abstract：:We report first insights into a representative genome of rice cluster I (RC-I), a major group of as-yet uncultured methanogens. The starting point of our study was the methanogenic consortium MRE50 that had been stably maintained for 3 years by consecutive transfers to fresh medium and anaerobic incubation at 50 degre...

journal_title：FEMS microbiology ecology

authors： Erkel C,Kemnitz D,Kube M,Ricke P,Chin KJ,Dedysh S,Reinhardt R,Conrad R,Liesack W

更新日期：2005-07-01 00:00:00

abstract：:Qualitative and quantitative changes of microbial communities in soil microcosms during bioremediation were determined throughout one year. The soil was contaminated with 0%, 2.5%, 5%, 10% (wt/wt) of petrochemical sludge containing polynuclear aromatic hydrocarbons. We analyzed the hydrocarbon concentration in the mic...

journal_title：FEMS microbiology ecology

authors： Del Panno MT,Morelli IS,Engelen B,Berthe-Corti L

更新日期：2005-07-01 00:00:00

abstract：:In this study, variation in the bacterioplankton community structure of three Antarctic lakes of different nutrient status, was determined in relation to physical and chemical gradients at depth and at time intervals, across the seasonal transition from winter ice-cover to the summer ice-free period. The three lakes s...

journal_title：FEMS microbiology ecology

authors： Pearce DA

更新日期：2005-06-01 00:00:00

abstract：:A modified fluorescence in situ hybridization (FISH) method was used to analyze bacterial prey composition in protistan food vacuoles in both laboratory and natural populations. Under laboratory conditions, we exposed two bacterial strains (affiliated with beta- and gamma-Proteobacteria -- Aeromonas hydrophila and Pse...

journal_title：FEMS microbiology ecology

authors： Jezbera J,Hornák K,Simek K

更新日期：2005-05-01 00:00:00

abstract：:On-board flow cytometric determinations of picoplankton abundance (i.e. Synechococcus spp., Prochlorococcus spp., picoeukaryotes and also heterotrophic bacteria) were obtained in the East China Sea in fall of 2000 and 2003. The average abundances of Synechococcus, Prochlorococcus, picoeukaryotes and heterotrophic bact...

journal_title：FEMS microbiology ecology

authors： Pan LA,Zhang LH,Zhang J,Gasol JM,Chao M

更新日期：2005-04-01 00:00:00

abstract：:The effects of nutrient additions and grazing by macro-invertebrates on periphyton-associated algae and bacteria were studied by performing an enclosure experiment on three occasions from early spring to summer at mesotrophic Lake Erken and Väddö, at the Swedish Baltic coast. There were significant interactions betwee...

journal_title：FEMS microbiology ecology

authors： Haglund AL,Hillebrand H

更新日期：2005-03-01 00:00:00

abstract：:The density and spatial location of bacteria were investigated within different horizons of an upland grassland soil before and after a liming treatment to increase the numbers of large soil fauna. Bacterial cells were located by image analysis of stained thin sections and densities calculated from these data. Excreme...

journal_title：FEMS microbiology ecology

authors： Bruneau PM,Davidson DA,Grieve IC,Young IM,Nunan N

更新日期：2005-03-01 00:00:00

abstract：:Methane production was studied in an Italian rice field over two consecutive years (1998, 1999) by measuring the rates of total and acetate-dependent methanogenesis in soil and root samples. Population dynamics of methanogens were followed by terminal restriction fragment length polymorphism and real-time PCR targetin...

journal_title：FEMS microbiology ecology

authors： Krüger M,Frenzel P,Kemnitz D,Conrad R

更新日期：2005-02-01 00:00:00

abstract：:Differences between endophytic and ectophytic bacterial communities with stress on antagonistic bacteria, were studied by comparing the composition of communities isolated from the rhizosphere, phyllosphere, endorhiza and endosphere of field-grown potato plants using a multiphasic approach. Terminal restriction fragme...

journal_title：FEMS microbiology ecology

authors： Berg G,Krechel A,Ditz M,Sikora RA,Ulrich A,Hallmann J

更新日期：2005-01-01 00:00:00

abstract：:Microbial communities of ancient Mediterranean sapropels, buried sediment layers of high organic matter, were analyzed by most probable number (MPN) approaches. Mineral media containing different carbon sources in sub-millimolar concentrations were used. MPN numbers were elevated in sapropels and at the sediment surfa...

