Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: Sept. 9, 2022

Due to global climate change, abiotic stresses are affecting plant growth, productivity, and the quality of cultivated crops. Stressful conditions disrupt physiological activities suppress defensive mechanisms, resulting in stress-sensitive plants. Consequently, plants implement various endogenous strategies, including hormone biosynthesis (e.g., abscisic acid, jasmonic salicylic brassinosteroids, indole-3-acetic cytokinins, ethylene, gibberellic strigolactones) withstand stress conditions. Combined or single disrupts normal transportation solutes, causes electron leakage, triggers reactive oxygen species (ROS) production, creating oxidative Several enzymatic non-enzymatic defense systems marshal a plant’s antioxidant defenses. While responses protective role system have been well-documented recent investigations, interrelationships among hormones, neurotransmitters (NTs, such as serotonin, melatonin, dopamine, acetylcholine, γ-aminobutyric acid), defenses not well explained. Thus, this review discusses advances transgenic metabolic developments, potential interaction hormones with NTs response tolerance mechanisms. Furthermore, we discuss current challenges future directions (transgenic breeding genome editing) for improvement using modern molecular tools. The involved regulating systems, networks, abiotic-induced also discussed.

Language: Английский

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Assessment of proline function in higher plants under extreme temperatures

Plant Biology, Journal Year: 2023, Volume and Issue: 25(3), P. 379 - 395

Published: Feb. 7, 2023

Climate change and abiotic stress factors are key players in crop losses worldwide. Among which, extreme temperatures (heat cold) disturb plant growth development, reduce productivity and, severe cases, lead to death. Plants have developed numerous strategies mitigate the detrimental impact of temperature stress. Exposure leads accumulation various metabolites, e.g. sugars, sugar alcohols, organic acids amino acids. accumulate acid 'proline' response several stresses, including Proline abundance may result from de novo synthesis, hydrolysis proteins, reduced utilization or degradation. also tolerance by maintaining osmotic balance (still controversial), cell turgidity indirectly modulating metabolism reactive oxygen species. Furthermore, crosstalk proline with other osmoprotectants signalling molecules, glycine betaine, abscisic acid, nitric oxide, hydrogen sulfide, soluble helps strengthen protective mechanisms stressful environments. Development less temperature-responsive cultivars can be achieved manipulating biosynthesis through genetic engineering. This review presents an overview responses outline under such temperatures. The exogenous application as a molecule is presented. interaction molecules discussed. Finally, potential engineering proline-related genes explained develop 'temperature-smart' plants. In short, promise ways forward for developing future

Language: Английский

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Burning questions for a warming and changing world: 15 unknowns in plant abiotic stress

The Plant Cell, Journal Year: 2022, Volume and Issue: 35(1), P. 67 - 108

Published: Aug. 26, 2022

We present unresolved questions in plant abiotic stress biology as posed by 15 research groups with expertise spanning eco-physiology to cell and molecular biology. Common themes of these include the need better understand how plants detect water availability, temperature, salinity, rising carbon dioxide (CO2) levels; environmental signals interface endogenous signaling development (e.g. circadian clock flowering time); this integrated controls downstream responses stomatal regulation, proline metabolism, growth versus defense balance). The plasma membrane comes up frequently a site key transport events mechanosensing lipid-derived signaling, aquaporins). Adaptation extremes CO2 affects hydraulic architecture transpiration, well root shoot morphology, ways not fully understood. Environmental adaptation involves tradeoffs that limit ecological distribution crop resilience face changing increasingly unpredictable environments. Exploration diversity within among species can help us know which represent fundamental limits ones be circumvented bringing new trait combinations together. Better defining what constitutes beneficial resistance different contexts making connections between genes phenotypes, laboratory field observations, are overarching challenges.

