Action of selected heavy metal ions on the photosystem 2 activity of the cyanobacteriumSpirulina platensis
Authors:
- 1 March 1995
- journal article
- research article
- Published by Institute of Experimental Botany in Biologia plantarum
- Vol. 37 (1) , 79
Abstract
Addition of different concentrations of heavy metal ions (Hg2+, Cu2+, Ni2+ and Pb2+) inhibited the photosystem 2 catalyzed electron transport activity (H2O→p-benzo-quinone) of the cyanobacteriumSpirulina platensis. Hg2+ caused the inhibition in electron transport activity in very low concentrations compared to the other metal ions. Hg2+ at this low concentration specifically altered the spectral properties of phycocyanin of the phycobilisomes in the intact cells ofSpirulina, whereas other heavy metal ions were ineffective in this sense.Keywords
This publication has 14 references indexed in Scilit:
- Impairment of photosystem 2 activity at the level of secondary quinone electron acceptor in chloroplasts treated with cobalt, nickel and zinc ionsPhysiologia Plantarum, 1989
- Copper Toxicity Affects Photosystem II Electron Transport at the Secondary Quinone Acceptor, QBPlant Physiology, 1989
- Fluorescence and Other Characteristics of Blue-Green Algae (Cyanobacteria), Red Algae, and Cryptomonads1986
- Inhibition of photosynthesis by heavy metalsPhotosynthesis Research, 1985
- Effects of Lead Chloride on Chloroplast ReactionsEnvironmental Letters, 1974
- Effects of Cadmium Nitrate on Spectral Characteristics and Light Reactions of ChloroplastsEnvironmental Letters, 1974
- The Cupric Ion as an Inhibitor of Photosynthetic Electron Transport in Isolated ChloroplastsPlant Physiology, 1972
- Inhibition of Chloroplast Reactions with Phenylmercuric AcetatePlant Physiology, 1972
- Nature of Copper-protein Binding in Spinach Plastocyanin*The Journal of Biochemistry, 1964
- ABSORPTION OF LIGHT BY CHLOROPHYLL SOLUTIONSJournal of Biological Chemistry, 1941