... growth and its construction is an energy-demanding process. Ecdysis, the shedding event of the old cuticle, is preceded by a preparatory phase, termed premolt, in which the present cuticle is partially degraded and a new one is formed underneath it. Procambarus clarkii (Girard 1852), an astacid...

... 10 2007 © The Company of Biologists Limited 2007 2007 crayfish dominance agonistic behaviour mirror image Procambarus clarkii Aggression exhibited by crayfish as well as other crustacean species has been well documented ( Heckenlively,1970 ; Edwards and Kravitz,1997...

...Yongping Gao; Michele G. Wheatly SUMMARY This study describes the cloning, sequencing and functional characterization of an epithelial Ca 2+ channel (ECaC)-like gene isolated from antennal gland (kidney) of the freshwater crayfish Procambarus clarkii. The full-length cDNA consisted of 2687 bp...

...John C. Tuthill; Sönke Johnsen SUMMARY We tested the hypothesis that polarization sensitivity enhances the detection of moving, transparent objects by examining the escape response of the red swamp crayfish ( Procambarus clarkii Girard) from a visual threat. A transparent, birefringent target...

... submissively by tailflipping and retreating. To evaluate whether the differences in social behavior are accompanied by differences in responses to non-social stimuli, we exposed socially naïve and experienced crayfish ( Procambarus clarkii ) to an unexpected touch in different social conditions. Socially...

...DeForest Mellon, Jr SUMMARY Intracellular electrodes were used to record from local interneurons in the olfactory lobes of the midbrain in the crayfish Procambarus clarkii. Cells that resembled previously studied central targets of olfactory receptor neurons on the lateral antennular flagellum were...

... calcium imaging contraction GABA Procambarus clarkii The crayfish claw opener (abductor) muscle is innervated by a glutamate-releasing, excitatory axon and a GABA (γ-aminobutyric acid)-releasing, inhibitory axon ( Van Harreveld, 1939 ) ( Fig. 1 ). There is also an inhibitory neuron common...

... expression is upregulated during periods of elevated Ca 2+ influx associated with postmolt cuticular mineralization. This paper describes the cloning, sequencing and functional characterization of a novel PMCA3 gene from the antennal gland(kidney) of the crayfish Procambarus clarkii. The complete sequence...

... (e-mail: biojhh@langate.gsu.edu ) † Present address: Emory University, PO Box 26177, Atlanta, GA 30322, USA 22 3 2004 © The Company of Biologists Limited 2004 2004 crayfish Procambarus clarkii dragonfly nymph Anax junius predator prey escape The neural...

... photosensitive to blue light spectra and ubiquitous in animals and plants, in the putative pacemakers of Procambarus clarkii, namely the eyestalk and brain, at different times of the 24 h light:dark cycles. Using different experimental light protocols and by means of qualitative/quantitative immunofluorescence...

...Toshiki Nagayama SUMMARY The modulatory effect of serotonin on local circuit neurones forming the uropod motor control system of the crayfish Procambarus clarkii Girard was analysed electrophysiologically. Bath application of 10 μmol l -1 serotonin caused a decrease in the tonic spike activity...

...Dongdong Chen; Zhiping Zhang; Michele G. Wheatly; Yongping Gao SUMMARY This paper describes the cloning and functional characterization of the heart muscle isoform of Sarco/endoplasmic reticulum Ca 2+ -ATPase(SERCA) from crayfish Procambarus clarkii . The complete crayfish heart SERCA, identified...

... and is stabilized by four disulphide bridges. It is lethal to crustaceans ( Cambarellus montezumae ), less toxic to insects (crickets) and non-toxic to mammals (mice) at the doses assayed. In neurons isolated from the X organ–sinus gland system of the crayfish Procambarus clarkii , it blocks the Na + currents...

... Procambarus clarkii at two developmental stages, post-embryonic stage two (PO2) and the juvenile stage, at three different times of day, under a photoperiod cycle of 12 h:12 h L:D, using qualitative and quantitative immunohistochemical methods. In the retina, CHH immunoreactivity is located in the tapetal...

... © 2001 by Company of Biologists 2001 crayfish Procambarus clarkii flow cytometry sarco/endoplasmic reticulum Ca 2+ -ATPase plasma membrane Ca 2+ -ATPase Na + /Ca 2+ exchanger polyclonal antibody Tissues of interest were dissected, immersed and embedded in OCT compound...

...Newton H. Copp; Marc Jamon ABSTRACT The kinematic patterns of defense turning behavior in freely behaving specimens of the crayfish Procambarus clarkii were investigated with the aid of a video-analysis system. Movements of the body and all pereiopods, except the chelipeds, were analyzed. Because...

...Zhiping Zhang; Dongdong Chen; Michele G. Wheatly ABSTRACT The discontinuous pattern of muscle growth during the moulting cycle of a freshwater crustacean (the crayfish Procambarus clarkii ) was used as a model system to examine the regulation of the expression of S arco/ E ndoplasmic R eticulum C...

... 1999 dominance hierarchy tailflip escape retreat attack behaviour crayfish Procambarus clarkii Within a population of social animals, conflict will arise between unacquainted animals over the division of a valuable resource that is in limited supply ( Pusey and Packer, 1997...

...Paolo Domenici; Josef Schmitz; Marc Jamon ABSTRACT Curve walking in two species of crayfish, Procambarus clarkii and Astacus leptodactylus , was investigated to test whether the mechanism underlying curve walking is the synchronous action of a centrally pre-programmed leg tripod or whether...

... proprioception chordotonal organ interneurone escape behaviour crayfish Procambarus clarkii Coordinated behaviour requires that movements of one segment or limb fit into the context of what another may be doing. This means there must be bilateral and intersegmental coordination of the local...