Ultrastructure of the branchial wall of a lower chordate: The ascidian  Ciona intestinalis | Zendy

Pestarino Mario | Zendy; FialaMedioni A. | Zendy; Ravera F. | Zendy

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Ultrastructure of the branchial wall of a lower chordate: The ascidian Ciona intestinalis

Author(s) -

Pestarino Mario,

FialaMedioni A.,

Ravera F.

Publication year - 1988

Publication title -

journal of morphology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.652

H-Index - 74

eISSN - 1097-4687

pISSN - 0362-2525

DOI - 10.1002/jmor.1051970303

Subject(s) - ciona intestinalis , biology , ultrastructure , apocrine , epithelium , chordate , anatomy , secretion , phagocytosis , microbiology and biotechnology , vertebrate , endocrinology , gene , biochemistry , genetics

Transmission electron micrographs show the branchial epithelium of the ascidian Ciona intestinalis to be composed of three kinds of cells: ciliated, parietal, and “dark.” Absorptive processes of phagocytosis appear in ciliated and parietal cells; moreover, apocrine‐like secretion is evident exclusively in the parietal cells. Finally, the occurrence of secretory cells in the branchial epithelium suggests a digestive role of the ascidian branchial sac.

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