Department of Plant Sciences, Texas A&M University, College Station, Texas 77843.
Plant Physiol. 1969 Mar;44(3):337-41. doi: 10.1104/pp.44.3.337.
Ethrel, a mixture of 2-chloroethanephosphonic acid and its ethyl ester, hastens abscission of leaves, debladed petioles, and flower buds of cotton plants (Gossypium hirsutum, L.). Both young and old leaves abscissed while still green. Application of Ethrel stimulated evolution of ethylene, and this response preceded abscission. Air concentrations of ethylene around enclosed, treated-plants were adequate to produce abscission in plants. Non-treated plants defoliated when enclosed with plants sprayed with Ethrel. The stimulation of abscission of explant petioles by Ethrel was reversed by naphthalene acetic acid. The stimulation of abscission by Ethrel was concluded to be mediated by ethylene.
乙烯利是 2-氯乙基膦酸及其乙酯的混合物，能加速棉花植株（棉属）叶片、叶柄和花蕾的脱落。仍为绿色的幼叶和老叶都能脱落。乙烯利的应用刺激了乙烯的产生，而这种反应先于脱落。封闭处理植物周围空气中的乙烯浓度足以使植物脱落。用乙烯利处理过的植物被封闭时，未处理的植物会落叶。萘乙酸可逆转乙烯利对离体叶柄脱落的刺激作用。乙烯利对脱落的刺激作用被认为是通过乙烯介导的。
