PLANT PHYSIOLOGY , Vol 103, Issue 2 435-440, Copyright © 1993 by American Society of Plant Biologists
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METABOLISM AND ENZYMOLOGY |
Comparative Studies on Ferredoxin-NADP+ Oxidoreductase Isoenzymes Derived from Different Organs by Antibodies Specific for the Radish Root- and Leaf-Enzymes
S. Morigasaki, T. Jin and K. Wada
Department of Biology, Faculty of Science, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-11 Japan
Determination of the prosthetic group and titration of sulfhydryl group of
ferredoxin-NADP+ oxidoreductase (FNR) from roots of radish (Raphanus
sativus var acanthiformis cv Miyashige) confirmed its similarity to
leaf-FNR. Antisera directed against radish root-FNR and leaf-FNR
distinguished the enzyme forms from roots and leaves of radish as well as
other flowering plants. The FNR isoenzymes showed organ-specific
distributions. In horsetail (Equisetum arvense L.) and cultured liverwort
cells (Marchantia polymorpha), at least two FNR isoenzymes were
distinguished by the antisera. FNR from Chlorella vulgaris reacted only
with the anti-root-FNR antiserum. FNR from a cyanobacterium, Spirulina
spp., failed to react with either antiserum.