Abstract
GLYCERINATED Chaos-Proteus amoebae preserve their normal shape, but will contract after washing and introduction of physiological concentrations of ATP, Ca2+, and Mg2+ (ref. 1). We have recorded the motion of activated glycerinated amoebae (amoeboid models) in a manner such that endoplasmic motions, shape changes, and contractile sites are pictorially graphed by the model during its contraction. Our findings contradict the frontal-zone contraction hypothesis, but do not unequivocally support the ectoplasmic tube contraction theory.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Rinaldi, R., Opas, M., and Hrebenda, B., J. Protozool., 22, 286–292 (1975).
Rinaldi, R., and Jahn, T. L., J. Protozool., 10, 344–357 (1963).
Mast, S. O., J. Morph., 41, 347–425 (1926).
Allen, R. D., Expl Cell Res., 8, 17–31 (1961).
Allen, R. D., Acta protozool., 11, 57–81 (1972).
Mast, S. O., Protoplasma, 14, 321–330 (1931).
Rinaldi, R., Korohoda, W., and Wohlfarth-Bottermann, K., J. Cell Biol., 58, 285a (1973).
Kamiya, N., Primitive Motile Systems in Cell Biology (edit. by Allen, R., and Kamiya, N.), 757 (Academic, New York, 1964).
Comly, L., J. Cell Biol., 58, 230–237 (1973).
Pollard, T., Adelstein, R., and Korn, E., Acta Protozoologica, 11, 59–66 (1972).
Rinaldi, R., and Hrebenda, B., J. Cell Biol., 66, 193–198 (1975).
Huxley, H., Nature, 243, 445–449 (1973).
Rinaldi, R., and Baker, W., J. theor. Biol., 29, 463–474 (1969).
Jahn, T., and Bovee, E., Physiol. Rev., 49, 793–862 (1969).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
RINALDI, R., OPAS, M. Graphs of contracting glycerinated Amoeba proteus. Nature 260, 525–526 (1976). https://doi.org/10.1038/260525a0
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1038/260525a0
This article is cited by
-
Reactivation of a glycerinated model of Amoeba
Protoplasma (1981)
-
ATP und Ca2+ induzierte actomyosinartige Kontraktion glycerinisierter Makronuklei
Protoplasma (1980)
-
Ca++ controlled contraction-relaxation cycle in glycerinated amoeboid cells
Protoplasma (1976)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.