doi.org\/10.3389\/fmars.2018.00013<\/a>.<\/p>\n2017\u00a0\u00a0\u00a0 Gast RJ.<\/strong>\u00a0 Centrohelida and other heliozoan-like protists. In Handbook of the Protists 2nd<\/sup> Edition, pp. 955-971.\u00a0 Eds.\u00a0 JM Archbald, AGB Simpson & CH Slamovitz, Springer International Publishing.<\/p>\n2017\u00a0\u00a0\u00a0 Caron DA, RJ Gast<\/strong> and M-E Garneau. Sea ice as a habitat for micrograzers.\u00a0 In Sea Ice 3rd<\/sup> Edition, pp. 370-393. \u00a0Ed DN Thomas, Wiley & Sons, Ltd.<\/p>\n2017\u00a0\u00a0\u00a0 Stamatakis, K, D Vayenos, C Kotakis, RJ Gast<\/strong> and GC Papagerorgiou. The extraordinary longevity of kleptoplasts derived from the Ross Sea haptophyte Phaeocystis antarctica<\/em> within dinoflagellate host cells relates to the diminished role of the oxygen-evolving Photosystem II and to supplementary light harvesting by mycosporine-like amino acids. Biochimica et Biophysica Acta 1858:189-195.<\/p>\n2015\u00a0\u00a0\u00a0 SK Hu, Z Liu, AAY Lie, PD Countway, DY Kim, AC Jones, RJ Gast<\/strong>, SC Cary, EB Sherr, BF Sherr and DA Caron. Estimating protistan diversity using high-throughput sequencing. Journal of Eukaryotic Microbiology 62(5):688-693.<\/p>\n2015\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, S Elgar and B Raubenheimer. Observations of transport of bacterial-like microspheres through beach sand. Continental Shelf Research 97(1):1-6.<\/p>\n2015\u00a0\u00a0\u00a0 Halliday, E, DK Ralston and RJ Gast<\/strong>. Contribution of sand associated enterococci to dry weather water quality. Environmental Science and Technology 49(1):451-458.<\/p>\n2015\u00a0\u00a0\u00a0 McKie-Krisberg, Z, RJ Gast<\/strong> and RW Sanders. Physiological responses of three species of Antarctic mixotrophic phytoflagellates to changes in light and dissolved nutrients: insights into survival in an extreme environment. Microbial Ecology doi: 10.1007\/s00248-014-0543-x.<\/p>\n2014\u00a0\u00a0\u00a0 Halliday, E, SL McLellan, LA Amaral-Zettler, ML Sogin and RJ Gast<\/strong>. Comparison of bacterial communities in sands and water at beaches with bacterial water quality violations. PlosOne 9:e90815.<\/p>\n2014\u00a0\u00a0\u00a0 Sellers, CG, RJ Gast<\/strong> and RW Sanders. Selective feeding and foreign plastid retention in an Antarctic dinoflagellate. Journal of Phycology 50:1081-1088<\/p>\n2014\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, Z McKie-Krisberg, SA Fay, JM Rose, and RW Sanders. Antarctic mixotrophic protist abundances by microscopy and molecular methods. FEMS Microbiology Ecology DOI: 10.1111\/1574-6941.12334<\/p>\n2014 \u00a0\u00a0 Rengefors, K, R Logares, J Laybourn-Parry, RJ Gast<\/strong>. Evidence of concurrent local adaptation and high phenotypic plasticity in a polar microeukaryote. Environmental Microbiology DOI:\u00a010.1111\/1462-2920.12571<\/p>\n2014 \u00a0\u00a0 Halliday E, S McClellan, L Amaral-Zettler, M Sogin, and RJ Gast<\/strong>. Comparison of bacterial communities in sands and water at beaches with bacterial water quality violations. PLOSOne DOI: 10.1371\/journal.pone.0090815<\/p>\n2014\u00a0\u00a0\u00a0 Lie, A, Z Liu, S Hu, A Jones, D Kim, P Countway, L Amaral-Zettler, C Cary, E Sherr, B Sherr, RJ Gast<\/strong> and D Caron. Investigating microbial eukaryotic diversity from a global census: Insights from a comparison of pyrotag and full-length sequences of 18S rRNA gene sequences. Applied and Environmental Microbiology 80:4363-4373.