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A Quantitative Method for Measuring the Uptake of Carbon Particles by Tetrahymena pyriformis

F. E. G. Cox
Transactions of the American Microscopical Society
Vol. 86, No. 3 (Jul., 1967), pp. 261-267
Published by: Wiley on behalf of American Microscopical Society
DOI: 10.2307/3224591
Stable URL: http://www.jstor.org/stable/3224591
Page Count: 7
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A Quantitative Method for Measuring the Uptake of Carbon Particles by Tetrahymena pyriformis
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Abstract

The amount of suspended carbon present in a culture of Tetrahymena can be measured, with the aid of a colorimeter, before and after the ciliates have fed, and this difference can be regarded as an index of ciliary activity. This can be varied by changing the culture conditions. When transferred from a proteose-peptone medium to distilled water containing carbon 106, T. pyriformis can remove the carbon from 6-10 ml medium per hour.

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