The action of genetic material and its relation to enzyme biosynthesis has only in recent years received attention from an experimental standpoint. A variety of enzyme changes has been found to be associated with genetic alterations, including the formation of altered enzymes, the modifications in various quantitative aspects of enzyme formation, and the complete loss of ability to form specifi...

glomerella cingulata is the causal agent of anthracnose disease on citrus that attacks weakened trees. the sexual stage is rare in nature but can be produced in laboratory under certain conditions. sixty-seven single-spore isolates were selected from citrus in mazandaran province to be used in this study. isolates were cultured on ypss for investigating heterothallism and homothallism. to under...

13. KOCH, L. H. and McMEEKIN, T. L. A new direct nesslerization microkjeldahl method and a modification of the nessler-folin reagent for ammonia. Jour. Amer. Chem. Soc. 46: 2066-2068. 1924. 14. KVAMME, E. and HELLMAN, L. Isolation of pyruvic and alpha-ketoglutaric acids from blood and tissues in the presence of carbon-14 acetate. Anal. Chem. 26: 1995-1997. 1954. 15. OWENS, R. G. Metabolism of f...