Volume 9 Issue 1
Feb.  2014
Turn off MathJax
Article Contents
Liu Mei, Liu Qifang, Zhang Xiankong, Li Shanghao(S. H. Ley). STUDIES ON CHLOROPHYLL-PROTEIN COMPLEXES ISOLATED FROM N2-FIXING BLUE-GREEN ALGA ANABAENA SP. 7120 AND THEIR SPECTRAL CHARACTER[J]. ACTA HYDROBIOLOGICA SINICA, 1985, 9(1): 1-8.
Citation: Liu Mei, Liu Qifang, Zhang Xiankong, Li Shanghao(S. H. Ley). STUDIES ON CHLOROPHYLL-PROTEIN COMPLEXES ISOLATED FROM N2-FIXING BLUE-GREEN ALGA ANABAENA SP. 7120 AND THEIR SPECTRAL CHARACTER[J]. ACTA HYDROBIOLOGICA SINICA, 1985, 9(1): 1-8.

STUDIES ON CHLOROPHYLL-PROTEIN COMPLEXES ISOLATED FROM N2-FIXING BLUE-GREEN ALGA ANABAENA SP. 7120 AND THEIR SPECTRAL CHARACTER

  • Received Date: April 22, 1983
  • Published Date: January 24, 1985
  • Seven bands have been isolated from photo-membranes of N2-fixing blue-green alga Anabaena sp. 7120 using membrane solubilization and SDS-polyacrylamide gel electrophoresis methods.Five chlorophyll-protein complex zones with lowest eleetrophoretic mobility show the same characteristics of absorbance spectra and room temperature fluorescence spectra. They have a red absorbance maximum at 676 nm and a blue absorbance maximum at 438 nm. They exhibit a fluorescence emission maximum at 672—673 nm under room temperature; there are also three small peaks at 710, 732 and 740 nm respectively. These are characteristics of CPI chlorophyll. Therefore, we consider these chlorophyll-protein complex zones belong to photosystem I. Another chlorophyll-protein complex zone with intermediate mobility is termed complex II (CP Ⅱ), with a red absorbance maximum at 672 nm and a blue absorbance maximum at 436 nm. Compared with CPI, both of the peaks shifted to shorter wavelength. It has a fluorescence emission maximum at 675 nm, and has not the smaller peaks characterizing of CPI. These properties show that this zone is different from CPI zones, and it is a complex associated with reaction center of photosystem Ⅱ.The zone of fastest mobility is free pigment.The fluorescence excitation spectra of CPI and CPⅡ at room temperature have been determined too.

Catalog

    Article views (907) PDF downloads (426) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return