The purpose of this study is to determine the presence or absence of a typical Krebs cycle metabolism in the primary mycelia of an aquatic streptomycete.

In this study organisms that can be subcultured from lake water, using a prescribed procedure, limit, to an extent, the population, or portions of the population, that can be monitored. In essence, what is taking place is that a set of conditions is set forth and a study is made of the bacteria that will grow under these prescribed conditions.

It is the purpose of this investigation to determine the variation of glyoxalase activity in liver of normal mice and in the liver of mice bearing a lymphosarcoma and to compare the glyoxalase activity of the lymphosarcoma with values previously reported in the literature for other tumor types. Further, if there is indeed a variation in liver glyoxalase activity between normal and tumor-bearing mice, it will be compared to the variation in the activity of two other enzymes present in liver tissue in relatively high concentration.

This thesis was written to study photoreactivation in different physiological conditions of the vegetative cell as well as the photoreactivation of the two morphological states of the Azotobacter cell: the vegetative cell and the cyst.