(n.) Any one of many species of marine bivalve shells of the genus Mytilus, and related genera, of the family Mytidae. The common mussel (Mytilus edulis; see Illust. under Byssus), and the larger, or horse, mussel (Modiola modiolus), inhabiting the shores both of Europe and America, are edible. The former is extensively used as food in Europe.
(n.) Any one of numerous species of Unio, and related fresh-water genera; -- called also river mussel. See Naiad, and Unio.
Example Sentences:
(1) Conservationists have warned that they can affect fish growth and persist in the guts of mussels and fish that mistake them for food.
(2) In the mantle of the female sea mussel Mytilus galloprovincialis seasonal variations in the adenylate cyclase activity correlate with gonadal development.
(3) Brush border membrane vesicles were prepared from mussel gills using differential and sucrose density gradient centrifugation.
(4) Average wet-weight concentrations of sigmaDDT and PCBs in mussels from the four areas sampled were: Istrian coast, 65 and 76 ppb; Rijeka Bay, 58 and 75 ppb; Zadar, 36 and 128 ppb; Losinj Island, 167 and 133 ppb.
(5) To investigate the role of neurohumoral factors in acclimation of mussel muscle to a lowered salinity, studies have been made on the reaction of the intact mussel muscle and that of isolated muscle to change in the salinity from 26% to 10%.
(6) Mussels and oysters contaminated by the dinoflagellate showed similar toxins, but contained larger proportions of C3 (40-57 mole%) and more potent carbamate toxins (7-23 mole% total).
(7) Uptake from ambient water and the depuration of five chlorinated phenolics, two chloroguaiacols (3,4,5-tri- and tetrachloroguaiacol), and three chlorophenols (2,4,6-tri-, 2,3,4,6-tetra-, and pentachlorophenol) were studied in the duck mussel (Anodonta anatina).
(8) The exposure of the cells from mussel haemolymph and from mouse L1210 to a genotoxic compound such as dimethylsulfate results in DNA damage and consequently in a reduction of the unwinding time.
(9) Using this system, we now report the characterization of the biochemical and toxicological action of a toxic mussels extract, containing the excitatory amino acid domoic acid.
(10) Furthermore the micronuclei (MN) frequencies in wild mussels from four different field locations have been determined.
(11) Pseudomonas aeruginosa and its corresponding bacteriophages were sought in oysters and mussels throughout 1973.
(12) The UPTC and NASC strains included six from river water, two from mussels and four from sea water.
(13) Lateral cilia of freshwater mussel gills, which normally beat with metachronal rhythm, are arrested pointing frontally by perfusion with 6.25 to 12.5 millimolar calcium and 10(-5) molar A23187, a calcium ionophore.
(14) Moreover, the close similarity between this neurotoxic syndrome in experimental animals and the clinical picture witnessed in Canadian victims of mussel poisoning lends further credence to the assumption that this poisoning incident was caused by an interaction between the domoate molecule and kainate receptors in the human central nervous system.
(15) Sections for morphological examination showed evidence of increased digestive cell deletion in phenanthrene-treated mussels.
(16) Mussels and scallops were very rapidly contaminated showing high toxin accumulation rates, whereas rates for oysters and clams were low.
(17) In the shores where the detergents have not been used, the mussels have progressively excreted the hydrocarbons accumulated in their organism ; the other fixed animals have not been changed.
(18) Mussels were sampled from two sites in the Gulf of Trieste.
(19) These levels correspond to levels of 24 and 94 ppm in mussels.
(20) 1.1.1.44) activities measured in tissue extracts from sea mussel exhibit a potential unbalance which could cause an accumulation of 6-phosphogluconate.
Unio
Definition:
(n.) Any one of numerous species of fresh-water mussels belonging to Unio and many allied genera.
Example Sentences:
(1) The known range of the Primates is extended down from the middle Paleocene to the early Paleocene and late Cretaceous by a new genus and two new species from Montana, Purgatorius unio and P. ceratops.
(2) Some experiments including glucose loading, insulin or antiinsulin serum injection and in vitro investigations on bivalve freshwater molluscs Anodonta cygnea and Unio pectorum were carried out.
(3) Fragmentary mandibles of Purgatorius unio Van Valen and Sloan from the Puercan (approximately early Paleocene), Garbani Locality, Montana, preserve associated postcanines.
(4) Etching with the glutaraldehyde-acetic acid solution reveals that the nacreous tablets in Mytilus, Nucula, and Unio are composed of four crystal individuals which occur in two structurally different pairs and which are probably cyclically twinned.
(5) This report uses the classification and nomenclature adopted by UICC (Unio Internationalis Contra Cancrum) in 1965.
(6) Isolated, demembranated Unio gill cilia that have been activated and fixed for thin-section electron microscopy in the presence of 2 mM MgSO4 have 87% of their outer dynein arms attached to an adjacent B subfiber.
(7) A combination of hplc in the silver ion mode and gc-ms of picolinyl ester derivatives was used to identify the fatty acids in a fresh-water mussel, Unio tumidus, from the Danube in Bulgaria.
(8) In the less-soluble crystal pair of Nucula and Unio, the lamellar structure is absent.
(9) The osphradial organ has been studied in Lamellibranchia--Unio pectorum--by means of scanning and transmissive electron microscopy.
(10) Transepithelial ion transport was studied in three types of shell-facing mantle epithelia of the freshwater clam, Unio complanatus.
(11) Diethylnitrosamine (DENA) and dimethylnitrosamine (DMNA) dissolved in tank water induced neoplasms in bivalve mollusks Unio pictorum.
(12) Cadmium dosing experiments were carried out with the freshwater clam Unio pictorum in flow-through micro-streams in order to obtain additional information on the kinetics of cadmium accumulation and elimination.
(13) We studied the differentiation of the polarized site of sperm entrance in the egg of a freshwater bivalve, Unio elongatulus.
(14) The concentrations of toxic heavy metals (Hg, Cd, Cr, Cu, Zn and Pb) were measured by atomic absorption spectrophotometry in the gills of mussels (Unio pictorum L.) both living in Lake Balaton as well as transferred to various parts of tributaries of the Lake.
(15) A substance with insulin-like activity was obtained from visceral organs (excluding foot, gills and mantle) of the freshwater bivalve molluscs Unio pictorum and Anodonta cygnea.
(16) Insulin-like immunoreactivity can be localized in the cells of the mid-gut of Unio pictorum Lam.
(17) A study was made of changes in the heat resistance of spermatozoa during their incubation in Ringer's solution, using two species of frogs (Rana temporaria and R. ridibunda) and of bivalve molluscs (Unio crassus and U. tumidus).
(18) Cells of the Unio tumidus gill ciliated epithelium were exposed to a supraoptimal temperature of 40 degrees C for the period from 30 seconds till a complete cessation of ciliar beating.
(19) We studied the organization of the egg of a freshwater bivalve, Unio elongatulus.
(20) However, it has no influence on the vitality of the coelomocytes of Lumbricus terrestris and other lumbricides, nor on the hemocytes of the snail Helix pomatia, the mussels Anodonta cygnea and Unio tumidus, free cells of the turbellarian Euplanaria sp.