光谱对小球藻和等鞭金藻生长的影响  

Effect of Spectra on Growth of Chlorella and Isochrysis

作　　者：毛安君[1] 王晶[1] 林学政[2] 孟继武[1] 

机构地区：[1]中国海洋大学光学光电子实验室,山东青岛266100 [2]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《光谱学与光谱分析》2008年第5期991-994,共4页Spectroscopy and Spectral Analysis

基　　金：山东省攻关项目(2005GG1107001)资助

摘　　要：采用单色LED光源和荧光灯从效率和速率两个角度研究了光源光谱对海生小球藻和等鞭金藻8701生长的影响,结果表明,连续光谱能够促进较高的最大生长率,蓝光促进生长的效率较高,两者组合能够较好地兼顾效率和速率。为了定量描述光照中的光谱参量,引入光谱吸收系数,根据光源发射光谱和藻体吸收谱计算海藻对光源光谱的量子吸收效率,该系数与实验结果中相应的生长效率成正相关,能够初步以量化形式反映光谱与其生长效率的关系。Focusing on the speed and efficiency, the effects of different spectra on the growth of chloreUa vulgaris and isochrysis galbana Parke 8701 were investigated by using monochromatic LED （light-emitting diode） and fluorescent lamp as light sources. It was concluded that continuous spectra accelerate the top-growth-rate, blue light has the best efficiency, and the combination of them can obtain a good balance of speed and efficiency. For the purpose of measuring spectra as a parameter of irradiation quanti- tatively, spectra-absorbability-coefficient defined as the quanta-absorbability- efficiency of spectra for algae was calculated by means of absorption spectra of algae and emission spectra of light sources. Compared with the experimental results the coefficients of different light sources have a positive correlation to their efficiency for growth, so the coefficient can be used to elemen- tarily quantify the relation between the spectra and the efficiency for growth.

关 键 词：光谱 小球藻 等鞭金藻 光谱吸收系数 单色LED 

分 类 号：Q682[生物学—生物物理学]