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Propylene-a competitor of ethylene action
1Department of Biology and Computer Center, The University of Akron, Akron, Ohio 44325.
Plant Physiology
|October 1, 1975
Summary
Propylene competes with ethylene, inhibiting epicotyl growth in pea plants. This suggests ethylene may act by loosely binding to specific sites.
Area of Science:
- Plant Physiology
- Biochemistry
Background:
- Ethylene is a plant hormone regulating growth and development.
- Understanding ethylene's mechanism of action is crucial for plant science.
Purpose of the Study:
- To investigate the interaction between propylene and ethylene in regulating plant growth.
- To provide further evidence for ethylene's mode of action at the molecular level.
Main Methods:
- Experiments were conducted on etiolated garden pea (Pisum sativum L. cv. Alaska) seedlings.
- The effect of propylene on ethylene-induced reduction in epicotyl length was measured.
Main Results:
- Propylene was found to compete with ethylene.
- This competition resulted in a reduced inhibition of epicotyl length growth.
Conclusions:
- Ethylene's inhibitory effect on epicotyl elongation is mediated by competition with propylene.
- These findings support the hypothesis that ethylene functions by loosely binding to a specific cellular site.