[Component breakdown of the absorption and fluorescence spectra of green bacteria]

The total number, band widths, absorption and fluorescense peak positions of bacteriochlorophyll forms in green bacteria were identifyed using computer curve analysis, Stepanov's relation and low temperature derivative spectroscopy. The identified pigment forms are the following (the lower index--absorption peak position, the upper--fluorescence peak position) (see article). The energy of the O-O transitions in the row of native forms of bacteriochlorophyll enumerated above changes for a constant equal to 80 cm-1. It is believed that the bacteriochlorophyll aggregate in the reaction center complex of green bacteria consists of 7 molecules.