A5064647640- Bacteriophages and microbial interactions
- Microbial Community Ecology and Physiology
- Plant Virus Research Studies
- Animal Virus Infections Studies
- Viral gastroenteritis research and epidemiology
- Protist diversity and phylogeny
- Marine and coastal ecosystems
- Marine and fisheries research
- Ocean Acidification Effects and Responses
- Respiratory viral infections research
- thermodynamics and calorimetric analyses
- Algal biology and biofuel production
- Infectious Encephalopathies and Encephalitis
- Wastewater Treatment and Nitrogen Removal
- Species Distribution and Climate Change
- Aquaculture disease management and microbiota
- Marine animal studies overview
- Oil Spill Detection and Mitigation
- Microbial infections and disease research
- Genomics and Phylogenetic Studies
- Isotope Analysis in Ecology
Scripps Institution of Oceanography
2016-2024
University of California, San Diego
2016-2024
University of Arizona
2015-2022
J. Craig Venter Institute
2016-2021
Oceanography Society
2016
Institut de Recherche sur les Phénomènes Hors Équilibre
2015
Viruses influence ecosystems by modulating microbial population size, diversity, metabolic outputs, and gene flow. Here, we use quantitative double-stranded DNA (dsDNA) viral-fraction metagenomes (viromes) whole viral community morphological data sets from 43 Tara Oceans expedition samples to assess patterns structure in the upper ocean. Protein cluster cataloging defined pelagic upper-ocean pan core suggested that this sequence space is well-sampled. Analyses of protein clusters,...
beaches along the central and southern coast of California.Bluefin tuna appeared in record numbers California waters.Such shifts migration this scale had not been previously observed for nektonic species (Table 1).The consequences WWA were far-reaching, may presage future ecological as global temperatures rise.FIGURE 1. Sea surface temperature (SST) anomalies showing progression warm water anomaly (WWA) from December 2013 through January 2016 northeastern Pacific Ocean.
Viruses strongly influence microbial population dynamics and ecosystem functions. However, our ability to quantitatively evaluate those viral impacts is limited the few cultivated viruses double-stranded DNA (dsDNA) genomes captured in quantitative metagenomes (viromes). This leaves ecology of non-dsDNA nearly unknown, including single-stranded (ssDNA) that have been frequently observed viromes, but not quantified due amplification biases sequencing library preparations (Multiple...
Agulhas rings provide the principal route for ocean waters to circulate from Indo-Pacific Atlantic basin. Their influence on global circulation is well known, but their role in plankton transport largely unexplored. We show that, although coarse taxonomic structure of communities continuous across choke point, South diversity altered compared with Indian Ocean source populations. Modeling and situ sampling a young ring indicate that strong vertical mixing drives complex nitrogen cycling,...
Diatoms are a dominant group of eukaryotic phytoplankton that contribute substantially to global primary production and the cycling important elements such as carbon nitrogen. Heterotrophic bacteria, including members gammaproteobacteria, commonly associated with diatom populations may rely on them for organic while potentially competing other essential nutrients. Considering bacterioplankton drive oceanic release CO 2 (i.e., bacterial respiration) diatoms ocean sequestration vial biological...
Abstract Microbial communities in oxygen minimum zones (OMZs) are known to have significant impacts on global biogeochemical cycles, but viral influence microbial processes these regions much less studied. Here we provide baseline ecological patterns using microscopy and metagenomics from the Eastern Tropical North Pacific (ETNP) OMZ region that enhance our understanding of viruses climate-critical systems. While extracellular abundance decreased below oxycline, diversity lytic infection...
Diatoms are major players in the global carbon cycle, and their metabolism is affected by ocean conditions. Understanding impact of changing inorganic nutrients oceans on diatoms crucial, given changes dioxide levels. Here, we present a genome-scale metabolic model (
Viruses affect biogeochemical cycling, microbial mortality, gene flow, and metabolic functions in diverse environments through infection lysis of microorganisms. Fundamental to quantitatively investigating these roles is the determination viral abundance both field laboratory samples. One current, widely used method accomplish this with aquatic samples "filter mount" method, which are filtered onto costly 0.02-μm-pore-size ceramic filters for enumeration viruses by epifluorescence...
Bacterial viruses (phages) influence global biogeochemical cycles by modulating bacterial mortality, metabolic output and evolution. However, our understanding of phage infections is limited few methods environmentally relevant model systems. Prior work showed that Cellulophaga baltica ϕ38:1 infects its original host lytically, an alternative either delayed lytically or lysogenically. Here we investigate these through traditional marker-based approaches, introduce geneELISA for...
The fate of oceanic carbon and nutrients depends on interactions between viruses, prokaryotes, unicellular eukaryotes (protists) in a highly interconnected planktonic food web. To date, few controlled mechanistic studies these exist, where they do, are largely pairwise, focusing either viral infection (i.e., virocells) or protist predation. Here we studied population-level responses Synechococcus cyanobacterial virocells cyanovirocells) to the Oxyrrhis marina using transcriptomics, endo-...