The Follicle Cells of Styela Plicata (Ascidiacea, Tunicata): A Sem Study : Developmental Biology
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概要
- 論文の詳細を見る
The morphological aspect of the follicle cells of Styela plicata eggs is describe by means of scanning electron microscope investigations. The follicular layer is made of spaced, cylindrical box-like cells which are arranged hexagonally. They adhere to the egg through a complex network of membrane extensions making an overall thin layer on the vitelline coat. The walls of the follicle cells are plentifully provided with microvilli, filopodia and lamellipodia, which allow a connection among the cells. At their apical end lies a large vacuole containing a granule, Probably involved in secretion. At insemination the majority of spermatozoa is distributed on the apical membrane of the follicle cells. The membrane often breaks after sperm-egg impact and the granule is therefore displaced. By means of the present investigations it is once again suggested a role played by follicle cells in ascidian eggs at fertilization.
- 社団法人日本動物学会の論文
- 2000-11-01
著者
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Villa Luisa
Department Of Animal Biology University Of Palermo
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Patricolo Eleonora
Department of Animal Biology, University of Palermo
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Patricolo Eleonora
Department Of Animal Biology University Of Palermo