Results 131 to 140 of about 391 (175)

Dynamics of glucocorticoids in the ontogenesis of freshwater crawfish Astacus leptodactylus Esch

Russian Journal of Developmental Biology, 2011
Dynamics of changes in glucocorticoid (hydrocortisone and corticosterone) levels was studied in the ontogenesis of freshwater crawfish Astacus Leptodactylus Esch. It was shown that steroid concentrations increase during the embryogenesis period. Decrease in the glucocorticoid levels during postembryonic development is most probably related to the ...
S M, Nikitina, N V, Chibisova
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Application of microsatellite analysis on Astacus astacus and Astacus leptodactylus populations from Croatia – preliminary results

2015
Recently, microsatellite markers have been successfully applied to reveal genetic patterns in populations of different European crayfish species. In this preliminary research, we used four microsatellites primarily aiming to check their possible usefulness in detecting hybrids between noble and narrow-clawed crayfish.
Štambuk, Anamaria, Jelić, Mišel, Maguire, Ivana, Klobučar, Göran, Vucić, Matej   +4 more
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Astacus leptodactylus.

2010
Astacus leptodactylus is partially protected in Uzbekistan where it is listed in the The Red Data Book of Uzbekistan but under the name Pontastacus kessleri. It is also listed in the Red Data Book for Moscow. Harvesting of this species in Turkey during the spawning season is prohibited.
GHERARDI, FRANCESCA, C. SOUTY GROSSET
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High-throughput discrimination of bacteria isolated from Astacus astacus and Astacus leptodactylus

2013
Bacterial diseases and pathogens of crayfish are common, widespread, and occasionally causing serious mortalities. In order to take rapid measures for correct treatment of crayfish diseases, the turnover time and accuracy in bacterial identification is an issue. Bacteria isolated from tissues of apparently healthy Astacus astacus and A.
Strunjak-Perović, Ivančica, Topić Popović, Natalija, Čož-Rakovac, Rozelindra, Barišić, Josip, Jadan, Margita, Kazazić, Snježana, Maguire, Ivana, Sauerborn Klobučar, Roberta, Klobučar, Göran   +8 more
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Further studies on the blue carotenoprotein from Astacus leptodactylus

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1988
Abstract 1. 1. The isoelectric point from the blue carotenoprotein from the carapace of the crayfish Astacus leptodactylus was estimated by isoelectric focusing as 4.56 ± 0.05 (average value). 2. 2. The two subunits of the protein moiety were separated by chromatofocusing, showing isoelectric points of about 6.15 (A 1 ) and 5.3 (A 2 ). Both
Javier D.L. Rivas, Jose Carlos G. Milicua, Ramon Gomez   +2 more
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A yellow carotenoprotein from the carapace of the crayfish Astacus leptodactylus

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1986
Abstract 1. 1. Yellow carotenoprotein (λmax = 385 nm) containing astaxanthin and zeaxanthin, in a 1:1 relative ratio, as prosthetic group, was extracted and purified from the exoskeleton of the crayfish Astacus leptodactylus. The complex contained 12 carotenoid molecules per molecule of protein. 2. 2.
J.C.G. Milicua, I. Arberas, P.G. Barbón, A.M. Gárate, R. Gomez   +4 more
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Changes in ecdysteroids in Astacus leptodactylus during the molting cycle

Comparative Biochemistry and Physiology Part A: Physiology, 1988
Abstract 1. 1. The changes in ecdysteroid titers were monitored in the hemolymph and integument of the crayfish Astacus leptodactylus at each stage of the molt cycle. Hemolymph titers rose slightly during the long C4 stage, and then considerably, between the late D1 and D2 stages.
Michele Durliat, Madeleine Moriniere, Patrick Porcheron   +2 more
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Energetics of ion transport in the gills of the crayfish Astacus leptodactylus esch

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1971
Abstract 1. 1. In isolated crayfish gills the ion transport against their concentration gradient is an active process inhibited by such metabolic inhibitors as cyanide, 2,4-dinitrophenol and iodoacetate. 2. 2. Dinitrophenol and iodoacetate do not penetrate the gill surface and their activity can be observed only when the inhibitors are ...
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[Analysis of the hemocyte proteins from Astacus leptodactylus].

Comptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles, 1976
Three soluble proteins exist in the haemocytes of Astacus leptodactylus in an appreciable amount. The first one is "fibrinogen" apparently in its monomer state, which is at the origin of the clottable plasmatic protein. The second is assumed to be a slow hemocyanin and the third to be a molt fraction.
M, Durliat, R, Vranckx
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The effects of temperature on a neuromuscular system of the crayfish,Astacus leptodactylus

Journal of Comparative Physiology ? A, 1977
1. Slow and fast contractions, as well as the corresponding excitatory junction potentials (ejp's) were recorded from the closer muscle (adductor of the dactylopodite) of the third walking legs, subjected to temperatures ranging from +6 °C to +32 °C.
Mikko Harri, Ernst Florey
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