title: [Photophobic response in Stentor coeruleus--electrophysiologic investigations].
abstract: It is widely known that the phototransduction process in vertebrate photoreceptor cells are mediated by cGMP-gated ionic channels. The recent electrophysiological study showed that the cGMP-gated channels are also present in light sensitive protozoan ciliate Stentor coeruleus. These channels might play a key role in phototransduction process which leads to the photophobic behavior in the ciliate. The basic biophysical and pharmaceutical properties of cGMP-gated channels in Stentor indicate high similarity to those in vertebrate photoreceptor cells.
authors.affiliation: Zakład Biologii Komórki, Instytut Biologii Doświadczalnej im. M. Nenckiego PAN w Warszawie.
authors.forename: M
authors.initials: M
authors.lastname: Walerczyk
authors.forename: H
authors.initials: H
authors.lastname: Fabczak
authors.forename: S
authors.initials: S
authors.lastname: Fabczak
mesh_terms: D000818:Animals; D016798:Ciliophora / Q000502:physiology*; D006152:Cyclic GMP / Q000378:metabolism; D007473:Ion Channels / Q000378:metabolism; D010786:Photoreceptor Cells / Q000502:physiology*; D015398:Signal Transduction
chemical_list: D007473:Ion Channels; D006152:Cyclic GMP