PMID: 9524731Apr 3, 1998Paper

Regulation of crustacean neurosecretory cell activity

Cellular and Molecular Neurobiology
U García, Hugo Aréchiga

Abstract

1. The X organ-sinus gland system is a conglomerate of 150-200 neurosecretory cells in the eyestalk of crustaceans. It is the source of a host of peptide neurohormones which partake in the control of a wide range of physiological functions. Distinct families of X organ peptides have been chemically characterized: (a) two chromatophorotropic hormones of small sizes, one of 8 residues and the other of 15-20 residues; and (b) three metabotropic hormones of high molecular weight (70-80 residues), related to the control of blood sugar levels, molting, and gonad activity. Some of these hormones have been identified only in crustaceans; others are common to various arthropod groups. A number of peptides orginally described in other zoological groups are also present in the X organ-sinus gland system; such is the case for members of the FMRF-amide family, enkephalins, and other peptides. 2. Cells specifically containing each hormone have been located in the X organ and some information is available on the cellular and molecular substrate of the biosynthesis, transport, storage, and release of various hormones. The electrical activity of X organ neurons has been recorded at the cell soma, arborizations, axons, and neurosecretory termina...Continue Reading

Citations

Jul 29, 2005·Cellular and Molecular Neurobiology·Ramón Alvarez AlvaradoHugo Aréchiga
Feb 1, 2006·Synapse·Gabina Calderón-RoseteLeonardo Rodríguez-Sosa
Jul 26, 2018·International Journal of Molecular Sciences·Leonor Mendoza-VargasHéctor Solís-Chagoyán
Jan 11, 2001·Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Médicas E Biológicas·E A SantosL Lopez
Nov 6, 2007·The Journal of Experimental Biology·Jorge Cebada, Ubaldo García
Aug 20, 2005·The Journal of Experimental Biology·Simonetta LorenzonEnrico Antonio Ferrero
Jan 13, 2009·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Joseph A CoviDonald L Mykles

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