乙烯对黑暗中生长的黄瓜子叶中叶绿素生物合成的刺激作用。
Stimulation by Ethylene of Chlorophyll Biosynthesis in Dark-grown Cucumber Cotyledons.
机构信息
Department of Botany, University of California, Davis, California 95616.
出版信息
Plant Physiol. 1972 Sep;50(3):400-3. doi: 10.1104/pp.50.3.400.
Abstract
Five-day-old etiolated cucumber (Cucumis sativus L. var. Alpha Green) cotyledons produced more chlorophyll over a 4-hour illumination period after a prolonged exposure (12 to 72 hours) in the dark to ethylene concentrations ranging from 0.1 to 10 mul/l. Intact seedlings and excised cotyledons responded in the same way to this treatment. This effect does not involve a shortening of the lag phase of chlorophyll accumulation. Exposure of cotyledons to ethylene during the illumination period did not produce the same stimulatory effect on chlorophyll synthesis and, under certain conditions, chlorophyll synthesis was slightly inhibited by exposure to ethylene in the light.
摘要
5 天大的黄化黄瓜（Cucumis sativus L. var. Alpha Green）子叶在黑暗中长时间暴露（12 至 72 小时）后，在 4 小时的光照期间产生更多的叶绿素，其乙烯浓度范围为 0.1 至 10 μl/L。完整的幼苗和离体的子叶对此处理的反应相同。这种效应不涉及叶绿素积累的滞后期缩短。在光照期间将子叶暴露于乙烯中不会对叶绿素合成产生相同的刺激作用，并且在某些条件下，在光照下暴露于乙烯会轻微抑制叶绿素合成。
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