Abstract:
:Hydrogen (H2 ) is enriched in hot springs and can support microbial primary production. Using a series of geochemical proxies, a model to describe variable H2 concentrations in Yellowstone National Park (YNP) hot springs is presented. Interaction between water and crustal iron minerals yields H2 that partition into the vapour phase during decompressional boiling of ascending hydrothermal fluids. Variable vapour input leads to differences in H2 concentration among springs. Analysis of 50 metagenomes from a variety of YNP springs reveals that genes encoding oxidative hydrogenases are enriched in communities inhabiting springs sourced with vapour-phase gas. Three springs in the Smokejumper (SJ) area of YNP that are sourced with vapour-phase gas and with the most H2 in YNP were examined to determine the fate of H2 . SJ3 had the most H2 , the most 16S rRNA gene templates and the greatest abundance of culturable hydrogenotrophic and autotrophic cells of the three springs. Metagenomics and transcriptomics of SJ3 reveal a diverse community comprised of abundant populations expressing genes involved in H2 oxidation and carbon dioxide fixation. These observations suggest a link between geologic processes that generate and source H2 to hot springs and the distribution of organisms that use H2 to generate energy.
journal_name
Environ Microbioljournal_title
Environmental microbiologyauthors
Lindsay MR,Colman DR,Amenabar MJ,Fristad KE,Fecteau KM,Debes RV 2nd,Spear JR,Shock EL,Hoehler TM,Boyd ESdoi
10.1111/1462-2920.14730subject
Has Abstractpub_date
2019-10-01 00:00:00pages
3816-3830issue
10eissn
1462-2912issn
1462-2920journal_volume
21pub_type
杂志文章abstract::Vibrio cholerae's capacity to cause outbreaks of cholera is linked to its survival and adaptability to changes in aquatic environments. One of the environmental conditions that can vary in V. cholerae's natural aquatic habitats is calcium (Ca(+2)). In this study, we investigated the response of V. cholerae to changes ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.01923.x
更新日期:2009-08-01 00:00:00
abstract::Sub-seafloor sediments are populated by large numbers of microbial cells but not much is known about their metabolic activities, growth rates and carbon assimilation pathways. Here we introduce a new method enabling the sensitive detection of microbial lipid production and the distinction of auto- and heterotrophic ca...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2012.02739.x
更新日期:2012-06-01 00:00:00
abstract::In aerobic chemostat cultures maintained at 50% dissolved O(2) tension (3.5 mg l(-1) dissolved O(2)), Shewanella oneidensis strain MR-1 rapidly aggregated upon addition of 0.68 mM CaCl(2) and retained this multicellular phenotype at high dilution rates. Confocal microscopy analysis of the extracellular matrix material...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2008.01608.x
更新日期:2008-07-01 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::The microbiota that colonizes the human intestinal tract is complex and its structure is specific for each of us. In this study we expand the knowledge about the stability of the subject-specific microbiota and show that this ecosystem is stable in short-term intervals (< 1 year) but also during long periods of time (...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12023
更新日期:2012-10-15 00:00:00
abstract::Drylands are the largest terrestrial biome on Earth and a ubiquitous feature is desert pavement terrain, comprising rocks embedded in the mineral soil surface. Quartz and other translucent rocks are common and microbial communities termed hypoliths develop as biofilms on their ventral surfaces. In extreme deserts thes...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/j.1462-2920.2012.02821.x
更新日期:2012-09-01 00:00:00
abstract::A 47 kb genomic island (GEI) bracketed by 50 bp direct repeats, containing 52 annotated genes, was found to delete spontaneously from the genome of Desulfovibrio vulgaris Hildenborough. The island contains genes for site-specific recombinases and transposases, rubredoxin:oxygen oxidoreductase-1 (Roo1) and hybrid clust...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2008.01823.x
更新日期:2009-04-01 00:00:00
abstract::Photosynthetic microorganisms play a crucial role in the marine environment. In vast areas of the oceans, marine primary productivity is performed by cells smaller than 2-3 micro m (picoplankton). Here, we report on molecular analyses of the conserved photosynthetic psbA gene (coding for protein D1 of photosystem II r...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2003.00403.x
更新日期:2003-03-01 00:00:00
abstract::Bacillus thuringiensis ssp. israelensis (Bti) produces four Cry toxins (Cry4Aa, Cry4Ba, Cry10Aa and Cry11Aa), and two Cyt proteins (Cyt1Aa and Cyt2Ba), toxic to mosquito-larvae of the genus Aedes, Anopheles and Culex, important human disease vectors that transmit dengue virus, malaria and filarial parasites respective...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.02117.x
更新日期:2010-03-01 00:00:00
abstract::The severe environmental stresses of the Arctic may have promoted unique soil bacterial communities compared with those found in lower latitude environments. Here, we present a comprehensive analysis of the biogeography of soil bacterial communities in the Arctic using a high resolution bar-coded pyrosequencing techni...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2010.02277.x
更新日期:2010-11-01 00:00:00
abstract::Macroalgae are important ecosystem engineers in temperate marine waters. The function of macroalgae is intimately linked to the composition and structure of their epibiotic bacterial, communities, and evidence has emerged that bacteria can also have a negative impact on their host by causing disease. A few examples ex...
