Results 111 to 120 of about 155 (141)

Kinetics of glycogen phosphorylase a from the muscle of the blue crab, Callinectes danae

Archives of Biochemistry and Biophysics, 1974
Abstract The kinetics of purified glycogen phosphorylase a from the muscle of the blue crab ( Callinectes danae ) were studied in the direction of glycogen synthesis, and in the direction of glycogen degradation with P i or arsenate as substrates. The effects of AMP, UDPG, G-6- P , glucose, and arsenate on the appropriate systems were studied. AMP
P A, Santiago, D, Santiago, A M, Block, F, Sagardía   +3 more
openaire   +2 more sources

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
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +2 more sources

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
openaire   +2 more sources

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
openaire   +2 more sources

An environmental forensic approach for tropical estuaries based on metal bioaccumulation in tissues of Callinectes danae

Ecotoxicology, 2015
The blue crab Callinectes danae is distributed throughout the Atlantic coast and this study aimed to evaluate a environmental forensics approach that could be applied at tropical estuarine systems where this species is distributed, based on the metal concentrations in its tissues.
Isabella C A C, Bordon, Jorge E S, Sarkis, Nathalia P, Andrade, Marcos A, Hortellani, Deborah I T, Favaro, Mauricio H, Kakazu, Marycel E B, Cotrim, Raquel T, Lavradas, Isabel, Moreira, Tatiana D, Saint'Pierre, Rachel Ann, Hauser-Davis   +10 more
openaire   +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
openaire   +1 more source

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
openaire   +1 more source

Cardio-respiratory function of swimming blue crab Callinectes danae Smith, during normoxia and graded hypoxia

Journal of Experimental Marine Biology and Ecology, 1996
Abstract Swimming blue crabs Callinectes danae Smith were studied as to the respiratory (oxygen uptake, MO2 and scaphognathite beat frequency, fsc) and cardiac (ECG and heart beat frequency, fH) responses to normoxia (154 mmHg) and graded hypoxia (130, 100, 70, 50, 30 and 20 mmHg). C.
Francisco Tadeu Rantin, Ana Lúcia Kalinin, JoséCarlos de Freitas   +2 more
openaire   +1 more source