Stress resilience in plants: the complex interplay between heat stress memory and resetting

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Summary Heat stress (HS) poses a major challenge to plants and agriculture, especially during climate change‐induced heatwaves. Plants have evolved mechanisms combat HS remember past stress. This memory involves lasting changes in specific responses, enabling better anticipate react future heat events. is multi‐layered cellular phenomenon that, addition epigenetic modifications, protein quality control, metabolic pathways broader physiological adjustments. An essential aspect of modulating timely resetting, which restores defense responses baseline levels optimizes resource allocation for growth. Balancing with resetting enables withstand while maintaining growth reproductive capacity. In this review, we discuss regulatory layers highlighting their critical balance enhancing resilience plant fitness. We primarily focus on the model Arabidopsis thaliana due limited research other species outline key areas study.

Language: Английский

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A histone methyltransferase, EARLY FLOWERING IN SHORT DAYS (EFS) is required for reproductive organs development via histone H3K36 methylation in the oil-seed type Brassica rapa (B. rapa var. trilocularis) plant

Horticulture Environment and Biotechnology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Language: Английский

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Exploring the Genotoxic Stress Response in Primed Orphan Legume Seeds Challenged with Heat Stress

Genes, Journal Year: 2025, Volume and Issue: 16(2), P. 235 - 235

Published: Feb. 19, 2025

The increased frequency of extreme weather events related to climate change, including the occurrence temperatures, severely affects crop yields, impairing global food security. Heat stress resulting from temperatures above 30 °C is associated with poor germination performance and stand establishment. combination climate-resilient genotypes tailored seed priming treatments might represent a reliable strategy overcome such drawbacks. This work explores potential hydropriming as tool mitigate heat-stress-mediated impact on in orphan legumes. For each tested species (Lathyrus sativus L., Pisum sativum var. arvense Trigonella foenum-graecum L.), two accessions were investigated. Germination tests performed at 25 °C, 35 40 assess heat tolerance threshold. Hydropriming was then applied test treatment seeds' ability cope stress. An alkaline comet assay Quantitative Real Time-Polymerase Chain Reaction embryos excised primed control seeds. Phenotyping seedling development stage highlighted accession-specific beneficial under conditions. In L. seeds, revealed dynamics stress-induced DNA damage accumulation, well repair patterns promoted by hydropriming. expression genes involved antioxidant response consistently responsive wave conditions accessions.

Language: Английский

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Nitric oxide-mediated thermomemory: a new perspective on plant heat stress resilience

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 28, 2025

In the intricate world of plant responses to environmental stress, concept thermomemory has emerged as a fascinating and complex phenomenon. Plants, sessile organisms, continually face challenge adapting fluctuating climates, ability “remember” prior heat stress encounters, phenomenon known is testament their remarkable adaptability. Nitric oxide (NO), versatile signaling molecule in physiology, been implicated myriad cellular processes crucial for adaptation. From its involvement stomatal regulation influence on gene expression antioxidant defense mechanisms, NO emerges central orchestrator plant’s response elevated temperatures. Exploration NO-mediated pathways provides insights into how plants not only cope with immediate but also retain memory these encounters. Unraveling molecular intricacies NO’s enhances our understanding sophisticated strategies employed by navigate changing climate, offering potential avenues innovative approaches enhancing crop resilience sustainable agriculture.

Language: Английский

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Cotton under heat stress: a comprehensive review of molecular breeding, genomics, and multi-omics strategies

Frontiers in Genetics, Journal Year: 2025, Volume and Issue: 16

Published: March 18, 2025

Cotton is a vital fiber crop for the global textile industry, but rising temperatures due to climate change threaten its growth, quality and yields. Heat stress disrupts key physiological biochemical processes, affecting carbohydrate metabolism, hormone signaling, calcium gene regulation expression. This review article explores cotton's defense mechanism against heat stress, including epigenetic regulations transgenic approaches, with focus on genome editing tools. Given limitations of traditional breeding, advanced omics technologies such as GWAS, transcriptomics, proteomics, ionomics, metabolomics, phenomics CRISPR-Cas9 offer promising solutions developing heat-resistant cotton varieties. highlights need innovative strategies ensure sustainable production under change.

