LITERATURE CITED
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- Jones, Edith S. 1923. Influence of temperature on the spore germination of Ustilago zeae. Jour. Agric. Res. 24: 593–597.
- Leszczenko, P. 1926. On the influence of reaction of the medium on the germination of the spores of Verticillium albo-atrum R. & B. and Ustilago maydis Tul. Mem. Inst. nat. Polonais d'Econ. Rur. a Putawy 7(A): 402–435. (Abs. Rev. App. Myc. 6: 307. 1927.)
- Pearson, I. A., J. M. Hammer, K. E. Corrigan and H. S. Hayden. 1948. Studies on the behavior of fungi in the presence of radioactive isotopes. Jour. Bact. 56: 397–102.
- Pichler, F. and A. Wöber. 1922. Bestrahlungsversuche mit ultra-violettem Licht, Röntgenstrahlen und Radium zur Bekämpfung von Pflanzenkrankeiten. Centralbl. fur Bakt. Abt. 2, 57: 319–327.
- Piemeisel, F. J. 1917. Factors affecting the parasitism of Ustilago zeae. Phytopathology 7: 294–307.
- Platz, G. A. 1928. The relation of oxygen to the germination of the chlamydospores of Ustilago zeae (Beckm.) Ung. Iowa State Coll. Jour. Sci. 2: 137–143.
- Schmitt, G. G. 1940. Cultural and genetic studies on Ustilago zeae. Phytopathology 30: 381–390.
- Waggoner, P. E. and A. E. Dimond. 1952. Examination of the possibility of therapy of plant disease with ionizing radiation. Phytopathology 42: 599–602.
- Wheeler, H. E. 1952. The use of radiocarbon for tagging fungi. Phytopathology 42: 431–435.