Abstract:
:Marine picocyanobacteria of the genera Prochlorococcus and Synechococcus are major contributors to oceanic primary production. The genera are genetically diverse, comprising several known ecotypes or lineages. However, little is known of the distribution of these lineages over large geographic areas. Here, we analysed the relative abundance of Prochlorococcus ecotypes and Synechococcus lineages at the ocean basin scale along an Atlantic Meridional Transect (AMT) using dot blot hybridization and fluorescence in situ hybridization (FISH) techniques. The transect covered several contrasting oceanic provinces (gyres, upwelling, temperate regions) as well as environmentally 'equivalent' regions in the northern and southern hemisphere (northern and southern gyres and temperate regions). Flow cytometric data revealed a discrete separation in abundance of major picocyanobacterial genera. Prochlorococcus reached highest abundance in oligotrophic regions, while more mesotrophic waters were dominated by Synechococcus. Individual genetic lineages of both Prochlorococcus and Synechococcus showed highly similar distributions in corresponding regions in the northern and southern hemisphere. In addition, Prochlorococcus showed a distinctive depth distribution, with HLI and HLII ecotypes near the surface and co-occurring LL ecotypes further down in the water column. Conversely, Synechococcus generally revealed no obvious depth preference, but did show highly specific distribution at the horizontal scale, with clades I and IV particularly dominating temperate, mesotrophic waters in both the northern and southern hemispheres. The data clearly reveal that specific picocyanobacterial lineages proliferate in similar oceanic provinces separated by large spatial scales. Furthermore, comparison with an earlier AMT dataset suggests that basin scale distribution patterns for Prochlorococcus ecotypes are remarkably reproducible from year to year.
journal_name
Environ Microbioljournal_title
Environmental microbiologyauthors
Zwirglmaier K,Heywood JL,Chamberlain K,Woodward EM,Zubkov MV,Scanlan DJdoi
10.1111/j.1462-2920.2007.01246.xsubject
Has Abstractpub_date
2007-05-01 00:00:00pages
1278-90issue
5eissn
1462-2912issn
1462-2920pii
EMI1246journal_volume
9pub_type
杂志文章abstract::Enhanced biological phosphorus removal (EBPR) exploits the metabolism of polyphosphate-accumulating organisms (PAOs) to remove excess phosphorus (P) from wastewater treatment. Candidatus Accumulibacter phosphatis (Accumulibacter) is the most abundant and well-studied PAO in EBPR systems. In a previous study, we detect...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14576
更新日期:2019-04-01 00:00:00
abstract::The Black Sea is the largest anoxic water basin on Earth and its stratified water column comprises an upper oxic, middle suboxic and a lower permanently anoxic, sulfidic zone. The abundance of sulfate-reducing bacteria (SRB) in water samples was determined by quantifying the copy number of the dsrA gene coding for the...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01413.x
更新日期:2007-12-01 00:00:00
abstract::Regulatory roles of the basic leucine zipper (bZIP) transcription factors (TFs) in fungi have been identified in diverse cellular processes such as development, nutrient utilization and various stress responses. In this study, the 22 Magnaporthe oryzae genes encoding bZIP TFs were systematically characterized. Phyloge...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12633
更新日期:2015-04-01 00:00:00
abstract::Saccharomyces cerevisiae protein kinase Sch9 is one of the downstream effectors of the target of rapamycin (TOR) complex 1 and plays multiple roles in stress resistance, longevity and nutrient sensing. However, the functions of Sch9 orthologs in filamentous fungi, particularly in pathogenic species, have not been char...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12522
更新日期:2015-08-01 00:00:00
abstract::Although Escherichia coli is an important model organism for bacterial research, few studies have explored the nature of temporal variation in E. coli strains within the intestinal tracts of host individuals. In this study the E. coli strains of 54 mountain brushtail possums were sampled on four occasions during a yea...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12088
更新日期:2013-08-01 00:00:00
abstract::There has been a growing interest in the degradation of 2,4,6-trinitrotoluene (TNT) over the last decade, ever since its removal from polluted sites was declared an international environmental priority. Certain aerobic and anaerobic microorganisms are capable of using TNT as an N source, although very few studies have...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01272.x
更新日期:2007-06-01 00:00:00
abstract::The opportunistic human pathogen Acinetobacter baumannii is one of the leading causes of nosocomial infections. The high prevalence of multidrug-resistant strains, a high adaptability to changing environments and an overall pronounced stress resistance contribute to persistence and spread of the bacteria in hospitals ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14951
更新日期:2020-04-01 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
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00900.x
更新日期:2006-02-01 00:00:00
abstract::Verticillium wilt in cotton caused by Verticillium dahliae is one of the most serious plant diseases worldwide. Because no known fungicides or cotton cultivars provide sufficient protection against this pathogen, V. dahliae causes major crop yield losses. Here, an isolated cotton endophytic bacterium, designated Bacil...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12538
更新日期:2015-04-01 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
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2006.01092.x
更新日期:2006-10-01 00:00:00
abstract::Streptomycin is used in arboriculture to control fire blight. Using sheep as a model, multidrug-resistant bacteria in mammals were found to be selected after the intentional release of streptomycin into the environment. Escherichia coli and Staphylococcus spp. were isolated from the faeces and nasal cavities, respecti...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12028
更新日期:2013-01-01 00:00:00
abstract::In a future scenario of increasing temperatures in North-Atlantic waters, the risk associated with the expansion of the harmful, benthic dinoflagellate Ostreopsis cf. siamensis has to be evaluated and monitored. Microscopy observations and spatio-temporal surveys of environmental DNA (eDNA) were associated with Lagran...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15406
