LIGHT-QUALITY EFFECTS ON ARABIDOPSIS DEVELOPMENT - RED, BLUE AND FAR-RED REGULATION OF FLOWERING AND MORPHOLOGY
LIGHT-QUALITY EFFECTS ON ARABIDOPSIS DEVELOPMENT - RED, BLUE AND FAR-RED REGULATION OF FLOWERING AND MORPHOLOGY
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DOI：
10.1111/j.1399-3054.1992.tb01341.x
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发表时间：
1992-11-01
影响因子：
6.4
通讯作者：
ESKINS, K
中科院分区：
文献类型：
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作者：
ESKINS, K
拟南芥（Arabidopsis thaliana L.）Heynh、哥伦比亚小种植物在14小时光照/10小时黑暗光周期下在红色、蓝色、红色+远红色、蓝色+远红色和红色+蓝色+远红色光的各种光混合物中生长。每个单一光源和光混合物保持恒定的辐照度（50 μ mol m-2 s-1）和红色+蓝色+远红光的混合物保持恒定的红色/远红光的比例，但蓝色与红色+远红光的比例不同。取决于用于计算的方法，这些光混合物的远红吸收形式的光敏色素的分数（P（fr）/P（tot））的值是恒定的，或者随着混合物中蓝光的百分比的增加而略微降低。拟南芥在蓝光、蓝光+远红光和红光+远红光下开花早（20天），在红光下开花晚（55天）。在红光+蓝光+远红光的混合光中，每种光都建立了一个几乎恒定的P（fr）/P（tot），开花与蓝光的时间和辐照度直接相关。叶面积和叶柄长度也与蓝光辐照度水平相关。
Arabidopsis thaliana (L.) Heynh, race Columbia plants were grown in red, blue, red + far-red, blue + far-red and various light mixtures of red + blue + far-red light under 14 h light/10 h dark photoperiods. Each single light source and light mixture maintained a constant irradiance (50 mumol m-2 s-1) and the mixtures of red + blue + far-red maintained a constant ratio of red/far-red light, but varied in the ratio of blue to red + far-red light. Depending on the method used for calculation, values of the fraction of phytochrome in the far-red absorbing form (P(fr)/P(tot)) for these light mixtures were either constant or decreased slightly with increasing percentage of blue light in the mixtures. Arabidopsis flowered early (20 days) in blue, blue + far-red and red + far-red light and late (55 days) in red light. In mixtures of red + blue + far-red light, each of which established a nearly constant P(fr)/P(tot), flowering was in direct relation to time and irradiance level of blue light. Leaf area and petiole length were also correlated with blue light irradiance levels.