Acclimation

Description
Occurs within the lifetime of an organism.
Last Updated
2026-06-01
Reading Time
6 minute(s)
Word Count
1171 words

Table of Contents

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Terminology

Acclimation Reversible
Occurs within the lifetime of an organism.
Does not produce a novel phenotypic trait; hence, it does not proceed through natural selection.
Allows organisms to adjust their morphological, behavioural, physical, and/or biochemical traits in response to changes in their environment.
Adaptation Irreversible
Occurs over several generations.
Produces a novel phenotypic trait that has a functional role in the environment and therefore, it proceeds through natural selection.
Allows organisms to fit their environment by enhancing their evolutionary fitness.

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A Comprehensive Understanding of Dietary Effects on C. elegans Physiology Zhou et al. 2019 Review Article
"To reveal novel signaling pathways responsive to different diets, C. elegans and its bacterial diet were used as an interspecies model system to mimic the interaction between host and gut microbiota."
Pronounced Plastic and Evolutionary Responses to Unpredictable Thermal Fluctuations in Drosophila simulans et al. Article
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HIF-1 is required for heat acclimation in the nematode Caenorhabditis elegans Treinin et al. 2003 Article
"[Heat acclimation] attained by maintaining adult C. elegans at 25°C for 18 h enhanced heat endurance of wild-type worms subjected to heat stress (35°C) and conferred protection against hypoxia and cadmium."
"We conclude that HIF-1 upregulation is both an evolutionarily conserved and a necessary component of heat acclimation."
"The known targets of HIF-1 imply that metabolic adaptations are essential for [heat acclimation]-dependent tolerance to heat and heavy metals, in addition to their known role in hypoxic adaptation."
Hormonal and metabolic responses to upper temperature extremes in divergent life-history ecotypes of a garter snake et al. Article
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Experimental Approaches for Testing if Tolerance Curves Are Useful for Predicting Fitness in Fluctuating Environments et al. Article
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A Numerical Model Supports the Evolutionary Advantage of Recombination Plasticity in Shifting Environments et al. NO PDF
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Hyperosmotic stress memory in Arabidopsis is mediated by distinct epigenetically labile sites in the genome and is restricted in the male germline by DNA glycosylase activity et al. Article
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Epigenomic plasticity of Arabidopsis msh1 mutants under prolonged cold stress et al. Article
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Timescales of human adaptation: the role of epigenetic processes et al. Article
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Training Load Oscillation and Epigenetic Plasticity: Molecular Pathways Connecting Energy Metabolism and Athletic Personality Mănescu 2026 Review Article
"This narrative review examines how training load oscillation (TLO)—the deliberate variation in exercise intensity, volume, and substrate availability—may function as a systemic epigenetic stimulus capable of shaping both physiological and psychological adaptation."
Chronic low dose 90Sr contamination in Lemna minor: from transcriptional dynamics of epigenetic regulators to population level effects Boldrini et al. 2025 Research Article
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Bone marrow immune cells respond to fluctuating nutritional stress to constrain weight regain et al. Article
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Epigenetic regulation of sulfur homeostasis in plants et al. Article
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Role of oxygen sensing and hypoxia-inducible factors in orchestrating innate immune responses et al. Article
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Integrated temporal transcriptional and epigenetic single-cell analysis reveals the intrarenal immune characteristics in an early-stage model of IgA nephropathy during its acute injury et al. Article
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Epigenetics and cytoprotection with heat acclimation et al. Article
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Advances and applications of environmental stress adaptation research et al. Article
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Fluctuating asymmetry: an epigenetic measure of stress et al. Article
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BCL6 regulates brown adipocyte dormancy to maintain thermogenic reserve and fitness et al. Article
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Epigenetic and Genetic Contributions to Adaptation in Chlamydomonas et al. Article
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Genomic, transcriptomic and epigenomic signatures of ageing and cold adaptation in the Antarctic clam Laternula elliptica et al. Article
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Hyperosmotic priming of Arabidopsis seedlings establishes a long-term somatic memory accompanied by specific changes of the epigenome et al. Article
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Benchmarking sample pooling for epigenomics of natural populations et al. Article
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Plant Epigenetic Stress Memory Induced by Drought: A Physiological and Molecular Perspective et al. NO PDF
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Reconsidering plant memory: Intersections between stress recovery, RNA turnover, and epigenetics et al. Article
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Acclimatization and Adaptive Capacity of Marine Species in a Changing Ocean et al. Article
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Cold stress induces rapid gene-specific changes in the levels of H3K4me3 and H3K27me3 in Arabidopsis thaliana et al. Article
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Similarities in temperature-dependent gene expression plasticity across timescales in threespine stickleback (Gasterosteus aculeatus) et al. Article
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Molecular physiology regulating cold tolerance and acclimation of Caenorhabditis elegans et al. Article
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Cold Tolerance in the Nematode Caenorhabditis elegans et al. Article
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Role of gene body methylation in acclimatization and adaptation in a basal metazoan Dixon et al. 2018 Article
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Mapping stress memory: genetic and epigenetic insights into combined drought and heat tolerance in barley et al. NO PDF
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Transgenerational effects of heat shock on gene regulation and fitness-related traits in natural Drosophila populations et al. Article
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Metabolic Disruption Early in Life is Associated With Latent Carcinogenic Activity of Dichloroacetic Acid in Mice et al. Article
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