Alternative Respiratory Pathway: ITS ROLE IN SEED RESPIRATION AND ITS INHIBITION BY PROPYL GALLATE 1

AUTOR(ES)

Siedow, James N.

RESUMO

Oxygen uptake during the first hours of imbibition in intact soybean and mung bean seeds showed a marked sensitivity to potassium cyanide but was unaffected by addition of either salicylhydroxamic acid or propyl gallate. However O2 uptake by finely ground seed particles was very sensitive to the addition of either compound. The results indicated that O2 uptake in intact, imbibing seeds was associated with a cyanide-sensitive process, most probably mitochondrial mediated respiration, and not the result of the cyanide-insensitive lipoxygenase activity which was readily detectable in ground seed particles.

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