Tetrahymena Cell Culture

Abstract Tetrahymena , a free‐living unicellular eukaryote, is a ciliate considered to be the most highly developed protozoan, because it possesses specialized organelles which perform each of the cell functions. This pear‐shaped microorganism (30 × 50 μm) can be found in almost all freshwater environments, including even natural hot springs in which a thermotolerant strain can live.