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Muscular Waves Contribute to Gliding Rate in the Freshwater Gastropod Lymnaea Stagnalis

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Publisher Springer
Date 2010 Feb 17
PMID 20157713
Citations 3
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Abstract

This study revises the mechanisms of ciliary locomotion and demonstrates muscular contribution to locomotion rate in Lymnaea stagnalis. L. stagnalis sticks to the substratum by the foot sole and moves smoothly with no visible contractions of the foot. A ciliated epithelium covering the sole is underlain by smooth muscle cells containing giant mitochondria. It is shown here that slow (basal) locomotor activity (measured as the flow rate of physiological saline over isolated sole) appears spontaneously or is induced by 10(-8)-10(-7) M 5-HT. 5-HT (10(-7)-10(-4) M) facilitates locomotor activity dose-dependently, and KCN (an inhibitor of mitochondrial respiration) decreases these effects to the basal level. 5-HT and KCN have no effect on the frequency of ciliary beat (stroboscopic measurements), and blockers of anaerobic glycolysis inhibit ciliary motility. Under anaerobic conditions locomotion of a snail is slow and insensitive to 5-HT in contrast to that in aerobic environments. It is concluded that glycolysis supplies energy to ciliated cells and respiration to sole muscle cells; 5-HT stimulates ciliary beating in an all-or-none fashion and muscular waves in a dose-dependent manner; cilia provide slow (basal) gliding, and locomotory rate up to 80% above the basal level is determined by muscular waves.

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References
1.
BROSEMER R, VOGELL W, BUECHER T . [MORPHOLOGICAL AND ENZYMATIC PATTERNS IN THE DEVELOPMENT OF THE INDIRECT FLIGHT MUSCLE OF THE LOCUST MIGRATORIA]. Biochem Z. 1963; 338:854-910. View

2.
Rogers D . Fine structure of smooth muscle and neuromuscular junctions in the foot of Helix aspersa. Z Zellforsch Mikrosk Anat. 1969; 99(3):315-35. DOI: 10.1007/BF00337605. View

3.
Willows A, Pavlova G, Phillips N . [Effect of Tritonia neuropeptides and serotonin on ciliary activity]. Dokl Akad Nauk. 1998; 358(6):839-41. View

4.
Hanson J, LOWY J . Structure of smooth muscles. Nature. 1957; 180(4592):906-9. DOI: 10.1038/180906a0. View

5.
Juel C . Pre- and postsynaptic effects of dopamine antagonists on dopaminergic synaptic transmission in Helix pomatia. Comp Biochem Physiol C Comp Pharmacol Toxicol. 1983; 76(1):203-8. DOI: 10.1016/0742-8413(83)90064-6. View