(n.) Any one of numerous species of long-winged, migratory, orthopterous insects, of the family Acrididae, allied to the grasshoppers; esp., (Edipoda, / Pachytylus, migratoria, and Acridium perigrinum, of Southern Europe, Asia, and Africa. In the United States the related species with similar habits are usually called grasshoppers. See Grasshopper.
(n.) The locust tree. See Locust Tree (definition, note, and phrases).
Example Sentences:
(1) The octopamine, dopamine and noradrenaline content of the brain of the locust, Schistocerca gregaria has been determined using sensitive radiochemical-enzymatic assays.
(2) Fifty-two analogues of the wasp toxin, philanthotoxin-433, have been synthesized and tested on a glutamatergic, nerve-muscle preparation from locust leg.
(3) Using a deafferented flight preparation of the locust and glass microelectrodes, we recorded simultaneously from the neuropil segments of different interneurons within a single thoracic ganglion.
(4) Activation of phosphorylase during flight is strongly reduced when locusts are ligated at the neck, indicating that this activation is due to a factor from the head, which upon flight is released into the hemolymph.
(5) 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.
(6) The embryonic development of the specialized glial cells that form the perineurial blood-brain barrier in the locust CNS has been studied by freeze-fracture and tracer uptake.
(7) In terrestrial insects such as locusts and cockroaches ventilatory movements are governed by a dominant oscillator in the metathoracic or anterior abdominal ganglion.
(8) Intracellular and extracellular electrodes were used to study spontaneous and impulse-linked release of transmitter at locust retractor unguis nerve-muscle synapses.2.
(9) Two mosaic sibling embryos of the Australian plague locust, Chortoicetes terminifera are reported with haploid and diploid cell lines in widely differing proportions.
(10) Locust phospholipids contain myoinositol but no scylloinositol.
(11) The anti-G beta, gamma antibodies recognized a 35-36-kDa protein in brain of vertebrates such as mammals (rat), avians (pigeon), amphibians (frog), fish (trout), and reptiles (turtle) but not in the invertebrates such as molluscs (snail) and insects (locust).
(12) The bioactivity of the endogenous FMRFamide-like peptides has been assessed on the extensor tibiae neuromuscular preparation and on the locust heart.
(13) It is proposed that serially homologous motor neurons serving similar functions are, to a first approximation, similar in the locust.
(14) Indeed, diglycerides constitute the largest neutral lipid fraction in the hemolymph of silkmoths, locusts, cockroaches, bugs, etc.
(15) The morphology and organisation of the central projections of tactile hair afferents from the hind leg of the locust, Schistocerca gregaria, were examined by staining individual hair afferents.
(16) The third experiment revealed that LiCl injections did not influence either maternal aggression or locust killing in naive females and predatory aggression in experienced-killer females.
(17) If harm is to be expected, then a quantitative comparison of that with the undoubted benefits of locust control is required to enable one to make a value judgement.
(18) This implies that the locust's computation of target distance involves signals concerning its own head motion.
(19) Allatal diol formation may be an additional mechanism for the control of JH-III levels in locusts, preceding release into the hemolymph.
(20) In the prey-catching task animals failed to target or track locusts when they were in the field contralateral to the lesion throughout the 4-day testing period.
Orthoptera
Definition:
(n. pl.) An order of mandibulate insects including grasshoppers, locusts, cockroaches, etc. See Illust. under Insect.
Example Sentences:
(1) The major chromomere of pachytene chromosome 6 in the oocytes of Acheta (Orthoptera) is a region of amplification for ribosomal RNA cistrons (28 S and 18 S).
(2) The major chromomeres of pachytene chromosomes 6 and 11 in the oocytes of Acheta (Orthoptera) are regions of amplification for ribosomal RNA cistrons (28 S and 18 S).
(3) A survey of 10 closely related species of Orthoptera indicated that high levels of cyclic GMP in the accessory gland occur in the subfamily Gryllinae, to which A. domesticus belongs.
(4) Eleven animal species were tested in the orders Diptera, Hymenoptera, Lepidoptera, Orthoptera, Acari, and Rodentia, using microsomes in some species from both induced and noninduced animals or insecticide-resistant and susceptible strains.
(5) Cysticercoids of Staphylocystis furcata (Stieda, 1962), the adults of which parasitize the shrews (Soricidae), were found in the thoracic and abdominal cavities of orthopterous insects (Orthoptera, Acridioidea) belonging to five species: Chorthippus apricarius (L.), Chorthippus paralellus (Zett.
(6) The application of a combined HPLC-RIA methodology to estimate immunoreactive PGE2 levels in two insect species, namely, males of the cricket Gryllus bimaculatus (Orthoptera, Gryllidae) and males and females of Blattella germanica (Dictyoptera, Blattellidae) is reported.
(7) In addition to two species of Teleogryllus, three other species of Orthoptera and nine out of ten species of Lepidoptera tested were susceptible to the virus.
(8) The use of polyclonal antisera directed against three peptides (ovulation hormone (CDCH), alpha, and beta caudodorsal cell peptide (alpha- and beta-CDCP) produced by the caudodorsal cells of the snail Lymnaea stagnalis resulted in positive immunoreaction in Sarcophaga bullata (Diptera), Leptinotarsa decemlineata (Coleoptera), Locusta migratoria, and Periplaneta americana (Orthoptera).
(9) In oocytes of various species of crickets (Orthoptera: Gryllidae) the amplified DNA is contained in a large extrachromosomal DNA body.
(10) The skeletal muscle of members of Orthoptera and Diptera receives an innervation which is probably glutaminergic.
(11) The twitch duration of mesothoracic wing muscles of the male katydid Neoconocephalus robustus (Insecta; Orthoptera; Tettigoniidae) decreases rapidly within the first 5 days of adulthood, to about half of its value in newly molted adults.
(12) Its experimental life cycle achieved in Orthoptera Locusta migratoria allows the study of the three first larval stages.
(13) Orthoptera have been used previously for such studies.
(14) The genome of the African migratory locust, Locusta migratoria (Class Insecta, Order Orthoptera, Family Acrididae) contains an interspersed DNA sequence family, designated the Lm1 family.
(15) DNAs from three grasshopper species and three locust species (Family Acrididae, Order Orthoptera) have been characterised by a variety of biochemical techniques as part of a general investigation of their molecular evolution.
(16) We studied heterogeneity, amplification and size of Acheta domesticus (insects; Orthoptera) ribosomal DNA and characteristics of male and female somatic or germ line rDNAs by analysis of genomic clones from a conventional and a microclone library.
(17) In insects, immunostaining of only the A1 type of the protocerebral median neurosecretory cells was revealed in all species tested of Odonata, Dictyoptera, Isoptera and Orthoptera and in 2 species from the 9 other orders out of 13 orders tested.
(18) The protein exhibits a bipartite structure: glycine-rich region located in its NH2-terminal part and a carboxy-terminal domain sharing homologies with other cuticular proteins of Orthoptera, Diptera and Lepidoptera.
(19) A tryptophanyl-tRNA synthetase (TrpRS)-immunoreactivity is localized in various neurosecretory cells of all ganglia of the central nervous system of the Orthoptera Locusta migratoria, except in deutocerebrum, and in endocrine cells of the midgut.