Results 101 to 110 of about 9,943 (122)

Purification and properties of glycogen phosphorylase a from the muscle of the blue crab, Callinectes danae

Archives of Biochemistry and Biophysics, 1974
Abstract Blue crab muscle ( Callinectes danae ) glycogen phosphorylase a was purified by adsorption of a crude extract on a starch column, elution with a dilute glycogen solution, selective precipitation with ammonium sulfate, dialysis against a solution containing ammonium sulfate and ethylenediaminetetraacetate, followed by centrifugation and ...
D, Santiago, P A, Santiago, A M, Block, F, Sagardía   +3 more
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High prevalence of CsRV2 in cultured Callinectes danae: Potential impacts on soft-shell crab production in Brazil

Journal of Invertebrate Pathology, 2022
Crabs can be infected by a variety of pathogenic micro-organisms but the most damaging are viruses. Naturally-occurring Callinectes sapidus reovirus 1 (CsRV1) is thought to contribute to mortality of Callinectes sapidus in soft crab culture in the USA.
Camila, Prestes Dos Santos Tavares, Mingli, Zhao, Éverton, Lopes Vogt, Jorge, Felipe Argenta Model, Anapaula, Sommer Vinagre, Ubiratan, de Assis Teixeira da Silva, Antonio, Ostrensky, Eric, James Schott   +7 more
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Feeding activity of Callinectes ornatus Ordway, 1863 and Callinectes danae Smith, 1869 (Crustacea, Brachyura, Portunidae) in Ubatuba, SP, Brazil

Hydrobiologia, 2001
The feeding activity along the day cycle and the time consumed for extracellular digestion were evaluated in the portunids C. ornatus and C. danae. Swimming crabs were obtained from trawling in Ubatuba bay, Sao Paulo, Brazil, during both the rainy and dry seasons.
Alvaro Luiz Diogo Reigada, Maria Lucia Negreiros-Fransozo   +1 more
openaire   +1 more source

The glycogen phosphorylase system from the muscle of the blue crab: Callinectes danae

Comparative Biochemistry and Physiology, 1969
Abstract 1. 1. Glycogen phosphorylase in extracts from blue crab muscle, Callinectes danae, was assayed at pH 6·6 in presence of cysteine. 2. 2. Two interconvertible forms of the enzyme are present: b has a total AMP∗ requirement for activity; a partial requirement. The btoa conversion requires ATP and kinase which precipitates at pH 5·7; the
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Population biology of Callinectes danae and Callinectes sapidus (Crustacea: Brachyura: Portunidae) in the south-western Atlantic

Journal of the Marine Biological Association of the United Kingdom, 2009
The capture of crabs of the genus Callinectes is one of the oldest extractive activities practised by waterside communities, due to the abundance of brachyurans along the Brazilian coast. The present paper aimed to provide basic information on the population biology of C. sapidus and C.
Mário José Pereira, Joaquim Olinto Branco, Martin Lindsey Christoffersen, Felipe Freitas, Hélio Augusto Alves Fracasso, Tuane Cristine Pinheiro   +5 more
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Physiological and behavioral effects of chemoreceptors located in different body parts of the swimming crab Callinectes danae

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2007
By perfusing their branchial chambers with filtered seawater, we have developed a preparation that allows us to maintain the swimming crab Callinectes danae outside water without any major effects on its cardiac activity. This in turn allowed us to selectively stimulate chemoreceptors located in different body parts, and specifically to discriminate ...
Juan F, Aggio, José C, de Freitas
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The ovarian cycle histochemistry and its relationship with hepatopancreas weight in the blue crabCallinectes danae(Crustacea: Portunidae)

Acta Zoologica, 2013
Zara, F.J., Gaeta, H.H., Costa, T.M., Toyama, M.H. and Caetano, F.H. 2011. The ovarian cycle histochemistry and its relationship with hepatopancreas weight in the blue crab Callinectes danae (Crustacea: Portunidae).
Marcos H Toyama, Fernando José Zara, Tania Marcia Costa   +2 more
exaly   +2 more sources

Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil

Hydrobiologia, 2000
The population genetic structure of the swimming crab Callinectes danae (Crustacea, Portunidae) was studied by allozyme electrophoresis along the southern coast of Brazil (Santa Catarina and Rio Grande do Sul States). The biology of C. danae is poorly known, but some studies suggest that this species depends on estuaries for reproduction and for ...
L. I. Weber, J. A. Levy
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Morphology and development of the male reproductive tract in Callinectes danae (Crustacea: Brachyura)

Acta Zoologica, 2017
AbstractThe aim of this study was to characterize the morphology and function of each section of the reproductive system of male Callinectes danae, as well as the stages of reproductive development and their relation to secondary sexual characteristics. Development of their reproductive system begins after completion of the pubertal moult.
Renata A. Shinozaki‐Mendes, Rosângela Lessa   +1 more
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Gill microsomal (Na+,K+)-ATPase from the blue crab Callinectes danae: Interactions at cationic sites

The International Journal of Biochemistry & Cell Biology, 2005
Euryhaline crustaceans tolerate exposure to a wide range of dilute media, using compensatory, ion regulatory mechanisms. However, data on molecular interactions occurring at cationic sites on the crustacean gill (Na+,K+)-ATPase, a key enzyme in this hyperosmoregulatory process, are unavailable. We report that Na+ binding at the activating site leads to
D C, Masui, R P M, Furriel, E C C, Silva, F L M, Mantelatto, J C, McNamara, H, Barrabin, H M, Scofano, C F L, Fontes, F A, Leone   +8 more
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