Results 161 to 170 of about 17,434 (209)
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The biosynthesis of phospholipids in the lobsters, Homarus americanus
Comparative Biochemistry and Physiology, 1969Abstract 1. 1. The ability of intact lobster to synthesize phospholipids from radioisotopically labeled precursors was examined. 2. 2. There was incorporation of 32P-disodium phosphate, glycerol-1,3-14C, choline-methyl-14C, phosphorylcholine-methyl-14C, ethanolamine-1-2-14C, phosphorylethanolamine-1-2-14C and S- adenosyl- l -methionine ...
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Catalytic properties of lactate dehydrogenase in Homarus americanus
Archives of Biochemistry and Biophysics, 1977Abstract Lobster tail and leg lactate dehydrogenases (LDH) have been characterized kinetically. The four binding sites for reduced coenzyme have been shown to be equivalent for the enzyme purified from lobster tail muscle. For the reduced form of 3-acetyl pyridineadenine dinucleotide, the K a = 1.4 × 10 7 M −1 S −1 . The activity of the enzyme
R D, Eichner, N O, Kaplan
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A new mycosis of larval lobster (Homarus americanus)
Journal of Invertebrate Pathology, 1976Abstract A phycomycetous fungus belonging to the genus Lagenidium has been found in laboratory-rearing systems for larvae of the American lobster, Homarus americanus. When first and second stages were found to be infested with the fungus, ultimate mortality was in excess of 90%.
E H, Nilson, W S, Fisher, R A, Shleser
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Safety of Florfenicol in the Adult Lobster (Homarus americanus)
Journal of Zoo and Wildlife Medicine, 2011Aerococcus viridans, the causative agent of the disease gaffkemia, was a major cause of mortality in lobsters (Homarus americanus) held in tidal impoundments during the 1970s and 1980s. Despite reports of an increase in the mortality of lobsters during impoundment, and the widespread prophylactic use of oxytetracycline against A.
David, Basti +2 more
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Arterial system of the gill of the lobster,Homarus americanus
Journal of Morphology, 1997Three-dimensional architecture of the branchial artery and venous vasculature of Homarus americanus was studied by the method of corrosion cast or styrene cracking and by scanning electron microscopy. Four arteries, the epibranchial (EA) and hypobranchial arteries (HA) on the septal wall of the afferent and efferent vessels, respectively, and two ...
Y, Inoue, M, Ueno, S, Baba
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Mesostructure of the Exoskeleton of the Lobster Homarus Americanus
MRS Proceedings, 2005AbstractThe exoskeleton of the lobsterHomarus americanusis a multiphase bio-composite which consists of a fibrous organic matrix (crystalline α-chitin and various types of non-crystalline proteins) and embedded biominerals (mainly calcite). In this study we present experimental data about the microscopic and mesoscopic structure of this material.
Raabe, D., Sachs, C.
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Developmental expression of the octopamine phenotype in lobsters,Homarus americanus
The Journal of Comparative Neurology, 1996We have used immunocytochemical methods to examine the sequence of appearance of octopamine-immunoreactive neurons during development, and to try to correlate that appearance with the emergence of behavioral or physiological capabilities. The first octopamine neurons express their transmitter phenotype at approximately 43% of embryonic development. The
H, Schneider +5 more
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Beta-alanine distribution in the lobster, Homarus americanus
Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1975Abstract 1. 1. Whereas the distribution in lobster of γ-aminobutyric acid (GABA) was restricted to nerve and muscle tissues, that of beta-alanine (BA) was more widespread and uniform. 2. 2. In abdominal, thoracic and subesophageal nerve cords and in cleaned peripheral motor nerve fibers, the GABA-BA ratio was 2–5 : 1. 3. 3. In walking leg
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Neuromuscular Transmission in the Heart of the Lobster Homarus americanus
1969Contractions of the single-chambered neurogenic lobster heart are produced by spontaneous bursts of impulses generated by neurons in the cardiac ganglion1,2*. In this study dangling microelectrodes were used to record intra-cellularly from single, striated cardiac muscle fibers of isolated lobster hearts.
M, Anderson, I M, Cooke
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Diseases of American lobsters (Homarus americanus): A review
Journal of Invertebrate Pathology, 2011The American lobster fishery is a significant economic driver in coastal communities of North America. Increasingly, the impacts of infectious disease are recognized as important components and factors in the population ecology and subsequent management of the lobster fishery. Both environmental and anthropogenic factors impact marine diseases.
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