Spectral quality and UV-B stress stimulate glycyrrhizin concentration of Glycyrrhiza uralensis in hydroponic and pot system
Spectral quality and UV-B stress stimulate glycyrrhizin concentration of Glycyrrhiza uralensis in hydroponic and pot system
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DOI：
10.1016/j.plaphy.2005.11.005
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发表时间：
2005-12-01
影响因子：
6.5
通讯作者：
Kozai, T
中科院分区：
文献类型：
--
作者：
Afreen, F;Zobayed, SMA;Kozai, T
显示具有抗肿瘤活性，在抑制HIV-1和SARS相关病毒复制方面具有高度活性，并显示出许多药理作用。本研究的主要目的是在受控环境中评估不同光谱质量（包括红色、蓝色、白色和UV-B辐射）对野黄芩苷生产的影响。植物在具有升高的CO2浓度的人造光下生长，并且将盆栽和水培植物分配给红光和蓝光处理，并且将在白色荧光灯下生长的植物用作对照。在单独的实验中，将盆栽植物暴露于紫外线（UV）-B辐射（波长：280-315 nm）。结果表明，高强度UV-B辐射处理后，叶片的净光合速率（NPR）立即显著下降（1. 13 W m（-2））。在低强度UV-B辐射（0.43W m（-2）15天）下，NPR也有所降低，但降低速度明显慢于高强度处理。在根组织中定量的甜菜碱的浓度是最高的，在红光下生长的植物在水培和盆栽系统和浓度线性增加，从1至3个月大的盆栽植物。低强度和高强度的UV-B辐射均使3月龄盆栽植株根组织中的甜菜碱含量增加，其值接近对照的X 1.5。结果还表明，3-6个月大的盆栽植物的胡萝卜素浓度类似于或甚至高于先前报道的3-4年大的田间生长植物的值，并证实在受控环境下在非常短的生产期内高浓度的胡萝卜素生产是可能的。(c)2005年，Elsevier SAS。All rights reserved.
shown to have anti-tumor activity, highly active in inhibiting replication of HIV-1 and SARS-associated virus and exhibits a number of pharmacological effects. The principle objective of the current study was to evaluate the effects of different spectral quality including red, blue, white and UV-B radiation on the production of glycyrrhizin, in a controlled environment. Plants were grown under artificial lights with elevated CO2 concentration and both the pot and hydroponic plants were assigned to red and blue light treatments and those grown under white fluorescent lamps were used as control. In a separate experiment, pot plants were exposed to ultraviolet (UV)-B radiation (wavelength: 280-315 nm). The net photosynthetic rates (NPR) of the leaves reduced significantly immediately after exposure to the high intensity UV-B radiation (3 days at 1. 13 W m(-2)). In case of the low intensity UV-B radiation (15 days at 0.43 W m(-2)), NPR was also reduced, but the rate of reduction was significantly slower than that of the high intensity treatment. The concentrations of glycyrrhizin quantified in the root tissues were highest in the plants grown under red light in both hydroponic and pot systems and the concentration increased linearly from 1- to 3-month-old pot plants. Both the low and high intensity of UV-B exposure increased the concentration of glycyrrhizin in the root tissues of 3-month-old pot plants, the values being nearly X1.5 those of the control. The results also indicate that the glycyrrhizin concentrations of 3-6 months old pot plants were similar or even higher than the previously reported values for 3-4 years old field-grown plants and confirm that high concentration of glycyrrhizin production is possible within a very short production period under controlled environments. (c) 2005 Elsevier SAS. All rights reserved.