<\/p>\n2013\u00a0\u00a0\u00a0 Fay, SA, RJ Gast<\/strong>, & RW Sanders. Linking bacterivory and phyletic diversity of protists with a marker gene survey and experimental feeding with BrdU-labeled bacteria. Aquatic Microbial Ecology 71:141-153.<\/p>\n2013\u00a0\u00a0\u00a0 Rose, JM, E Fitzpatrick, A Wang, RJ Gast<\/strong> and DA Caron. Low temperature constrains growth rate but not short-term ingestion rates of Antarctic ciliates. Polar Biology 36:645-659.<\/p>\n2012 \u00a0\u00a0 Sanders, RW and RJ Gast<\/strong>. Bacterivory by phototrophic picoplankton and nanoplankton in Arctic waters. FEMS Microbiology Ecology 82(2):242-253.<\/p>\n2012\u00a0\u00a0\u00a0 First, MR Park, NY, Berrang, ME, Meinersmann, RJ, Bernhard, JM, Gast, RJ<\/strong> and JT Hollibaugh. Ciliate ingestion and digestion: Flow cytometric measurements and regrowth of a digestion-resistant Campylobacter jejuni. 2012. Journal of Eukaryotic Microbiology 59:12-19.<\/p>\n2011 \u00a0\u00a0 Kim DY, PD Countway, RJ Gast<\/strong> and DA Caron. Rapid shifts in the structure and composition of a protistan assemblage during bottle incubations affect estimates of total protistan species richness. Microbial Ecology 62(2):383-398.<\/p>\n2011 \u00a0\u00a0 Gast RJ,<\/strong> L Gorrell, B Raubenheimer and S Elgar. Impact of erosion and accretion on the distribution of enterococci in beach sands. Continental Shelf Research 31:1475-61.<\/p>\n2011\u00a0\u00a0\u00a0 Halliday, E and RJ Gast. Bacteria in beach sand: An emerging challenge in protecting coastal water quality and bather health. Environmental Science and Technology 45(2):370-79.<\/p>\n
2011 \u00a0\u00a0 Gast, RJ<\/strong>, DM Moran, MR Dennett, W Wurtsbaugh and L Amaral-Zettler. Amoebae and Legionella pneumophila<\/em> in coastal marine environments. Journal of Water and Health 9(1):37-52.<\/p>\n2011\u00a0\u00a0\u00a0 Edgcomb VP, D Beaudoin, RJ Gast<\/strong>, JF Biddle and A Teske. Marine Subsurface Eukaryotes: The Fungal Majority. Environmental Microbiology 13(1):172-183.<\/p>\n2010 \u00a0\u00a0 Schnetzer A, SD Moorthi, PD Countway, RJ Gast<\/strong>, IJ Gilg and DA Caron. Depth matters: Microbial eukaryote diversity and community structure in the eastern North Pacific revealed through environmental gene libraries. Deep-Sea Research Part I 58(1): 16-26.<\/p>\n2010\u00a0\u00a0\u00a0 Halliday, E JF Griffith, and RJ Gast<\/strong>. Use of an exogenous plasmid standard and quantitative PCR to monitor spatial and temporal distribution of Enterococcus spp. in beach sands Limnology & Oceanography Methods 8:146-154.<\/p>\n2009\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, RW Sanders and DA Caron. Ecological strategies of protists and their symbiotic relationships with prokaryotic microbes Trends in Microbiology 17:563-569.<\/p>\n2009 \u00a0\u00a0 Moorthi, S, DA Caron, RJ Gast<\/strong> and RW Sanders. Mixotrophy: a widespread and important ecological strategy or planktonic and sea-ice nanoflagellates in the Ross Sea, Antarctica Aquatic Microbial Ecology 54:269-277.