abstract：:Abstract Microbial sulfate reduction is an important metabolic activity in many reduced habitats. However, little is known about the sulfate-reducing communities inhabiting petroleum hydrocarbon (PHC)-contaminated freshwater aquifer sediments. The purpose of this study was to identify the groups of sulfate-reducing ba...

journal_title：FEMS microbiology ecology

authors： Kleikemper J,Pelz O,Schroth MH,Zeyer J

更新日期：2002-10-01 00:00:00

abstract：:This study was conducted to determine the feasibility of labeling phospholipid-derived fatty acids (PLFA) of an active microbial population with a (13)C-labeled organic substrate in the denitrifying zone of a petroleum hydrocarbon-contaminated aquifer during a single-well push-pull test. Anoxic test solution was prepa...

journal_title：FEMS microbiology ecology

authors： Pombo SA,Pelz O,Schroth MH,Zeyer J

更新日期：2002-09-01 00:00:00

abstract：:Abstract Peucedanum alsaticum and Peucedanum cervaria represent characteristic umbellifers (Apiaceae) of calcareous grasslands in Central and Eastern Europe. Both accumulate glucose, fructose, mannitol and sucrose as dominant carbohydrates in their roots. The objective of the study was to determine if endophytes utili...

journal_title：FEMS microbiology ecology

authors： Hadacek F,Kraus GF

更新日期：2002-08-01 00:00:00

abstract：:Abstract In a previous study, we isolated a collection of atrazine-degrading bacteria from various soils. The aim of this study was to localise the atrazine-degrading genes in these 25 atrazine-degrading strains. In the case of the Gram-negative strains of Chelatobacter heintzii, six to seven plasmids were observed. T...

journal_title：FEMS microbiology ecology

authors： Rousseaux S,Soulas G,Hartmann A

更新日期：2002-07-01 00:00:00

abstract：:The aim of this study was to determine if arbuscular mycorrhizal (AM) colonisation influences rhizosphere bacteria differently depending on plant species. Thus, the effect of AM colonisation (Glomus intraradices) on rhizosphere bacteria of subterranean clover, cucumber, leek and maize was studied. The bacterial activi...

journal_title：FEMS microbiology ecology

authors： Söderberg KH,Olsson PA,Bååth E

更新日期：2002-06-01 00:00:00

abstract：:The mycelial response of the wood-rotting basidiomycete Resinicium bicolor to the nutritional status of its environment, the interactive effects of food base quantity and quality and of soil composition were investigated in trays of forest soil. Effects on mycelial extension, hyphal coverage and mycelial morphology (d...

journal_title：FEMS microbiology ecology

authors： Zakaria AJ,Boddy L

更新日期：2002-05-01 00:00:00

abstract：:Growth and chemotactic behavior in oxic-anoxic gradients were studied with two freshwater and four marine strains of sulfate-reducing bacteria related to the genera Desulfovibrio, Desulfomicrobium or Desulfobulbus. Cells were grown in oxygen-sulfide counter-gradients within tubes filled with agar-solidified medium. Th...

journal_title：FEMS microbiology ecology

authors： Sass AM,Eschemann A,Kühl M,Thar R,Sass H,Cypionka H

更新日期：2002-04-01 00:00:00

abstract：:The effect of a brief (24 h) temperature shift to 4 degrees C (low-temperature stress) or 50 degrees C (high-temperature stress) was studied in methanogenic slurries of Italian rice field soil incubated at either constant 30 degrees C or 15 degrees C. Low-temperature (low-T) stress showed no effect in either the 30 de...

journal_title：FEMS microbiology ecology

authors： Wu XL,Chin KJ,Conrad R

更新日期：2002-03-01 00:00:00

abstract：:Denaturing gradient gel electrophoresis (DGGE) was employed to resolve PCR-amplified nifH sequences from vegetated and unvegetated sediments from two oligotrophic seagrass bed sites on San Salvador Island, Bahamas, in order to assess diazotroph species composition. All DGGE profiles from these sites showed the same pr...

journal_title：FEMS microbiology ecology

authors： Bagwell CE,Rocque JR,Smith GW,Polson SW,Friez MJ,Longshore JW,Lovell CR

更新日期：2002-02-01 00:00:00

abstract：:Abstract The 16S rRNA sequence diversity of the euryarchaeal community in a predominately freshwater sediment at East Hill Bridge (EHB) on the River Colne estuary, Essex, UK was investigated and compared to that from marine sediments at the mouth of the river (Colne Point). The East Hill Bridge sediments appear to sup...

journal_title：FEMS microbiology ecology

authors： Purdy KJ,Munson MA,Nedwell DB,Martin Embley T

更新日期：2002-01-01 00:00:00

abstract：:The distribution of sulphate-reducing bacteria (SRBs) in three anaerobic sediments, one predominantly freshwater and low sulphate and two predominantly marine and high sulphate, on the River Tama, Tokyo, Japan, was investigated using 16S rRNA-targeted oligonucleotide probes. Hybridisation results and sulphate reductio...

