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Influence of various stress effects on ethylene production in wheat seedlings



Influence of various stress effects on ethylene production in wheat seedlings



Acta Universitatis Szegediensis Acta Biologica 34(1-4): 35-44



Ethylene formation has been investigated under influence of water stress in various of wheat seedlings. The change in ethylene production in the function of water deficit is described by a maximums curve. The position of the maximum depends on the wheat variety. We have found that copper and cadmium ions promote ethylene production in the wheat seedlings investigated. The effect of copper ions depends on the pH. Ethylene production will decrease if the pH approaches 7. No correlation was observed between ethylene production and the pH in the presence of cadmium ions. In the presence of ions mentioned above an enhancement was obtained in the ACC formation. Ethylene production evoked by these ions may be inhibited by cobalt and zinc ions. Data presented in this paper show a significant difference in the ethylene production of infected [with downy mildew] and infection- protected seedling on the 9th days. Owing to serious damages in cells we found no ethylene production in the non protected seedlings on the 15th day.

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Accession: 007460868

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