高光强响应控制光下豌豆幼苗的叶和茎生长。
Control of Leaf and Stem Growth in Light-grown Pea Seedlings by Two High Irradiance Responses.
机构信息
Department of Biology, Hartwick College, Oneonta, New York 13820.
出版信息
Plant Physiol. 1979 May;63(5):833-6. doi: 10.1104/pp.63.5.833.
Abstract
The control exerted by light on leaf and stem growth in light-grown Alaska pea seedlings was studied during the main photoperiod. Two high irradiance responses were observed. The action spectrum for one had a single sharp peak at 600 nanometers. The action spectrum for the other showed a broad peak between 440 and 470 nanometers. These two light responses must be activated simultaneously for any inhibition of stem growth or promotion of leaf growth. Both action spectra may be explained in terms of the high irradiance response of phytochrome.
摘要
在主要光周期期间，研究了光对光生阿拉斯加豌豆幼苗叶片和茎生长的控制。观察到两种高光响应。一种的作用光谱在 600 纳米处有一个单一的尖锐峰值。另一种的作用光谱在 440 到 470 纳米之间显示出一个宽峰。这两种光反应必须同时被激活，才能抑制茎的生长或促进叶的生长。这两个作用光谱都可以用光敏色素的高光响应来解释。
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