Abstract：
:In lepidoptera the spermatophore is deposited in a bursa copulatrix, which is lined by a cuticle through which solubilized components of the spermatophore must be absorbed by the underlying epithelium. This study follows the route taken by the phosphorus which, with calcium, forms a significant portion of the spermatophore of Calpodes ethlius in the form of homogeneous, amorphous concretions. Lead nitrate was used in the primary fixative to precipitate the phosphorus in order to follow the pathway taken by it through the cuticle and bursal epithelium. The epicuticle-free pits, which cover the bursal cuticle, are identified as the points of entry, and the epicuticular filaments as major pathways for transport of phosphorus and presumably soluble molecules. Lead phosphate deposits also occurred in the epithelium extracellularly between the apical microvilli, lateral membranes and basal folds, in calcium granules and in large compound structures which appear to be made up, at least in part, of calcium granules. The confinement of the phosphorus to extracellular compartments of the epithelium suggests that its function is to be found elsewhere.
journal_name
Tissue Celljournal_title
Tissue & cellauthors
Lai-Fook Jdoi
10.1016/0040-8166(91)90079-9subject
Has Abstractpub_date
1991-01-01 00:00:00pages
247-59issue
2eissn
0040-8166issn
1532-3072pii
0040-8166(91)90079-9journal_volume
23pub_type
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