Abstract
The paper presents the results of the study of the effect of cadmium (CdSO4) ions on photosystem II (PSII) photochemical activity. The presence of Cd2+ ions in the medium was found to significantly inhibit the oxygen evolution in the thylakoid membranes, indicating a clear correlation between the concentration of Cd2+ ions and the inhibition of PSII photochemical activity. Additionally, the study identified that this inhibition is strongly dependent on the pH level of the medium. The inhibition of PSII photochemical activity occurred quickly at low cadmium concentrations (1.0-30 mM). The study also observed that the inhibition of O2 evolution by Cd2+ ions was time-dependent, with a rapid 20-40% inhibition of oxygen evolution occurring when adding Cd2+. The photochemical activity of PSII was inhibited slowly during long-term incubation. The findings imply that PSII contains at least one high-affinity cadmium binding site. Keywords: Cadmium, photosynthesis, photosystem II, oxygen evolution
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Transactions of the Institute of Molecular Biology & Biotechnologies
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
