A carbonic anhydrase inhibitor induces bicarbonate-reversible suppression of electron transfer in pea photosystem 2 membrane fragments
| Autor: | Vyacheslav V. Klimov, Alexandr V. Shitov, Göran Samuelsson, Sergey K. Zharmukhamedov, Tatiana Shutova, Suleyman I. Allakhverdiev |
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| Rok vydání: | 2011 |
| Předmět: |
Chlorophyll
Photosystem II medicine.drug_class Bicarbonate Biophysics Photosynthesis Electron Transport chemistry.chemical_compound Electron transfer Carbonic anhydrase medicine Radiology Nuclear Medicine and imaging Carbonic anhydrase inhibitor Carbonic Anhydrase Inhibitors Carbonic Anhydrases Radiation Radiological and Ultrasound Technology biology Chlorophyll A Peas Hydrogen-Ion Concentration Acetazolamide Bicarbonates Kinetics Membrane chemistry Biochemistry biology.protein medicine.drug |
| Zdroj: | Journal of Photochemistry and Photobiology B: Biology. 104:366-371 |
| ISSN: | 1011-1344 |
| DOI: | 10.1016/j.jphotobiol.2011.04.001 |
| Popis: | The effects of suppression of the carbonic anhydrase (CA) activity by a CA-inhibitor, acetazolamide (AA), on the photosynthetic activities of photosystem II (PS II) particles from higher plants were investigated. AA along with CA-activity inhibits the PS II photosynthetic electron transfer and the AA-induced suppression is totally reversed by the addition of bicarbonate (3-5 mM). Similar effect of recovery in the PS II photosynthetic activity was also revealed upon the addition of known artificial electron donors (potassium ferrocyanide and TMPD). Significance and possible functions of CA for the PS II donor side are discussed. |
| Databáze: | OpenAIRE |
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