Language: Английский

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Establishment and Maintenance of Heat-Stress Memory in Plants

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(16), P. 8976 - 8976

Published: Aug. 18, 2024

Among the rich repertoire of strategies that allow plants to adapt high-temperature stress is heat-stress memory. The mechanisms underlying establishment and maintenance memory are poorly understood, although chromatin opening state appears be an important structural basis for maintaining influenced by epigenetic modifications, making DNA histone modifications entry points understanding heat-shock Current research suggests traditional signaling pathway components might involved in opening, thereby promoting plants. In this review, we discuss relationship between structure-based We also association signals modifications. Finally, potential ideas exploring plant adaptation future.

Language: Английский

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Circadian and environmental signal integration in a natural population of Arabidopsis

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(35)

Published: Aug. 22, 2024

Plants sense and respond to environmental cues during 24 h fluctuations in their environment. This requires the integration of internal such as circadian timing with light temperature elicit cellular responses through signal transduction. However, transduction signals by plants growing natural environments remains poorly understood. To gain insights into dynamics signaling nature, we performed a field study from nucleus chloroplasts population Arabidopsis halleri. Using several modeling approaches interpret data, identified that clock are key regulators this pathway under conditions. We potential time-delay steps between components, diel response reminiscent process gating. found our framework can be extended other pathways undergo oscillations cues. approach combining studies gene expression allowed us identify dynamic cues, plant cells, naturally fluctuating cycles.

Language: Английский

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The MVPs (masterful versatile players): Chromatin factors as pivotal mediators between 3D genome organization and the response to environment

Current Opinion in Plant Biology, Journal Year: 2024, Volume and Issue: 81, P. 102599 - 102599

Published: July 10, 2024

In recent years, the study of genome dynamics has become a prominent research field due to its influence on understanding control gene expression. The 3D organization unveiled multiple mechanisms in orchestrating chromosome folding. Growing evidence reveals that these are not only important for organization, but play pivotal role enabling plants adapt environmental stimuli. this review, we provide an overview current knowledge concerning epigenetic factors and regulatory elements driving their responses external We discuss most findings, previous evidence, explore implications future research.

Language: Английский

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Focus on epigenetics

PLANT PHYSIOLOGY, Journal Year: 2024, Volume and Issue: 194(4), P. 1925 - 1928

Published: Feb. 24, 2024

Language: Английский

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Emerging roles of plant transcriptional gene silencing under heat

The Plant Journal, Journal Year: 2024, Volume and Issue: 119(3), P. 1197 - 1209

Published: June 12, 2024

Plants continuously endure unpredictable environmental fluctuations that upset their physiology, with stressful conditions negatively impacting yield and survival. As a contemporary threat of rapid progression, global warming has become one the most menacing ecological challenges. Thus, understanding how plants integrate respond to elevated temperatures is crucial for ensuring future crop productivity furthering our knowledge historical acclimation adaptation. While canonical heat-shock response thermomorphogenesis have been extensively studied, evidence increasingly highlights critical role regulatory epigenetic mechanisms. Among these, involvement under heat heterochromatic suppression mediated by transcriptional gene silencing (TGS) remains least understood. TGS refers multilayered metabolic machinery largely responsible invasive parasitic nucleic acids maintenance parental imprints. Its molecular effectors include DNA methylation, histone variants post-translational modifications, chromatin packing remodeling. This work focuses on both established emerging insights into contribution physiology high temperatures. We summarized potential roles constitutive facultative heterochromatin as well impactful genes, highlighting events where loss not yet associated corresponding changes in marks.

Language: Английский

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