journal_title：FEMS microbiology ecology

authors： Süss J,Engelen B,Cypionka H,Sass H

更新日期：2004-12-27 00:00:00

abstract：:Methane-oxidizing bacteria are the only terrestrial sink for atmospheric methane. Little is known, however, about the methane-oxidizing bacteria that are responsible for the consumption of atmospheric methane, or about the factors that influence their activity and diversity in soil. Effects of fire and its end-product...

journal_title：FEMS microbiology ecology

authors： Jaatinen K,Knief C,Dunfield PF,Yrjålå K,Fritze H

更新日期：2004-11-01 00:00:00

abstract：:The role of Streptomyces sp. (BTL7) in synthesis of antibacterial agents reported from the marine sponge Dendrilla nigra was evaluated. Selective isolation of actinomycetes was performed on the newly developed selective media, Sponge Agar (SA) 1 and SA 2. The growth rate and antibiotic production were increased on the...

journal_title：FEMS microbiology ecology

authors： Selvin J,Joseph S,Asha KR,Manjusha WA,Sangeetha VS,Jayaseema DM,Antony MC,Denslin Vinitha AJ

更新日期：2004-11-01 00:00:00

abstract：:We re-evaluated PCR primers targeting nirS, nirK and nosZ genes for denaturing gradient gel electrophoresis as a tool to survey denitrifying community composition in environmental samples. New primers for both nirS and nosZ were combined with existing primers, while for nirK the previously published F1aCu:R3Cu set was...

journal_title：FEMS microbiology ecology

authors： Throbäck IN,Enwall K,Jarvis A,Hallin S

更新日期：2004-09-01 00:00:00

abstract：:Construction of 16S rDNA libraries was undertaken to examine the structure of free-living bacterial communities in the estuarine system Ria de Aveiro, Portugal. Samples were collected in April 2002, from two sites representing marine (station N1) and brackish (station I6) water zones. Clones were characterized by RFLP...

journal_title：FEMS microbiology ecology

authors： Henriques IS,Almeida A,Cunha A,Correia A

更新日期：2004-08-01 00:00:00

abstract：:Current strategies to protect groundwater sources from microbial contamination (e.g., wellhead protection areas) rely upon natural attenuation of microorganisms between wells or springs and potential sources of contamination and are determined using average (macroscopic) groundwater flow velocities defined by Darcy's ...

journal_title：FEMS microbiology ecology

authors： Taylor R,Cronin A,Pedley S,Barker J,Atkinson T

更新日期：2004-07-01 00:00:00

abstract：:The biodegradation of alicyclic compounds was studied under methanogenic and sulfate-reducing conditions in samples from a gas condensate-contaminated aquifer amended with whole gasoline. Aquifer microorganisms exhibited previously unrecognized anaerobic alicyclic hydrocarbon metabolism of a broad range of substrates ...

journal_title：FEMS microbiology ecology

authors： Townsend GT,Prince RC,Suflita JM

更新日期：2004-07-01 00:00:00

abstract：:Biological oxidation of CH(4) is an important constraint on the emission of this gas from areas, such as landfills to the atmosphere. We studied the effect of temperature on methanotrophic bacteria in three different landfill cover soils, incubated in the laboratory. In samples of a young cover, consisting of wood chi...

journal_title：FEMS microbiology ecology

authors： Börjesson G,Sundh I,Svensson B

更新日期：2004-06-01 00:00:00

abstract：:Anaerobic digestion of olive mill wastewaters is generally performed in anaerobic contact bioreactors where the removal of toxic phenols is often unsatisfactory. In the present work we show that a granular activated carbon packed-bed biofilm reactor can be successfully used to achieve effective and reproducible wastew...

journal_title：FEMS microbiology ecology

authors： Bertin L,Colao MC,Ruzzi M,Fava F

更新日期：2004-06-01 00:00:00

abstract：:Population levels of total and ampicillin-resistant culturable bacteria and the putative horizontal bla gene acquirement from Bt-corn were studied in commercial fields of transgenic corn in Spain during the years 2000-2003. Commercial fields consisting of conventional corn (Dracma) and Bt176 transgenic corn (Compa CB)...

journal_title：FEMS microbiology ecology

authors： Badosa E,Moreno C,Montesinos E

更新日期：2004-05-01 00:00:00

abstract：:The effects of heavy metals and phytoextraction practices on a soil microbial community were studied during 12 months using a hyperaccumulating plant (Thlaspi caerulescens) grown in an artificially contaminated soil. The 16S ribosomal RNA genes of the Bacteria and the beta-Proteobacteria and the amoA gene (encoding th...

