Abscission: The Role of Ethylene, Ethylene Analogues, Carbon Dioxide, and Oxygen

Ethylene was the most effective abscission accelerant examined, with decreasing activity shown by propene, carbon monoxide, acetylene, vinyl fluoride, 1-butene, and 1,3-butadiene. Carbon dioxide inhibited abscission, but its effect was overcome by ethylene. Oxygen was required for abscission as an e...

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Bibliographic Details
Published in:Plant physiology (Bethesda) 1968-08, Vol.43 (8), p.1255-1258
Main Authors: Abeles, F. B., H. E. Gahagan III
Format: Article
Language:English
Subjects:
Abscission
Auxins
Carbon dioxide
Fruits
Gases
Oxygen
Plants
Respiration
Ripening
Vapor phases
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Summary:Ethylene was the most effective abscission accelerant examined, with decreasing activity shown by propene, carbon monoxide, acetylene, vinyl fluoride, 1-butene, and 1,3-butadiene. Carbon dioxide inhibited abscission, but its effect was overcome by ethylene. Oxygen was required for abscission as an electron acceptor for respiration and not as a potentiator or activator of the ethylene attachment site. The molecular requirements for abscission were similar to those shown by other workers for other biological processes under the influence of ethylene.
ISSN:0032-0889
1532-2548
DOI:10.1104/pp.43.8.1255