A5020718058- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Bacteriophages and microbial interactions
- Marine and coastal ecosystems
- Methane Hydrates and Related Phenomena
- Protist diversity and phylogeny
- Wastewater Treatment and Nitrogen Removal
- Marine Biology and Ecology Research
- Polar Research and Ecology
- Biocrusts and Microbial Ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Gut microbiota and health
- Respiratory viral infections research
- Plant Virus Research Studies
- Diatoms and Algae Research
- Marine Bivalve and Aquaculture Studies
- Isotope Analysis in Ecology
- Environmental DNA in Biodiversity Studies
- Industrial Vision Systems and Defect Detection
- Evolution and Paleontology Studies
- Algal biology and biofuel production
- Ocean Acidification Effects and Responses
- Enterobacteriaceae and Cronobacter Research
- Coral and Marine Ecosystems Studies
- Advanced Measurement and Detection Methods
Carl von Ossietzky Universität Oldenburg
2021-2023
National Oceanography Centre
2023
Japan Agency for Marine-Earth Science and Technology
2018-2021
University of Vienna
2013-2018
University of Groningen
2008-2012
Royal Netherlands Institute for Sea Research
2008-2012
Ecosystem Sciences
2012
ELSA
2009-2010
Recent advances in understanding the ecology of marine systems have been greatly facilitated by growing availability metagenomic data, which provide information on identity, diversity and functional potential microbial community a particular place time. Here we present dataset comprising over 5 terabases data from 610 samples spanning diverse regions Atlantic Pacific Oceans. One set metagenomes, collected GEOTRACES cruises, captures large geographic transects at multiple depths per station....
Mesophilic ammonia-oxidizing Archaea (AOA) are abundant in a diverse range of marine environments, including the deep ocean, as revealed by quantification archaeal amoA gene encoding alpha-subunit ammonia monooxygenase. Using two different primer sets, distinct ecotypes Crenarchaeota Group I (MCGI) were detected waters tropical Atlantic and coastal Arctic. The HAC-AOA ecotype (high concentration AOA) was ≈ 8000 times 15 more Arctic top 300 m layer open equatorial Atlantic, respectively, than...
Prochlorococcus and Synechococcus are the dominant primary producers in marine ecosystems perform a significant fraction of ocean carbon fixation. These cyanobacteria interact with diverse microbial community that coexists them. Comparative genomics cultivated isolates has helped address questions regarding patterns evolution diversity among microbes, but can be is miniscule compared to wild. To further probe these groups extend utility reference sequence databases, we report data set single...
Abstract Viruses are an abundant, diverse and dynamic component of marine ecosystems have a key role in the biogeochemical processes ocean by controlling prokaryotic phytoplankton abundance diversity. However, most studies on virus–prokaryote interactions environments been performed nearshore waters. To assess potential variations relation between viruses prokaryotes different oceanographic provinces, we determined viral production throughout water column along latitudinal transect North...
In marine ecosystems, Thaumarchaeota are most likely the major ammonia oxidizers. While concentrations vary by about two orders of magnitude in oceanic water column, archaeal oxidizers (AOA) only one order from surface to bathypelagic waters. Thus, question arises whether key enzyme responsible for oxidation, monooxygenase (amo), exhibits different affinities along column and consequently, there ecotypes AOA present column. We determined abundance phylogeny based on their amoA gene. Two...
Taurine, an amino acid-like compound, acts as osmostress protectant in many marine metazoans and algae is released via various processes into the oceanic dissolved organic matter pool. Taurine transporters are widespread among members of prokaryotic community, tentatively indicating that taurine might be important substrate for prokaryotes ocean. In this study, we determined assimilation respiration throughout water column along two transects North Atlantic off Iberian Peninsula. efficiency...
Throughout coastal Antarctica, ice shelves separate oceanic waters from sunlight by hundreds of meters ice. Historical studies have detected activity nitrifying microorganisms in cavities below permanent shelves. However, little is known about the microbial composition and pathways that mediate these activities. In this study, we profiled communities beneath Ross Ice Shelf using a multi-omics approach. Overall, beneath-shelf are comparable abundance diversity, though distinct composition,...
Abstract Viruses play an important role in the marine ecosystem. However, our comprehension of viruses inhabiting dark ocean, and particular, under Antarctic Ice Shelves, remains limited. Here, we mine single-cell genomic, transcriptomic, metagenomic data to uncover viral diversity, biogeography, activity, their as metabolic facilitators microbes beneath Ross Shelf. This is largest ice shelf with a major impact on global carbon cycle. The community found cavity mainly comprises endemic...
Zooplankton and microbes play a key role in the ocean's biological cycles by releasing consuming copious amounts of particulate dissolved organic matter. Additionally, zooplankton provide complex microhabitat rich inorganic nutrients which bacteria thrive. In this study, we assessed phylogenetic composition metabolic potential microbial communities associated with crustacean species collected North Atlantic. Using Illumina sequencing 16S rRNA gene, found significant differences between those...
