STRUCTURE OF PHOTOSYNTHETIC BACTERIA 



99 



t: 



£: 



?^l^» . 



■*'■*- 



■=> . si T-;%^ ^^ 



/^> 



Fig 9 Part of a longitudinal section of Thiospirillum jenense grown at low 

 light intensity. As in Chromatiuni okenii (Fig. 8), the cytoplasm is almost filled 

 with membrane-bounded vesicles. The cell wall is surrounded by a thm slime 

 layer. Main fixation 2 hours, post stained with lead hydroxide. X 120,000. 



