(n.) Any one of numerous species of batrachians belonging to the genus Bufo and allied genera, especially those of the family Bufonidae. Toads are generally terrestrial in their habits except during the breeding season, when they seek the water. Most of the species burrow beneath the earth in the daytime and come forth to feed on insects at night. Most toads have a rough, warty skin in which are glands that secrete an acrid fluid.
Example Sentences:
(1) A golden toad (Bufo periglenes) in Monteverde Cloud forest reserve in Puntarenas province of Costa Rica.
(2) Resting plasma epinephrine and norepinephrine levels were 13.1 and 2.1 nmol liter-1 for the marine toad (Bufo marinus).
(3) A study was made of the innervation of the longitudinal muscle of the toad ileum with particular emphasis on the splanchnic innervation by non-adrenergic, non-cholinergic (NANC) nerves.
(4) These results indicate that GE decreases active Na transport in the toad skin.
(5) Fenoterol significantly increased toad skin oxygen consumption and net Na+ movement across the skin due to an increase in Na+ flux from mucosa to serosa.
(6) We attempted to distinguish between these 2 possibilities by studying paired toad bladders during 3 protocols that alter vasopressin-stimulated water flow across the intact tissue without altering aggregate frequency.
(7) In IDD patients the ultrafiltrates were active in the TTC assay and in the toad assay.
(8) About 2 weeks after metamorphosis, midwife toads Alytes obstetricans judge the size of a prey object mainly in scales of visual angle.
(9) However, we also demonstrate that published data show the existence of strong nonlinearities in the single-photon responses of toad and perhaps also of locust.
(10) A photoreactive analogue of vasotocin, [1-desamino,4-lysine(azidobenzoyl),8-arginine]vasotocin (4-N3-AVT), has been examined in the isolated toad urinary bladder for biological activity and binding to hormonal receptors.
(11) Earlier studies have shown that a substance(s) released from the egg jelly of the toad Bufo arenarum is required for fertilization.
(12) Commenters on his blog posted numerous fotozhaby – literally, photo-toads, or montages – in pastiche of the sham image.
(13) Schematic eyes, with homogeneous and non homogeneous lenses, were constructed for tadpoles, juvenile toads, and adult toads.
(14) Bidirectional sodium fluxes were measured across toad bladder sacs after eliminating active transport with ouabain.
(15) The properties of hyperpolarization-activated channels were studied in single smooth muscle cells from the stomach of the toad, Bufo marinus, using the patch-clamp technique.
(16) Findings from toad urinary bladder, Necturus gallbladder, and rabbit cortical collecting tubule are reviewed.
(17) The chronotropic and inotropic effects of stimulating the vagus on the hearts of the dog, duck and toad were studied.2.
(18) The inhibition of osmotic stimulated water flow in the isolated toad bladder by 0.1 mM sodium stibogluconate (pentavalent antimony) is described.
(19) Other than snake venoms, only venoms of the toad Bufo calamita and the lizards were hemorrhagic, and only venoms of the social wasps, social bees and harvester ant exhibited strong anticoagulant activity.
(20) By analogy with the comparable glands of the yellow-bellied toad and the grass frog, these are called the toxic, lumpy, mucous, callous, and small glands.
Toadstool
Definition:
(n.) A name given to many umbrella-shaped fungi, mostly of the genus Agaricus. The species are almost numberless. They grow on decaying organic matter.
Example Sentences:
(1) vanadium-containing, nitrogenases from N2-fixing bacteria, (iv) vanadium sequestering by sea squirts (ascidians), and (v) amavadine, a low molecular weight complex of V(IV) accumulated in the fly agaric and related toadstools.
(2) This is illustrated in the analysis of some novel compounds isolated from fruit bodies of toadstools and slime moulds, including infractopicrin, lascivol, retipolide A, arcyroxepin A and rubroflavin.
(3) Under the same conditions toadstool toxin was eliminated from plasma protein solution too: after 4 min of perfusion a dose of remaining material, corresponding to the LD70 of the starting material, was nontoxic in mice.
(4) The function of vanadium, while still illusive in ascidians and toadstools, begins to be understood in vanadium-enzyme interaction.
(5) Phallolysin was isolated from cold aqueous toadstool extracts by precipitation with 40% ammonium sulphate, ion-exchange chromatography on DEAE cellulose, gel chromatography on Biogel P-30 and electrofocussing in Ampholine.
(6) Invasive infection with fungi of the Basidiomycota (rusts, smuts, toadstools, mushrooms, and puffballs) is extremely rare.
(7) On his return to California, he continued to use his camera as a means to express "the very substance and the quintessence of the thing itself", photographing in close-up what he saw around him: an egg-slicer, a toadstool, a cup, a gnarled tree.
(8) Unfixed cells showed angular and toadstool-shaped deformations, especially at the highest lectin concentrations, the agglutinating surfaces being flattened against each other over extended areas.
(9) Phalloidin, a toxic bicyclic peptide of rapid action from the toadstool, Amanita phalloides, gives rise to polymerization of G-actin to filamentous structures (Ph-actin) in a medium of low ionic strength.
(10) Phallolysin from the toadstool, Amanita phalloides, is a basic protein that causes direct haemolysis of red cells.
(11) RNA polymerase I is active at 50 mM (NH4)2SO4, catalyzes the synthesis of GMP-rich ribosomal-like RNA and is completely resistant to the toadstool toxin alpha-amanitin.
(12) It’s great for families: kids love the sense of adventure in this fairytale setting complete with carved toadstools and woodland animals.
(13) 8.51pm BST Kimberley's toadstool looks magical against a backdrop of Mary's banana jacket, and the judges love it too.
(14) Kimberley's cake is also made from squash, but in the shape of a toadstool house.
(15) A model having "inverted toadstool" protein units separated by spherical lipid micelles is favored, and is capable of explaining the appearance of the virus in the electron microscope and differences between normal and incomplete (von Magnus) forms of the virus.