Photosystem II Photoinactivation, Repair, and Protection in Marine Centric Diatoms
نویسندگان
چکیده
منابع مشابه
Photosystem II photoinactivation, repair, and protection in marine centric diatoms.
Diatoms are important contributors to aquatic primary production, and can dominate phytoplankton communities under variable light regimes. We grew two marine diatoms, the small Thalassiosira pseudonana and the large Coscinodiscus radiatus, across a range of temperatures and treated them with a light challenge to understand their exploitation of variable light environments. In the smaller T. pse...
متن کاملPhotosystem II Photoinactivation, Repair, and Protection in Marine Centric Diatoms1[OA]
Biology, Mount Allison University, Sackville, New Brunswick, Canada E4L 1G7 (H.W., D.A.C.); College of Biological Engineering, Hubei University of Technology, Wuhan, Hubei 430068, China (H.W.); Institut des sciences de la mer de Rimouski, Université du Québec, Rimouski, Quebec, Canada G5L 3A1 (S.R.); and Botany, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4 (M.A., ...
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The marine picocyanobacteria Synechococcus and Prochlorococcus numerically dominate open ocean phytoplankton. Although evolutionarily related they are ecologically distinct, with different strategies to harvest, manage and exploit light. We grew representative strains of Synechococcus and Prochlorococcus and tracked their susceptibility to photoinactivation of Photosystem II under a range of li...
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Marine diatoms are photosynthetic, and thrive in environments where light fluctuates. Like all oxygenic photosynthetic organisms diatoms face a light-dependent inactivation of the Photosystem II complexes that photooxidize water to generate biosynthetic reductant. To maintain photosynthesis this photoinactivation must be countered by slow and metabolically expensive protein turnover, which is l...
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We studied the effect of low light intensity on Photosystem II (PSII) of thylakoid membranes isolated form spinach. The application of low frequency single turnover flashes results in the decreased oxygen evolving activity of PSII. This effect was explained in the framework of a model, which assumes that saturating visible light flashes at low frequency can result in the degradation of the D1 p...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2012
ISSN: 1532-2548
DOI: 10.1104/pp.112.203067