JN AJP: Cell Physiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

J Neurophysiol (October 15, 2003). doi:10.1152/jn.00757.2003
This Article
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
91/2/728    most recent
00757.2003v2
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Web of Science (4)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Kawai, R.
Right arrow Articles by Sakakibara, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kawai, R.
Right arrow Articles by Sakakibara, M.
Submitted on August 6, 2003
Accepted on October 6, 2003

Involvement of the ryanodine receptor in morphologic modification of Hermissenda type B photoreceptor after in vitro conditioning

Ryo Kawai1, Tetsuro Horikoshi1, and Manabu Sakakibara1*

1 Biological Science and Technology, Tokai University, Numazu, Shizuoka, Japan

* To whom correspondence should be addressed. E-mail: manabu{at}tokai.ac.jp.

We examined whether Ca2+ -induced Ca2+ release through ryanodine receptor was involved in the conditioning specific morphological change at the axon terminal of the type B photoreceptor in the isolated circumesophageal ganglion of Hermissenda. Calcium chelation by BAPTA prevented the conformational change at the terminal after five paired presentations of light and vibration, which were shown previously to produce terminal branch contraction of the B photoreceptor. Dantrolene and micromolar concentrations of ryanodine, both a ryanodine receptor blocker, depressed both the increase of excitability due to in-vitro conditioning and the elevation of intracellular Ca2+ concentration in response to membrane depolarization. Though the ability to elevate the intracellular Ca2+ was depressed, synaptic transmission was preserved in the normal state from hair cells under dantrolene and ryanodine incubation. Blockers of ryanodine receptor also prevented contraction at the B photoreceptor axon terminal. These results suggest that the ryanodine receptor plays a crucial role in inducing the in-vitro conditioning specific changes both physiologically and morphologically, including `focusing' at the B photoreceptor axon terminal.




This article has been cited by other articles:


Home page
 J. Neurophysiol.Home page
J. E. Geiger and N. S. Magoski
Ca2+-Induced Ca2+ Release in Aplysia Bag Cell Neurons Requires Interaction Between Mitochondrial and Endoplasmic Reticulum Stores
J Neurophysiol, July 1, 2008; 100(1): 24 - 37.
[Abstract] [Full Text] [PDF]

Home page
 J. Exp. Biol.Home page
O. M. Woodward and A. O. D. Willows
Nervous control of ciliary beating by Cl-, Ca2+ and calmodulin in Tritonia diomedea
J. Exp. Biol., July 15, 2006; 209(14): 2765 - 2773.
[Abstract] [Full Text] [PDF]

Home page
 Biol. Bull.Home page
M. Sakakibara
Comparative Study of Visuo-Vestibular Conditioning in Lymnaea stagnalis
Biol. Bull., June 1, 2006; 210(3): 298 - 307.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
M. Sakakibara, T. Aritaka, A. Iizuka, H. Suzuki, T. Horikoshi, and K. Lukowiak
Electrophysiological Responses to Light of Neurons in the Eye and Statocyst of Lymnaea stagnalis
J Neurophysiol, January 1, 2005; 93(1): 493 - 507.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
Visit Other APS Journals Online
Copyright © 2003 by the The American Physiological Society.