authors： Gerphagnon M,Macarthur DJ,Latour D,Gachon CM,Van Ogtrop F,Gleason FH,Sime-Ngando T

更新日期：2015-08-01 00:00:00

abstract：:The advances in synthetic biology bring exciting new opportunities to reprogram microorganisms with novel functionalities for environmental applications. For real-world applications, a genetic tool that enables genetic engineering in a stably genomic inherited manner is greatly desired. In this work, we design a novel...

journal_title：Environmental microbiology

authors： Fan YY,Tang Q,Li Y,Li FH,Wu JH,Li WW,Yu HQ

更新日期：2020-12-28 00:00:00

abstract：:During the anaerobic biodegradation of naphthalene and methylnaphthalene, unique metabolites are formed by specific microbial carboxylation and ring-reduction reactions. Groundwater samples from an anoxic, shallow aquifer contaminated with gasoline were examined for the presence of these metabolites by extraction, der...

journal_title：Environmental microbiology

authors： Phelps CD,Battistelli J,Young LY

更新日期：2002-09-01 00:00:00

abstract：:Nitrogen is frequently limiting microbial growth in the environment. As a response, many filamentous cyanobacteria differentiate heterocysts, cells devoted to N2 fixation. Heterocyst differentiation is under the control of the master regulator HetR. Through the characterization of the HetR-dependent transcriptome in N...

journal_title：Environmental microbiology

authors： Brenes-Álvarez M,Mitschke J,Olmedo-Verd E,Georg J,Hess WR,Vioque A,Muro-Pastor AM

更新日期：2019-07-01 00:00:00