Article (Scientific journals)
Ultrastructural analysis of the integument during the moult cycle in Ligia italica (Crustacea, Isopoda)
Strus, Jasna; Compère, Philippe
1996In Pflügers Archiv: European Journal of Physiology, 43, p. 251-R252
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Keywords :
Crustacea; Isopoda; integument; cuticle; moult; mineralization
Abstract :
[en] The formation of the cuticle was investigated during moulting of the isopod crustacean Ligia italica. The intermoult cuticle is a four-layered lamellar structure composed of chitin-protein fibrils and mineralized in its upper half. The distribution of calcium carbonate in cuticle during moult cycle was determined by cytochemical methods and X-ray microanalysis, Epi-and exocuticle are secreted during premoult. Calcium is resorbed from the old cuticle and accumulates in the ecdysal gap as calcium granules. Endocuticle is secreted after moult when the mineralization of exocuticle starts. The shape and ultrastructure of epithelial cells change during cuticle secretion and mineralization. Mitochondria, bundles of filaments, calcium granules and large amounts of glycogen accumulate in the apical cytoplasm of cells in premoult animals.
Disciplines :
Zoology
Author, co-author :
Strus, Jasna;  University of Ljubljana, Slovenia > Biology
Compère, Philippe ;  Université de Liège > Département de Biologie, Ecologie et Evolution > Département de Biologie, Ecologie et Evolution
Language :
English
Title :
Ultrastructural analysis of the integument during the moult cycle in Ligia italica (Crustacea, Isopoda)
Publication date :
1996
Journal title :
Pflügers Archiv: European Journal of Physiology
ISSN :
0031-6768
eISSN :
1432-2013
Publisher :
Springer Science & Business Media B.V.
Volume :
43
Pages :
R251-R252
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 September 2015

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