Click
here to close Hello! We notice that
you are using Internet Explorer, which is not supported by Echinobase
and may cause the site to display incorrectly. We suggest using a
current version of Chrome,
FireFox,
or Safari.
Biophys J
1985 Mar 01;473:395-410. doi: 10.1016/S0006-3495(85)83931-X.
Show Gene links
Show Anatomy links
Digitized precision measurements of the movements of sea urchin sperm flagella.
Rikmenspoel R
,
Isles CA
.
???displayArticle.abstract???
High speed cinemicrographs were made of sea urchin sperm at temperatures varying from 22 to 6 degrees C. Apparatus, combining a television camera and a video digitizer, was constructed to scan individual flagellar images and to digitize the flagellar waveforms. With appropriate smoothing and averaging procedures, the rough data were condensed by a microcomputer into the coordinates of 20 points along a flagellum, spaced 2 microns apart. The curvature of the flagellum at these points was also computed. The coordinates of the flagellar positions were obtained to an accuracy of approximately +/- 0.1 micron, flagellar curvature to an accuracy of approximately +/- 50 cm-1. At all temperatures the amplitude of the flagella was found to vary with time in a purely sinusoidal fashion to within +/- 2%. The local curvature of the flagella had basically a purely sinusoidal time course to within +/- 50 cm-1, but a varying amount of asymmetry was present in the distal and the proximal ends of the flagella. This asymmetry in the curvature was related to the radius of the circular path of the sperm. The flagellar waveforms can probably be summarized in simple algebraic functions.
Brokaw,
Computer simulation of flagellar movement. I. Demonstration of stable bend propagation and bend initiation by the sliding filament model.
1972, Pubmed
Brokaw,
Computer simulation of flagellar movement. I. Demonstration of stable bend propagation and bend initiation by the sliding filament model.
1972,
Pubmed
Brokaw,
Computer simulation of flagellar movement. III. Models incorporating cross-bridge kinetics.
1975,
Pubmed
Brokaw,
Effects of increased viscosity on the movements of some invertebrate spermatozoa.
1966,
Pubmed
Coakley,
Effects of pressure and temperature changes on the flagellar movement of crithidia oncopelti.
1974,
Pubmed
Cosson,
Modification of flagellar waveform and adenosine triphosphatase activity in reactivated sea-urchin sperm treated with N-ethylmaleimide.
1983,
Pubmed
,
Echinobase
Gibbons,
Transient flagellar waveforms during intermittent swimming in sea urchin sperm. I. Wave parameters.
1980,
Pubmed
,
Echinobase
Gibbons,
Lithium reversibly inhibits microtubule-based motility in sperm flagella.
1984,
Pubmed
,
Echinobase
Goldstein,
Starting transients in sea urchin sperm flagella.
1979,
Pubmed
,
Echinobase
HUXLEY,
Muscle structure and theories of contraction.
1957,
Pubmed
Hines,
Bend propagation in flagella. II. Incorporation of dynein cross-bridge kinetics into the equations of motion.
1979,
Pubmed
Hines,
Bend propagation in flagella. I. Derivation of equations of motion and their simulation.
1978,
Pubmed
Lubliner,
Model for bend propagation in flagella.
1971,
Pubmed
Okuno,
Inhibition of movement of trition-demembranated sea-urchin sperm flagella by Mg2+, ATP4-, ADP and P1.
1979,
Pubmed
,
Echinobase
Pringle,
The contractile mechanism of insect fibrillar muscle.
1967,
Pubmed
Rikmenspoel,
Elastic properties of the sea urchin sperm flagellum.
1966,
Pubmed
,
Echinobase
Rikmenspoel,
Movement of sea urchin sperm flagella.
1978,
Pubmed
,
Echinobase
Rikmenspoel,
Ciliary contractile model applied to sperm flagellar motion.
1982,
Pubmed
,
Echinobase
Rikmenspoel,
The contractile mechanism in cilia.
1973,
Pubmed
Rikmenspoel,
Contractile events in the cilia of Paramecium, Opalina, Mytilus, and Phragmatopoma.
1976,
Pubmed
Rikmenspoel,
Contractile mechanisms in flagella.
1971,
Pubmed
Rikmenspoel,
The equation of motion for sperm flagella.
1978,
Pubmed
,
Echinobase
Summers,
Adenosine triphosphate-induced sliding of tubules in trypsin-treated flagella of sea-urchin sperm.
1971,
Pubmed
,
Echinobase
Yano,
Sliding velocity between outer doublet microtubules of sea-urchin sperm axonemes.
1980,
Pubmed
,
Echinobase