journal_title：FEMS microbiology ecology

authors： Purdy KJ,Nedwell DB,Embley TM,Takii S

更新日期：2001-07-01 00:00:00

abstract：:Motile and non-motile strains of Pseudomonas fluorescens SBW25 were constructed using different combinations of the lacZY, xylE and aph marker genes which allowed their detection and differentiation in soil, root and seed samples. The survival of motile and non-motile strains was investigated in both non-competitive a...

journal_title：FEMS microbiology ecology

authors： Turnbull GA,Morgan JA,Whipps JM,Saunders JR

更新日期：2001-06-01 00:00:00

abstract：:The community composition and structure of planktonic heterotrophic bacteria (903 isolates) sampled from a small eutrophic lake in northern England (Priest Pot) was studied with respect to season (four samples) and depth (to 3.1 m). Bacteria (887) were isolated on tryptic soy broth agar and identified to 48 genera usi...

journal_title：FEMS microbiology ecology

authors： Edwards ML,Lilley AK,Timms-Wilson TH,Thompson IP,Cooper I

更新日期：2001-05-01 00:00:00

abstract：:Molecular phylogenetic analysis of a blue filamentous community from an alkaline thermal spring (79-83 degrees C) in Iceland revealed that the blue filaments were affiliated with the Aquificales. The dominant sequence type, pIce1, was most closely related to a sequence (SRI-48) found in a white filamentous community f...

journal_title：FEMS microbiology ecology

authors： Takacs CD,Ehringer M,Favre R,Cermola M,Eggertsson G,Palsdottir A,Reysenbach A

更新日期：2001-04-01 00:00:00

abstract：:High-temperature (>/=60 degrees C) synthetic food waste compost was examined by cultivation-dependent and -independent methods to determine predominant microbial populations. Fluorescent direct counts totaled 6.4 (+/-2.5)x10(10) cells gdw(-1) in a freeze-dried 74 degrees C compost sample, while plate counts for thermo...

journal_title：FEMS microbiology ecology

authors： Dees PM,Ghiorse WC

更新日期：2001-04-01 00:00:00

abstract：:The attachment of motile and non-motile strains of Pseudomonas putida PaW8 to sterile wheat roots was assessed in both non-competitive and intra-specific competitive assays. The motile strain showed significantly greater attachment to wheat roots than non-motile strains in phosphate buffer. Overall, the motile strain ...

journal_title：FEMS microbiology ecology

authors： Turnbull GA,Morgan JA,Whipps JM,Saunders JR

更新日期：2001-03-01 00:00:00

abstract：:Soil from the zone of maximal methanotrophic activity (approximately 5-8 cm depth) in a mixed coniferous-hardwood forest consumed atmospheric methane over a wide pH range (3.5-7.5) with a broad optimum between 4.8 and 6.0. Methane uptake at native soil pH values (4.4-4.8) was only slightly less rapid than rates at opt...

journal_title：FEMS microbiology ecology

authors： Benstead J,King GM

更新日期：2001-01-01 00:00:00

abstract：:As water is a source of nosocomial infections in hospitals, the presence of fastidious Gram-negative bacteria in water samples taken in a university hospital was investigated. Water samples were inoculated onto agar plates and into amoebal microplates for co-culture. Sixty-eight alpha proteobacteria isolates were obta...

journal_title：FEMS microbiology ecology

authors： La Scola B,Barrassi L,Raoult D

更新日期：2000-12-01 00:00:00

abstract：:We measured growth of a phenanthrene-degrading bacterium, Arthrobacter, strain RP17, in Forbes soil, amended with 500 µg g(-1) phenanthrene using a quantitative competitive polymerase chain reaction method. The inoculum, which was not indigenous to Forbes soil, grew from 5.55x10(5) colony forming units (cfu) g(-1) to ...

journal_title：FEMS microbiology ecology

authors： Schwartz E,V Trinh S,M Scow K

更新日期：2000-10-01 00:00:00

abstract：:The spatial distribution of marine protistan communities in the presence of organic macroaggregates, formed from natural seawater, was studied in several microcosm experiments. The presence of macroaggregates had two main effects. First, the size of the communities of bacteria, flagellates and ciliates increased, as t...

journal_title：FEMS microbiology ecology

authors： Artolozaga I I,Ayo B,Latatu A,Azúa I I,Unanue M,Iriberri J

更新日期：2000-09-01 00:00:00

abstract：:Phylogenetic analyses of ribosomal RNA gene sequences (rDNAs) retrieved from an Australian desert soil sample (Sturt National Park) revealed the presence of a number of clones which branched deeply from the high GC Gram-positive division line of descent. The most abundant group of these clones were related to Rubrobac...

