Department of Horticulture, Michigan State University, 48823, East Lansing, Michigan, USA.
Planta. 1973 Sep;113(3):207-14. doi: 10.1007/BF00390508.
The effects of CaCl2, (2-chloroethyl) phosphonic acid (Ethephon) and ethylene on leaf abscission of debladed and intact bean plants (Phaseolus vulgaris L.) were studied. Ethephon (1000 μg/l) and ethylene (8 μl/l) induced abscission in debladed and intact plants in 24-72 h whereas IAA (10(-5)M), cycloheximide (10(-5)M) and CaCl2 (0.068M) delayed abscission in debladed plants. CaCl2 completely inhibited the abscission-enhancing effect of Ethephon in intact bean leaves. When CaCl2 and Ethephon were applied simultaneously to separate halves of the leaf blade, leaves with Ethephon applied closest to the pulvinus abscised rapidly; when CaCl2 was applied closest to the pulvinus, abscission was prevented. Calcium pre-treatment prior to ethylene (8 μl/l) treatment of debladed plants delayed abscission as compared to those treated with ethylene alone.
研究了氯化钙、(2-氯乙基)膦酸（乙烯利）和乙烯对去叶和完整豆科植物（菜豆）叶片脱落的影响。乙烯利（1000μg/l）和乙烯（8μl/l）在 24-72 小时内诱导去叶和完整植株的脱落，而 IAA（10^(-5)M）、环己酰亚胺（10^(-5)M）和氯化钙（0.068M）延迟了去叶植株的脱落。氯化钙完全抑制了乙烯利对完整豆叶脱落的增强作用。当氯化钙和乙烯利同时施加到叶片的两半时，靠近叶枕的叶片迅速脱落；当氯化钙施加到叶枕附近时，脱落被阻止。与单独用乙烯处理的去叶植株相比，在乙烯（8μl/l）处理前用氯化钙预处理会延迟脱落。
