Lateral diffusion of visual pigments in toad (Bufo marinus) rods and in catfish (Ictalurus punctatus) cones.
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چکیده
منابع مشابه
Channel Catfish Ictalurus punctatus
We used a two-compartment, clearance volume-based model to examine rubidium and cesium Ž . pharmacokinetics in channel catfish Ictalurus punctatus after intravascular administration. We compared the apparent volumes of distribution in the central and peripheral compartments and the intercompartmental and whole-body clearances of both metals at 20.0 8C and 27.5 8C. Biological half-times of Rb we...
متن کاملHormonal Control of Osmoregulation in a Stenohaline Catfish, Ictalurus Punctatus
When channel catfish (lchtalurus punctatus) in fresh water (FW) were hypophysectomized, plasma osmolality decreased significantly after 24 hrs, and the maximum reduction was seen after 2 days. When they were transferred from FW to dilute seawater (20-40% SW), plasma osmolality of the sham-operated fish was consistently higher than the osmolality of the environmental water, whereas the osmolalit...
متن کاملExpression of membrane transporters in cane toad Bufo marinus oocytes.
Membrane transport proteins (transporters and ion channels) have been extensively expressed in amphibian oocytes. The aims of this study were to determine whether oocytes from the cane toad Bufo marinus could be used as an alternative expression system to the broadly used Xenopus laevis oocytes. mRNAs encoding plasma membrane transporters NaSi-1 and sat-1 (sulphate transporters), NaDC-1 (dicarb...
متن کاملOsmoregulation of the cane toad, Bufo marinus, in salt water.
Adult cane toads, B. marinus, survived in salinities up to 40% sea-water (SW). Pre-exposure to 30, then 40% SW, increased the survival time of toads in 50% SW. Plasma from toads acclimated to salt water is hyperosmotic to the environment--a result of increased plasma sodium, chloride and urea concentrations. When toads were placed in tap-water and 20% SW, all significant changes to plasma sodiu...
متن کاملIdentification and Characterization of Full-Length cDNAs in Channel Catfish (Ictalurus punctatus) and Blue Catfish (Ictalurus furcatus)
BACKGROUND Genome annotation projects, gene functional studies, and phylogenetic analyses for a given organism all greatly benefit from access to a validated full-length cDNA resource. While increasingly common in model species, full-length cDNA resources in aquaculture species are scarce. METHODOLOGY AND PRINCIPAL FINDINGS Through in silico analysis of catfish (Ictalurus spp.) ESTs, a total ...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1990
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1990.sp018303