<\/p>\n2009 \u00a0\u00a0 Caron, DA, PD Countway, P Savai, RJ Gast<\/strong>, A Schnetzer, SD Moorthi, MR Dennett, DM Moran and AC Jones Defining DNA-based operational taxonomic units for microbial eukaryote ecology Applied and Environmental Microbiology Vol. 75, No. 18, aem0298-09.<\/p>\n2009\u00a0\u00a0\u00a0 Rose JM, Gast RJ<\/strong>, Bogomolni A, Ellis J, Lentell B, Touhey K and M Moore.\u00a0\u00a0 Occurrence and patterns of antibiotic resistance in vertebrates off the Northeastern United States coast. FEMS Microbiology Ecology 67:421\u2013431.<\/p>\n2008\u00a0\u00a0\u00a0 Amaral-Zettler LA, Rocca JD, Lamotagne MC, Dennett MR and RJ Gast<\/strong>. Changes in microbial community structure in the wake of Hurricanes Katrina and Rita. Environmental Science and Technology 42:9072-9078.<\/p>\n2008\u00a0\u00a0\u00a0 Stewart JR, Gast RJ<\/strong>, Fujioka RS, Solo-Gabriele HM, Meschke S, Amaral-Zettler LA, Del Castillo E, Polz MF, Collier TK, Strom MS, Sinigalliano CD, Moeller PDR and AF Holland. The coastal environment and human health: Microbial indicators, pathogens, sentinels and reservoirs. Environmental Health 7(Suppl 2):S3 doi:10.1186\/1478-069X-7-S2-S3.<\/p>\n2008\u00a0\u00a0\u00a0 Kite-Powell, HL, Fleming, LE, Backer, LC, Faustman, E, Hoagland, P, Tsuchiya, A, Younglove, L, Wilcox, BA, and Gast, RJ<\/strong>. Linking the oceans to public health: current efforts and future directions. Environmental Health 7(Suppl 2):S6 doi:10.1186\/1476-069X-7-S2-S6.<\/p>\n2008\u00a0\u00a0\u00a0 Gast RJ<\/strong>, Moran DM, Audemard C, Lyons MM, Defaveri J, Reece KS, Leavitt D and R Smolowitz. Environmental distribution and persistence of Quahog Parasite Unknown (QPX). Diseases of Aquatic Organisms 81(3):219-229.<\/p>\n2008\u00a0\u00a0\u00a0 Bogomolni A, Gast RJ<\/strong>, Ellis J, Dennett M, Pugliares K and M Moore. Vectors or Victims? Marine vertebrate zoonoses from coastal waters of the Northwest Atlantic. Diseases of Aquatic Organisms 81(1):13-38.<\/p>\n2008\u00a0\u00a0\u00a0 Lasek-Nesselquist E, Bogomolni A, Gast RJ<\/strong>, Mark Welch D, Ellis J, Sogin ML and M Moore. Molecular characterization of Giardia intestinalis<\/em> haplotypes in marine animals: variation and zoonotic potential. Diseases of Aquatic Organisms 81(1):39-51.<\/p>\n2008\u00a0\u00a0\u00a0 Caron, DA and RJ Gast<\/strong>. The diversity of free-living protists: seen and unseen, cultured and uncultured. In Accessing Uncultured Microorganisms: From the Environment to Organisms and Genomes and Back. Ed K Zengler ASM Press, Washington, DC, 320 pp.<\/p>\n2007\u00a0\u00a0\u00a0 Caraguel, CGB, BM Depres, CJ O\u2019Kelly, S Frasca Jr., RJ Gast<\/strong>, RJ Cawthorn and SJ Greenwood. Microheterogeneity and coevolution: an examination of the relationship between Neoparamoeba pemaquidensis<\/em> and its prokinetoplastid endosymbiont. Journal of Eukaryotic Microbiology 54(5):418-426.<\/p>\n2007\u00a0\u00a0\u00a0 Shimeta, J, RJ Gast<\/strong> and JM Rose. Community structure of marine sedimentary protists in relation to flow and grain size. Aquatic Microbial Ecology 48:91-104.