ZfN: Search Results

1	Author	Alfons Radunz	Requires cookie*
	Title	Binding of Antibodies onto the Thylakoid Membrane IV. Phosphatides and Xanthophylls in the Outer Surface of the Thylakoid Membrane
	Abstract	Antisera to the phosphatides phosphatidyl inositol and phosphatidyl choline as w ell as to the xanthophylls violaxanthin and zeaxanthin were obtained by immunization of rabbits. The phosphatidyl choline antiserum did not give cross reactions with thylakoid membrane glycolipids, nor with phosphatidyl glycerol and phosphatidyl inositol. The antiserum to phosphatidyl inositol also did not react with the glycolipids and phosphatidyl choline. However, a cross reaction with phosphatidyl glycerol was observed. Exhaustion tests revealed, that the phosphatidyl inositol antiserum was fully neutralized with the homologous phosphatide, but not with phosphatidyl glycerol. Antibodies to the phosphatides phosphatidyl inositol and phosphatidyl choline react with
	Reference	Z. Naturforsch. 33c, 941 (1978); received October 2 1978
	Published	1978
	Keywords	Phosphatides, Xanthophylls, Chloroplasts, M em bran e Structure, Antibody
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	TEI-XML for	default:Reihe_C/33/ZNC-1978-33c-0941.pdf
	Identifier	ZNC-1978-33c-0941
	Volume	33

2	Author	Ursula Lehmann-Kirk, KlausP. Bader, G. Eorg, H. Schmid, Alfons Radunz	Requires cookie*
	Title	Inhibition of Photosynthetic Electron Transport in Tobacco Chloroplasts and Thylakoids of the Blue Green Alga Oscillatoria chalybea by an Antiserum to Synthetic Zeaxanthin
	Abstract	An antiserum to synthetic Z eaxanthin inhibits photosynthetic electron transport on the oxygen-evolving side of photosystem II in tobacco chloroplasts and thylakoids o f the filamentous blue-green alga Oscillatoria chalybea. The inhibition site lies for both species between the site o f electron donation of water or tetramethyl benzidine and that o f diphenyl carbazide or manganese II ions. Typical photosystem I reactions are not impaired by the antiserum. The effect of the antiserum concerning the inhibition site is practically identical to that o f the earlier described antiserum to violaxanthin. However, the degree o f inhibition seems to be generally somewhat lower with the antiserum to Zeaxanthin, than with that to violaxanthin which hints at a lesser accessibility of ze-axanthin, in the tylakoid membrane in comparison to violaxanthin. In the course of these investigations new evidence was obtained that the oxygen-evolving side of the electron transport scheme is differently organized in Oscillatoria chalybea when compared to tobacco chloroplasts. Thus, the silicomolybdate reduction with water as the electron donor is sen sitive to DCMU in these algae.
	Reference	Z. Naturforsch. 34c, 1218—1221 (1979); received August 2 1979
	Published	1979
	Keywords	Antibodies, Oxygen-Evolving Side, Xanthophylls, Chloroplasts, Blue-Green Algae
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	TEI-XML for	default:Reihe_C/34/ZNC-1979-34c-1218.pdf
	Identifier	ZNC-1979-34c-1218
	Volume	34