Isolation of Mitochondria from Soybean Leaves on Discontinuous Percoll Gradients
- 1 April 1985
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 77 (4) , 1010-1012
- https://doi.org/10.1104/pp.77.4.1010
Abstract
A technique to isolate mitochondria from chamber-grown soybeans (Glycine max cv Williams) was developed. The mitochondria were isolated by centrifugation on discontinuous Percoll gradients which yielded a sharp band of mitochondria contaminated by only 4% of the total chlorophyll in the gradient. Contamination by peroxisomes was also slight. The isolated mitochondria oxidized malate plus glutamate, NADH, and malate with respiratory control. They also showed cyanide-insensitive, alternative pathway activity which was inhibited by salicylhydroxamic acid.Keywords
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