Acta Biologica Hungarica
Volume/Issue:
Volume 59: Issue Issue Supplement-2
Possible involvement of nitric oxide in coordination of buccal rhythm and gut motility in Lymnaea stagnalis
Authors: Taya Dyakonova 1 and Varvara Dyakonova 1
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  • 1 Russian Academy of Sciences Institute for Developmental Biology Vavilov str. 26 119991 Moscow Russia
DOI:
https://doi.org/10.1556/abiol.59.2008.suppl.5
Page Count:
33–37
Publication Date:
01 Jun 2008
Online Publication Date:
03 Jun 2008
Article Category:
Research Article
Restricted access

NO-generating drugs (SNP, SNAP, NaNO 2 ) activated the standard buccal rhythm and simultaneously slowed down the endogenous rhythm of the NO-synthesizing neuron B2 which enhances gut motility. In the B2, these drugs caused giant hyperpolarizing waves strongly associated with the buccal cycles. Hyperpolarizing waves on the B2 could also be induced by prolonged stimulation of the B2. The inhibitor of NO-synthase L-NNA or the NO scavanger PTIO abolished giant hyperpolarizing waves, depolarised the B2 and activated fast bursting in the B2. The results suggest that NO may be involved in coordination of radula and foregut movements.

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Cover Acta Biologica Hungarica
Acta Biologica Hungarica
Print ISSN:
0236-5383
Online ISSN:
1588-256X
Keywords:
Buccal; CPG; NO-synthesizing neuron; mollusc

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