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- Title
The Metabolism of Rumex Virus Tumors. Terminal Respiratory enzymes.
- Authors
Gentile, Arthur C.; Naylor, Aubrey W.
- Abstract
A survey was made of the terminal respiratory enzymes in Rumex virus tumor tissue grown in culture. The oxygen uptake of slices of Rumex virus tumors was inhibited about 45 per cent by 0.001 M cyanide. This inhibition suggested the presence of a heavy-metal mediated oxidase system. Cytochrome oxidase. DPNH-linked cytochrome c reductase, and succinic dehydrogenase were found to be present. Catalase and peroxidase activities were also demonstrated. The copper-protein oxidases - polyphenol oxidase, laccase, and ascorbic acid oxidase, were absent in this tissue. Although a residual cyanide respiration suggested the presence of a flavin oxidase, attempts to show glycolic acid dehydrogcnase activity were unsuccessful.
- Subjects
PLANT metabolism; METABOLISM; PLANT physiology; CYTOCHROMES; METALLOENZYMES; DEHYDROGENASES
- Publication
Physiologia Plantarum, 1955, Vol 8, Issue 3, p682
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1111/j.1399-3054.1955.tb07761.x