Oxidative Phosphorylation in Germinating Lettuce Seeds
- 1 February 1963
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Experimental Botany
- Vol. 14 (1) , 95-100
- https://doi.org/10.1093/jxb/14.1.95
Abstract
The effect of thiourea and coumarin, in vivo and in vitro, on the phosphorylating activity of lettuce mitochondria was investigated, as well as the effect of coumarin on the P/O ratio. It was shown that both substances in vitro inhibit phosphorylation; while in vivo coumarin inhibits but thiourea under certain circumstances stimulates. Coumarin was also shown to decrease the P/O ratio and therefore may be considered as an uncoupler. The difficulties in considering these effects of the substances as a primary mechanism controlling germination are pointed out and discussed.This publication has 6 references indexed in Scilit:
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- The Oxidation of Reduced Diphosphopyridine Nucleotide by an Ascorbate System from Cucumber.Plant Physiology, 1954
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- Determination of Inorganic PhosphateAnalytical Chemistry, 1949