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Zeitschrift für Naturforschung C

A Journal of Biosciences

Editor-in-Chief: Seibel, Jürgen

Editorial Board: Aigner , Achim / Boland, Wilhelm / Bornscheuer, Uwe / Hoffmann, Klaus

IMPACT FACTOR 2018: 1.000

CiteScore 2018: 0.99

SCImago Journal Rank (SJR) 2018: 0.246
Source Normalized Impact per Paper (SNIP) 2018: 0.437

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Volume 30, Issue 3-4


Absence of Plastocyanin in the Alga Bumilleriopsis and its Replacement by Cytochrome 553

Karl-Josef Kunert / Peter Böger
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/znc-1975-3-409


Different preparative procedures for isolation and purification of plastocyanin were successful to obtain the pure protein from Chlorella vulgaris, Scenedesm us acutus and Spinacia oleracea but not from B um illeriopsis filiform is. Lade of plastocyanin in this alga was further confirmed by the following in comparison with spinach chloroplast material:

a. Use of antibodies to block photosynthetic reactions generally dependent on plastocyanin;

b. epr spectral assessment;

c. treatment of chloroplasts with KCN and amphotericin B ;

d. light-induced changes at 553 nm ( = cytochrome f photooxidation).

The latter assays indicated that, in contrast to spinach, neither plastocyanin nor cytochrome f ( = Cyt 553) is present in sonified or pyridine treated Bumilleriopsis chloroplasts. Photooxidation of (added) cytochrome 553 takes place not only without plastocyanin but is counteracted by the copper protein

Keywords: Algae; Plastocyanin; Cytochrome f ( = cytochrome 553); Electron Donors; Photosystem I

About the article

Received: 1974-12-04

Published Online: 2014-06-02

Published in Print: 1975-04-01

Citation Information: Zeitschrift für Naturforschung C, Volume 30, Issue 3-4, Pages 190–200, ISSN (Online) 1865-7125, ISSN (Print) 0939-5075, DOI: https://doi.org/10.1515/znc-1975-3-409.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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