Ultrastructural identification of synapses between mitral/tufted cell dendrites.
Brain Res
; 860(1-2): 170-3, 2000 Mar 31.
Article
em En
| MEDLINE
| ID: mdl-10727638
ABSTRACT
Asymmetrical, type 1 synapses between mitral and/or tufted (M/T) cell dendrites were observed in the glomerular layer (GL) and juxtaglomerular external plexiform layer (EPL) of salamander olfactory bulb sections. The dendrites had electron-lucent cytoplasm containing regularly-arrayed microtubules and spherical translucent vesicles. The vesicles were clustered against a thin pre-synaptic density that was aligned with a 17-20 nm-wide synaptic cleft and a thicker post-synaptic density. These dendrodendritic synapses could be a source of the delayed, prolonged excitation that originates from the GL/EPL. During spatiotemporal encoding of odor stimuli, they could amplify or synchronize M/T cell responses.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bulbo Olfatório
/
Sinapses
/
Dendritos
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article