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1979 (1)
1976 (1)
1Author    Framboise Techy, Monique Dinant, Jacques AghionRequires cookie*
 Title    Interactions between Photosynthetic Pigments Bound to Lipid and Protein Particles. Spectroscopic Properties  
 Abstract    The spectroscopic (visible) properties of pigment-bearing lipid and protein particles extract­ ed from milk show that: 1) chlorophylls a and b bound to separate particles can form aggregates provided their relative concentration is high enough. Neither pheophytin a nor ^-carotene, in the same conditions, form observable aggregates. 2) Chlorophylls a and b can co-aggregate when they are bound to the same particles. Pheophytin a as well as /8-carotene seem to prevent the aggregation of chlorophyll a. p-carotene has no effect on the aggregation of chlorophyll b. 
  Reference    Z. Naturforsch. 34c, 582—587 (1979); received December 15 1978/April 9 1979 
  Published    1979 
  Keywords    Spectroscopy, Photosynthetic Pigments, Artificial Membranes 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-0582.pdf 
 Identifier    ZNC-1979-34c-0582 
 Volume    34 
2Author    S. S. Brody, N. F. OwensRequires cookie*
 Title    Photosynthetic Electron Carriers at a Heptane-Water Interface  
 Abstract    Surface properties of monomolecular films of chlorophyll (Chi), plastocyanin (Pc), cytochrome c (Cyt) and ferridoxin (Fd) were measured at a heptane-water interface. Mixed films of Chi and the other components were examined in darkness and in light. The area/molecule, A, for Fd (from Cl. pasteurianum) is much larger at a heptane-water than Fd (from spinach) at an air-water interface. This difference in A may be the source of the Fd or the extent of denaturation at the different interfaces. There appears to be a photoreaction between Chi and Fd in the presence of ascorbate. The A for Cyt is much larger at a heptane-water than at an air-water interface. In mixed films there is a strong interaction between Chi and reduced Cyt in the dark. No such interaction is ob­ served between Chi and oxidized Cyt. With mixed films of Chi and reduced Pc there is a significant, reversible, light induced change in A V. 
  Reference    (Z. Naturforsch. 31c, 569 [1976]; received May 13 1976) 
  Published    1976 
  Keywords    Monolayers, Artificial Membranes, Photosynthesis, Lipid-Water Interface, Photobiology 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0569.pdf 
 Identifier    ZNC-1976-31c-0569 
 Volume    31