Light does not induce an increase in cyclic-GMP content of squid or Limulus photoreceptors.

@article{Brown1992LightDN,
  title={Light does not induce an increase in cyclic-GMP content of squid or Limulus photoreceptors.},
  author={J. Edward Brown and Mitchell N. Faddis and Allan Combs},
  journal={Experimental eye research},
  year={1992},
  volume={54 3},
  pages={403-10}
}
Both slices of squid (Loligo) retinas and Limulus ventral photoreceptors, with or without prior stimulation by flashes of bright light, were rapidly frozen and analysed for cyclic-GMP content by radioimmunoassay. Measurement of the freezing process indicated that freezing occurred at about 100 msec after the light flash. No significant changes in cyclic-GMP content were induced by light in either tissue. These data do not confirm previous reports that cyclic-GMP content of invertebrate… CONTINUE READING