(1) King crabs (Family Lithodidae) are among the world's largest arthropods, having a crab-like morphology and a strongly calcified exoskeleton.
(2) The anti-rickettsial activity of this drug was evaluated with regard to the determination of the numbers of surviving microorganism (LID100) and the in vivo concentration of erythromycin in both arthropod hosts.
(3) The method of detection of rickettsia in smears from the arthropods using the immunofluorescence technique and antibody response in mice inoculated with infected arthropods was found to be the most effective in these studies.
(4) The intensity of light for reliable cell killing (0.5 MW.m-2) was much greater than that used to kill arthropod neurones.
(5) The microsporidia are a group of unusual, obligately parasitic protists that infect a great variety of other eukaryotes, including vertebrates, arthropods, molluscs, annelids, nematodes, cnidaria and even various ciliates, myxosporidia and gregarines.
(6) These results suggest that the specificity of LAC virus-vector interactions is markedly influenced by the efficiency of the fusion function of the G1 envelope glycoprotein operating at the midgut level in the arthropod vector.
(7) Domestic swine were housed in four pens under controlled conditions to document arthropod transmission of vesicular stomatitis virus.
(8) The 12 additional arthropod species recorded from the woodland mice consisted of 1 nidicolous beetle, Leptinus orientamericanus; 1 bot, Cuterebra fontinella; 3 fleas, Ctenophthalmus pseudagyrtes, Orchopeas leucopus and Peromyscopsylla scotti; 1 tick, Dermacentor variabilis; 2 mesostigmatid mites, Androlaelaps fahrenholzi and Ornithonyssus bacoti; 3 chiggers, Comatacarus americanus, Euschoengastia peromysci, and Leptotrombidium peromysci; and 1 undescribed pygmephorid mite of the genus Pygmephorus.
(9) Lyme borreliosis is a protean infection caused by B burgdorferi, a recently recognized arthropod-borne spirochete.
(10) The first is characterized by afferent synapses to the brain with, in the sensory pedicle endings, structures similar to the presynaptic ribbons noted by some authors in photoreceptors of arthropods.
(11) The method is convenient, and could be useful for the study of arthropod neuromuscular junctions in general, since their nerve terminals do not release acetylcholine as a transmitter and cannot be stained by the more commonly used cholinesterase methods.
(12) The arthropod-borne virus (arbovirus) diseases of livestock have worldwide impact.
(13) These include gap junctions with features characteristic of arthropods, which seem to assemble by lateral migration of 13-nm E face intramembranous particles (IMPs), which ultimately cluster to form a large number of mature plaques of varying diameters.
(14) Histopathological examination of skin biopsies demonstrated changes compatible with arthropod hypersensitivity.
(15) Dr Umair A Shah, executive director of the Harris County department of public health, said, “It’s probably not a case of if we get Zika in our native mosquitoes, it’s probably a case of when we get Zika in our native mosquitoes.” Zika is a subtropical virus transmitted by the Aedes aegypti and Aedes albopictus mosquitoes, part of a group of diseases known as arboviruses, short for arthropod-borne viruses.
(16) A phylogenetic tree constructed from these sequences shows that the family evolved from a common ancestral gene that came into existence at about the time of arthropod and chordate divergence.
(17) The paper ends with identification keys for both adult and immature stages as well as for arthropod indoor fecal traces.
(18) Presence of organophosphates in arthropod larvae has not been documented previously and the analysis of larvae from decomposing remains may prove a useful technique for detection of these toxicants in decomposing remains.
(19) In arthropods, reflex modulation can occur in the sensory receptors themselves and in neurons that discharge during locomotion.
(20) The inhibition assay for mite allergen was reproducible in the presence of protein concentrations of added plant, fungal, arthropod and animal extracts in excess of the protein concentrations that occur under the operational mite assay conditions.
Starfish
Definition:
(n.) Any one of numerous species of echinoderms belonging to the class Asterioidea, in which the body is star-shaped and usually has five rays, though the number of rays varies from five to forty or more. The rays are often long, but are sometimes so short as to appear only as angles to the disklike body. Called also sea star, five-finger, and stellerid.
(n.) The dollar fish, or butterfish.
Example Sentences:
(1) The kinetics of the membrane current during the anomalous or inward-going rectification of the K current in the egg cell membrane of the starfish Mediaster aequalis were analyzed by voltage clamp.
(2) Using tubulin immunostaining, we found that 6-DMAP did not affect the cortical microtubules and resting female centrioles of prophase-arrested starfish oocytes, whereas it induced a precocious disappearance of spindle fibers when applied to hormone-stimulated oocytes.
(3) When he sits back at the piano and plays Raspberry Beret and Starfish and Coffee and Girls and Boys, they’re beside themselves, and understandably so: he sounds magnificent.
(4) The cockle Cardium tuberculatum responds with a typical escape movement (jumping by foot contractions) when touched by a starfish.
(5) Since these characteristics of the starfish egg poly(A)+ RNA are similar to those of cyclin mRNAs from sea urchin and surf clam eggs, we synthesized a 50-mer antisense-cyclin oligonucleotide probe coding for a part of the sea urchin cyclin cDNA and used this to screen starfish RNA.
(6) The cellular events that take place during reconstruction of larval forms from dissociated embryonic cells of the starfish are investigated by thick and thin sections.
(7) Primary afferent electrical activity can be recorded from the chemoreceptors on the mantle margin that are responsive to starfish scent and also from other physiologically distinct receptors that are responsive to contact with starfish tube feet.
(8) A cDNA clone encoding starfish cyclin B has been isolated and its sequence determined.
(9) The changes in activity of a cytoplasmic maturation-promoting factor (MPF), capable of inducing resumption of meiosis when injected into starfish oocytes, were examined during mouse oocyte maturation.
(10) 1-Methyladenine (1MeAde) is the naturally occurring maturation-inducing hormone of starfish oocytes.
(11) The marine gastropods Acmaea (Collisella) limatula and Acmaea (Notoacmea) scutum respond to distant predatory starfish (i.e.
(12) "There are a number of threats facing the reef, including climate change, coastal developments, agricultural runoff, ocean acidification and outbreaks of the crown-of-thorns starfish.
(13) Fatty acid hydroperoxides (lipoxygenase products) are metabolized to allene oxides by a type of dehydrase that has been detected in plants, corals, and starfish oocytes.
(14) Ross said researchers have identified four new species of fish, a new type of starfish and several new species of crustaceans living in the deepwater reefs.
(15) An assessment by the Great Barrier Reef Marine Park Authority cited climate change as the leading threat to the coral ecosystem, with pollution, extreme weather events, and a plague of coral-eating starfish also contributing to its malaise.
(16) This has come about because links have been established between two independent areas of research, one based on a genetic approach using the fission yeast Schizosaccharomyces pombe and the second based on a biochemical approach using Xenopus and starfish oocytes.
(17) In the presence of 1 mM hydroxyurea, fertilized eggs of the starfish, Asterina pectinifera, cleaved up to the 256-cell stage and decomposed before blastulation.
(18) Porcine brain tubulin labeled with fluorescein isothiocyanate (FITC) was able to polymerize by itself and co-polymerize with tubulin purified from starfish sperm flagella.
(19) Although caffeine, theophylline, and theobromine supposedly inhibit maturation of oocytes, studies using the starfish oocyte showed that theobromine does not inhibit maturation and the inhibition caused by caffeine and theophylline is reversible.
(20) The acrosome reaction of spermatozoa from the starfish Marthasterias glacialis was induced with the ionophore A23187.