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Effect of pH of medium upon the growth rate of Tetrahymena geleii T-P

✍ Scribed by Wingo, W. J. ;Anderson, N. L.

Publisher
John Wiley and Sons
Year
1951
Tongue
English
Weight
207 KB
Volume
116
Category
Article
ISSN
0022-104X

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✦ Synopsis

ONE FIQURE

A number of strains of T e t r a h y m e m geleii have been cultivated in media free from bacteria. The effect of pH of the medium upon the growth of T . geleii E has been studied by Elliott ( ' 3 3 ) . Loefer ('35, '38, '42) has studied the effect of p H upon growth of several other protozoan species and other investigators have studied this phenomenon with a variety of protozoa.

The writers wanted to find a means of slowing the growth rate of Tetrahymeiaa geleii inasmuch as the rates ordinarily obtained at temperatures of 27 to 30" are inconveniently rapid for many studies. It was thought that the pH of the medium might be controlled so a s to cause the organism to grow more slowly than it does near the middle of its pH range. EXPERIMENTAL 'This project was in part supported by a grant (INRTR 53-C) froin The American Cancer Society.

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