Elucidating the Response of Crop Plants towards Individual, Combined and Sequentially Occurring Abiotic Stresses

Anwar, Khalid; Joshi, Rohit; Dhankher, Om Parkash; Singla‐Pareek, Sneh L.; Pareek, Ashwani

doi:10.3390/ijms22116119

Cited by 45 publications

(28 citation statements)

References 208 publications

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“…Environmental stresses, such as high temperatures and drought, adversely affect wheat viability and yield globally, especially during pollination and grain-filling stages. Plants have developed various morphological, physiological, biochemical and molecular alterations, and adaptation strategies to acquire stress tolerance [ 1 , 2 ]. One of the effective strategies is to transcriptionally regulate the expression of stress-related genes, among which transcription factors play a crucial role by activating and/or inhibiting specific genes [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization of the Wheat Heat Shock Factor TaHsfA2e-5D Conferring Heat and Drought Tolerance in Arabidopsis

Miao

et al. 2022

IJMS

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Environmental stresses, especially heat and drought, severely limit plant growth and negatively affect wheat yield and quality worldwide. Heat shock factors (Hsfs) play a central role in regulating plant responses to various stresses. In this study, the wheat heat shock factor gene TaHsfA2e-5D on chromosome 5D was isolated and functionally characterized, with the goal of investigating its role in responses to heat and drought stresses. Gene expression profiling showed that TaHsfA2e-5D was expressed constitutively in various wheat tissues, most highly in roots at the reproductive stage. The expression of TaHsfA2e-5D was highly up-regulated in wheat seedlings by heat, cold, drought, high salinity, and multiple phytohormones. The TaHsfA2e-5D protein was localized in the nucleus and showed a transcriptional activation activity. Ectopic expression of the TaHsfA2e-5D in yeast exhibited improved thermotolerance. Overexpression of the TaHsfA2e-5D in Arabidopsis results in enhanced tolerance to heat and drought stresses. Furthermore, RT-qPCR analyses revealed that TaHsfA2e-5D functions through increasing the expression of Hsp genes and other stress-related genes, including APX2 and GolS1. Collectively, these results suggest that TaHsfA2e-5D functions as a positive regulator of plants’ responses to heat and drought stresses, which may be of great significance for understanding and improving environmental stress tolerance in crops.

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Section: Introductionmentioning

confidence: 99%

Characterization of the Wheat Heat Shock Factor TaHsfA2e-5D Conferring Heat and Drought Tolerance in Arabidopsis

Miao

et al. 2022

IJMS

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“…In the climate change scenario, lignocellulosic biorefinery could be strongly impacted since climate change has been described to affect biomass growth, productivity, chemical composition, and soil microbial community [ 1 , 107 , 108 , 109 , 110 ] ( Figure 5 ). Therefore, since the major feedstocks for lignocellulosic biorefinery are dedicated energy crops (e.g., switchgrass, Miscanthus giganteus , Guinea grass, energy cane, and others), or plant residues (e.g., sugarcane bagasse, corn (maize) stover, wheat straw, and others), climate change and the abiotic stress caused by them might significantly impact the production of cellulosic ethanol and other value-added commodities by reducing the yield and availability of these sources of biomass, along with changes in metabolic pathways.…”

Section: Challenges Of Biomass Utilization For Bioenergy In a Climate Change Scenariomentioning

confidence: 99%

“…Furthermore, recent evidence has shown that combined stresses might affect plant metabolism differently from isolated stress, showing unique responses [ 1 , 110 ]. As climate changes will be experienced as combined stresses, their effects under real field conditions must be studied.…”

Section: Challenges Of Biomass Utilization For Bioenergy In a Climate Change Scenariomentioning

confidence: 99%

“…Furthermore, if temperature increase in levels higher than optimum plant growth temperature, CO 2 enrichment becomes deleterious and can exacerbate the negative effects of elevated temperature since the stomatal closure induced by CO 2 contributes to elevating leaf temperature due to reduced evapotranspiration rates [114]. In this case, elevated temperature and CO 2 enrichment would result in lower maize yields [110,114]. Hatfield et al (2011) [113] concluded that future increases in temperature and CO 2 would result in a minimum of 3% decrease in maize under well-watered conditions.…”

Section: Challenges Of Biomass Utilization For Bioenergy In a Climate Change Scenariomentioning

confidence: 99%

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Challenges of Biomass Utilization for Bioenergy in a Climate Change Scenario

Freitas

Salgado

Alnoch

et al. 2021

Biology

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The climate changes expected for the next decades will expose plants to increasing occurrences of combined abiotic stresses, including drought, higher temperatures, and elevated CO2 atmospheric concentrations. These abiotic stresses have significant consequences on photosynthesis and other plants’ physiological processes and can lead to tolerance mechanisms that impact metabolism dynamics and limit plant productivity. Furthermore, due to the high carbohydrate content on the cell wall, plants represent a an essential source of lignocellulosic biomass for biofuels production. Thus, it is necessary to estimate their potential as feedstock for renewable energy production in future climate conditions since the synthesis of cell wall components seems to be affected by abiotic stresses. This review provides a brief overview of plant responses and the tolerance mechanisms applied in climate change scenarios that could impact its use as lignocellulosic biomass for bioenergy purposes. Important steps of biofuel production, which might influence the effects of climate change, besides biomass pretreatments and enzymatic biochemical conversions, are also discussed. We believe that this study may improve our understanding of the plant biological adaptations to combined abiotic stress and assist in the decision-making for selecting key agronomic crops that can be efficiently adapted to climate changes and applied in bioenergy production.

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“…Genomics-assisted breeding (GAB) allows to improve the germplasm [50]. Besides, multiple stress combinations can be studied [51]. Systems biology strategies are particularly interesting, implementing holistic approaches in these scenarios, integrating different -omics and bioinformatics tools [52].…”

Section: Functional Genomicsmentioning

confidence: 99%

Analyzing Modern Biomolecules: The Revolution of Nucleic-Acid Sequencing – Review

et al. 2021

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Recent developments have revolutionized the study of biomolecules. Among them are molecular markers, amplification and sequencing of nucleic acids. The latter is classified into three generations. The first allows to sequence small DNA fragments. The second one increases throughput, reducing turnaround and pricing, and is therefore more convenient to sequence full genomes and transcriptomes. The third generation is currently pushing technology to its limits, being able to sequence single molecules, without previous amplification, which was previously impossible. Besides, this represents a new revolution, allowing researchers to directly sequence RNA without previous retrotranscription. These technologies are having a significant impact on different areas, such as medicine, agronomy, ecology and biotechnology. Additionally, the study of biomolecules is revealing interesting evolutionary information. That includes deciphering what makes us human, including phenomena like non-coding RNA expansion. All this is redefining the concept of gene and transcript. Basic analyses and applications are now facilitated with new genome editing tools, such as CRISPR. All these developments, in general, and nucleic-acid sequencing, in particular, are opening a new exciting era of biomolecule analyses and applications, including personalized medicine, and diagnosis and prevention of diseases for humans and other animals.

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Elucidating the Response of Crop Plants towards Individual, Combined and Sequentially Occurring Abiotic Stresses

Cited by 45 publications

References 208 publications

Characterization of the Wheat Heat Shock Factor TaHsfA2e-5D Conferring Heat and Drought Tolerance in Arabidopsis

Characterization of the Wheat Heat Shock Factor TaHsfA2e-5D Conferring Heat and Drought Tolerance in Arabidopsis

Challenges of Biomass Utilization for Bioenergy in a Climate Change Scenario

Analyzing Modern Biomolecules: The Revolution of Nucleic-Acid Sequencing – Review

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