ArticlePlant communications2025
Chloroplast ATP-dependent metalloprotease FtsH5/VAR1 confers cold-stress tolerance through singlet oxygen and salicylic acid signaling.
Article in Plant communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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Who cites it
8 citing papers in PubMed.
- EXECUTER-mediated singlet oxygen signaling in plants: Mechanisms, evolution, and functional diversification.Plant communications · 2026Review
- Singlet Oxygen in Plants: Mechanistic Insights into Production, Oxidative Damage, and Stress-Response Signaling.Antioxidants (Basel, Switzerland) · 2026Review
- Tomato Leaf Color Diversity as a Functional Trait: Molecular Mechanisms, Physiological Significance, and Environmental Responses.International journal of molecular sciences · 2026Review
- Chloroplasts and Plant Sustainability: Key Roles and Emerging Insights.International journal of molecular sciences · 2026Review
- A multiplant transcriptomic atlas reveals conserved and lineage-specific defense architectures in response toProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Multipartite mitochondrial genome evolution in Halophila seagrasses: repeat-driven structural plasticity and selection signatures of marine adaptation.BMC plant biology · 2026Article
- Living with temperature changes: Salicylic acid at the crossroads of plant immunity and temperature resilience.Science advances · 2025Review
- Molecular Networks Governing Plant Responses to Heat and Cold Stress.Plants (Basel, Switzerland) · 2025Review
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
Cold stress substantially affects plant growth and productivity. Chloroplasts are primary sites for the production of reactive oxygen species (ROS) and biosynthesis of the defense hormone salicylic acid (SA) under environmental stress conditions. However, the mechanisms by which plants integrate ROS and SA signaling to adapt to stress remain elusive. Here, we report that Arabidopsis FILAMENTOUS TEMPERATURE-SENSITIVE H5/YELLOW VARIEGATED1 (FtsH5/VAR1), a thylakoid-localized ATP-dependent zinc metalloprotease, is essential for plant cold-stress tolerance. The var1-1 mutant exhibits pronounced chlorosis and variegation, as well as retarded growth under cold stress conditions. We observed a strong correlation between elevated SA biosynthesis/signaling and the cold-sensitive phenotype of var1. Reducing SA accumulation, either by overexpressing the salicylate hydroxylase gene (NahG) or knocking out SA biosynthesis-related genes (ICS1, EDS1, or PAD4), partially suppressed the chlorosis phenotype of var1. Furthermore, we demonstrated that EXECUTOR1 (EX1)-mediated singlet oxygen (
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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 Socratic graph.