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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 35 (1988), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Inc
    The @journal of eukaryotic microbiology 52 (2005), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Microzooplankton grazing can be important in regulating growth of dinoflagellate populations, including species responsible for harmful algal blooms. In the Chesapeake Bay region, microzooplankton community grazing coefficients on small cell-size dinoflagellates are often greater than potential gross growth coefficients of dinoflagellates, and thus grazing may prevent bloom formation. Who are the major microzooplankton grazers on small dinoflagellates? Ciliates or other dinoflagellates? Data from Chesapeake Bay and its tributaries indicate both; sometimes ciliates and sometimes dinoflagellates are the major grazers. The importance of ciliates and heterotrophic dinoflagellates varies with season and location, but often one group dominates the microzooplankton assemblage. Specific clearance and division rates of ciliates are higher than that of heterotrophic dinoflagellates, thus it could be expected that ciliates would be the dominant microzooplankton grazers. However, during summer, small heterotrophic dinoflagellates are often the dominant grazers on small dinoflagelllates in the mesohaline Bay. Differential predation by copepods on ciliates may be responsible for this pattern. When microzooplankton community grazing is less than dinoflagellate cell division, red tides may result. Thus, it is important to understand the factors controlling both ciliate and heterotrophic dinoflagellate populations and their grazing impacts.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Inc
    The @journal of eukaryotic microbiology 52 (2005), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Myrionecta rubra and Mesodinium pulex are among the most commonly encountered planktonic ciliates in coastal marine and estuarine regions throughout the world. Despite their widespread distribution, both ciliates have received little attention by taxonomists. In order to understand the phylogenetic position of these ciliates better, we determined the SSU rRNA gene from cultures of M. rubra and M. pulex. Partial sequence data were also generated from isolated cells of M. rubra from Chesapeake Bay. The M. rubra and M. pulex sequences were very divergent from all other ciliates, but shared a branch with 100% bootstrap support. Both species had numerous deletions and substitutions in their SSU rRNA gene, resulting in a long branch for the clade. This made the sequences prone to spurious phylogenetic affiliations when using simple phylogenetic methods. Maximum likelihood analysis placed M. rubra and M. pulex on the basal ciliate branch, following the removal of ambiguously aligned regions. Fluorescent in situ hybridization probes were used with confocal laser scanning microscopy to confirm that these divergent sequences were both expressed in the cytoplasm and nucleolus of M. rubra and M. pulex. We found that our sequence data matched several recently discovered unidentified eukaryotes in Genbank from diverse marine habitats, all of which had apparently been misattributed to highly divergent amoeboid organisms.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 46 (1999), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Mixotrophy, used herein for the combination of phototrophy and phagotrophy, is widespread among dinoflagellates. It occurs among most, perhaps all, of the extant orders, including the Prorocentrales, Dinophysiales. Gymnodiniales, Noctilucales, Gonyaulacales, Peridiniales, Blastodiniales. Phytodiniales, and Dinamoebales. Many cases of mixotrophy among dinoflagellates are probably undocumented. Primarily photosynthetic dinoflagellates with their “own” plastids can often supplement their nutrition by preying on other cells. Some primarily phagotrophic species are photosynthetic due to the presence of kleptochloroplasts or algal endosymbionts. Some parasitic dinoflagellates have plastids and are probably mixotrophic. For most mixotrophic dinoflagellates, the relative importance of photosynthesis, uptake of dissolved inorganic nutrients, and feeding are unknown. However, it is apparent that mixotrophy has different functions in different physiological types of dinoflagellates. Data on the simultaneous regulation of photosynthesis, assimilation of dissolved inorganic and organic nutrients, and phagotophy by environmental parameters (irradiance. availablity of dissolved nutrients, availability of prey) and by life history events are needed in order to understand the diverse roles of mixotrophy in dinoflagellates.
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  • 5
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It is well documented that organelles can be retained and used by predatory organisms, but in most cases such sequestrations are limited to plastids of algal prey. Furthermore, sequestrations of prey organelles are typically highly ephemeral as a result of the inability of the organelle to ...
