(1) Lens crystallins were isolated from cephalopods, octopus and squid.
(2) The photopigments, rhodopsin and retinochrome, have been localized in cephalopod retinae using light and electron microscopic immunocytochemical methods.
(3) Occasionally, anti-RALBP antibodies were seen to react weakly with "IRBP" in some cephalopods.
(4) In the cephalopod lens, however, the sum inside was much lower than that outside.2.
(5) We report here that a transparent tissue, derived from muscle but functioning as a lens in the light-emitting organ of a squid, Euprymna scolopes, shows striking biochemical convergence with the epidermally derived ocular lenses of some mammals and cephalopods.
(6) Sequence similarity between this major cephalopod crystallin and glutathione S-transferase were found, which suggested some enzymatic role of crystallins inside the cephalopod lens.
(7) This polyclonal antiserum also cross-reacted with the ALDH-like crystallins found in the ocular lenses of certain mammals and cephalopods.
(8) Screening of lens homogenates for the identification of lactate dehydrogenases was undertaken for the representative species from five major classes of vertebrates plus the cephalopod of invertebrates.
(9) The potential of the [14C]deoxyglucose technique as a powerful tool in studying the functional organization of cephalopod brains is discussed.
(10) Catecholamines and 5-hydroxytryptamine were measured fluorimetrically in nervous tissue of cephalopod molluscs.2.
(11) Fourth, nociception can explain the behavior of insects and perhaps other invertebrates (except possibly the cephalopods).
(12) The photosensitive vesicles of cephalopods are extraocular receptors present either in the mantle or on the head.
(13) A single layer of cell secrets the hard cephalopod beaks.
(14) The total amount of retinochrome in the retina was several times higher than that of rhodopsin, distinguishing the gastropod eye from the cephalopod eye.
(15) The requirement of live marine prey for cephalopod mariculture has restricted its practicality for inland research laboratories, commercial enterprises and home aquarists.
(16) When it comes to the battle of the molluscs, cephalopods win tentacles down.
(17) To clarify the formation process of acid metarhodopsin in the cephalopod rhodopsin cycle, changes in the difference spectrum of squid (Todarodes pacificus) rhodopsin in acid (pH 5.7, or pH 6.1) and alkaline (pH 10.2) solutions were studied at various temperatures by applying the flash photolytic technique.
(18) Crude patterning may take place in the basal and, perhaps, peduncle lobes in cephalopods and in the lower and intermediate medulla in teleosts.
(19) Progesterone and testosterone were obtained from the gonads and liver of cephalopods and from the whole body of crustaceans.
(20) In this respect this retinal-binding protein could have a role very similar to that postulated for the well-known cephalopod retinochrome, that serves to catalyze the formation in the presence of light of 11-cis retinal in photo-receptor cells and to provide it for the reconstitution of rhodopsin during the visual cycle.
Cuttlefish
Definition:
(n.) A cephalopod of the genus Sepia, having an internal shell, large eyes, and ten arms furnished with denticulated suckers, by means of which it secures its prey. The name is sometimes applied to dibranchiate cephalopods generally.
(n.) A foul-mouthed fellow.
Example Sentences:
(1) Whether Philip Hammond is soft snow or a spurting cuttlefish is difficult to say.
(3) The diets were presented for periods of 2 to 11 weeks to octopuses, cuttlefishes or squids and in most trials the results were compared to animals fed control diets of live marine shrimps, crabs or fish.
(4) The sex differenciation in the gonad of the cuttlefish is only evident after the hatching, -- the "A" cells become spermatogonia or ovogonia.
(5) The content of polyunsaturated fatty acids in lipids of Bartram and Comandor squids and cuttlefish comprises 47.59-49.84%.
(6) In unilaterally blinded octopus and cuttlefish, the optic lobe of the deprived side showed a decreased uptake of the labelled tracer.
(7) The search for it in squids and cuttlefishes led to the discovery of the giant nerve fibres.
(8) When there is a gap between one's real and one's declared aims, one turns as it were instinctively to long words and exhausted idioms, like a cuttlefish squirting out ink.'
(9) These studies have been carried out on the cerebellum and some other regions in a variety of species that include rat, turtle, skate and an intervertebrate, the cuttlefish.
(10) While their double-shelled relations (clams, mussels, oysters, scallops, etc) specialise in filtering water to remove food particles, and their single-shelled little cousins (periwinkles, whelks, limpets, conches) specialise in, well, adorning a seafood platter, cephalopods (octopus, cuttlefish and squid) specialise in a seriously impressive form of self-defence.
(11) With an arginine content of about 77%, cuttlefish protamine is one of the most basic proteins which have ever been characterized and the first typical protamine sequenced in invertebrates.
(12) We stopped for lunch at Flor do Arneiro (Sitio Arneiro 260, +351 289 815 287) in Arneiro near Faro, a fine restaurant serving cataplana (a dish of cuttlefish, clams and onions), where Don Chumbhino gave us some recipes for the dishes we were eating.
(13) Experimental foods were smoked cuttlefish (sectile food), raisins (food flattened under pressure), and peanuts (crushable food).
(14) Effects of noradrenaline and the related compounds adrenaline, dopamine, octopamine, tyramine, clonidine and isoprenaline were studied in isolated heart preparations from the cuttlefish Sepia officinalis L. 2.
(15) Without head orientation, the cuttlefish still rotates with its fins.
(16) The musculature of the fins of the cuttlefish Sepia officinalis (Mollusca, Cephalopoda) was studied with electromyography to test predictions of the functional role of the various muscle masses.
(17) The blood-brain interface was studied in a cephalopod mollusc, the cuttlefish Sepia officinalis, by thin-section electron microscopy.
(18) The predatory behaviour of the cuttlefish comprises several stages: prey-detection, orientation, translation and prey-seizing.
(19) The tetra-, tri-, di-, mono-, and nonacetylated forms of cuttlefish H4 represent 2, 6.4, 18, 32.2, and 41.4% of the whole histone, respectively.
(20) In cuttlefish, as in selachians and mammals, spermiogenesis is characterized by the double nuclear protein transition histones----intermediate protein (protein T)----protamine (protein Sp).