ArticleProceedings of the National Academy of Sciences of the United States of America2006
Cryptochrome-1-dependent execution of programmed cell death induced by singlet oxygen in Arabidopsis thaliana.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.
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61 citing papers in PubMed, 117 citations in OpenAlex.
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- Cryptochrome-mediated blue light regulates cell lignification via PbbHLH195 activation of the PbNSC in pear fruits.Molecular horticulture · 2025Article
- Investigating the mechanism of chloroplast singlet oxygen signaling in thePlant signaling & behavior · 2024Article
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- Cryptochromes: Photochemical and structural insight into magnetoreception.Protein science : a publication of the Protein Society · 2021Review
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- Cryptochromes and the Circadian Clock: The Story of a Very Complex Relationship in a Spinning World.Genes · 2021Review
- Functional analysis of a novelPlant signaling & behavior · 2021Article
- Response of Downy OakPlants (Basel, Switzerland) · 2020Article
- Singlet Oxygen in Plants: Generation, Detection, and Signaling Roles.International journal of molecular sciences · 2020Review
- Execution of programmed cell death by singlet oxygen generated inside the chloroplasts of Arabidopsis thaliana.Protoplasma · 2020Article
- Mechanisms of Cryptochrome-Mediated Photoresponses in Plants.Annual review of plant biology · 2020Article
- The RiceInternational journal of molecular sciences · 2020Article
- Oxygen and ROS in Photosynthesis.Plants (Basel, Switzerland) · 2020Review
- Fluctuating Light Interacts with Time of Day and Leaf Development Stage to Reprogram Gene Expression.Plant physiology · 2019Article
- Regulation of Gene Expression of Methionine Sulfoxide Reductases and Their New Putative Roles in Plants.International journal of molecular sciences · 2019Article
1 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 1 institution in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Programmed cell death (PCD) plays an important role during the life cycle of higher organisms. Although several regulatory mechanisms governing PCD are thought to be conserved in animals and plants, light-dependent cell death represents a form of PCD that is unique to plants. The light requirement of PCD has often been associated with the production of reactive oxygen species during photosynthesis. In support of this hypothesis, hydrogen peroxide and superoxide have been shown to be involved in triggering a PCD response. In the present work, we have used the conditional flu mutant of Arabidopsis to analyze the impact of another reactive oxygen species, singlet oxygen, on cell death. Unexpectedly, the light-dependent release of singlet oxygen alone is not sufficient to induce PCD of flu seedlings but has to act together with a second concurrent blue light reaction. This blue-light-specific trigger of PCD could not be attributed to a photosynthetic reaction or redox change within the chloroplast but to the activation of the blue light/UVA-specific photoreceptor cryptochrome. The singlet oxygen-mediated and cryptochrome-dependent cell death response differs in several ways from PCD triggered by hydrogen peroxide/superoxide.
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