磁场对银杏叶叶绿素紫外可见吸收光谱的影响

目的]探求磁场激励对银杏叶叶绿素紫外/可见吸收光谱的影响。方法]采用可控变量试验法,对提纯的银杏叶叶绿素的吸收光谱进行测量和综合分析。结果]磁场激励对叶绿体在中心离子谱带的影响表现为特征吸收峰的位置随磁场强度增大,有向短波方向移动的趋势;磁场对电荷转移谱带总体呈抑制趋势;磁场激励影响了中心色素分子P680和P700及电子传递体的生物学功能;磁场对叶绿素吸收光谱的影响与磁感应强度有关。发现了磁致发光现象。结论]磁场激励对叶绿素的紫外/可见吸收光谱有明显影响,且与磁场强度有关。叶绿素具有磁致发光现象。

Experimental Study on the Influence of Magnetic Field on Ultraviolet and Visible Light Absorbing Spectrum of Chlorophyll of the Leaf Gingkgo

Objective] The aim was to probe the influences of magnetic field on ultraviolet and visible light absorbing spectrums of the chlorophyll of gingko leaves. Method] The absorbing spectrum between 190 nm and 1100 nm was measured and analyzed synthetically by the method of single controllable variable experiment. Result] The influence of magnetic field on chloroplast at the central spectrum belt was that the position of characteristic absorbing peak increases along with the intensity of the magnetic field, and had the trend of moving to the short wave. The magnetic field restrain the charge transferring spectrum belt and influenced the biological function of central pigment molecules P680, P700 and electron transferring body. The influence of magnetic field on absorbing spectrums of the chlorophyll was related with the strength of magnetic field. The phenomenon of magnetism induced emission was founded. Conclusion] Magnetic field prompting influenced the ultraviolet and visible spectrum of chlorophyll obviously, and was related with the strength of magnetic field. Chlorophyll had the phenomenon of magnetism induced emission.