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Showing 1 to 20 of 34 for “"ciliates"”.
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Scrambling analysis of ciliates
Ciliates are a class of organisms which undergo a genetic process called gene descrambling after mating. In order to better understand the problem, a literature review of past works has been presented in this thesis. This includes a brief summary of both the relevant biology and bioinformatics …
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Breeding Systems, Adaptation and Evolution: An Experimental Approach Using Ciliates
Made available in DSpace on 2014-12-12T01:27:37Z (GMT). No. of bitstreams: 1 7212317.pdf: 2465442 bytes, checksum: f6d86d3e28d3ebb25d5cc1743b733680 (MD5) Previous issue date: 1971
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The Morphology, Systematics, and Biology of The Entocommensal Ciliates Of Echinoids
Made available in DSpace on 2014-12-10T18:13:23Z (GMT). No. of bitstreams: 1 6500781.pdf: 19551932 bytes, checksum: f904c151690454afb105a1426f25c1aa (MD5) Previous issue date: 1964
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Mechanisms and ecological implications of resistance to predation by heterotrophic ciliates expressed by marine bacteria
Bacteria are dominant organisms in the marine environment, providing the foundation for food webs that are essential for ecosystem structure and function. The ubiquity of bacteria in the marine environment is a result of their capacity to survive in many different niches. This is largely due to the …
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The biogeography, phylogeny, and dispersal of freshwater and terrestrial free-living ciliates in Florida, USA.
… of the niche requirements for these ciliates. The development of dynamic models was undertaken to enhance discussions surrounding potential dispersal mechanisms of target ciliate species over large distances. Agent based models were constructed to visualize microcosm interactions of a …
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An investigation of the growth and feeding responses of oligotrich ciliates to food types and concentrations : an approach to assessing the potential of marine planktonic ciliate blooms
Planktonic ciliates consume small phytoplankton and can be important in the transfer of carbon through food webs. This study examined the impact of clonal ciliate populations on short term algal blooms. Numerical and functional responses (growth and grazing rates with varied food concentration)were …
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Biodiversity of ciliated protozoa in soil ecosystems and assessment of their potential as bio-indicators of soil quality.
… of the abundance and species richness of soil ciliates and soil properties in the natural and agricultural soils was carried out in order to establish the relationships between soil ciliates and soil properties, and to investigate the potential of soil ciliates as bio-indicators of soil …
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Microzooplankton Dynamics in Lower Chesapeake Bay and Its Major Tributaries
… composed of copepod nauplii, rotifers, and ciliates. Ciliates were the most abundant microzooplankton, comprising more than 90% of the total density, with copepod nauplii representing approximately 50% of the total microzooplankton biomass (carbon content). Rotifers contributed less than 5% …
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Effect of boundaries on swimming of Paramecium multimicronucleatum
… of research. Amongst microorganisms, unicellular ciliates are the fastest swimmers and also respond to a variety of external cues. We choose Paramecium multimicronucleatum as a model system to understand the locomotion of ciliates. First, we explore the effects of boundaries on swimming modes of …
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A study of the infestations occurring in Parechinus Angulosus
… belong to the order Holotrichida. Apart trom the ciliates found a red Rhabdocoele worm of the genus Syndesmus has been found. It lies in the perivisceral cavity attached to the outside of the intestine, and appears to be a new species. Many of the ciliates found in sea urchins are closely related …
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A STUDY OF THE MICROORGANISMS INHABITING ROTATING BIOLOGICAL CONTACTOR BIOFILMS DURING VARIOUS OPERATING CONDITIONS
… unicellular bacteria, zooflagellates, amoebae, ciliates, nematodes, and rotifers is complex and depends on the organic loading rate. Filaments found in initial biofilm studies were identical as Sphaerotilus in both morphological and ultrastructural characteristics. At high loading rates …
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Gpi-Anchored Proteins In Ciliated Protozoa: From Ca++ Signaling To Mitochondrial Extrusion
Ciliates are an ancient eukaryotic lineage comprised of roughly 7,000 extant species. These include historically important models for the study of cell biology and genetics, most notably, Tetrahymena and Paramecium. One of the characteristic features of ciliates is their extensive cell surface …
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Ciliate micrograzer dynamics of the New England Shelf
… To analyze a 10-year time series of herbivorous ciliates at MVCO and address broad patterns of seasonality of major ciliate classes and their components, I employed a statistical model that estimates a seasonal density pattern and simultaneously accounts for and separates any annual-scale …
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Ciliate micrograzer dynamics of the New England shelf
… To analyze a 10-year time series of herbivorous ciliates at MVCO and address broad patterns of seasonality of major ciliate classes and their components, I employed a statistical model that estimates a seasonal density pattern and simultaneously accounts for and separates any annual-scale …
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MORPHOGENETIC AND ULTRASTRUCTURAL INVESTIGATION IN THE HYPOTRICHIDA (CILIOPHORA, PROTOZOA): IMPLICATIONS IN CILIATE EVOLUTION
… ultrastructure of several species of marine ciliates. Using this information I propose phylogenetic relationships within the Hypotrichida, suggest homologies between hypotrichs and other ciliates, discuss the adaptive significance of ciliate microtubular organelles, and explore the evolution …
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Aspectos morfológicos e ultraestruturais de três ciliados de musgos da localidade de Corrêas, Petrópolis, Rio de Janeiro
… of some of the most representative and abundant ciliates were selected from the water mass obtained through the collection and hydration in laboratory of two mosses, Sematophyllum subsimplex and Barbula sp. , found in Corrêas (Petrópolis, Rio de Janeiro, Brazil). Observations of life organisms, …
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A MARINE PATHOGENIC PROTIST ACROSS SCALES: HOST-MICROBIOME INTERACTION, PROVENANCE, MORPHOLOGY AND TAXONOMICAL CHARACTERIZATION OF THE SCUTICOCILIATE PARASITE OF DIADEMATIDAE
… which suggests the presence of closely related ciliates, but doesn’t confirm them being exclusively DaScPc. Bacterial signatures of the disease in 2022 do not appear in the museum specimen microbial libraries. Ultrastructural and morphometric analyses of DaScPc, revealed novel and …
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Determining the Refractive Index of Phytoplankton via Direct Measurement of Cellular Structures
… (Diatoms, Coccolithophores, Dinoflagellates, and Ciliates). Additionally, differences between species were seen in the volume portions of different structures, further necessitating the use of different bulk RIs for different species of phytoplankton. The bulk RI for diatoms shows strong agreement …
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Investigation of the microbial populations in the activated sludge of the Hoechst-Celanese wastewater treatment plant
… oxygen. A strong relationship between stalked ciliates and effluent quality was mention in the literature, but was not found in this study. Enumeration methods were evaluated.
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