VIEW ARTICLE

Physiology and Biochemistry

Cytochromes in the Mycelium and Oospores of Phytophthora capsici. O. K. Ribeiro, Postgraduate Research Associate, Department of Plant Pathology, University of California, Riverside, California 92502; G. A. Zentmyer(2), and D. C. Erwin(3). (2)(3)Professors of Plant Pathology, respectively, Department of Plant Pathology, University of California, Riverside, California 92502. Phytopathology 66:172-174. Accepted for publication 28 August 1975. DOI: 10.1094/Phyto-66-172.

Absorption spectra of the cytochromes in the vegetative and sexual propagules of Phytophthora capsici were obtained using a single-beam recording spectrophotometer, with vertical optics and on line with a computer. Cytochromes a, b, and c were detected in vegetative mycelium, whereas in young oospores (12-day-old cultures) or mature oospores (32-day-old cultures), only cytochrome c was detected.