Involvement of Histone Modifications in Plant Abiotic Stress Responses

Yuan, Ling; Liu, Xuncheng; Luo, Ming; Yang, Shi-Nine; Wu, Keqiang

doi:10.1111/j.1744-7909.2013.12060.x

Cited by 32 publications

(38 citation statements)

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“…Genes involved in RNA metabolic processes were significantly represented under different stress conditions, suggesting the potential role of RNA processing in abiotic stress responses. Recent studies have shown the role of epigenetic modifications in abiotic stress responses and adaptation (Uthup et al 2011;Sahu et al 2013;Yuan et al 2013). It has also been established that plants employ enormous epigenetic modifications (DNA methylation) under abiotic stress conditions to stabilize the genome via deactivation of transposon activity, suppression of homologous recombination, and regulation of downstream gene expression (Khrustaleva et al 2005;Lukens and Zhan 2007;Santos et al 2011).…”

Section: Discussionmentioning

confidence: 98%

“…It has also been established that plants employ enormous epigenetic modifications (DNA methylation) under abiotic stress conditions to stabilize the genome via deactivation of transposon activity, suppression of homologous recombination, and regulation of downstream gene expression (Khrustaleva et al 2005;Lukens and Zhan 2007;Santos et al 2011). Histone modifications, such as acetylation and methylation, also play an essential role in regulation of stress-responsive gene expression (Yuan et al 2013;Zong et al 2013).…”

Section: Discussionmentioning

confidence: 99%

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Genome-Scale Transcriptomic Insights into Molecular Aspects of Abiotic Stress Responses in Chickpea

2014

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Chickpea is an important legume crop plant and various abiotic stresses are the major constraints affecting its overall productivity. For discovery of candidate genes involved in abiotic stress responses, we employed RNA sequencing for transcriptome profiling of roots and shoots of chickpea seedlings subjected to desiccation, salinity, and cold stresses. In total, we generated more than 250 million highquality reads from non-stressed and stressed tissue samples. Data analyses provided a comprehensive view of the dynamic transcriptional response of chickpea tissues to different abiotic stresses. Differential expression analysis identified a total of 11,640 chickpea transcripts showing response to at least one of the stress conditions. The reference-based transcriptome assembly was generated and at least 3,536 previously unannotated gene loci differentially expressed under abiotic stress conditions were identified. We observed extensive transcriptional reprogramming of genes involved in transcription regulation, energy metabolism, photosynthesis, hormonal responses, secondary metabolite biosynthesis and osmoprotectant metabolism under stress conditions. In addition, genes involved in post-translational modifications, RNA metabolic processes, and epigenetic regulation were also significantly highlighted. The comprehensive transcriptome analyses presented in this study revealed several potential key regulators of plant response to abiotic stresses and open avenues to carry out functional and applied genomic studies for improving abiotic stress tolerance in chickpea.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Genome-Scale Transcriptomic Insights into Molecular Aspects of Abiotic Stress Responses in Chickpea

2014

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“…Methylation of lysine residues within histone tails is an important modification that contributes to an increase in gene expression levels or their repression depending on the specific residue methylated and the degree of methylation (Heightman, 2011). Therefore, lysine-specific demethylase 5A plays an essential role in regulating various developmental processes (Liu et al, 2010), transcriptional regulation (Zhou et al, 2010), and plant responses to various stresses (Yuan et al, 2013). TDF3, which corresponds to calcium-dependent protein kinase, is upregulated in haustorium.…”

Section: Discussionmentioning

confidence: 99%

Overexpression of stress-related genes in Cuscuta campestris in response to host defense reactions

Rezaei

Alamisaeed

Moslemkhani

2017

bta

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Herb dodder (Cuscuta spp.) is one of the most important parasitic plants that can severely affect crop yields in the world. So far, interactions of this parasitic plant with hosts were not investigated adequately. Here, we conducted a differential expression analyzes and identified a number of genes that were differentially expressed in haustorium tissue compared with the stem of Cuscuta campestris growing on Alfalfa. We obtained 439 cDNA fragments from haustoria (parasite-host connection zone) and stems (25 cm away from connections zones) using the cDNA-AFLP (Amplified Fragment Length Polymorphism) method with eight different primer combinations. Of 439 transcript-derived fragments (TDFs) that were detected, 145 fragments were identified as differentially expressed genes. Five TDF sequences were similar to known functional genes involved in signal transduction, metabolism, respiration, and stress responses. Genes encoding DEAD-box ATP-dependent RNA helicase, potential heme-binding protein, lysine-specific demethylase 5A were selected for qRT-PCR. The qRT-PCR analyzes confirmed the results obtained using cDNA-AFLP. Our findings shed light on the elicitation of dodder defense responses in the connection zone to overcome plant defense reactions.

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“…Posttranslational modifi cation studies have revealed that the molecular mechanisms driving the responses of plants to environmental stresses include histone acetylation, methylation, ubiquitination, and phosphorylation. Combined effects of these modifi cations play an essential role in the regulation of stress-responsive gene expression (Yuan et al 2013 ). Lastly, metabolomics also offers a robust tool to analyze varied metabolites in an integrated method that can act as a powerful tool in distinguishing the complicated network concerned in stress tolerance.…”

Section: Functional Genomics Of Abiotic Stress Signalingmentioning

confidence: 99%

Molecular Approaches in Deciphering Abiotic Stress Signaling Mechanisms in Plants

Singh

Khatri

Katiyar

et al. 2015

Elucidation of Abiotic Stress Signaling in Plants

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There has been considerable interest in the area of abiotic stress research, especially in the direction of producing improved crop varieties that can encounter adversities of abiotic stresses such as heat, cold, drought, osmotic, and salinity effectively. These stresses can act alone or in combination cause greater damage to plants. Thus, in order to combat and survive in these extreme environmental conditions, plants have evolved tolerance mechanisms. These mechanisms include interconnected networks of signaling cascade, which involves role of a large number of genes and their products in tolerance mechanism. The clear-cut understanding of these stress tolerance/resistance mechanisms is critical in order to improve the performance of the plant. Deciphering such complex signaling cascades using traditional genomic approach has been diffi cult, and therefore, high-throughput functional genomics approaches need to be employed using tools like expression profi ling, transcriptomics, proteomics, and metabolomics during tolerance response. Keywords Abiotic stress • Legume • Transcription factor • WRKY family IntroductionDynamic climatic conditions altering the environment play a crucial role in plant performance. These altered environmental conditions act as an environmental stress to plants. Effect of abiotic stresses (temperature, drought, salt, etc.) on plants is drastic, both for vegetative and reproductive potential. These stress conditions lead to change in the resource availability of plants, which are of utmost importance for their optimum performance. One way to mitigate these conditions is environmentinduced shift in the phenotype of the plants. The environmental cues that lead to change phenotype of plants are genetically controlled in a hierarchical fashion. A clear-cut understanding of the stress tolerance/resistance mechanisms is critical

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Involvement of Histone Modifications in Plant Abiotic Stress Responses

Cited by 32 publications

References 0 publications

Genome-Scale Transcriptomic Insights into Molecular Aspects of Abiotic Stress Responses in Chickpea

Genome-Scale Transcriptomic Insights into Molecular Aspects of Abiotic Stress Responses in Chickpea

Overexpression of stress-related genes in Cuscuta campestris in response to host defense reactions

Molecular Approaches in Deciphering Abiotic Stress Signaling Mechanisms in Plants

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