Cold adaptation strategies in plants—An emerging role of epigenetics and antifreeze proteins to engineer cold resilient plants

Satyakam,; Zinta, Gaurav; Singh, Rajesh Kumar; Kumar, Rajiv

doi:10.3389/fgene.2022.909007

Cited by 31 publications

(14 citation statements)

References 227 publications

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“…This association between miR397 and its target genes under cold treatments has been observed in plants including wheat (Gupta et al, 2014) and grapevine (Sun et al, 2015). In addition, miR397 overexpression improved the tolerance to cold stress in Arabidopsis (Dong and Pei, 2014;Satyakam et al, 2022). The core regulator in cold acclimation ICE1 (Chinnusamy et al, 2007) was identified as a target of miR397 in cold adaption in wheat.…”

Section: Molecular Response To Cold Stress In Sorghummentioning

confidence: 73%

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Responses of sorghum to cold stress: A review focused on molecular breeding

2023

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Climate change has led to the search for strategies to acclimatize plants to various abiotic stressors to ensure the production and quality of crops of commercial interest. Sorghum is the fifth most important cereal crop, providing several uses including human food, animal feed, bioenergy, or industrial applications. The crop has an excellent adaptation potential to different types of abiotic stresses, such as drought, high salinity, and high temperatures. However, it is susceptible to low temperatures compared with other monocotyledonous species. Here, we have reviewed and discussed some of the research results and advances that focused on the physiological, metabolic, and molecular mechanisms that determine sorghum cold tolerance to improve our understanding of the nature of such trait. Questions and opportunities for a comprehensive approach to clarify sorghum cold tolerance or susceptibility are also discussed.

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Section: Molecular Response To Cold Stress In Sorghummentioning

confidence: 73%

“…Some miRNAs participate in plant responses to cold stress (Thiebaut et al, 2012;Liu et al, 2018;Martı ́nez Nu ́ñez et al, 2021;Satyakam et al, 2022). MiR397 is involved in different abiotic stress, including cold (Huang et al, 2020).…”

Section: Molecular Response To Cold Stress In Sorghummentioning

confidence: 99%

Responses of sorghum to cold stress: A review focused on molecular breeding

2023

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“…Cold-responsive genes (CORs) are regulated under CBFs and directly cope with cold stress, with most of these genes encoding late embryogenesis abundant (LEA) proteins ( Fig. 3A ) [ 25 ]. Triplostegia glandulifera had 77 LEA proteins, while L. japonica had 64 ( Fig.…”

Section: Resultsmentioning

confidence: 99%

Coping with alpine habitats: genomic insights into the adaptation strategies of Triplostegia glandulifera (Caprifoliaceae)

Zhang,

Dong,

Ren

et al. 2024

Horticulture Research

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How plants find a way to thrive in alpine habitats remains largely unknown. Here we present a chromosome-level genome assembly for an alpine medicinal herb, Triplostegia glandulifera (Caprifoliaceae), and 13 transcriptomes from other species of Dipsacales. We detected a whole-genome duplication event in T. glandulifera that occurred prior to the diversification of Dipsacales. Preferential gene retention after whole-genome duplication was found to contribute to increasing cold-related genes in T. glandulifera. A series of genes putatively associated with alpine adaptation (e.g. CBFs, ERF-VIIs, and RAD51C) exhibited higher expression levels in T. glandulifera than in its low-elevation relative, Lonicera japonica. Comparative genomic analysis among five pairs of high- vs low-elevation species, including a comparison of T. glandulifera and L. japonica, indicated that the gene families related to disease resistance experienced a significantly convergent contraction in alpine plants compared with their lowland relatives. The reduction in gene repertory size was largely concentrated in clades of genes for pathogen recognition (e.g. CNLs, prRLPs, and XII RLKs), while the clades for signal transduction and development remained nearly unchanged. This finding reflects an energy-saving strategy for survival in hostile alpine areas, where there is a tradeoff with less challenge from pathogens and limited resources for growth. We also identified candidate genes for alpine adaptation (e.g. RAD1, DMC1, and MSH3) that were under convergent positive selection or that exhibited a convergent acceleration in evolutionary rate in the investigated alpine plants. Overall, our study provides novel insights into the high-elevation adaptation strategies of this and other alpine plants.

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“…These mechanisms may largely reflect the direct destructive action of thermal stress to cellular components (e.g. denaturation of proteins, cellular membranes and lipids) (Levitt, 1980;Thomashow, 1999;Ruelland & Zachowski, 2010;Narayanan et al, 2016;Tang et al, 2016;Hayes et al, 2021;Zinta et al, 2022). However, secondary mechanisms that damage various cellular and physiological processes (e.g.…”

Section: The Stressful Temperature Rangementioning

confidence: 99%

Application of the thermal death time model in predicting thermal damage accumulation in plants

Faber,

Ørsted,

Ehlers

2024

Preprint

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The thermal death time (TDT) model suggests that the duration an organism can tolerate thermal stress decreases exponentially as the intensity of the temperature becomes more extreme. This model has been used to predict damage accumulation in ectotherm animals and plants under fluctuating thermal conditions. However, the critical assumption of the TDT model, which is additive damage accumulation, remains unverified for plants. We assessed thermal damage in Thymus vulgaris under different heat and cold treatments and used TDT models to predict time to thermal failure of PSII. Additionally, thermal tolerance estimates from previous studies were used to create TDT models to assess the applicability of this framework in plants. We show that thermal damage obtained at different stress intensities and durations is additive for both heat and cold stress, and that the TDT model can predict damage accumulation at both temperature extremes. Data from previous studies indicate a broad applicability of this approach across species, traits, and environments. The TDT framework reveals a thermal tolerance landscape describing the exponential relationship between exposure duration, stress intensity and damage accumulation in plants. This thermal sensitivity emphasizes the potential impact of future thermal extremes on the mortality and distribution of plant species.

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Cold adaptation strategies in plants—An emerging role of epigenetics and antifreeze proteins to engineer cold resilient plants

Cited by 31 publications

References 227 publications

Responses of sorghum to cold stress: A review focused on molecular breeding

Responses of sorghum to cold stress: A review focused on molecular breeding

Coping with alpine habitats: genomic insights into the adaptation strategies of Triplostegia glandulifera (Caprifoliaceae)

Application of the thermal death time model in predicting thermal damage accumulation in plants

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