BIOCHEMICAL PROPERTIES OF SCHIZOSACCHAROMYCES POMBE DEPENDING ON CULTURE CONDITIONS AND ON ACTION OF INHIBITORS .3. CELLULAR RESPIRATIONS

A study has been made of the respirations of Schizosaccharomyces pombe cells when the latter are morphologically modified by treatment with various growth inhibitors. A considerable drop in the respiration per unit cell is seen when the microorganism is grown in the presence of insufficient amounts of myo-inositol (hypovitaminosis), and an increase on the other hand in cells grown in the presence of superoptimal amounts of inositol (hypervitaminosis). The amount of inositol supplied during growth is thus shown to have a distinct effect on the respiration. The elongated cells formed by the action of certain inhibitors have, per unit cell, an analogous respiration to normal cells. On the other hand, cells consisting of swollen compartments with transverse walls (isomytilitol type) have a diminished respiration per compartment. © 1969.