ArticleThe Plant cell2014
The Cyanobacterial Photoactive Orange Carotenoid Protein Is an Excellent Singlet Oxygen Quencher.
Article in The Plant cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.
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Who cites it
51 citing papers in PubMed, 135 citations in OpenAlex.
- Singlet Oxygen in Plants: Mechanistic Insights into Production, Oxidative Damage, and Stress-Response Signaling.Antioxidants (Basel, Switzerland) · 2026Review
- The cutaneous microbiome as a dynamic photoprotective interface against solar radiation.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026Review
- Proteomics of long-term acclimation of the desert cyanobacteriumCurrent research in microbial sciences · 2026Article
- The structure of phycobilisome with a bicylindrical core from the cyanobacterium Synechococcus elongatus PCC 7942.Photosynthesis research · 2025Article
- Seaweed phenolic compounds: Relationship with antioxidant activity and application in different food products.Food chemistry: X · 2025Review
- Structure and quenching of a bundle-shaped phycobilisome.Science advances · 2025Article
- Elucidating light-induced changes in excitation energy transfer of photosystem I and II in whole cells of two model cyanobacteria.Photosynthesis research · 2025Article
- Genetic and biochemical diversity of terpene biosynthesis in cyanobacterial strains from tropical soda lakes.Frontiers in microbiology · 2025Article
- Structure and function of the light-protective orange carotenoid protein families.Current research in structural biology · 2024Review
- Nanodiamond Particles Reduce Oxidative Stress Induced by Methyl Viologen and High Light in the Green AlgaInternational journal of molecular sciences · 2023Article
- LHC-like Proteins: The Guardians of Photosynthesis.International journal of molecular sciences · 2023Review
- The squalene route to C30 carotenoid biosynthesis and the origins of carotenoid biosynthetic pathways.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Oligomerization processes limit photoactivation and recovery of the orange carotenoid protein.Biophysical journal · 2022Article
- Light Modulation for Bioactive Pigment Production inBioengineering (Basel, Switzerland) · 2022Article
- MarineProceedings of the National Academy of Sciences of the United States of America · 2021Article
- Singlet oxygen damages the function of Photosystem II in isolated thylakoids and in the green alga Chlorella sorokiniana.Photosynthesis research · 2021Article
- Heterologous expression of cyanobacterial Orange Carotenoid Protein (OCP2) as a soluble carrier of ketocarotenoids inAlgal research · 2021Article
- How Microbes Evolved to Tolerate Oxygen.Trends in microbiology · 2021Review
- Photomorphogenesis in the PicocyanobacteriumFrontiers in plant science · 2021Article
- Environmental Tuning of Homologs of the Orange Carotenoid Protein-Encoding Gene in the CyanobacteriumFrontiers in microbiology · 2021Article
Corrections and comments
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Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cyanobacteria have developed a photoprotective mechanism that decreases the energy arriving at the photosynthetic reaction centers under high-light conditions. The photoactive orange carotenoid protein (OCP) is essential in this mechanism as a light sensor and energy quencher. When OCP is photoactivated by strong blue-green light, it is able to dissipate excess energy as heat by interacting with phycobilisomes. As a consequence, charge separation and recombination leading to the formation of singlet oxygen diminishes. Here, we demonstrate that OCP has another essential role. We observed that OCP also protects Synechocystis cells from strong orange-red light, a condition in which OCP is not photoactivated. We first showed that this photoprotection is related to a decrease of singlet oxygen concentration due to OCP action. Then, we demonstrated that, in vitro, OCP is a very good singlet oxygen quencher. By contrast, another carotenoid protein having a high similarity with the N-terminal domain of OCP is not more efficient as a singlet oxygen quencher than a protein without carotenoid. Although OCP is a soluble protein, it is able to quench the singlet oxygen generated in the thylakoid membranes. Thus, OCP has dual and complementary photoprotective functions as an energy quencher and a singlet oxygen quencher.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.