Peter D Countway

Summary

Affiliation: University of Southern California
Country: USA

Publications

  1. doi request reprint Phylogenetic affiliations of mesopelagic acantharia and acantharian-like environmental 18S rRNA genes off the southern California coast
    Ilana C Gilg
    Department of Biological Sciences, University of Southern California, 3616 Trousdale Pkwy AHF 301, Los Angeles, CA 90089 0371, USA
    Protist 161:197-211. 2010
  2. ncbi request reprint Protistan diversity estimates based on 18S rDNA from seawater incubations in the Western North Atlantic
    Peter D Countway
    Department of Biological Sciences, University of Southern California, Los Angeles, California 90089 0371, USA
    J Eukaryot Microbiol 52:95-106. 2005
  3. pmc Abundance and distribution of Ostreococcus sp. in the San Pedro Channel, California, as revealed by quantitative PCR
    Peter D Countway
    Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089 0371, USA
    Appl Environ Microbiol 72:2496-506. 2006
  4. ncbi request reprint Distinct protistan assemblages characterize the euphotic zone and deep sea (2500 m) of the western North Atlantic (Sargasso Sea and Gulf Stream)
    Peter D Countway
    Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089 0371, USA
    Environ Microbiol 9:1219-32. 2007
  5. pmc Defining DNA-based operational taxonomic units for microbial-eukaryote ecology
    David A Caron
    Department of Biological Sciences, University of Southern California, 3616 Trousdale Parkway, Los Angeles, CA 90089 0371, USA
    Appl Environ Microbiol 75:5797-808. 2009
  6. doi request reprint Estimating Protistan Diversity Using High-Throughput Sequencing
    Sarah K Hu
    Department of Biological Sciences, University of Southern California, Los Angeles, California, 90089, USA
    J Eukaryot Microbiol 62:688-93. 2015
  7. pmc Monthly to interannual variability of microbial eukaryote assemblages at four depths in the eastern North Pacific
    Diane Y Kim
    Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
    ISME J 8:515-30. 2014
  8. ncbi request reprint Marine protistan diversity
    David A Caron
    Department of Biological Sciences, University of Southern California, Los Angeles, California 90089 0371, USA
    Ann Rev Mar Sci 4:467-93. 2012
  9. doi request reprint A combined sequence-based and fragment-based characterization of microbial eukaryote assemblages provides taxonomic context for the Terminal Restriction Fragment Length Polymorphism (T-RFLP) method
    Diane Y Kim
    Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089 0371, USA
    J Microbiol Methods 91:527-36. 2012
  10. ncbi request reprint Use of quantitative real-time PCR to investigate the dynamics of the red tide dinoflagellate Lingulodinium polyedrum
    Stefanie D Moorthi
    Department of Biological Sciences, University of Southern California, 3616 Trousdale Parkway, AHF 301, Los Angeles, CA 90089 0371, USA
    Microb Ecol 52:136-50. 2006

