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Effect of Temperature on the Respiration and Cytochromes of an Extreme Thermophile

^a Department of Botany and Microbiology, Montana State University, Bozeman, Montana 59715

ABSTRACT

The rate of oxygen uptake in an extreme thermophile at 70 C was three times greater than at 50 C. Cytochromes a, b, and c were present in cells grown at 50, 60, and 70 C. The content of these electron transport system elements remained relatively constant as the growth temperature was raised.

¹ Present address: Department of Microbiology and Biochemistry, Idaho State University, Pocatello, Idaho 83201.