Regional Differences in the Apical F-Actin Cytoskeleton of Silk Gland-Cells of Calpodes-Ethlius (Stoll) (Lepidoptera, Hesperiidae)

Henderson, S. C., Locke, M. (1991) Regional Differences in the Apical F-Actin Cytoskeleton of Silk Gland-Cells of Calpodes-Ethlius (Stoll) (Lepidoptera, Hesperiidae). International Journal of Insect Morphology & Embryology, 20 (6). pp. 309-317. ISSN 0020-7322

URL: http://www.sciencedirect.com/science/article/pii/0...
DOI: 10.1016/0020-7322(91)90019-6

Abstract

Silk glands of the larvae of Calpodes ethlius, Stoll (Lepidoptera : Hesperiidae) were labelled with rhodaminyl-phalloin, which is specific for f-actin. Most f-actin lies below the apical cell surface in bundles oriented in rings around the lumen of the gland. By the fifth larval stadium, the density of bundles differs in the 5 regions of the gland, the greatest density occurring in the narrower anterior regions. The greater bundle density may be correlated with the increased hoop stress where the gland has the smallest diameter. F-actin from the bundles redistributes during larval moults to coat vacuoles in the cytoplasm, except in the 2 most anterior regions where it keeps its arrangement from stage to stage, even through the moult.

Item Type: Paper
Uncontrolled Keywords: cytoskeletal redistributions moultassociated changes phalloin phalloidin bombyx-mori binding proteins phallotoxins secretion silkgland transport fibroin
Subjects: bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > cytoskeletal proteins
organism description > animal > insect
CSHL Authors:
Communities: CSHL labs > Spector lab
Depositing User: Matt Covey
Date Deposited: 10 Dec 2015 22:12
Last Modified: 10 Dec 2015 22:12
URI: http://repository.cshl.edu/id/eprint/32130

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