<\/p>\n2007\u00a0\u00a0\u00a0 Sinigalliano, CD, Gidley, ML, Shibata, T, Whitman, D, Dixon, TH, Laws, E, Hou, A, Bachoon, D, Brand, L, Amaral-Zettler, L, Gast R<\/strong>, Steward, GF, Nigro, OD, Fujioka, R, Betancourt, WQ, Vithanage, G, Mathews, J, Fleming, LE and HM Solo-Gabriele. Impact of Hurricanes Katrina and Rita on the microbial landscape of the New Orleans area PNAS 104: 9029-9034.<\/p>\n2007\u00a0\u00a0\u00a0 Moran, DM, OR Anderson, MR Dennett, DA Caron and RJ Gast<\/strong>. A description of seven Antarctic marine Gymnamoebae including a new subspecies, two new species and a new genus: Neoparamoeba aestuarina antarctica<\/em> n. subsp., Platyamoeba oblongata<\/em> n. sp., Platyamoeba contorta<\/em> n. sp. and Vermistella antarctica<\/em> n. gen. n. sp. Journal of Eukaryotic Microbiology 54(2):169-183.<\/p>\n2007\u00a0\u00a0\u00a0 Countway, PD, RJ Gast<\/strong>, MR Dennett, P Savai, JM Rose and DA Caron. Distinct protistan assemblages characterize the euphotic zone and deep sea (2500m) of the western North Atlantic (Sargasso Sea and Gulf Stream). Environmental Microbiology 9(5):1219-1232.<\/p>\n2007\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, DM Moran, MR Dennett and DA Caron. Kleptoplasty in an Antarctic dinoflagellate; caught in evolutionary transition? Environmental Microbiology 9(1):39-45.<\/p>\n2006\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, E Cushman*, DM Moran, K Uhlingher, D Leavitt and R Smolowitz. DGGE-based method for detection of Quahog Parasite Unknown (QPX). Diseases of Aquatic Organisms 70:115-122.<\/p>\n2006\u00a0\u00a0\u00a0 Gast, RJ.<\/strong> Molecular Phylogeny of a Dinoflagellate Parasite from the Solitary Radiolarian, Thalassicolla nucleate<\/em>. Journal of Eukaryotic Microbiology 53(1):43-45.<\/p>\n2006\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, DJ Beaudoin, DM Moran, JN Blythe, MR Dennett and DA Caron. High abundance of a novel dinoflagellate phylotype in the Ross Sea, Antarctica. Journal of Phycology 42:233-242.<\/p>\n2006\u00a0\u00a0\u00a0 Lyons, MM, R Smolowitz, KR Uhlinger, RJ Gast<\/strong> and JE Ward. Lethal marine snow: pathogen of bivalve mollusk concealed in marine aggregates. Limnology and Oceanography 50(6):1983-1988.<\/p>\n2005\u00a0\u00a0\u00a0 Mullen, TE, KR Nevis, CJ O\u2019Kelly, RJ Gast<\/strong> and S Frasca Jr. Nuclear small-subunit ribosomal RNA gene-based characterization, molecular phylogeny and PCR detection of the Neoparamoeba<\/em> from Western Long Island Sound lobsters. Journal of Shellfish Research 24(3):719-731.<\/p>\n2005\u00a0\u00a0\u00a0 Frasca Jr., S, ES Weber, H Urquhart, T Wheeler, X Liao, M Gladd, K Cecchini, P Hudson, M May, RJ Gast<\/strong>, TS Gorton and SJ Geary. Isolation and characterization of Mycoplasma sphenisci<\/em> sp. nov., from the choana of an aquarium-reared jackass penguin (Spheniscus demersus) Journal of Clinical Microbiology 43(6):2976-2979.<\/p>\n2005\u00a0\u00a0\u00a0 Countway, PD, RJ Gast<\/strong>, P Savai and DA Caron. Protistan diversity estimates based on 18S rDNA from seawater incubations in the western N. Atlantic. Journal of Eukaryotic Microbiology 52(2): 95-106.