The Journal of General Physiology
Avanti Polar Lipids
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents
This Article
Right arrow Full Text (PDF, 951K)
Right arrow Alert me when this article is cited
Right arrow Citation Map
Services
Right arrow Email this article
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new content in the JGP
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bader, C.
Right arrow Articles by Bertrand, D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bader, C.
Right arrow Articles by Bertrand, D.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

The Journal of General Physiology, Vol 67, 475-491, Copyright © 1976 by The Rockefeller University Press

ARTICLES

Role of intracellular calcium and sodium in light adaptation in the retina of the honey bee drone (Apis mellifera, L)

C Bader, F Baumann and D Bertrand

In the honey bee drone, the decrease in sensitivity to light of a retinula cell exposed to background illumination was found to be accurately reflected by the difference in amplitude between the initial transient depolarization and the lowest steady depolarization evoked by the background light. It is shown that both the decrease in sensitivity to light and the accompanying drop in potential from the transient to the plateau can be prevented by injecting EGTA intracellularly. A decrease in duration and amplitude of responses to short test flashes such as observed immediately after illumination was found to occur too when Ca or Na, but not K, Li, or Mg injected into dark-adapted retinula cells. Injection of EGTA into a retinula cell maintained a steady state of light adaptation, was found to cause an increase in amplitude and duration of the response to a short test flash, thus producing the effects of dark adaptation. It is suggested that, in the retina of the honey bee drone, an increase in intracellular calcium concentration plays a central role in light adaptation and that an increase in intracellular sodium concentration, resulting from the influx of sodium ions during the responses to light, could lead to this increase in intracellular free calcium.
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:


Home page
 J. Neurosci.Home page
M. del Pilar Gomez and E. Nasi
Calcium-Independent, cGMP-Mediated Light Adaptation in Invertebrate Ciliary Photoreceptors
J. Neurosci., February 23, 2005; 25(8): 2042 - 2049.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
J. Oberwinkler and D. G. Stavenga
Calcium Transients in the Rhabdomeres of Dark- and Light-Adapted Fly Photoreceptor Cells
J. Neurosci., March 1, 2000; 20(5): 1701 - 1709.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Cell Physiol.Home page
P. J. Bauer, H. Schauf, A. Schwarzer, and J. E. Brown
Direct evidence of Na+/Ca2+ exchange in squid rhabdomeric membranes
Am J Physiol Cell Physiol, March 1, 1999; 276(3): C558 - C565.
[Abstract] [Full Text] [PDF]

Home page
 ScienceHome page
D. Williams
Photoreceptor membrane shedding and assembly can be initiated locally within an insect retina
Science, November 26, 1982; 218(4575): 898 - 900.
[Abstract] [PDF]

Home page
 ScienceHome page
G. Rodan, L. Bourret, and L. Norton
DNA synthesis in cartilage cells is stimulated by oscillating electric fields
Science, February 10, 1978; 199(4329): 690 - 692.
[Abstract] [PDF]


  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents