细胞结构对浮游植物光学特性的影响

doi:10.11978/j.issn.1009-5470.2010.02.033

热带海洋学报 ›› 2010, Vol. 29 ›› Issue (2): 33-38.doi: 10.11978/j.issn.1009-5470.2010.02.033cstr: 32234.14.j.issn.1009-5470.2010.02.033

细胞结构对浮游植物光学特性的影响

周雯1, 曹文熙1, 李彩1, 王桂芬1, 孙兆华1, 赵俊1,2

1.中国科学院南海海洋研究所热带海洋环境动力学重点实验室, 广东广州 510301; 2. 中国科学院研究生院, 北京 100039

收稿日期:2009-05-06 修回日期:2009-11-10 出版日期:2010-03-23 发布日期:2010-03-23
作者简介:周雯(1982—), 女, 湖南省邵阳市人, 助理研究员, 主要从事海洋光学的研究。
基金资助:
中国科学院重要方向性项目(KZCX2-YW-215); 国家自然科学基金项目(40906022; 40906021; 40606011,U0933005)

Effects of algal cell structure on the optical properties of phytoplankton

ZHOU Wen1, CAO Wen-xi1, LI Cai1, WANG Gui-fen1, SUN Zhao-hua1, ZHAO Jun1,2

1. LED, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; 2. Graduate Univ. of Chinese Academy of Sciences, Beijing 10039, China

Received:2009-05-06 Revised:2009-11-10 Online:2010-03-23 Published:2010-03-23

摘要/Abstract

摘要：

藻细胞抽象为细胞质和叶绿体构成的两层球体结构, 结合Aden-Kerker散射理论, 分析了藻细胞各物理属性对其光学特性的影响, 同时也与均匀球体藻细胞的光学特性进行了对比分析。分析结果表明, 与均匀球体结构相比, 叶绿体为外裹层的细胞结构将显著增强其后向散射效率及后向散射比率, 而叶绿体为内核层的细胞结构因打包效应将削弱藻细胞的吸收效率; 当叶绿体为外裹层时, 细胞粒径大小、叶绿体相对体积、叶绿体复折射率的虚部都对藻细胞的吸收效率会产生显著影响; 同时, 细胞粒径大小和叶绿体复折射率实部是决定细胞后向散射效率和后向散射比率的两个重要指标。

关键词: 细胞结构, 两层球体, Aden-Kerker理论, 浮游植物, 光学特性

Abstract:

The algal cells were first simplified as two-layer structure consisting of cytoplasm and chloroplast, and based on Aden-Kerker theory, the influence of physical properties of algal cells on their optical properties was then discussed. The results were also compared with the optical properties of homogenous spherical algal cells. They showed that, compared to homogenous spherical cell structure, the cell structures with chloroplast as outer would enhance the backscattering efficiency factor and backscattering ratio, while the cell structure with chloroplast as core would reduce the absorption efficiency due to package efficiency; For the algal cells with chloroplast as outer, the variations of cell size, relative chloroplast volume and the imaginary part of refractive index of chloroplast would have important influence on absorption efficiency of algae; both cell size and the real part of refractive index of chloroplast were the two key factors for backscattering efficiency and backscattering ratio of algae.

Key words: cell structure, two-layer sphere, Aden-Kerker theory, phytoplankton, optical property

周雯,曹文熙,李彩,王桂芬,孙兆华,赵俊,. 细胞结构对浮游植物光学特性的影响[J]. 热带海洋学报, 2010, 29(2): 33-38.

ZHOU Wen,CAO Wen-xi,LI Cai,WANG Gui-fen,SUN Zhao-hua,ZHAO Jun,. Effects of algal cell structure on the optical properties of phytoplankton[J]. Journal of Tropical Oceanography, 2010, 29(2): 33-38.

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细胞结构对浮游植物光学特性的影响

Effects of algal cell structure on the optical properties of phytoplankton

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