| The role of the frontal ganglion in locust feeding and moulting related behaviours. | |
| | |
MedLine Citation:
|
PMID: 12177148 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
In the desert locust, Schistocerca gregaria, the frontal ganglion (FG) plays a key role in control of foregut movements, and constitutes a source of innervation to the foregut dilator muscles. In this work we studied the generation and characteristics of FG motor outputs in two distinct and fundamental behaviours: feeding and moulting. The FG motor pattern was found to be complex, and strongly dependent on the locust's physiological and behavioural state. Rhythmic activity of the foregut was dependent on the amount of food present in the crop; animals with food in their crop demonstrated higher FG burst frequency than those with empty crop. A very full gut inhibited the FG rhythm altogether. When no feeding-related foregut pattern was observed, the FG motor output was strongly correlated with the locust's ventilation pattern. This ventilation-related rhythm was dominant in pre-moulting locusts. During the moult, synchronization with the ventilation pattern can be transiently switched off, revealing the endogenous (feeding-related) FG pattern. This presumably happens during vigorous air swallowing, and could also be induced experimentally. Our findings suggest that the FG central pattern generator can be modulated to generate a variety of motor outputs under different physiological conditions and behavioural contexts. |
| | |
Authors:
|
Yael Zilberstein; Amir Ayali |
Related Documents
:
|
20130198 - The cerebellum harbors a circadian oscillator involved in food anticipation. 9523888 - Presence of cues from stressed conspecifics increases reactivity to aversive events in ... 10373098 - Food-entrained feeding and locomotor circadian rhythms in rats under different lighting... 9109638 - Activity-based anorexia in rats as failure to adapt to a feeding schedule. 22300598 - Improving the effectiveness of nutritional information policies: assessment of unconsci... 9534868 - A survey of vitamin a concentrations in the liver of food-producing animals. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: The Journal of experimental biology Volume: 205 ISSN: 0022-0949 ISO Abbreviation: J. Exp. Biol. Publication Date: 2002 Sep |
Date Detail:
|
Created Date: 2002-08-14 Completed Date: 2003-03-31 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0243705 Medline TA: J Exp Biol Country: England |
Other Details:
|
Languages: eng Pagination: 2833-41 Citation Subset: IM |
Affiliation:
|
Department of Zoology, Faculty of Life Sciences, Tel Aviv University, Israel. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animal Feed Animals Digestive System / innervation Feeding Behavior / physiology* Female Ganglia, Invertebrate / growth & development, physiology* Grasshoppers / physiology* Larva Male Molting / physiology* Motor Neurons / physiology Oscillometry Respiratory Mechanics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The locust frontal ganglion: a central pattern generator network controlling foregut rhythmic motor ...
Next Document: Exploring the sialome of the tick Ixodes scapularis.