Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.
SNM Organization

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 19 October 1979:
Vol. 206. no. 4416, pp. 358 - 361
DOI: 10.1126/science.482945
Prev | Table of Contents | Next

Articles

Science, Vol 206, Issue 4416, 358-361
Copyright © 1979 by American Association for the Advancement of Science

articles

Hydrostatic pressure reversibly blocks membrane control of ciliary motility in Paramecium

T Otter and ED Salmon

A hydrostatic pressure of only 68 atmospheres prevented swimming Paramecium caudatum from "avoiding" or reversing direction; 170 atmospheres stopped or decreased forward velocity by more than 75 percent. A decompression of 40 atmospheres invoked a single reversal, even at ,80 atmospheres. In contrast, 170 atmospheres did not significantly affect swimming behavior of paramecium "models" that were reactivated in a solution containing adenosine triphosphate and magnesium ions after their membrane had been disrupted by Triton X-100.




ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)