Mauring K, Novoderezhkin V, Taisova A, Fetisova Z
Institute of Physics, Tartu, Estonia.
FEBS Lett. 1999 Aug 6;456(2):239-42. doi: 10.1016/s0014-5793(99)00953-9.
We have demonstrated temperature-dependence of the steady-state fluorescence lineshape of the bacteriochlorophyll (BChl) c band measured for intact cells of the green bacterium Chloroflexus aurantiacus over the 1.8-293 K range. The measured temperature-dependence has been shown to be in good agreement with the theoretical one, calculated for our original model of pigment organization in the chlorosomal oligomeric antenna of green photosynthetic bacteria based on spectral hole-burning studies (Fetisova, Z.G. et al. (1996) Biophys. J. 71, 995-1010). This model implies that the BChl c antenna unit is a tubular aggregate of six exciton-coupled linear pigment chains having the exciton level structure with strongly allowed higher levels.
我们已经证明了在1.8 - 293K范围内，对橙色绿屈挠菌完整细胞测量的细菌叶绿素（BChl）c带稳态荧光线形的温度依赖性。测量得到的温度依赖性已被证明与基于光谱烧孔研究为我们关于绿色光合细菌叶绿体寡聚天线中色素组织的原始模型计算出的理论结果高度吻合（费季索娃，Z.G.等人（1996年）《生物物理学杂志》71卷，995 - 1010页）。该模型表明，BChl c天线单元是由六条激子耦合的线性色素链组成的管状聚集体，具有激子能级结构，其中较高能级被强烈允许。
