Photoreceptors in Primitive Chordates: Fine Structure, Hyperpolarizing Receptor Potentials, and Evolution

Two species of primitive chordates have hyperpolarizing photoreceptor potentials, as vertebrates do. In Salpa the photoreceptive membrane is composed of microvilli, whereas in Amaroucium it is modified from cilia. There appears to be no functional correlation between fine structure of photoreceptive...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 1971-06, Vol.172 (3987), p.1052-1054
Hauptverfasser:	Gorman, A. L. F., McReynolds, J. S., Barnes, S. N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Biological Evolution Cell membranes Chordata, Nonvertebrate - anatomy & histology Cilia Electric potential Eyes Fine structure Histology, Comparative Membrane Potentials Microscopy, Electron P branes Photoreceptor Cells - cytology Photoreceptor Cells - physiology Photoreceptors Receptors String theory Vertebrates
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