TEMPERATURE-DEPENDENCE OF SYNAPTIC MODULATION BY A FMRFAMIDE-RELATED NEUROPEPTIDE IN CRAYFISH

Authors
FRIEDRICH RW QUIGLEY PA SRIVASTAVA M SKERRETT M MERCIER AJ
Citation
Rw. Friedrich et al., TEMPERATURE-DEPENDENCE OF SYNAPTIC MODULATION BY A FMRFAMIDE-RELATED NEUROPEPTIDE IN CRAYFISH, Neuroscience letters, 169(1-2), 1994, pp. 56-58
Citations number
19
Categorie Soggetti
Neurosciences
Journal title
Neuroscience letters → ACNP
ISSN journal
03043940
Volume
169
Issue
1-2
Year of publication
1994
Pages
56 - 58
Database
ISI
SICI code
0304-3940(1994)169:1-2<56:TOSMBA>2.0.ZU;2-U
Abstract
The present study examined the temperature dependence of synaptic tran smission and peptidergic modulation of chemical synapses on the phasic abdominal extensor muscles of crayfish. Decreasing the temperature fr om 25-degrees-C to 5-degrees-C in saline, decreased the EPSP amplitude by 88% and increased the EPSP half-decay time four-fold. The putative neurohormone DRNFLRFamide (DF2) increased EPSP amplitudes, but was mo re effective at 7-9-degrees-C than at 15-17-degrees-C. DF2 Might play a hormonal role in counteracting low transmitter release at low temper ature.