ArticlePhotosynthesis research2019
The endogenous redox rhythm is controlled by a central circadian oscillator in cyanobacterium Synechococcus elongatus PCC7942.
Article in Photosynthesis research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- Circadian temperature compensation is intrinsically linked with metabolism and redox signaling.Nature communications · 2026Article
- From photosynthetic electron flow to gene regulation: redox signal transduction in cyanobacteria.FEMS microbiology reviews · 2026Review
- Origins of Ultrasensitivity and Complex Signaling Dynamics of Cellular Hydrogen Peroxide and Peroxiredoxin.Antioxidants (Basel, Switzerland) · 2025Article
- Article
- Studying the Human Microbiota: Advances in Understanding the Fundamentals, Origin, and Evolution of Biological Timekeeping.International journal of molecular sciences · 2023Review
- NADPH production in dark stages is critical for cyanobacterial photocurrent generation: a study using mutants deficient in oxidative pentose phosphate pathway.Photosynthesis research · 2022Article
- Light exposure mediates circadian rhythms of rhizosphere microbial communities.The ISME journal · 2021Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
Abstract
The intracellular redox and the circadian clock in photosynthetic organisms are two major regulators globally affecting various biological functions. Both of the global control systems have evolved as systems to adapt to regularly or irregularly changing light environments. Here, we report that the two global regulators mutually interact in cyanobacterium Synechococcus elongatus PCC7942, a model photosynthetic organism whose clock molecular mechanism is well known. Electrochemical assay using a transmembrane electron mediator revealed that intracellular redox of S. elongatus PCC7942 cell exhibited circadian rhythms under constant light conditions. The redox rhythm disappeared when transcription/translation of clock genes is defunctionalized, indicating that the transcription/translation controlled by a core KaiABC oscillator generates the circadian redox rhythm. Importantly, the amplitude of the redox rhythm at a constant light condition was large enough to affect the KaiABC oscillator. The findings indicated that the intracellular redox state is actively controlled to change in a 24-h cycle under constant light conditions by the circadian clock system.
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Registered trials
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