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  • 6
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Mesodinium rubrum (Lohmann 1908) Jankowski 1976 (= Myrionecta rubra) is a common photosynthetic marine planktonic ciliate which can form coastal red-tides. It may represent a ‘species complex’ and since Darwin's voyage on the Beagle, it has been of great cytological, ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 503 (1987), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 326 (1987), S. 790-792 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Surface water samples were collected from the Oceanographic Institution dock in Great Harbor, Woods Hole, Massachusetts and the planktonic ciliates were enumerated (Fig. 1). This location is well mixed by tidal currents, and thus stratification of the water column is minimal, and samples could be ...
    Type of Medium: Electronic Resource
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  • 9
    Publication Date: 2024-02-01
    Keywords: 5191045; AT_II-119/5_26-4; Atlantis_II-119/5; Atlantis II (1963); Bacteria, heterotrophic; Bottle number; Ciliates, non-oligotrich, other; Ciliates, non-oligotrich, other, biomass as carbon; Ciliates, non-plastidic-oligotrich; Ciliates, non-plastidic-oligotrich, biomass as carbon; Ciliates, oligotrich, other; Ciliates, oligotrich, other, biomass as carbon; Ciliates, plastidic-oligotrich; Ciliates, plastidic-oligotrich, biomass as carbon; Copepoda, nauplii; Copepoda, other; CTD/Rosette; CTD-RO; Cyanobacteria; Cyanobacteria, biomass as carbon; Cyanobacteria, biovolume; Cyanobacteria, cell biovolume; DEPTH, water; Dinoflagellates, heterotrophic; Dinoflagellates, heterotrophic, biomass as carbon; Dinoflagellates, heterotrophic, standard deviation; Foraminifera; JGOFS; Joint Global Ocean Flux Study; Leucine incorporation rate; Mesodinium; Mesodinium, biomass as carbon; NABE; Nanoplankton, heterotrophic; Nanoplankton, heterotrophic, biomass as carbon; Nanoplankton, heterotrophic, biovolume; Nanoplankton, phototrophic; Nanoplankton, phototrophic, biomass as carbon; Nanoplankton, phototrophic, biovolume; North Atlantic; North Atlantic Bloom Experiment, 1989-1991; Plankton, heterotrophic, cell biovolume; Plankton, phototrophic, cell biovolume; Pressure, water; Sticholonche; Tintinnid; Tintinnid, biomass as carbon
    Type: Dataset
    Format: text/tab-separated-values, 409 data points
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  • 10
    Publication Date: 2024-02-01
    Keywords: 5221617; AT_II-119/5_29-6; Atlantis_II-119/5; Atlantis II (1963); Bacteria, heterotrophic; Bottle number; Ciliates, non-oligotrich, other; Ciliates, non-oligotrich, other, biomass as carbon; Ciliates, non-plastidic-oligotrich; Ciliates, non-plastidic-oligotrich, biomass as carbon; Ciliates, oligotrich, other; Ciliates, oligotrich, other, biomass as carbon; Ciliates, plastidic-oligotrich; Ciliates, plastidic-oligotrich, biomass as carbon; Copepoda, nauplii; Copepoda, other; CTD/Rosette; CTD-RO; Cyanobacteria; Cyanobacteria, biomass as carbon; Cyanobacteria, biovolume; Cyanobacteria, cell biovolume; DEPTH, water; Dinoflagellates, heterotrophic; Dinoflagellates, heterotrophic, biomass as carbon; Dinoflagellates, heterotrophic, standard deviation; Foraminifera; Holotricha; JGOFS; Joint Global Ocean Flux Study; Mesodinium; Mesodinium, biomass as carbon; NABE; Nanoplankton, heterotrophic; Nanoplankton, heterotrophic, biomass as carbon; Nanoplankton, heterotrophic, biovolume; Nanoplankton, phototrophic; Nanoplankton, phototrophic, biomass as carbon; Nanoplankton, phototrophic, biovolume; North Atlantic; North Atlantic Bloom Experiment, 1989-1991; Plankton, heterotrophic, cell biovolume; Plankton, phototrophic, cell biovolume; Pressure, water; Sticholonche; Tintinnid; Tintinnid, biomass as carbon
    Type: Dataset
    Format: text/tab-separated-values, 395 data points
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