<\/p>\n2004\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, MR Dennett and DA Caron. Characterization of Protistan Assemblages in the Ross Sea, Antarctica by Denaturing Gradient Gel Electrophoresis. Applied Environmental Microbiology 70:2028-2037.<\/p>\n2003\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, DJ Beaudoin and DA Caron. Isolation of symbiotically expressed genes from the dinoflagellate symbiont of the solitary radiolarian Thalassicolla nucleata Biological Bulletin 204:210-214.<\/p>\n2001\u00a0\u00a0\u00a0 Gast, RJ<\/strong> and DA Caron. Photosymbiotic associations in planktonic forminifera and radiolaria. Hydrobiologia 461:1-7.<\/p>\n2001\u00a0\u00a0\u00a0 Gast, RJ<\/strong>. Development of an Acanthamoeba<\/em>-specific reverse dot blot and the discovery of a new ribotype. Journal of Eukaryotic Microbiology 48:609-615.<\/p>\n2000\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, TA McDonnell* and DA Caron. srDNA-based taxonomic affinities of algal symbionts from a planktonic foraminifer and a solitary radiolarian. J. Pycol. 36:172-7.<\/p>\n1999\u00a0\u00a0\u00a0 Caron, DA, RJ Gast<\/strong>, EL Lim and MR Dennett. Protistan community structure: molecular approaches for answering ecological questions. Hydrobiologia. 401:215-227.<\/p>\n1999\u00a0\u00a0\u00a0 Caron, DA, EL Lim, MR Dennett, RJ Gast<\/strong>, C Kosman and EF DeLong. Molecular phylogenetic analysis of the heterotrophic chrysophyte Paraphysomonas, and the design on rRNA-targeted oligonucleotide probes for two species. J. Phycol. 35:824-837.<\/p>\n1998\u00a0\u00a0\u00a0 Stothard, DR, J Diedrich-Schroeder, MH Awwad, RJ Gast<\/strong>, DR Ledee, SR Zaragoza, C Williams, PA Fuerst and TJ Byers. The evolutionary history of the genus Acanthamoeba<\/em> and the identification of eight new 18S rRNA gene sequence types. J. Euk. Microbiol. 45(1):45-54.<\/p>\n1996\u00a0\u00a0\u00a0 Gast, RJ<\/strong> and D. Caron. Molecular phylogeny of symbiotic dinoflagellates from planktonic foraminifera and radiolaria. Mol. Biol. Evol. 13(9):1192-1197.<\/p>\n1996\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, DR Ledee, PA Fuerst and TJ Byers. Subgenus Systematics of Acanthamoeba<\/em>: Four Nuclear 18S rDNA Sequence Types. J. Euk. Microbiol. 43(6):498-504.<\/p>\n1995\u00a0\u00a0\u00a0 Gast, RJ<\/strong> and TJ Byers. Genus- and subgenus-specific oligonucleotide probes for Acanthamoeba<\/em>.\u00a0\u00a0 Mol. Biochem. Parasitol. 71; 255-260.<\/p>\n1994\u00a0\u00a0\u00a0 Gast, RJ<\/strong>, PA Fuerst and TJ Byers. Discovery of group I introns in the nuclear small subunit ribosomal RNA genes of Acanthamoeba<\/em>. Nucleic Acids Res. 22(4):592-596.<\/p>\n1994\u00a0\u00a0\u00a0 Weekers, PHH, RJ Gast<\/strong>, PA Fuerst and TJ Byers. Sequence variations in small-subunit ribosomal RNAs of Hartmannella vermiformis<\/em> and their phylogenetic implications. Mol. Biol. Evol. 11(4):684-690.<\/p>\n1992\u00a0\u00a0\u00a0 Hugo, ER, VJ Stewart, RJ Gast<\/strong> and TJ Byers. Purification of amoeba mtDNA using the UNSET procedure. In: Protocols in Protozoology (J.J. Lee and A.T. Soldo eds.) D 7.1-7.2 Society of Protozoologists.<\/p>\n* indicates undergraduate student involved in the research project and publication<\/p>\n
