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 out and the gene isolation and sequencing procedure was performed on the enriched isolates. The enrichments resulted in the maintenance of a single dominant strain from each pool and there was a complete loss of heterogeneity in the sequences. These results demonstrate that minor differences in SSU rRNA sequence are indicative of a physiological variance between strains which is of sufficient significance to provide selective advantage or disadvantage during enrichment.
journal_name
FEMS Microbiol Ecoljournal_title
FEMS microbiology ecologyauthors
Saul DJ,Reeves RA,Morgan HW,Bergquist PLdoi
10.1111/j.1574-6941.1999.tb00644.xsubject
Has Abstractpub_date
1999-10-01 00:00:00pages
157-162issue
2eissn
0168-6496issn
1574-6941pii
S0168-6496(99)00049-5journal_volume
30pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2000.tb00741.x
更新日期:2000-09-01 00:00:00
abstract::Butyrate-producing bacteria are promising probiotic candidates to target microbial dysbiosis in gastrointestinal disorders like inflammatory bowel diseases. Butyricicoccus pullicaecorum 25-3(T), a butyrate-producing clostridial cluster IV strain, is such a candidate. Little is known about its abundance in the colon mi...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiv054
更新日期:2015-06-01 00:00:00
abstract::We performed high-throughput 18S rDNA V9 region sequencing analyses of microeukaryote (protist) communities at seven sites with depths ranging from 0 to 1450 m in the southern part of Lake Baikal. We show that microeukaryotic diversity differed according to water column depth and sediment depth. Chrysophytes and perki...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fix073
更新日期:2017-08-01 00:00:00
abstract::This study was conducted to characterize the vertical distribution of bacterial and archaeal communities in the water and sediment of Lake Taihu, which underwent a change in trophic status from oligotrophic to hypertrophic in last half of the 20th century. The results revealed that the bacterial communities in differe...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2009.00761.x
更新日期:2009-11-01 00:00:00
abstract::Microbial community composition is essential for aquatic ecosystem functions and has been explored across diverse environments and various spatial scales. However, documented patterns are often based on samples from spatially/geographically separated locations or sites. Here, we define sampling volume as spatial scale...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fix124
更新日期:2017-10-01 00:00:00
abstract::In an effort to identify the causes and patterns of temporal change in periphytic communities, we examined biomass accumulation, taxonomic and functional composition, rate of species turnover, and pairwise species correlations in response to variability in current velocity and nutrient supply in artificial stream flum...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01302.x
更新日期:2012-05-01 00:00:00
abstract::Managed agricultural ecosystems are unique systems where crops and microbes are intrinsically linked. This study focuses on discerning microbiome successional patterns across all plant organs and tests for evidence of niche differentiation along temporal and spatial axes. Soybean plants were grown in an environmental ...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa206
更新日期:2021-01-08 00:00:00
abstract::The planktonic microbial communities of Lakes Hoare and Bonney were investigated during transition into winter. We hypothesized that the onset of darkness induces changes in the functional role of autotrophic and heterotrophic microplankton. Bacteria decreased in Lake Hoare during March-April, while in Lake Bonney bac...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01423.x
更新日期:2012-11-01 00:00:00
abstract::The abilities of some ascomycetes (Myxotrichaceae) from a Sphagnum bog in Alberta to degrade cellulose, phenolics, and Sphagnum tissue were compared with those of two basidiomycetes. Most Myxotrichaceae degraded cellulose and tannic acid, and removed cell-wall components simultaneously from Sphagnum tissues, whereas t...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2006.00071.x
更新日期:2006-06-01 00:00:00
abstract::A new fluorescence staining and flow cytometry protocol was developed to monitor several physiological states in biocontrol strain Pseudomonas fluorescens DR54 during storage survival in a stationary-phase culture, preparation of clay carrier for seed formulation, and establishment in a sugar beet spermosphere. The hi...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2008.00631.x
更新日期:2009-03-01 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
pub_type: 杂志文章
doi:10.1016/S0168-6496(03)00218-6
更新日期:2003-11-01 00:00:00
abstract::Pollution of nearshore waters with disease-causing microorganisms impacts ecosystems health through illness and deaths in people and wildlife, as well as negative socioeconomic consequences of impaired marine resources. Insight on pathogen ecology in coastal habitats is crucial for accurately mitigating inputs and imp...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiy172
更新日期:2018-11-01 00:00:00
abstract::The primary aim of this study was to determine whether distinct gastrointestinal tract (GIT) microbial communities are established within ingesta and on mucosal surfaces of dairy calves and chickens to evaluate whether the principle of microbial segregation is of broad biological significance. Multivariate analysis of...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2011.01220.x
