Document Detail


Nonlinear oscillations in marine hydroids.
MedLine Citation:
PMID:  12777119     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Irregular oscillations in a colony of marine hydroids Podocoryne carnea were investigated. Quantitative characteristics were obtained as a result of long term (10-12 h) monitoring of oscillations at arbitrary sites. The sliding window spectra as well as the pulse-to-pulse dynamics argue the transient chaotic behavior of hydroid colony. The significant change of amplitudes and frequencies in intact colony oscillations after feeding and long sustained oscillations of stolons separated from colony suggest that the irregular activity could be determined by the network of pacemakers residing in stolon wall cells. These are influenced mechanically by the amount of digesting food and/or by chemical action of nutrients inside the stolon lumen. The possible correlation of these oscillations which can evoke Ca(2+) waves in stolon wall cells is discussed.
Authors:
Mindaugas S Venslauskas; Sarunas Asmantas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chaos (Woodbury, N.Y.)     Volume:  13     ISSN:  1054-1500     ISO Abbreviation:  Chaos     Publication Date:  2003 Jun 
Date Detail:
Created Date:  2003-06-02     Completed Date:  2003-08-05     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  100971574     Medline TA:  Chaos     Country:  United States    
Other Details:
Languages:  eng     Pagination:  552-7     Citation Subset:  IM    
Copyright Information:
(c) 2003 American Institute of Physics.
Affiliation:
Biophysical Research Group, Vytautas Magnus University (VMU), Donelaicio 58, Kaunas 3000, Lithuania. mive@gmf.vdu.il
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Communication / physiology*
Cell Differentiation
Cell Movement / physiology*
Digestion / physiology
Digestive System Physiological Phenomena
Feeding Behavior / physiology*
Hydrozoa / cytology,  physiology*
Microscopy, Video / methods
Models, Biological
Nonlinear Dynamics*
Oscillometry / methods*
Periodicity
Seawater
Signal Processing, Computer-Assisted

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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