Action Spectra of Chromatic Transients and the Emerson Effect in Marine Algae.

5Recently, Otsuji and Takagaki have reported the accumulation of these compounds in 6azauracil treated bacteria, Journal of Biochem. (Japan), 46, 791 (1959). 6 Strominger, J. L., J. Biol. Chem., 224, 509 (1957). 7 Gray, C. H., and E. L. Tatum, these PROCEEDINGS, 30, 404 (1944). 8 Resumption of the DNA synthesis may have a decisive role in making the unbalanced growth of the organisms irreversible. 9 The 60 minutes' incubation time with FU-a standard condition used in our experimentsmay represent the critical time up to which the above mechanism of action of the drug predominates. On prolonged incubations inhibitions of other phases of pyrimidine metabolism may become decisive.