Summary
Images with apparently gemmulofugal polarity in the EPL of the olfactory bulb are the result of sectioning, along misleading planes, gemmulopetal synapses containing postsynaptic vesicles. Unless one accepts a bidirectional conduction for chemical synapses, the internal granule cells lack actual gemmulofugal synapses and the neurotransmitter contained in their vesicles must act at non-synaptic membranes.
Similar content being viewed by others
References
E.Ramon-Moliner, Brain Res128, 1 (1977).
E. Ramon-Moliner, Brain Res.105, 551 (1976).
S. W. Kufler and C. Edwards, J. Neurophysiol.21, 589 (1958).
W. C. de Groat, Brain Res.38, 429 (1972).
S. Nishi, S. Minota and A. G. Karkzmar, Neuropharmacology13, 215 (1974).
E. R. Pannese, R. Bianchi, B. Calligaris, R. Ventura and E. R. Weibel, Brain Res.46, 215 (1972).
E. R. Pannese, R. Ventura and R. Bianchi, J. comb. Neurol.160, 463 (1975).
E. Wong, S. Schousboe, K. Saito, J. Y. Wu and E. Roberts, Brain Res.68, 133 (1974).
B. J. McLaughlin, J. G. Wood, K. Saito, R. Barber, J. E. Vaughn, E. Roberts and J. W. Wu, Brain Res.76, 377 (1964).
W. L. Tafuri, Z. Naturforsch.19, 622 (1964).
G. Gabella-. Anat.111, 69 (1972).
D. D. Samaringhe, J. Anat.99, 815 (1965).
M. A. Verity, J. A. Bevan and R. J. Ostrom, Nature211, 537 (1966).
N. C. R. Merrillees, J. cell, Biol.37, 794 (1968).
G. L. Ruskell, J. Anat., Lond.103, 65 (1968).
N. Watari, Z. Zellforsch.85, 291 (1968).
J. A. B. Barstad, Experientia18, 579 (1962).
M. Randic and D. W. Straughan, J. Physiol., Lond.173, 130 (1964).
C. Yamamoto and N. Kawai, Exp. Neurol.19, 178 (1967).
B. Katz and B. Miledi, J. Physiol., Lond.170, 389 (1964).
D. R. Curtis and R. W. Ryall, Exp. Brain Res.2, 66 (1966).
T. W. Stone, J. Physiol., Lond.225, 485 (1972).
P. R. Lewis and C. C. D. Shute, J. Cell Sci.1, 381 (1966).
S. Mori, T. Maeda and N. Shimizu, Histochemie4, 65 (1964).
A. Calas, G. Alonso, E. Arnauld and J. D. Vincent, Nature, Lond.250, 242 (1974).
J. C. Richards, H. P. Lorez and J. P. Tranzer, Brain Res.57, 277 (1973).
A. Calas, M. J. Besson, C. Gaughy, G. Alonso, J. Gowinski and A. Cheramy, Brain Res.118, 1 (1976).
T. Höckelt, Z. Zellforsch.91, 1 (1968).
V. M. Tennyson, R. Heikkila, C. Mytilineou, L. Cote and G. Cohen, Brain Res.82, 341 (1974).
L. Descarries, A. Beaudet and K. C. Watkins, Brain Res.100, 563 (1975).
G. Rodriguez de Lores and E. D. P. de Robertis, J. Neurochem.9, 503, (1962).
Author information
Authors and Affiliations
Additional information
Supported by grant MA4183 of the Medical Research Council of Canada.
Rights and permissions
About this article
Cite this article
Ramon-Moliner, E. Non-synaptic chemical neurotransmission. Experientia 33, 1342–1344 (1977). https://doi.org/10.1007/BF01920171
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF01920171