journal_title:Environmental microbiology
pub_type: 杂志文章,评审
doi:10.1111/1462-2920.12288
更新日期:2014-04-01 00:00:00
abstract::Arctic marine microbes are affected by environmental changes that may ultimately influence their functions in carbon cycling. Here, we investigated in concert the structure and enzymatic activities of pelagic, particle-associated and benthic bacterial communities in the central Arctic Ocean, and used these data to eva...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14304
更新日期:2018-08-01 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
pub_type: 杂志文章
doi:10.1111/1462-2920.14515
更新日期:2019-02-01 00:00:00
abstract::The bacteria in the fruitfly Drosophila melanogaster of different life stages was quantified by 454 pyrosequencing of 16S rRNA gene amplicons. The sequence reads were dominated by 5 operational taxonomic units (OTUs) at ≤ 97% sequence identity that could be assigned to Acetobacter pomorum, A. tropicalis, Lactobacillus...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2011.02511.x
更新日期:2011-07-01 00:00:00
abstract::The distribution of respiratory quinone electron carriers among cultivated organisms provides clues on both the taxonomy of their producers and the redox processes these are mediating. Our study of the quinone inventories of 25 archaeal species belonging to the phyla Eury-, Cren- and Thaumarchaeota facilitates their u...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13086
更新日期:2016-02-01 00:00:00
abstract::To reveal mycovirus diversity, we conducted a search of as-yet-unexplored Mediterranean isolates of the phytopathogenic ascomycete Rosellinia necatrix for virus infections. Of seventy-nine, eleven fungal isolates tested RNA virus-positive, with many showing coinfections, indicating a virus incidence of 14%, which is s...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14065
更新日期:2018-04-01 00:00:00
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 rice blast fungus Magnaporthe oryzae has eight regulators of G-protein signaling (RGS) and RGS-like proteins (MoRgs1 to MoRgs8) that exhibit both distinct and shared regulatory functions in the growth, differentiation and pathogenicity of the fungus. We found MoRgs7 with a unique RGS-seven transmembrane (7-TM) dom...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14102
更新日期:2018-09-01 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
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2010.02354.x
更新日期:2011-02-01 00:00:00
abstract::The depth distribution and diversity of sulphate-reducing bacteria (SRB) was analysed in the upper intertidal zone of a sandy marine sediment of the Dutch island Schiermonnikoog. The upper centimetre of the sediment included the oxic-anoxic interface and was cut into five slices. With each slice, most probable number ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2000.00123.x
更新日期:2000-08-01 00:00:00
abstract::Studies assessing the effects of anthropogenic inputs on the taxonomic and functional diversity of bacterioplankton communities in lotic ecosystems are limited. Here, we applied 16S rRNA gene amplicon and whole-genome shotgun sequencing to examine the microbial diversity in samples from the Kalamas River (Northwest Gr...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13303
更新日期:2016-12-01 00:00:00
abstract::Pathogenic bacteria associated with freshwater ecosystems can pose significant health risks particularly where recreational water use is popular. Common water quality assessments involve quantifying indicator Escherichia coli within the water column but neglect to consider physical and geochemical factors and contribu...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14860
更新日期:2020-02-01 00:00:00
abstract::The transcription of S-PM2 phage following infection of Synechococcus sp. WH7803, a marine cyanobacterium, was analysed by quantitative real-time PCR. Unlike the distantly related coliphage T4, there were only two (early and late) instead of three (early, middle and late) classes of transcripts during the developmenta...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2005.00969.x
更新日期:2006-05-01 00:00:00
abstract::Marine sponges constitute major parts of coral reefs and deep-water communities. They often harbour high amounts of phylogenetically and physiologically diverse microbes, which are so far poorly characterized. Many of these sponges regulate their internal oxygen concentration by modulating their ventilation behaviour ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2009.01944.x
更新日期:2009-09-01 00:00:00
abstract::Exopolysaccharide is a critical biofilm matrix component, yet little is known about how the synthesis of multiple exopolysaccharides is regulated. Pseudomonas aeruginosa can produce several biofilm matrix exopolysaccharides that include alginate, Psl and Pel. Here we demonstrated that AlgC, a key enzyme that provides ...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/j.1462-2920.2012.02753.x
更新日期:2012-08-01 00:00:00
abstract::The diversity of microbial eukaryotes was surveyed by environmental sequencing from tropical lagoon sites of the South Pacific, collected through the American Museum of Natural History (AMNH)'s Explore21 expedition to the Solomon Islands in September 2013. The sampled lagoons presented low nutrient concentrations typi...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13523
更新日期:2016-12-01 00:00:00
abstract::Previous studies of hot (>80 degrees C) microbial ecosystems have primarily relied on the study of pure cultures or analysis of 16S rDNA sequences. In order to gain more information on anaerobic metabolism by natural communities in hot environments, sediments were collected from a shallow marine hydrothermal vent syst...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1046/j.1462-2920.2003.00441.x
更新日期:2003-07-01 00:00:00
abstract::Mas5, a yeast heat shock protein classified to the Hsp40 group, is homologous to bacterial archetype DnaJ but functionally unexplored in filamentous fungi. Here we identify a Mas5 homologue (46.86 kDa) in Beauveria bassiana and show its indispensability for host infection and environmental adaptation of the fungal ins...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.13197
更新日期:2016-03-01 00:00:00
abstract::Contaminated soils are subject to diurnal and seasonal temperature variations during on-site ex-situ bioremediation processes. We assessed how diurnal temperature variations similar to that in summer at the site from which petroleum hydrocarbon-contaminated soil was collected affect the soil microbial community and th...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.12846
更新日期:2015-12-01 00:00:00
abstract::The mqsRA operon encodes a toxin-antitoxin pair that was characterized to participate in biofilm and persister cell formation in Escherichia coli. Notably, the antitoxin MqsA possesses a C-terminal DNA-binding domain that recognizes the [5'-AACCT(N)2-4 AGGTT-3'] motif and acts as a transcriptional regulator controllin...
journal_title:Environmental microbiology
pub_type: 杂志文章
doi:10.1111/1462-2920.14538
更新日期:2019-05-01 00:00:00