journal_title：FEMS microbiology ecology

authors： Gremion F,Chatzinotas A,Kaufmann K,Von Sigler W,Harms H

更新日期：2004-05-01 00:00:00

abstract：:Fifty-six mercury-resistant (Hg(R)) Bacillus strains were isolated from natural environments at various sites of the world. Southern hybridisation and polymerase chain reaction (PCR) analysis showed that 21 of the 56 isolates have closely related or identical mer operons to that of Bacillus megaterium MB1. These 21 is...

journal_title：FEMS microbiology ecology

authors： Narita M,Matsui K,Huang CC,Kawabata Z,Endo G

更新日期：2004-04-01 00:00:00

abstract：:Bacteria belonging to the genus Methylobacterium are characterized by being able to rely on methanol as a sole carbon and energy source and by presenting a more or less intense pink reddish pigmentation. These bacteria, also referred to as pink-pigmented methylotrophic bacteria (PPFMs), are common inhabitants of the p...

journal_title：FEMS microbiology ecology

authors： Omer ZS,Tombolini R,Gerhardson B

更新日期：2004-03-01 00:00:00

abstract：:There are an increasing number of assays available for fungal plant pathogens based on DNA technology. We have developed such an assay for Gaeumannomyces graminis var. tritici (Ggt) in soil, using slot-blot hybridisation. To ensure the validity of DNA-based soil assays for the fungus, it is important to determine the ...

journal_title：FEMS microbiology ecology

authors： Herdina,Neate S,Jabaji-Hare S,Ophel-Keller K

更新日期：2004-02-01 00:00:00

abstract：:It has been postulated that a variety of physically undefended marine invertebrates have evolved strategies to control microbial epibiosis chemically. Ecologically meaningful experiments that demonstrate chemically mediated antibacterial effects are difficult due to the small number of cultivable bacteria. Based on th...

journal_title：FEMS microbiology ecology

authors： Harder T,Lau SC,Tam WY,Qian PY

更新日期：2004-01-01 00:00:00

abstract：:An integrated modeling framework was developed to assess physical, biological and chemical processes in the sediment and at the sediment-water interface. Special focus is laid on the description of different functional groups of bacteria as defined according to their metabolic pathways, including fermentation, methano...

journal_title：FEMS microbiology ecology

authors： Wirtz KW

更新日期：2003-12-01 00:00:00

abstract：:Cultivation-independent molecular approaches were used to investigate the phylogenetic composition of Archaea and the relative abundance of phylogenetically defined groups of methanogens in the leachate of a closed municipal solid waste landfill. Cloning and phylogenetic analysis of archaeal 16S rRNA gene sequences (1...

journal_title：FEMS microbiology ecology

authors： Huang LN,Chen YQ,Zhou H,Luo S,Lan CY,Qu LH

更新日期：2003-11-01 00:00:00

abstract：:Abstract The bacterial activity in sediments is often low considering the generally high bacterial abundance. Still, a large fraction of bacteria have been found active even in deep sediments. These findings suggest that sediment bacteria have comparatively low cell-specific production. We studied bacterial activity a...

journal_title：FEMS microbiology ecology

authors： Haglund AL,Lantz P,Törnblom E,Tranvik L

更新日期：2003-10-01 00:00:00

abstract：:The involvement of microbial interactions in natural transformation of bacteria was evaluated using an aquatic model system. For this purpose, the naturally transformable Bacillus subtilis was used as the model bacterium which was co-cultivated with the protist Tetrahymena thermophila (a consumer) and/or the photosynt...

journal_title：FEMS microbiology ecology

authors： Matsui K,Ishii N,Kawabata Z

更新日期：2003-08-01 00:00:00

abstract：:Abstract Studies on the diversity of environmental culturable Pseudomonas populations are dependent on the isolation procedure. This procedure includes the use of selective media which may influence the recovery of strains and thus the diversity described. In this study, we assessed the use of two agar isolation media...

journal_title：FEMS microbiology ecology

authors： Tarnawski S,Hamelin J,Locatelli L,Aragno M,Fromin N

更新日期：2003-07-01 00:00:00

abstract：:Abstract The impact of salinity on the composition and functional performance (biomass production, growth efficiency and growth rates) of bacterial communities was investigated using batch cultures growing on dissolved organic carbon from a river draining into the Northern Baltic Sea. The cultures were adjusted to riv...

