ArticlePhotosynthesis research2005
Specific loss of the extrinsic 18 KDa protein from photosystem II upon heating to 47 degrees C causes inactivation of oxygen evolution likely due to Ca release from the Mn-complex.
Article in Photosynthesis research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- The Functions of Chloroplastic Ascorbate in Vascular Plants and Algae.International journal of molecular sciences · 2023Review
- Light-driven formation of manganese oxide by today's photosystem II supports evolutionarily ancient manganese-oxidizing photosynthesis.Nature communications · 2020Article
- Ascorbic Acid Alleviates Damage from Heat Stress in the Photosystem II of Tall Fescue in Both the Photochemical and Thermal Phases.Frontiers in plant science · 2017Article
- Production of Reactive Oxygen Species by Photosystem II as a Response to Light and Temperature Stress.Frontiers in plant science · 2016Review
- Article
- Role of L-ascorbate in alleviating abiotic stresses in crop plants.Botanical studies · 2014Review
- Alleviation of heat damage to photosystem II by nitric oxide in tall fescue.Photosynthesis research · 2013Article
- Role of chloride ion in hydroxyl radical production in photosystem II under heat stress: electron paramagnetic resonance spin-trapping study.Journal of bioenergetics and biomembranes · 2012Article
- Dynamic properties of photosystem II membranes at physiological temperatures characterized by elastic incoherent neutron scattering. Increased flexibility associated with the inactivation of the oxygen evolving complex.Photosynthesis research · 2012Article
- The physiological role of ascorbate as photosystem II electron donor: protection against photoinactivation in heat-stressed leaves.Plant physiology · 2011Article
- Fluoride inhibition of photosystem II and the effect of removal of the PsbQ subunit.Photosynthesis research · 2009Article
- A simple colorimetric determination of the manganese content in photosynthetic membranes.Photosynthesis research · 2009Article
- Experimental evidence for ascorbate-dependent electron transport in leaves with inactive oxygen-evolving complexes.Plant physiology · 2009Article
- Heat-induced changes in the EPR signal of tyrosine D (Y(D)OX) a possible role of Cytochrome b559.Journal of bioenergetics and biomembranes · 2008Article
- The PSII calcium site revisited.Photosynthesis research · 2007Review
- The extrinsic proteins of Photosystem II.Photosynthesis research · 2007Review
- Chlorophyll thermofluorescence and thermoluminescence as complementary tools for the study of temperature stress in plants.Photosynthesis researchReview
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Exposure of Photosystem II (PS II) membrane particles from spinach to a temperature of 47 degrees C caused the rapid release of the 18 kDa protein in parallel to inactivation of oxygen evolution. Previously, it has been suggested that the first heat-jump response involves rapid Ca release from the Mn complex of O2-evolution, followed by the slower release of (2 + 2) MnII ions [Pospisil P et al. (2003) Biophys J 84: 1370-1386]. Here, the predicted biphasic MnII release to the bulk was verified by atomic absorption spectroscopy (AAS). Analysis of laser flash-induced delayed fluorescence transients suggests that the loss of the essential Ca ion from the Mn4Ca complex in the dark is due to the loss of the 18 kDa protein. The S2-state multiline EPR signal of the Mn complex was still generated in heat-treated PS II presumably lacking Ca, but retaining four Mn ions.
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