Purification and Molecular Cloning of Arginine Kinase from Tail Muscle of Crayfish, Procambarus Clarkii.

Spermiogenesis in the Crayfish (procambarus Clarkii)

The sperm of the crayfish, Procambarus clarkii, is relatively simple among decapod sperm and was described in the first paper of this series (28). The present paper details the development of this sperm as followed with the light and electron microscopes. The process is divided into six stages for purposes of description. The main points of interest discussed are the absence of mitochondria or ...

Repetitive DNA sequence from the crayfish Procambarus clarkii.

A repetitive DNA element was obtained from a crayfish genomic library while attempting to isolate the gene for the pigment concentrating hormone (PCH) with an oligonucleotide probe. The probe was directed to the coding region of the octapeptidic hormone deduced from the amino acid sequence of PCH (1). The isolated clone contained a 14 nucleotide sequence tandemly repeated 30 times; eleven nucle...

Molecular characterization of an epithelial Ca2+ channel-like gene from crayfish Procambarus clarkii.

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 with an open reading frame of 2169 bp encoding a protein of 722 amino acids with a predicted molecular mass of 81.7 kDa. Crayfish ECaC had 76-7...

Crayfish (Procambarus clarkii) Effects on Lentic Lake Water Quality

.......................................................................................................................................... 3 Acknowledgements ......................................................................................................................... 4

Red Swamp Crayfish (procambarus Clarkii) in River Nile, Egypt