<\/p>\n
OTHER PUBLICATIONS<\/strong><\/p>\n1995\u00a0\u00a0\u00a0 Caron, DA and RJ Gast<\/strong>. \u201cProbing biodiversity with molecular techniques\u201d Oceanus, 38: 11-15.<\/p>\n1999\u00a0\u00a0\u00a0 RJ Gast.<\/strong> WHOI annual report \u201cAntarctic Studies Illuminate Diversity in Extreme Environments\u201d<\/p>\n2000\u00a0\u00a0\u00a0 \u201cThe Good, the Bad and the Ubiquitous: Acanthamoeba in the Marine Environment\u201d report written by Tracey Crago summarizing the Acanthamoeba research that I have accomplished with funding from WHOI Sea Grant (Sea Grant publication)<\/p>\n
2000\u00a0\u00a0\u00a0 RJ Gast<\/strong> \u201cDetection and Quantification of Live Acanthamoeba in Natural Marine Ecosystems Using Molecular Genetic Methods\u201d\u00a0\u00a0 Sea Grant Program Guide.<\/p>\n2002\u00a0\u00a0\u00a0 Fathom online feature about Antarctic Protistan Diversity<\/p>\n
2004\u00a0\u00a0\u00a0 Revealing the Ocean\u2019s invisible Abundance: New instruments enable studies of diverse microbial communities at the center of the oceanic food web Oceanus.<\/p>\n
2005\u00a0\u00a0\u00a0 Protists in the Antarctic Antarctic Sun (Online publication)<\/p>\n
2009 \u00a0\u00a0 DA Caron, RJ Gast<\/strong> and PD Countway Microbial eukaryote ecology: Questions of diversity and biogeography Microbe (ASM)<\/p>\n2009\u00a0\u00a0\u00a0 Caron, DA and RJ Gast<\/strong> Heterotrophic protists associated with sea ice. In Sea Ice, pp.327-356. 2nd<\/sup> Edition edited by D.N. Thomas and G.S. Dieckmann Wiley-Blackwell.<\/p>\n2017\u00a0\u00a0\u00a0 Caron, DA, RJ Gast<\/strong> and Marie-\u00c8ve Garneau. Sea ice as a habitat for micrograzers. In Sea Ice. 3rd<\/sup> Edition edited by D.N. Thomas and G.S. Dieckmann.<\/p>\n","protected":false},"excerpt":{"rendered":"Publications 2019\u00a0\u00a0\u00a0 Stamatakis K, P-I Broussos, A Panagiotopoulou, RJ Gast, M Pelecanou and GC Papageorgiou. Light-adaptive state transitions in the Ross Sea haptophyte Phaeocystis antarctica and in dinoflagellate cells hosting kleptoplasts derived from it. BBA \u2013 Bioenergetics 1860:102-110. 2018\u00a0\u00a0\u00a0 Gomez F and RJ Gast.\u00a0 The dinoflagellates Amyloodinium and Ichthyodinium (Dinophyceae), parasites on marine fishes in…<\/p>\n","protected":false},"author":46,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www2.whoi.edu\/staff\/rgast\/wp-json\/wp\/v2\/pages\/27"}],"collection":[{"href":"https:\/\/www2.whoi.edu\/staff\/rgast\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.whoi.edu\/staff\/rgast\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/staff\/rgast\/wp-json\/wp\/v2\/users\/46"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/staff\/rgast\/wp-json\/wp\/v2\/comments?post=27"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/staff\/rgast\/wp-json\/wp\/v2\/pages\/27\/revisions"}],"predecessor-version":[{"id":323,"href":"https:\/\/www2.whoi.edu\/staff\/rgast\/wp-json\/wp\/v2\/pages\/27\/revisions\/323"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/staff\/rgast\/wp-json\/wp\/v2\/media?parent=27"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}