Results 161 to 170 of about 7,817 (206)
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Superoxide dismutase in Sepia officinalis L.
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1981Abstract 1. 1. Fractionation of a crude banchial gland extract of Sepia officinalis L. on a ACA-22 column resulted in five protein fractions. The presence of superoxide dismutase (SOD) was established in three of them (P3, P4 and P5). The bulk of the SOD activity was present in fraction P4. 2. 2. The enzyme was temperature sensitive.
G.H. Wolf, R. Heyneman, W. Decleir
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Sign tracking in cuttlefish (Sepia officinalis).
Journal of Comparative Psychology, 1999Two groups of cuttlefish (Sepia officinalis) were used to demonstrate classical conditioning in this species and to determine whether the resulting approach response would be that of sign tracking or goal tracking. For cuttlefish in the paired condition, a flashing light was presented at one end of a long tank followed by food dropped into the center ...
J E, Purdy, A C, Roberts, C A, Garcia
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2019
The present study investigates the fisheries of cuttlefish Sepia officinalis in the Gulf of Thermaikos with trammel nets and netting traps. Specifically, the two fishing methods were compared in terms of 1) species composition 2) discarding practices, 3) duration, incomes and cost 4) seasonal fluctuations in daily catches of cuttlefish and other ...
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The present study investigates the fisheries of cuttlefish Sepia officinalis in the Gulf of Thermaikos with trammel nets and netting traps. Specifically, the two fishing methods were compared in terms of 1) species composition 2) discarding practices, 3) duration, incomes and cost 4) seasonal fluctuations in daily catches of cuttlefish and other ...
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The quaternary structure of Sepia officinalis haemocyanin
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1986Abstract The haemocyanin (Hc) of Sepia officinalis is constituted of ten identical subunits ( M r about 390 000), which consist of eight functional (dioxygen-binding) units, designated by the letters a–h . A model is proposed for the quaternary structure of this HC, based on immuno-electron microscopy of whole molecules and on morphological ...
Trijntje Wichertjes +5 more
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Learning performances and aging in cuttlefish (Sepia officinalis)
Experimental Gerontology, 1992The use of an associative learning protocol with negative reinforcement allowed us to compare the performances of three groups of animals: young, middle-aged, and senescent. Statistical analysis of the results does not enable us to assert that a significant difference exists between the learning speeds of young and senescent animals.
R, Chichery, M P, Chichery
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Die Pericardialdrüse von Sepia officinalis
Zeitschrift für vergleichende Physiologie, 1931Bei Sepia officinalis last sich die Pericardialdruse beiderseitig entfernen. Die Tiere machen zunachst einen vollig normalen Eindruck, gehen aber langstens in viermal 24 Stunden zugrunde. Exstirpiert man nur ein Organ und bindet das andere nur ab, so wird die Lebensdauer etwas verlangert.
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Ein Polychrest aus verschiedenen Blickwinkeln: Sepia officinalis
Allgemeine Homöopathische Zeitung, 2022In Hahnemanns Arzneimittellehre sind rund 120 Arzneien enthalten, darunter vorwiegend Pflanzen und chemische Substanzen. Nur ganz wenige Arzneimittel stammen aus tierischen Quellen, darunter Ambra grisea, Carbo animalis, Calcium carbonicum, Cantharis vesicatoria, Moschus, Spongia
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Carbonic anhydrase of Sepia officinalis L
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1971Abstract 1. 1. Carbonic anhydrase of the mantle muscle of the cephalopod, Sepia officinalis, is a zinc protein, comparable to the highly active soluble vertebrate isoenzyme present in human and bovine red blood cells. 2. 2. A procedure for the extraction of the membrane bound enzyme using detergents, acetone and centrifugation is presented ...
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GnRH in the brain and ovary of Sepia officinalis
Peptides, 2009We have cloned from brain, ovary and eggs of the cephalopod Sepia officinalis a 269-bp PCR product, which shares 100% sequence identity with the open reading frame of GnRH isoform isolated from Octopus vulgaris. Similar to Octopus, this sequence encodes a peptide that is organized as a preprohormone from which, after enzymatic cleavage, a dodecapeptide
C. DI CRISTO, E. DE LISA, DI COSMO, ANNA
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Immuno-EM of Sepia officinalis hemocyanin
1986Negatively stained molecules of Sepia officinalis hemocyanin (Hc) (Mr 3.8×106) have the form of a partly hollow cylinder with 350 A diameter and 170 A height. The circular profiles show material inside the cylinder: the so-called collar which has 5-fold (or possibly 10-fold) symmetry (1). At higher pH values this Hc dissociates into five subunits, each
T. Wichertjes +5 more
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