journal_title：FEMS microbiology ecology

authors： Langenheder S,Kisand V,Wikner J,Tranvik LJ

更新日期：2003-07-01 00:00:00

abstract：:Abstract Black reduced sediment surfaces (Black Spots) in sandy intertidal flats of the German Wadden Sea (southern North Sea) are characterised by elevated sulphide concentrations (up to 20 mM) and low redox potentials. It is assumed that the appearance of Black Spots is linked to elevated levels of organic matter co...

journal_title：FEMS microbiology ecology

authors： Freitag TE,Klenke T,Krumbein WE,Gerdes G,Prosser JI

更新日期：2003-06-01 00:00:00

abstract：:The molecular diversity and community structure of bacteria from the gut of the termite Reticulitermes speratus were analyzed by the sequencing of near-full-length 16S rRNA genes, amplified by polymerase chain reaction. The results of the analysis of 1344 clones indicated a predominance of spirochetes in the gut. Spir...

journal_title：FEMS microbiology ecology

authors： Hongoh Y,Ohkuma M,Kudo T

更新日期：2003-05-01 00:00:00

abstract：:Abstract The mycelial growth form of eucarpic fungi allows for a highly effective spatial exploration of the soil habitat. However, understanding mycelial spread through soil has been limited by difficulties of observation and quantification of fungi as they spread through this matrix. We report on a study on the effe...

journal_title：FEMS microbiology ecology

authors： Harris K,Young IM,Gilligan CA,Otten W,Ritz K

更新日期：2003-05-01 00:00:00

abstract：:Abstract Laboratory studies were carried out to assess the photosynthetic and nitrogen-fixing capabilities of the gliding, filamentous cyanobacterium Phormidium corallyticum. This species is found on coral reefs, and is one of the members of a pathogenic microbial consortium called black band disease of corals, a uniq...

journal_title：FEMS microbiology ecology

authors： Richardson LL,Kuta KG

更新日期：2003-04-01 00:00:00

abstract：:Abstract The protocol used in the present study was a long-term mesocosm experiment where the microbial succession around live barley roots and subsequent decomposing roots was assessed after seed coating with either the antagonistic strain Pseudomonas fluorescens DR54-BN14 or the fungicide imazalil. Four diversity me...

journal_title：FEMS microbiology ecology

authors： Thirup L,Johansen A,Winding A

更新日期：2003-04-01 00:00:00

abstract：:Autotrophic ammonia-oxidising bacteria (AOB) are a crucial component of the microbial communities of nitrifying wastewater treatment systems. Nitrification is known to occur in reactors of different configuration, but whether AOB communities are different in reactors of different design is unknown. We compared the div...

journal_title：FEMS microbiology ecology

authors： Rowan AK,Snape JR,Fearnside D,Barer MR,Curtis TP,Head IM

更新日期：2003-03-01 00:00:00

abstract：:Abstract To better understand the trigger for and use of motility in marine bacterial chemotaxis, specific (amino acids) chemical stimuli were used to test the effect on bacterial speed and reorientation. An assay system was developed to analyse bacterial behavioural responses to point-like nutrient sources (beads 10-...

journal_title：FEMS microbiology ecology

authors： Barbara GM,Mitchell JG

更新日期：2003-02-01 00:00:00

abstract：:The physiological response of bacteria to temperature is critical for the regulation of biogeochemical processes on daily, seasonal, and inter-annual time scales. We investigated the temperature response of the marine sulfate-reducing bacterium Desulfobacterium autotrophicum strain HRM2. Growth experiments in a temper...

journal_title：FEMS microbiology ecology

authors： Rabus R,Brüchert V,Amann J,Könneke M

更新日期：2002-12-01 00:00:00

abstract：:Plasmid pQBR55 ( approximately 149 kb) represents one of five (Groups I-V) genetically distinct transfer proficient, mercury resistance plasmid groups that have been observed in the phytosphere pseudomonad community at a single geographic location in Oxford, UK. A 4.9-kb HindIII fragment was cloned from pQBR55 (a Grou...

journal_title：FEMS microbiology ecology

authors： Turner SL,Lilley AK,Bailey MJ

更新日期：2002-11-01 00:00:00

abstract：:IS91 is the prototype element of a family of bacterial insertion sequences that transpose by a rolling-circle mechanism. Although previously considered a rarity among IS elements, many new examples have been identified by sequence analysis of bacterial genomes. In this work we provide a summary of occurrences of IS91-...

journal_title：FEMS microbiology ecology

authors： Garcillán-Barcia MP,de la Cruz F

更新日期：2002-11-01 00:00:00