Organization of a phyllobranchiate gill from the green shore crab Carcinus maenas (Crustacea, Decapoda)

Cavey, Michael J.; Goodman, Saul H.

Organization of a phyllobranchiate gill from the green shore crab Carcinus maenas (Crustacea, Decapoda)

dc.contributor.author	Cavey, Michael J.	en
dc.contributor.author	Goodman, Saul H.	en
dc.contributor.department	Biological Sciences	en
dc.contributor.faculty	Faculty of Science	en
dc.contributor.institution	University of Calgary	en
dc.date.accessioned	2006-08-14T21:10:44Z
dc.date.available	2006-08-14T21:10:44Z
dc.date.issued	1990
dc.description	Copyright held by publisher	en
dc.description.abstract	The phyllobranchiate gills of the green shore crab Carcinus maenas have been examined histologically and ultrastructurally. Each gill lamella is bounded by a chitinous cuticle. The apical surface of the branchial epithelium contacts this cuticle, and a basal lamina segregates the epithelium from an intralamellar hemocoel. In animals acclimated to normal sea water, five epithelial cell types can be identified in the lamellae of the posterior gills: chief cells, striated cells, pillar cells, nephrocytes, and glycocytes. Chief cells are the predominant cells in the branchial epithelium. They are squamous or low cuboidal and likely play a role in respiration. Striated cells, which are probably involved in ionoregulation, are also squamous or low cuboidal. Basal folds of the striated ceils contain mitochondria and interdigitate with the bodies and processes of adjacent ceils, Pillar cells span the hemocoel to link the proximal and distal sides of a lamella. Nephrocytes are large, spherical cells with voluminous vacuoles. They are rimmed by foot processes or pedicels and frequently associate with the pillar cells. Glycocytes are pleomorphic cells packed with glycogen granules and multigranular rosettes. The glycocytes often mingle with the nephrocytes. Inclusion of the nephrocytes and glycocytes as members of the branchial epithelium is justified by their participation in intercellular junctions and their position internal to the epithelial basal lamina.	en
dc.description.refereed	yes	en
dc.format.extent	6895262 bytes
dc.format.mimetype	application/pdf
dc.identifier.citation	Saul H, Goodman and Michael J. Cavey "Organization of a phyllobranchiate gill from the green shore crab Carcinus maenas (Crustacea, Decapoda)" Cell Tissue Res (1990) 260:495-505	en
dc.identifier.doi	http://dx.doi.org/10.11575/PRISM/30236
dc.identifier.issn	0302-766X
dc.identifier.uri	http://hdl.handle.net/1880/43421
dc.language.iso	en	en
dc.publisher	Springer-Verlag	en
dc.subject	Biology	en
dc.subject.other	Cuticle	en
dc.subject.other	Epithelium	en
dc.subject.other	Branchial	en
dc.subject.other	Gills	en
dc.subject.other	Hemocoel	en
dc.subject.other	Histology	en
dc.subject.other	Ultrastructure	en
dc.subject.other	Carcinus maenas (Crustacea)	en
dc.title	Organization of a phyllobranchiate gill from the green shore crab Carcinus maenas (Crustacea, Decapoda)	en
dc.type	journal article