Motor activity of paramecium

Citation
Nv. Kotov et al., Motor activity of paramecium, BIOFIZIKA, 45(3), 2000, pp. 514-519
Citations number
5
Categorie Soggetti
Biochemistry & Biophysics
Journal title
BIOFIZIKA
ISSN journal
00063029 → ACNP
Volume
45
Issue
3
Year of publication
2000
Pages
514 - 519
Database
ISI
SICI code
0006-3029(200005/06)45:3<514:MAOP>2.0.ZU;2-3
Abstract
A systemic study of the mechanisms of motor activity of paramecium was carr ied out. The movements of paramecium responding to various influences were photographed. The analysis of the data revealed the time dependences of the rate of movement, rate of rotation, and the radius and the pitch of the he lix trajectory. Mathematical models of the membrane and a unit that transfo rms the calcium signal to programs of regulating the effectors were constru cted. A system of equations for constructing the trajectory of movement was proposed, It is concluded that the biomolecular system that involves calmo dulin, calmodulin-dependent ionic channels, adenylate cyclase, guanylate cy clase, phosphodiesterases, Ca2+-calmodulin, cAMP, cGMP-dependent protein ki nases, and phosphoprotein phosphatases is capable of regulating motor react ions necessary for complex maneuvering of paramecium under various conditio ns.