Morphology of Animal Secretory Gland Cells

Helander, Herbert F.

doi:10.1007/978-3-642-92908-3_2

Cited by 5 publications

(1 citation statement)

References 53 publications

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“…There is no evidence for vesicle release at the tip of the haptocilia and n o evidence that the adhesive material could be produced elsewhere on the epidermis and then transferred secondarily to the haptociliary tips. Release of secretory material through a n intact plasma membrane is known as eccrine secretion and has been proposed as the mean by which, for example, a glycocalyx is released from microvilli (Helander, 1965). Although this proposal for secretion release has been discounted recently (Ito, 1974) the ability of haptocilia to accumulate a secretory material at a specific locus on the plasma membrane indicates that secretion through an intact plasma membrane is possible.…”

Section: Hap Tociliamentioning

confidence: 99%

Hesiolicium gen.n. (Turbellaria Acoela) and Observations on Its Ultrastructure

Crezée

Tyler

1976

Zoologica Scripta

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Crezée, M. (University of Florida Marine Laboratory, Gainesville, FL 32611, USA) and Tyler, S. Hesiolicium gen.n. (Turbellaria Acoela) and observations on its ultrastructure. Zool. Scr. 5 (5): 207–216, 1976. —Hesiolicium inops gen.n., sp.n. is a thin and elongate protandric hermaphrodite from the marine interstitial environment. The male pore, with no accessory organs, lies just posterior to the mouth, with no pharynx. The dorsal ovary, lateral testes, adhesive papillae and a caudal organ are other features. The posterior and midventral adhesive papillae are bundles of haptocilia up to 22 μm long. In a crook near their base these adhesive cilia have three microtubule doublets displaced from the rest of the axoneme, giving the crook region a figure‐eight cross section. The caudal organ is a complex of cilium‐bearing sensory cells, large gland cells and modified muscle and epidermal cells. The rootlets of epidermal cilia and the two axial units of the sperm are as described for other acoels. Principally because of the haptocilia, Hesiolicium is provisionally placed in the Paratomellidae.

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Section: Hap Tociliamentioning

confidence: 99%