Epigenetic regulation of heat and cold stress responses in crop plants

Verma, Neha; Giri, Shiv Kumar; Singh, Gulab; Gill, Ritu; Kumar, Anil

doi:10.1016/j.plgene.2022.100351

Cited by 15 publications

(7 citation statements)

References 109 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies reveal that DNA methylations, such as 5-methylcytosine (5mC) and N 6 -methyladenine (6mA), regulate transcriptional activities in response to cold stress ( Zhang et al., 2018 ; Sicilia et al., 2020 ; Kidokoro et al., 2022 ; Verma et al., 2022 ). Compared with 6mA, a new epigenetic marker, 5mC is the most-studied modification under cold stress.…”

Section: Dna Methylation During Cold Stress In Plantsmentioning

confidence: 99%

Epigenetic stress memory: A new approach to study cold and heat stress responses in plants

Ramakrishnan

Zhang

Mullasseri³

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

Understanding plant stress memory under extreme temperatures such as cold and heat could contribute to plant development. Plants employ different types of stress memories, such as somatic, intergenerational and transgenerational, regulated by epigenetic changes such as DNA and histone modifications and microRNAs (miRNA), playing a key role in gene regulation from early development to maturity. In most cases, cold and heat stresses result in short-term epigenetic modifications that can return to baseline modification levels after stress cessation. Nevertheless, some of the modifications may be stable and passed on as stress memory, potentially allowing them to be inherited across generations, whereas some of the modifications are reactivated during sexual reproduction or embryogenesis. Several stress-related genes are involved in stress memory inheritance by turning on and off transcription profiles and epigenetic changes. Vernalization is the best example of somatic stress memory. Changes in the chromatin structure of the Flowering Locus C (FLC) gene, a MADS-box transcription factor (TF), maintain cold stress memory during mitosis. FLC expression suppresses flowering at high levels during winter; and during vernalization, B3 TFs, cold memory cis-acting element and polycomb repressive complex 1 and 2 (PRC1 and 2) silence FLC activation. In contrast, the repression of SQUAMOSA promoter-binding protein-like (SPL) TF and the activation of Heat Shock TF (HSFA2) are required for heat stress memory. However, it is still unclear how stress memory is inherited by offspring, and the integrated view of the regulatory mechanisms of stress memory and mitotic and meiotic heritable changes in plants is still scarce. Thus, in this review, we focus on the epigenetic regulation of stress memory and discuss the application of new technologies in developing epigenetic modifications to improve stress memory.

show abstract

Section: Dna Methylation During Cold Stress In Plantsmentioning

confidence: 99%

Epigenetic stress memory: A new approach to study cold and heat stress responses in plants

Ramakrishnan

Zhang

Mullasseri³

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…Additionally, to combat the cold-induced damage, some plants developed a unique process called cold acclimation where plants can acquire enhanced resistance to freezing stress when they are exposed to nonlethal low temperatures for a few days [ 21 ]. Various aspects of cold stress and the underlying mechanisms linked to these processes including transcriptional regulation, calcium signaling, the role of small molecules, and epigenetic regulation have been extensively covered in some recent reviews [ 22 , 23 , 24 , 25 , 26 , 27 ]. For chilling or low-temperature stress responses in plants, C-repeat-binding factors (CBF)-mediated pathway is the most studied one and is considered as the primary regulatory pathway [ 28 ].…”

Section: Climate Change and Plant Growthmentioning

confidence: 99%

Cellular Protein Trafficking: A New Player in Low-Temperature Response Pathway

Ashraf

Rahman

2022

Plants

View full text Add to dashboard Cite

Unlike animals, plants are unable to escape unfavorable conditions, such as extremities of temperature. Among abiotic variables, the temperature is notableas it affects plants from the molecular to the organismal level. Because of global warming, understanding temperature effects on plants is salient today and should be focused not only on rising temperature but also greater variability in temperature that is now besetting the world’s natural and agricultural ecosystems. Among the temperature stresses, low-temperature stress is one of the major stresses that limits crop productivity worldwide. Over the years, although substantial progress has been made in understanding low-temperature response mechanisms in plants, the research is more focused on aerial parts of the plants rather than on the root or whole plant, and more efforts have been made in identifying and testing the major regulators of this pathway preferably in the model organism rather than in crop plants. For the low-temperature stress response mechanism, ICE-CBF regulatory pathway turned out to be the solely established pathway, and historically most of the low-temperature research is focused on this single pathway instead of exploring other alternative regulators. In this review, we tried to take an in-depth look at our current understanding of low temperature-mediated plant growth response mechanism and present the recent advancement in cell biological studies that have opened a new horizon for finding promising and potential alternative regulators of the cold stress response pathway.

show abstract

“…Temperature is one of the main limiting factors which affect natural distribution of plant species worldwide. Sub‐tropical and temperate crops are susceptible to low temperature throughout their entire growth period (Verma et al., 2022). Low temperature or cold stress could be divided into two types including chilling stress (0–15°C) and freezing stress (below 0°C).…”

Section: Introductionmentioning

confidence: 99%

A bermudagrass variant exhibits strong tolerance to low temperature associated with enhanced sugar metabolism and cold‐responsive pathways

et al. 2023

View full text Add to dashboard Cite

As a warm‐season turfgrass, bermudagrass (Cynodon) is sensitive to low ambient temperature. The objectives of this study were to evaluate cold tolerance of a new variant Chuannong‐3 under field condition and to further elucidate metabolic and molecular bases of cold tolerance in the Chuannong‐3 as compared to triploid Tifdwarf (Cynodon transvaalensis × Cynodon dactylon) and tetraploid common bermudagrass 001 (C. dactylon). The Chuannong‐3 was identified as a triploid bermudagrass based on ploidy analysis. Chuannong‐3, Tifdwarf, or common bermudagrass 001 exhibited different tolerance to low temperature in field (Chuannong‐3 > common bermudagrass 001 > Tifdwarf). The Chuannong‐3 maintained significantly lower oxidative damage to cell membrane system, chlorophyll loss, and inhibition of photochemical efficiency as well as higher water‐soluble carbohydrate content than Tifdwarf or common bermudagrass 001 in winter of 2022 and 2021. Further study found that Chunanong‐3 exhibited the highest glucose, fructose, sucrose, raffinose content, raffinose synthase activity, and CdSPS1 expression as compared to Tifdwarf and common bermudagrass 001, which provided potential protection against chilling and freezing damages. Chilling and freezing stresses significantly up‐regulated ABA‐dependent (endogenous ABA level, CdABF1, CdDHN4, and CdLEA3) and ABA‐independent (CdWRKY2, CdCBF1, and CdCOR440) pathways in three bermudagrasses, but the most pronounced effects were detected in the Chuannong‐3. These findings indicated that Chuannong‐3 had better ability to acclimate to low temperature stress in relation to up‐regulation of sugar accumulation and metabolism, ABA signaling, and CBF‐COR pathway. This new variant Chuannong‐3 could be a valuable bermudagrass grown in temperate and transition zones.

show abstract

Epigenetic regulation of heat and cold stress responses in crop plants

Cited by 15 publications

References 109 publications

Epigenetic stress memory: A new approach to study cold and heat stress responses in plants

Epigenetic stress memory: A new approach to study cold and heat stress responses in plants

Cellular Protein Trafficking: A New Player in Low-Temperature Response Pathway

A bermudagrass variant exhibits strong tolerance to low temperature associated with enhanced sugar metabolism and cold‐responsive pathways

Contact Info

Product

Resources

About