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.

Science 7 August 1981:
Vol. 213. no. 4508, pp. 668 - 670
DOI: 10.1126/science.7256268
Prev | Table of Contents | Next

Articles

Science, Vol 213, Issue 4508, 668-670
Copyright © 1981 by American Association for the Advancement of Science

articles

Bulk solute extrusion as a mechanism conferring solute uptake specificity by pinocytosis in Amoeba proteus

RD Prusch

A variety of positively charged solutes induce pinocytosis in Amoeba proteus, ranging from metabolically useful material to solutes that may prove harmful, such as Alcian blue. Alcian blue is taken up by pinocytosis and then a fraction of the accumulated dye is expelled in bulk form through "extrusion channels." This response is not elicited by other solutes taken up by pinocytosis in the amoeba, implying that if any selectivity is associated with this process, it is by specific solute extrusion mechanisms in the cytoplasm.




To Advertise     Find Products

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