Detail Information

Publications17

  1. doi request reprint Phylogenetic affiliations of mesopelagic acantharia and acantharian-like environmental 18S rRNA genes off the southern California coast
    Ilana C Gilg
    Department of Biological Sciences, University of Southern California, 3616 Trousdale Pkwy AHF 301, Los Angeles, CA 90089 0371, USA
    Protist 161:197-211. 2010
    ..Our CARD-FISH experiments targeting phylotypes from an unidentified clade offer preliminary glimpses into the morphology of these protists, while a morphology for the aphotic acantharian lineages remains unknown at this time...
  2. ncbi request reprint Protistan diversity estimates based on 18S rDNA from seawater incubations in the Western North Atlantic
    Peter D Countway
    Department of Biological Sciences, University of Southern California, Los Angeles, California 90089 0371, USA
    J Eukaryot Microbiol 52:95-106. 2005
    ..Containment resulted in significant shifts in the dominance of these taxa, enabling the presence of previously unobserved phylotypes to be documented after 24 or 72 h of incubation...
  3. pmc Abundance and distribution of Ostreococcus sp. in the San Pedro Channel, California, as revealed by quantitative PCR
    Peter D Countway
    Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089 0371, USA
    Appl Environ Microbiol 72:2496-506. 2006
    ..Our work provides a new technique for quantifying the abundance of Ostreococcus and demonstrates the seasonal dynamics of this genus and its contribution to picoeukaryote biomass at our coastal sampling station...
  4. ncbi request reprint Distinct protistan assemblages characterize the euphotic zone and deep sea (2500 m) of the western North Atlantic (Sargasso Sea and Gulf Stream)
    Peter D Countway
    Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089 0371, USA
    Environ Microbiol 9:1219-32. 2007
    ..These data suggest that particular groups of protistan OTUs formed distinct 'shallow' and 'deep-sea' assemblages across widely spaced oceanic locales...
  5. pmc Defining DNA-based operational taxonomic units for microbial-eukaryote ecology
    David A Caron
    Department of Biological Sciences, University of Southern California, 3616 Trousdale Parkway, Los Angeles, CA 90089 0371, USA
    Appl Environ Microbiol 75:5797-808. 2009
    ..A total of 388 operational taxonomic units were observed for 2,207 sequences obtained from samples collected in the western North Atlantic and eastern North Pacific oceans...
  6. doi request reprint Estimating Protistan Diversity Using High-Throughput Sequencing
    Sarah K Hu
    Department of Biological Sciences, University of Southern California, Los Angeles, California, 90089, USA
    J Eukaryot Microbiol 62:688-93. 2015
    ..Present high-throughput sequencing capabilities are approaching protistan diversity estimation comparable to whole gene sequences. ..
  7. pmc Monthly to interannual variability of microbial eukaryote assemblages at four depths in the eastern North Pacific
    Diane Y Kim
    Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
    ISME J 8:515-30. 2014
    ..Substantial interannual variability was detected for assemblages at all depths and represented the largest source of temporal variability in this temperate coastal ecosystem. ..
  8. ncbi request reprint Marine protistan diversity
    David A Caron
    Department of Biological Sciences, University of Southern California, Los Angeles, California 90089 0371, USA
    Ann Rev Mar Sci 4:467-93. 2012
    ..These activities support the development of predictive models that describe how microbial communities will respond to natural or anthropogenically mediated changes in environmental conditions...
  9. doi request reprint A combined sequence-based and fragment-based characterization of microbial eukaryote assemblages provides taxonomic context for the Terminal Restriction Fragment Length Polymorphism (T-RFLP) method
    Diane Y Kim
    Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089 0371, USA
    J Microbiol Methods 91:527-36. 2012
    ....
  10. ncbi request reprint Use of quantitative real-time PCR to investigate the dynamics of the red tide dinoflagellate Lingulodinium polyedrum
    Stefanie D Moorthi
    Department of Biological Sciences, University of Southern California, 3616 Trousdale Parkway, AHF 301, Los Angeles, CA 90089 0371, USA
    Microb Ecol 52:136-50. 2006
    ..The development of this new approach for enumerating L. polyedrum provides a useful tool for studying the ecology of this important red tide species...
  11. doi request reprint Rapid shifts in the structure and composition of a protistan assemblage during bottle incubations affect estimates of total protistan species richness
    Diane Y Kim
    Department of Biological Sciences, University of Southern California, 3616 Trousdale Parkway, Los Angeles, CA 90089 0371, USA
    Microb Ecol 62:383-98. 2011
    ..Additionally, the rapid increase in the relative abundance of some members of the "rare biosphere" in our results implies an ecological importance of at least some of the taxa comprising the "rare biosphere."..
  12. doi request reprint Effects of temperature on growth rate and gross growth efficiency of an Antarctic bacterivorous protist
    Julie M Rose
    Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
    ISME J 3:252-60. 2009
    ..Results indicated that our Antarctic P. imperforata grew at rates comparable to other polar isolates at ambient polar temperatures, but these low temperatures may be outside the physiological optimum for the isolate...
  13. pmc Marine bacterial, archaeal and protistan association networks reveal ecological linkages
    Joshua A Steele
    Department of Biological Sciences and Wrigley Institute for Environmental Studies, University of Southern California, Los Angeles, CA, USA
    ISME J 5:1414-25. 2011
    ..This approach provides new insights into the natural history of microbes...
  14. doi request reprint QUANTITATIVE REAL-TIME POLYMERASE CHAIN REACTION FOR COCHLODINIUM FULVESCENS (DINOPHYCEAE), A HARMFUL DINOFLAGELLATE FROM CALIFORNIA COASTAL WATERS(1)
    Meredith D A Howard
    Southern California Coastal Water Research Project, Costa Mesa, California 92626, USA Department of Biological Sciences, University of Southern California, Los Angeles, California 90089, USADepartment of Biological Sciences, University of Southern California, Los Angeles, California 90089, USABigelow Laboratory for Ocean Sciences, West Boothbay Harbor, Maine 04575, USACenter for Marine Science, University of North Carolina Wilmington, Wilmington, North Carolina 28409, USADepartment of Ocean Sciences and Institute for Marine Sciences, University of California Santa Cruz, Santa Cruz, California 95064, USA
    J Phycol 48:384-93. 2012
    ..However, the onset of Cochlodinium blooms in central California was consistent with previously reported findings of correlations to decreased surface temperature and increased inputs of nitrogenous nutrients. ..
  15. pmc Investigating microbial eukaryotic diversity from a global census: insights from a comparison of pyrotag and full-length sequences of 18S rRNA genes
    Alle A Y Lie
    Department of Biological Sciences, University of Southern California, Los Angeles, California, USA
    Appl Environ Microbiol 80:4363-73. 2014
    ..The longer reads (>500 bp) that are now becoming available through NGS should provide powerful tools for assessing the diversity of microbial eukaryotic assemblages. ..
  16. doi request reprint Protists are microbes too: a perspective
    David A Caron
    Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089 0371, USA
    ISME J 3:4-12. 2009
    ....
  17. ncbi request reprint The growing contributions of molecular biology and immunology to protistan ecology: molecular signatures as ecological tools
    David A Caron
    Department of Biological Sciences, University of Southern California, Los Angeles, California 90089 0371, USA
    J Eukaryot Microbiol 51:38-48. 2004
    ..These issues include the highly technical nature of some of the molecular methods, the reconciliation of morphology-based and sequence-based species identifications, and the species concept itself...