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Showing 1 to 8 of 8 for “"ilyanassa obsoleta"”.
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Dorsal-Ventral Patterning in the Mud Snail, Ilyanassa obsoleta
… of the dorsal-ventral axis in the mud snail, Ilyanassa obsoleta. Ilyanassa and other spiralians utilize an embryonic organizer to induce dorsal identity, and thus establish the bilateral axis. The D macromere embryonic organizer in Ilyanassa is specified at the four-cell stage by the …
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Cell Fate Determination Along The Anterior-Posterior Axis In The Mud Snail Ilyanassa obsoleta.
Previous studies in the mud snail, Ilyanassa obsoleta, described a novel centrosome- dependent mechanism to differentially distribute mRNAs within the embryo during the first 7 cleavage cycles of development (Lambert and Nagy 2002). I hypothesized that the simplest explanation to account for the …
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Trematode parasites of the mudsnail Ilyanassa obsoleta: An analysis of parasite communities at different scales
… shape trematode parasite communities of mudsnail Ilyanassa obsoleta at three different spatial scales. Nine species of trematode which obligately infect I. obsoleta during larval stages but use numerous estuarine species as second intermediate and definitive hosts are considered. The work provides …
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Patterning the Mud Snail Ilyanassa obsoleta: The Role of Cell Signaling and Asymmetric Protein Localization
The polar lobe of Ilyanassa is asymmetrically partitioned into the D lineage of cells. Two of these cells, 3D and 4d, induce proper axial cell fate patterning in the embryo. Based on known embryological data in Ilyanassa, I hypothesized that Notch signaling would be required for this induction. I …
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Biophysical coupling between turbulence, veliger behavior, and larval supply
… the behavior of gastropod larvae (mud snails Ilyanassa obsoleta) in turbulence, and to investigate how that behavior affects larval supply in a turbulent coastal inlet. Gastropod larvae retract their velums and sink rapidly in strong turbulence. Turbulence-induced sinking would be an adaptive …
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Snail grazing effects on the composition and metabolism of benthic diatom communities and subsequent effects on fish growth
Eastern mud snails (Ilyanassa obsoleta) in densities of zero, six or twelve snails were placed in flow-through-laboratory microcosms (765 cm2) and incubated for five weeks. Other tanks were raked daily to a depth of 10 mm. Grazing by low densities of snails significantly increased chlorophyll …
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Acute Toxicity and Sub-Lethal Effects of Non-Point Source Pollutants on Invertebrates
… CuPT, B(a)P, and styrene in the mud snail, Ilyanassa obsoleta, the American oyster, Crassostrea virginica, the sea urchin, Lytechinus variegatus, and/or the barnacle, Amphibalanus (= Balanus) amphitrite. In addition, the general effects of non-point source pollution within the Rachel Carson …
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<em>In Vitro Cultivation</em> of the Microphallid Trematode <em>Gynaecotyla Adunca</em>
… in culture, they were fed to the marsh snail <em>Ilyanassa obsoleta</em>. I also compared HBSS and DMEM plus 5% horse serum as the initial incubation conditions of the freshly excysted worms then observed them 24 hr later before adding them to culture to see if this affected egg production. G. …