A State of PSI and PSII Photochemistry of Sunflower Yellow-Green Plastome Mutant
- 1 Department of Genetics, Southern Federal University, Rostov-on-Don, Russia
- 2 Institute of Biophysics and Cell Engineering, National Academy of Sciences of Belarus, Minsk, Belarus
- 3 Zhdanov Don Experiment Station, All Russia Research Institute of Oil Crops, pos. Oporny, Rostov region, Russia
Abstract
Chlorophyll deficient mutants are appropriate model objects for a large number of investigations in the field of photosynthesis. In this study, we identified a state of Photosystem I (PSI) and Photosystem II (PSII) photochemistry and light responses of the sunflower yellow-green mutant line - en:chlorina-7, wherein mutations in chloroplast genes have been previously localized. The conducted research revealed low content of photo-oxidizable PSI and an impaired quantum yield of PSII photochemistry in the en:chlorina-7 line as compared with a wild type. Disturbances of PSI and PSII in yellow-green plastome mutant line of sunflower (en:chlorina-7) are associated with mutations in psaA and psbB, respectively.
DOI: https://doi.org/10.3844/ojbsci.2016.193.198
Copyright: © 2016 Maksim S. Makarenko, Nikolay V. Kozel, Alexander V. Usatov, Oleg F. Gorbachenko and Natalia G. Averina. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Yellow-Green Mutants
- Sunflower Plastome Mutant
- PSI and PSII Reduction
- psaA
- psbB