更新日期:2021-01-26 00:00:00
abstract::Stable carbon isotope fractionation during dichloromethane (DCM) degradation by methylotrophic bacteria was investigated under aerobic and nitrate-reducing conditions. The strains studied comprise several Hyphomicrobium strains, Methylobacterium, Methylopila, Methylophilus and Methylorhabdus spp. that are considered t...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00878.x
更新日期:2006-01-01 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
pub_type: 杂志文章
doi:10.1111/1462-2920.14113
更新日期:2018-08-01 00:00:00
abstract::Marine Crenarchaeota represent an abundant component of the oceanic microbiota that play an important role in the global nitrogen cycle. Here we report the association of the colonial ascidian Cystodytes dellechiajei with putative ammonia-oxidizing Crenarchaeota that could actively be involved in nitrification inside ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2008.01761.x
更新日期:2008-11-01 00:00:00
abstract::The characteristics that allow one Campylobacter jejuni genotype to succeed over another under the influence of bacteriophage predation have been examined in experimental broiler chickens following the observation that this succession appeared to occur in naturally colonized broiler chicken flocks. Examination of thre...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2007.01351.x
更新日期:2007-09-01 00:00:00
abstract::The presence of two insertion sequences, IS406 and IS407, was tested by polymerase chain reaction (PCR) amplification in 25 strains representing 15 Burkholderia species and the close relative Ralstonia pickettii. A total of 50% of the 25 strains contained at least one of the two insertion sequences (ISs) and a statist...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2001.00251.x
更新日期:2001-12-01 00:00:00
abstract::Sea ice microbial community structure affects carbon and nutrient cycling in polar seas, but its susceptibility to changing environmental conditions is not well understood. We studied the eukaryotic microbial community in sea ice cores recovered near Point Barrow, AK in May 2006 by documenting the composition of the c...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.02126.x
更新日期:2010-03-01 00:00:00
abstract::Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease in Canada. The worldwide genetic structure of Pst populations have been characterized, excluding Canada. Here, we elucidated the genetic structure of the western Canadian Pst population using molecular markers, revealing th...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14067
更新日期:2018-04-01 00:00:00
abstract::Microbial reduction of soluble selenium (Se) or tellurium (Te) species results in immobilization as elemental forms and this process has been employed in soil bioremediation. However, little is known of direct and indirect fungal interactions with Se-/Te-bearing ores. In this research, the ability of Phoma glomerata t...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.15012
更新日期:2020-06-01 00:00:00
abstract::Nitrous oxide (N2 O) is emitted during microbiological nitrogen (N) conversion processes, when N2 O production exceeds N2 O consumption. The magnitude of N2 O production vs. consumption varies with pH and controlling net N2 O production might be feasible by choice of system pH. This article reviews how pH affects enzy...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/1462-2920.14063
更新日期:2018-05-01 00:00:00
abstract::Toxin-antitoxin modules are gene pairs encoding a toxin and its antitoxin, and are found on the chromosomes of many bacteria, including pathogens. Here, we characterize the specific contribution of the TxpA and YqcG toxins in elimination of defective cells from developing Bacillus subtilis biofilms. On nutrient limita...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13471
更新日期:2016-12-01 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
pub_type: 杂志文章
doi:10.1111/1462-2920.15204
更新日期:2020-08-21 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
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2008.01652.x
更新日期:2008-09-01 00:00:00
abstract::The HprK serine kinase is a component of the phosphoenolpyruvate phosphotransferase system (PTS) of bacteria that generally regulates catabolite repression through phosphorylation/dephosphorylation of the PTS protein PtsH at a conserved serine residue. However, many bacteria do not encode a complete PTS or even have a...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14740
更新日期:2019-12-01 00:00:00
abstract::The anaerobic oxidation of methane (AOM) is one of the major sinks for methane on earth and is known to be mediated by at least two phylogenetically different groups of anaerobic methanotrophic Archaea (ANME-I and ANME-II). We present the first comparative in vitro study of the environmental regulation and physiology ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2004.00669.x
更新日期:2005-01-01 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
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00854.x
更新日期:2005-12-01 00:00:00
abstract::Although increasing knowledge suggests that bacteriophages play important roles in regulating microbial ecosystems, phage-bacteria interaction in human oral cavities remains less understood. Here we performed a metagenomic analysis to explore the composition and variation of oral dsDNA phage populations and potential ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12923
更新日期:2016-07-01 00:00:00
abstract::Phages carrying the stx2 gene were detected in a range of sewage samples using a plaque hybridization-based method. After detection, phages were isolated and propagated with a laboratory strain of Escherichia coli as host for characterization purposes. Although it was not possible to conduct propagation or transductio...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2004.00604.x
更新日期:2004-07-01 00:00:00
abstract::Variations in the patterns of diversity of symbionts have been described worldwide on Mimosa pudica, a pan-tropical invasive species that interacts with both α and β-rhizobia. In this study, we investigated if symbiont competitiveness can explain these variations and the apparent prevalence of β- over α-rhizobia. We d...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12286
更新日期:2014-07-01 00:00:00