Department of Biology, Barnes Laboratory, The University of Chicago, 5630 South Ingleside Avenue, Chicago, Illinois 60637.
Plant Physiol. 1979 Jul;64(1):25-30. doi: 10.1104/pp.64.1.25.
Photosynthetic and growth properties of Solanum dulcamara L. were studied under controlled environments. The 200 experimentally tested plants were clonal replicates of five field-collected individuals, three from fully exposed habitats and two from deeply shaded habitats. After 4 weeks of growth in one of eight environmental treatments, each plant was measured for leaf adaxial and abaxial conductance to water vapor, specific leaf weight, chlorophyll per square decimeter of leaf, photosynthetic unit size, light-saturated photosynthetic rate, total leaf area, and total leaf, stem, and root dry weights. Changes in light level influenced photosynthesis and growth of each plant more than changes in water availability or temperature. It is strongly suggested that the primary adaptive response of the tested individuals to changes in levels of light involves the regulation of leaf thickness.
在受控环境下研究了甜叶菊(Solanum dulcamara L.)的光合和生长特性。200 株实验测试的植物是从五个野外采集个体中克隆的重复个体,其中三个来自完全暴露的栖息地,两个来自深阴影栖息地。在八种环境处理中的一种中生长 4 周后,对每个植物的叶正面和背面的水蒸气传导性、比叶重、每平方分米叶片的叶绿素、光合单位大小、光饱和光合速率、总叶面积以及总叶、茎和根干重进行了测量。光照水平的变化比水分供应或温度变化对每种植物的光合作用和生长的影响更大。强烈建议,受测试个体对光照水平变化的主要适应反应涉及叶片厚度的调节。