Epigenetic Control of Plant Cold Responses

Banerjee, Aditya; Wani, Shabir Hussain; Roychoudhury, Aryadeep

doi:10.3389/fpls.2017.01643

Cited by 93 publications

(45 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These exhibited better tolerance towards chilling stress compared to the sets, where GB was produced in the cytosol and also in greater amounts [189]. These observations might be accounted for due to the effective GB-mediated protection of the photosynthetic apparatus, which is the prime machinery to be affected under oxidative stress [190].…”

Section: Transgenic Approachesmentioning

confidence: 89%

Targeting Glycinebetaine for Abiotic Stress Tolerance in Crop Plants: Physiological Mechanism, Molecular Interaction and Signaling

Hasanuzzaman¹,

Banerjee²,

Bhuyan³

et al. 2019

Phyton

Self Cite

View full text Add to dashboard Cite

In the era of climate change, abiotic stresses (e.g., salinity, drought, extreme temperature, flooding, metal/metalloid(s), UV radiation, ozone, etc.) are considered as one of the most complex environmental constraints that restricts crop production worldwide. Introduction of stress-tolerant crop cultivars is the most auspicious way of surviving this constraint, and to produce these types of tolerant crops. Several bioengineering mechanisms involved in stress signaling are being adopted in this regard. One example of this kind of manipulation is the osmotic adjustment. The quarternary ammonium compound glycinebetaine (GB), also originally referred to as betaine is a methylated glycine derivative. Among the betaines, GB is the most abundant one in plants, which is mostly produced in response to dehydration caused by different abiotic stresses like drought, salinity, and extreme temperature. Glycinebetaine helps in decreased accumulation and detoxification of ROS, thereby restoring photosynthesis and reducing oxidative stress. It takes part in stabilizing membranes and macromolecules. It is also involved in the stabilization and protection of photosynthetic components, such as ribulose-1, 5-bisphosphate carboxylase/oxygenase, photosystem II and quarternary enzyme and protein complex structures under environmental stresses. Glycinebetaine was found to perform in chaperone-induced protein disaggregation. In addition, GB can confer stress tolerance in very low concentrations, and it acts in activating defense responsive genes with stress protection. Recently, field application of GB has also shown protective effects against environmental adversities increasing crop yield and quality. In this review, we will focus on the role of GB in conferring abiotic stress tolerance and the possible ways to engineer GB biosynthesis in plants.

show abstract

Section: Transgenic Approachesmentioning

confidence: 89%

Targeting Glycinebetaine for Abiotic Stress Tolerance in Crop Plants: Physiological Mechanism, Molecular Interaction and Signaling

Hasanuzzaman¹,

Banerjee²,

Bhuyan³

et al. 2019

Phyton

Self Cite

View full text Add to dashboard Cite

show abstract

“…Hyper-acetylation of histone H3K9 in promoter regions of DREB1, a main regulator of cold response, was observed in rice and was decreased again when plants were returned to control temperatures, suggesting that deacetylation keeps the gene in an off-state in the absence of cold (Roy et al, 2014). Recently, epigenetic changes involved in cold response were reviewed by different authors (Baulcombe and Dean, 2014;Kim et al, 2015;Asensi-Fabado et al, 2017;Banerjee et al, 2017;Luo et al, 2017;Friedrich et al, 2019). Furthermore, epigenetic changes that establish environmental memory in plants have been described (He and Li, 2018).…”

Section: Introductionmentioning

confidence: 99%

Transcriptional and Post-Transcriptional Regulation and Transcriptional Memory of Chromatin Regulators in Response to Low Temperature

et al. 2020

View full text Add to dashboard Cite

Chromatin regulation ensures stable repression of stress-inducible genes under nonstress conditions and transcriptional activation and memory of stress-related genes after stress exposure. However, there is only limited knowledge on how chromatin genes are regulated at the transcriptional and post-transcriptional level upon stress exposure and relief from stress. We reveal that the repressive modification histone H3 lysine 27 trimethylation (H3K27me3) targets genes which are quickly activated upon cold exposure, however, H3K27me3 is not necessarily lost during a longer time in the cold. In addition, we have setup a quantitative reverse transcription polymerase chain reactionbased platform for high-throughput transcriptional profiling of a large set of chromatin genes. We find that the expression of many of these genes is regulated by cold. In addition, we reveal an induction of several DNA and histone demethylase genes and certain histone variants after plants have been shifted back to ambient temperature (deacclimation), suggesting a role in the memory of cold acclimation. We also re-analyze large scale transcriptomic datasets for transcriptional regulation and alternative splicing (AS) of chromatin genes, uncovering an unexpected level of regulation of these genes, particularly at the splicing level. This includes several vernalization regulating genes whose AS may result in cold-regulated protein diversity. Overall, we provide a profiling platform for the analysis of chromatin regulatory genes and integrative analyses of their regulation, suggesting a dynamic regulation of key chromatin genes in response to low temperature stress.

show abstract

“…It is possible that this mechanism may operate more generally across insects to control diapause dynamics. While well documented that cold mediates epigenetic regulation of transcriptional states in plants (reviewed in Banerjee, Wani, & Roychoudhury, ), this relationship is not well established in animals. It will be interesting to determine if in monarchs cold‐mediated effects on diapause through cryoprotectant accumulation and calcium signalling, and effects due to epigenetic regulation, are integrated or independent responses.…”

Section: Discussionmentioning

confidence: 99%

Monarch butterflies use an environmentally sensitive, internal timer to control overwintering dynamics

Green

Kronforst

2019

Molecular Ecology

View full text Add to dashboard Cite

The monarch butterfly (Danaus plexippus) complements its iconic migration with diapause, a hormonally controlled developmental programme that contributes to winter survival at overwintering sites. Although timing is a critical adaptive feature of diapause, how environmental cues are integrated with genetically‐determined physiological mechanisms to time diapause development, particularly termination, is not well understood. In a design that subjected western North American monarchs to different environmental chamber conditions over time, we modularized constituent components of an environmentally‐controlled, internal diapause termination timer. Using comparative transcriptomics, we identified molecular controllers of these specific diapause termination components. Calcium signalling mediated environmental sensitivity of the diapause timer, and we speculate that it is a key integrator of environmental condition (cold temperature) with downstream hormonal control of diapause. Juvenile hormone (JH) signalling changed spontaneously in diapause‐inducing conditions, capacitating response to future environmental condition. Although JH is a major target of the internal timer, it is not itself the timer. Epigenetic mechanisms are implicated to be the proximate timing mechanism. Ecdysteroid, JH, and insulin/insulin‐like peptide signalling are major targets of the diapause programme used to control response to permissive environmental conditions. Understanding the environmental and physiological mechanisms of diapause termination sheds light on fundamental properties of biological timing, and also helps inform expectations for how monarch populations may respond to future climate change.

show abstract

Epigenetic Control of Plant Cold Responses

Cited by 93 publications

References 44 publications

Targeting Glycinebetaine for Abiotic Stress Tolerance in Crop Plants: Physiological Mechanism, Molecular Interaction and Signaling

Targeting Glycinebetaine for Abiotic Stress Tolerance in Crop Plants: Physiological Mechanism, Molecular Interaction and Signaling

Transcriptional and Post-Transcriptional Regulation and Transcriptional Memory of Chromatin Regulators in Response to Low Temperature

Monarch butterflies use an environmentally sensitive, internal timer to control overwintering dynamics

Contact Info

Product

Resources

About