496 



APPENDIX 



Rhodopseudomonas spheroides 



400 



500 600 700 

 WAVELENGTH in m/x 



800 



900 



Fig. 2. Absorption spectra of Rhodopseudomonas spheroides, strain 2.4.1 and 

 blue-green mutant strain 2.4.1 /CCl/R-26. Solid curve, chromatophores of the 

 blue-green mutant. Dashed curve, chromatophores of the wild type. Dotted 

 curve, BChl in 7 acetone/2 methanol. The three preparations were adjusted to 

 the same BChl concentration. 



400 



500 600 700 

 WAVELENGTH in m/i 



800 



900 



Fig. 3. Absorption spectra of CJiroi)iati/nii , strain D. Chromatophores from 

 cells grown with CO2 (solid curve) or malate (dashed curve) as carbon source. 

 Dotted curve, BChl in 7 acetone/2 methanol. The three preparations were ad- 

 justed to the same BChl concentration. 