journal_title：FEMS microbiology ecology

authors： Holmes AJ,Bowyer J,Holley MP,O'Donoghue M,Montgomery M,Gillings MR

更新日期：2000-08-01 00:00:00

abstract：:A 745-bp luxA fragment was amplified from Vibrio harveyi (UM 1503), radiolabeled, and used as a probe to detect and quantify luxA genotypes in culturable bacterial populations from the Chesapeake Bay. DNA samples from 53 reference strains were also examined for this gene. The luxA-positive bacteria comprised from 0-6%...

journal_title：FEMS microbiology ecology

authors： Ramaiah N,Chun J,Ravel J,Straube WL,Hill RT,Colwell RR

更新日期：2000-07-01 00:00:00

abstract：:The response of sulfate reducing bacteria (SRB) to oxygen stress under oligotrophic conditions in particle-free systems was studied in (i) sterile Berlin drinking water; (ii) mineral medium; and (iii) in coculture experiments with aerobic bacteria. Using a polyphasic approach including anaerobic cultivation, fluoresce...

journal_title：FEMS microbiology ecology

authors： Bade K,Manz W,Szewzyk U

更新日期：2000-06-01 00:00:00

abstract：:Terrestrial sites contaminated with 2,4,6-trinitrotoluene (TNT) are a widespread and persistent problem and often contain non-vegetated areas with TNT concentrations well in excess of 1000 mg kg(-1). In this study, we examined the effect of TNT on denitrification activity in field soils, and compared the sensitivity o...

journal_title：FEMS microbiology ecology

authors： Siciliano SD,Roy R,Greer CW

更新日期：2000-04-01 00:00:00

abstract：:A total of 39 phenol- and p-cresol-degraders isolated from the river water continuously polluted with phenolic compounds of oil shale leachate were studied. Species identification by BIOLOG GN analysis revealed 21 strains of Pseudomonas fluorescens (4, 8 and 9 of biotypes A, C and G, respectively), 12 of Pseudomonas m...

journal_title：FEMS microbiology ecology

authors： Heinaru E,Truu J,Stottmeister U,Heinaru A

更新日期：2000-03-01 00:00:00

abstract：:Using different techniques of molecular biology we investigated the bacterial diversity of the chemocline of the meromictic Lake Cadagno. Cloning of a total community 16S rDNA PCR product and subsequent screening with a combination of amplified ribosomal DNA restriction analysis and temporal temperature gradient gel e...

journal_title：FEMS microbiology ecology

authors： Bosshard PP,Santini Y,Grüter D,Stettler R,Bachofen R

更新日期：2000-02-01 00:00:00

abstract：:Molecular tools for the detection of the newly described acetic acid bacterium Gluconacetobacter sacchari from the pink sugarcane mealybug, Saccharicoccus sacchari Cockerell (Homiptera: Pseudococcidae), and in the sugarcane leaf sheath microenvironment were developed. G. sacchari specific 16S rRNA-targeted oligonucleo...

journal_title：FEMS microbiology ecology

authors： Franke IH,Fegan M,Hayward C,Leonard G,Sly LI

更新日期：2000-01-01 00:00:00

abstract：:Methanogenic cultures were enriched from an air-dried rice field soil and incubated under anaerobic conditions at 30 degrees C with cellulose as substrate (ET1). The culture was then transferred and further incubated at either 15 degrees C (E15) or 30 degrees C (E30), to establish stable cultures that methanogenically...

journal_title：FEMS microbiology ecology

authors： Chin K,Lukow T,Stubner S,Conrad R

更新日期：1999-12-01 00:00:00

abstract：:The impact of heavy metal contamination on soil bacterial communities was studied in soils amended for many years with sewage sludge contaminated with heavy metals to varying extents. At the broad level of resolution, DNA reassociation analysis indicated a dramatic decrease in bacterial diversity from 16{ omitted}000 ...

journal_title：FEMS microbiology ecology

authors： Sandaa R,Torsvik V V,Enger,Daae FL,Castberg T,Hahn D

更新日期：1999-11-01 00:00:00

abstract：:The diversity of Thermus strains isolated from each of two New Zealand hot pools was examined by isolating partial SSU (16S) rRNA genes and comparing their sequences. Although all of the sequences were similar, several variants were found in each pool. Standard methods for the enrichment of Thermus were then carried o...

journal_title：FEMS microbiology ecology

authors： Saul DJ,Reeves RA,Morgan HW,Bergquist PL

更新日期：1999-10-01 00:00:00

abstract：:Plants may serve as reservoirs for human-associated bacteria (H-AB) in long-term space missions containing bioregenerative life support systems. The current study examined the abilities of five human-associated potential pathogens, Pseudomonas aeruginosa, Pseudomonas cepacia, Staphylococcus aureus, Streptococcus pyoge...

journal_title：FEMS microbiology ecology

authors： Morales A,Garland JL,Lim DV

更新日期：1996-07-01 00:00:00