Light and dark adaptation of crayfish visual cells depending on extracellular calcium concentration.
نویسندگان
چکیده
Lowering of extracellular Ca2+-concentration from 14 X 10(-3) M to ca. 10(-6) M (using 1 mM ethyleneglycol bis (beta-aminoethylether)-N,N'-tetraacetic acid (EGTA)) results in weaker light adaptation by a 2 s light exposure and faster dark adaptation (half time 45 +/- 1%) of crayfish visual cells.
منابع مشابه
Single and Multiple Visual Systems in Arthropods
Extraction of two visual pigments from crayfish eyes prompted an electrophysiological examination of the role of visual pigments in the compound eyes of six arthropods. The intact animals were used; in crayfishes isolated eyestalks also. Thresholds were measured in terms of the absolute or relative numbers of photons per flash at various wavelengths needed to evoke a constant amplitude of elect...
متن کاملSingle and Multiple Visual Systems in Arthropods
Extraction of two visual pigments from crayfish eyes prompted an electrophysiological examination of the role of visual pigments in the compound eyes of six arthropods. The intact animals were used; in crayfishes isolated eyestalks also. Thresholds were measured in terms of the absolute or relative numbers of photons per flash at various wavelengths needed to evoke a constant amplitude of elect...
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عنوان ژورنال:
- Zeitschrift fur Naturforschung. Section C, Biosciences
دوره 31 5-6 شماره
صفحات -
تاریخ انتشار 1976