ISSN:
1432-072X
Keywords:
Photosynthesis
;
Membrane structure
;
Electron microscopy
;
Ectothiorhodospira
;
Serial thin sectioning
;
Three dimensional reconstruction
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The three dimensional organization of the complete photosynthetic apparatus of the extremely halophilic, bacteriochlorophyll b containing Ectothiorhodospira halochloris has been elaborated by several techniques of electron microscopy. Essentially all thylakoidal sacs are disc shaped and connected to the cytoplasmic membrane by small membraneous “bridges”. In sum, the lumina of all thylakoids (intrathylakoidal space) form one common periplasmic space. Thin sections confirm a paracrystalline arrangement of the photosynthetic complexes in situ. The ontogenic development of the photosynthetic apparatus is discussed based on a structural model derived from serial thin sections.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00403228