To elucidate the potential for nitrification and denitrification processes in a high latitude deep oxygen minimum zone (OMZ) we determined abundance community composition of main microbial players aerobic anaerobic (anammox) ammonium oxidation Gulf Alaska throughout water column. Within dominant bacterial groups, Flavobacterales, Rhodobacterales, Actinomarinales, SAR86 were more abundant epipelagic waters decreased with depth, whereas SAR11, SAR324, Marinimicrobia, Thiomicrospirales...
Macroecological patterns are found in animals and plants, but also micro-organisms. biogeographic distribution marine Archaea, however, have not been studied yet. Ammonia-oxidizing Archaea (AOA) show a bipolar (i.e. similar communities the northernmost southernmost locations, separated by distinct tropical gyral regions) throughout Atlantic, detectable from epipelagic to upper bathypelagic layers (<2000 m depth). This tentatively suggests an influence of conditions organic matter production...
Messenger RNA can provide valuable insights into the variability of metabolic processes microorganisms. However, due to uncertainties that include stability RNA, its application for activity profiling environmental samples is questionable. We explored different factors affecting decay rate transcripts three marine bacterial isolates using qPCR and determined mRNA half-life time specific taxa functional genes by metatranscriptomics a coastal prokaryotic community. The from 11 ranged 1 46 min....
AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 72:215-225 (2014) - DOI: https://doi.org/10.3354/ame01696 Linkage between copepods and bacteria in North Atlantic Ocean Daniele De Corte1,*,**, Itziar Lekunberri1,**, Eva Sintes1, Juan Antonio L. Garcia1, Santiago Gonzales2, Gerhard J. Herndl1,2 1Department of Limnology Oceanography, Center Ecology, University Vienna,...
AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 59:185-195 (2010) - DOI: https://doi.org/10.3354/ame01393 Spatial patterns of bacterial abundance, activity and community composition in relation water masses eastern Mediterranean Sea Taichi Yokokawa1,*, Daniele De Corte1,2, Eva Sintes3, Gerhard J. Herndl1,3 1Department Biological Oceanography, Royal Netherlands...
Viruses are abundant, diverse and dynamic components of the marine environments play a significant role in ocean biogeochemical cycles. To assess potential variations relation between viruses microbes different geographic regions depths, viral microbial abundance production were determined throughout water column along latitudinal transect South Atlantic Ocean. Path analysis was used to examine relationships several abiotic biotic parameters populations distinguished by flow cytometry. The...
Viruses are an abundant, diverse and dynamic component of marine terrestrial ecosystems. In the ocean, viruses play a key role in biogeochemical cycles controlling microbial abundance, diversity evolution. Recent metagenomics studies assessed structure viral community upper ocean. However, little is known about compositional changes communities along deep ocean conveyor belt. To assess potential global deep-water circulation system, water samples were collected core North Atlantic Deep Water...
Summary Microbial communities in Arctic coastal waters experience dramatic changes environmental conditions during the spring to summer transition period, potentially leading major variations relationship between viral and prokaryotic communities. To document these variations, a number of physico‐chemical biological parameters were determined ice‐melting season (Kongsfjorden, Ny‐Ålesund, Spitsbergen). The bacterial abundance increased probably associated increase temperature development...
Abstract Zooplankton grazing onphytoplankton promotes the release of particulate and dissolved organic matter (DOM) into water column therefore plays a key role in cycling aquatic systems. Prokaryotes are main DOM consumers ocean by actively remineralizing transforming it, contributing to its molecular diversification. To explore composition zooplankton‐derived bioavailability natural prokaryotic communities, generated mixed zooplankton community coastal Atlantic off Spain was used as...
We collected surface- and deep-water samples (maximum depth 300 m) during the spring–summer transition in coastal Arctic along a transect Kongsfjorden (Ny-Ålesund, Spitsbergen, Norway) to determine structure of active versus total marine bacterioplankton community using different approaches. Catalysed reporter deposition– fluorescence situ hybridization combined with microautoradiography (MICRO–CARD–FISH) was used abundance activity bacterial groups. The communities were dominated by members...
The ocean contains a large reservoir of dissolved organic matter (DOM) that persists for millennia. Both the very dilute concentrations individual DOM molecules and intrinsic recalcitrance to microbial decay imparted by molecular structure are suggested mechanisms this long residence time. Here, we report an experiment comparing responses surface deep prokaryotes isolated enriched solid‐phase extraction from waters subtropical North Atlantic Ocean. Extracts both depths were qualitatively...
The composition of prokaryotic communities was determined in the meso- and bathypelagic waters funneled through Romanche Fracture Zone (RFZ, 2°7'S, 31°79'W to 0°6'N, 14°33'W) tropical Atlantic. Distinct water masses were identified based on their physical chemical characteristics. bacterial archaeal depth-stratified with a total 116 25 operational taxonomic units (OTUs), respectively, distributed among distinct as revealed by terminal restriction fragment length polymorphism, cloning...