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1	Author	Framboise Techy, Monique Dinant, Jacques Aghion	Requires 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

2	Author	S. S. Brody, N. F. Owens	Requires 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