更新日期:2012-02-01 00:00:00
abstract::Glacial ice and snow are known habitats for cold-adapted microorganisms. Research on cold-adapted yeast biodiversity from Perito Moreno and Mount Tronador glaciers (Patagonia, Argentina), and production of extracellular enzymatic activity at low temperatures (5 and 18 °C), was performed and described in this study. Ni...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01470.x
更新日期:2012-11-01 00:00:00
abstract::Proteins may be an important carbon and nitrogen source to bacteria in aquatic habitats, yet knowledge on the actual utilization of this substrate by proteolytic bacteria is scarce. In this study, Pseudomonas fluorescens ON2 produced an alkaline proteinase (AprX) during growth, and there was no evidence for cell densi...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2011.01285.x
更新日期:2012-04-01 00:00:00
abstract::Stolotermes ruficeps is a widespread, primitive, lower termite occupying dead and decaying wood of many tree species in New Zealand's temperate forests. We identified core bacterial taxa involved in gut processes through combined DNA- and RNA (cDNA)-based pyrosequencing analysis of the 16S nucleotide sequence from fiv...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12424
更新日期:2014-12-01 00:00:00
abstract::Methane is a potent greenhouse gas responsible for 20-30% of global climate change effects. The global methane budget is ∼500-600 Tg y-1, with the majority of methane produced via microbial processes, including anthropogenic-mediated sources such as ruminant animals, rice fields, sewage treatment facilities and landfi...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章,评审
doi:10.1093/femsec/fiz125
更新日期:2019-09-01 00:00:00
abstract::Plant symbioses with fungal root endophytes span a continuum from mutualistic to parasitic outcomes, and are highly variable depending on the genotype of each symbiont. The abiotic context in which interactions occur also seems to influence the outcome of plant-endophyte symbioses, but we lack understanding of its rel...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fix162
更新日期:2018-02-01 00:00:00
abstract::Archaeal communities and the factors regulating their diversity in high altitude lakes are poorly understood. Here, we provide the first high-throughput sequencing study of Archaea from Tibetan Plateau lake sediments. We analyzed twenty lake sediments from the world's highest and largest plateau and found diverse arch...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiw033
更新日期:2016-03-01 00:00:00
abstract::Antimicrobial resistance is one of the most significant challenges facing the global medical community and can be attributed to the use and misuse of antibiotics. This includes use as growth promoters or for prophylaxis and treatment of bacterial infection in intensively farmed livestock from where antibiotics can ent...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiw159
更新日期:2016-10-01 00:00:00
abstract::Nitrate reduction plays a key role in the biogeochemical dynamics and microbial ecology of coastal sediments. Potential rates of nitrate reduction were measured on undisturbed sediment slices from two eutrophic coastal environments using flow-through reactors (FTR). Maximum potential nitrate reduction rates ranged ove...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2006.00155.x
更新日期:2006-11-01 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
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2002.tb01010.x
更新日期:2002-11-01 00:00:00
abstract::Aerobic anoxygenic phototrophic bacteria may play a particular role in carbon cycling of aquatic systems. However, little is known about the interaction between aerobic anoxygenic phototrophic bacteria and hydrochemistry in groundwater-surface water exchange systems of subtropical karst catchments. We carried out a de...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fix065
更新日期:2017-06-01 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
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2001.tb00836.x
更新日期:2001-07-01 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
pub_type: 杂志文章
doi:10.1016/S0168-6496(03)00190-9
更新日期:2003-10-01 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
pub_type: 杂志文章
doi:10.1016/j.femsec.2005.01.014
更新日期:2005-07-01 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
pub_type: 杂志文章
doi:10.1016/j.femsec.2004.10.010
更新日期:2005-03-01 00:00:00
abstract::High-elevation lakes in the tropics are subject to extreme environmental fluctuations and microbes may harbor a unique genomic repertoire, but their composition and diversity are largely unknown. Here, we compared the planktonic bacterial community composition (BCC) and diversity of three tropical lakes located in the...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiy004
更新日期:2018-03-01 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
pub_type: 杂志文章
doi:10.1016/S0168-6496(03)00025-4
更新日期:2003-04-01 00:00:00
abstract::Soil microbes are essential to the continued productivity of sustainably managed agroecosystems. In shade coffee plantations, the relationship between soil microbial composition, soil nutrient availability and coffee productivity have been demonstrated, but the effects of management on the composition of the soil micr...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa164
更新日期:2020-09-01 00:00:00