Language: Английский

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Multi-Omics Pipeline and Omics-Integration Approach to Decipher Plant’s Abiotic Stress Tolerance Responses

Genes, Journal Year: 2023, Volume and Issue: 14(6), P. 1281 - 1281

Published: June 16, 2023

The present day's ongoing global warming and climate change adversely affect plants through imposing environmental (abiotic) stresses disease pressure. major abiotic factors such as drought, heat, cold, salinity, etc., hamper a plant's innate growth development, resulting in reduced yield quality, with the possibility of undesired traits. In 21st century, advent high-throughput sequencing tools, state-of-the-art biotechnological techniques bioinformatic analyzing pipelines led to easy characterization plant traits for stress response tolerance mechanisms by applying 'omics' toolbox. Panomics pipeline including genomics, transcriptomics, proteomics, metabolomics, epigenomics, proteogenomics, interactomics, ionomics, phenomics, have become very handy nowadays. This is important produce climate-smart future crops proper understanding molecular responses genes, transcripts, proteins, epigenome, cellular metabolic circuits resultant phenotype. Instead mono-omics, two or more (hence 'multi-omics') integrated-omics approaches can decipher well. Multi-omics-characterized be used potent genetic resources incorporate into breeding program. For practical utility crop improvement, multi-omics particular combined genome-assisted (GAB) being pyramided improved yield, food quality associated agronomic open new era omics-assisted breeding. Thus, together are able processes, biomarkers, targets engineering, regulatory networks precision agriculture solutions crop's variable ensure security under changing circumstances.

Language: Английский

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Gibberellic Acid: A Versatile Regulator of Plant Growth, Development and Stress Responses

Journal of Plant Growth Regulation, Journal Year: 2023, Volume and Issue: 42(12), P. 7352 - 7373

Published: June 6, 2023

Language: Английский

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A Review on the Role of Endophytes and Plant Growth Promoting Rhizobacteria in Mitigating Heat Stress in Plants

Microorganisms, Journal Year: 2022, Volume and Issue: 10(7), P. 1286 - 1286

Published: June 24, 2022

Among abiotic stresses, heat stress is described as one of the major limiting factors crop growth worldwide, high temperatures elicit a series physiological, molecular, and biochemical cascade events that ultimately result in reduced yield. There growing interest among researchers use beneficial microorganisms. Intricate highly complex interactions between plants microbes alleviation stress. Plant–microbe are mediated by production phytohormones, siderophores, gene expression, osmolytes, volatile compounds plants. Their interaction improves antioxidant activity accumulation compatible osmolytes such proline, glycine betaine, soluble sugar, trehalose, enriches nutrient status stressed Therefore, this review aims to discuss response understand mechanisms microbe-mediated on physio-molecular basis. This indicates have great potential enhance protection from plant Owing metabolic diversity microorganisms, they can be useful mitigating In regard, microorganisms do not present new threats ecological systems. Overall, it expected continued research tolerance will enable technology used an ecofriendly tool for sustainable agronomy.

Language: Английский

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Stress memory and its regulation in plants experiencing recurrent drought conditions

Theoretical and Applied Genetics, Journal Year: 2023, Volume and Issue: 136(2)

Published: Feb. 1, 2023

Developing stress-tolerant plants continues to be the goal of breeders due their realized yields and stability. Plant responses drought have been studied in many different plant species, but occurrence stress memory as well potential mechanisms for regulation is not yet described. It has observed that hold on past events a way adjusts response new challenges without altering genetic constitution. This ability could enable training face future increase frequency intensity. A better understanding memory-associated leading alteration gene expression how they link physiological, biochemical, metabolomic morphological changes would initiate diverse opportunities breed genotypes through molecular breeding or biotechnological approaches. In this perspective, review discusses types gives an overall view using general examples. Further, focusing stress, we demonstrate coordinated epigenetic control mechanisms, associated transcription at genome level integrated biochemical physiological cellular following recurrent exposures. Indeed, alterations specific networks facilitate acclimation survival individual during repeated stress.

Language: Английский

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Trehalose: A sugar molecule involved in temperature stress management in plants

The Crop Journal, Journal Year: 2023, Volume and Issue: 12(1), P. 1 - 16

Published: Oct. 29, 2023

Trehalose (Tre) is a non-reducing disaccharide found in many species, including bacteria, fungi, invertebrates, yeast, and even plants, where it acts as an osmoprotectant, energy source, or protein/membrane protector. Despite relatively small amounts Tre concentrations increase following exposure to abiotic stressors. Trehalose-6-phosphate, precursor of Tre, has regulatory functions sugar metabolism, crop production, stress tolerance. Among the various stresses, temperature extremes (heat cold stress) are anticipated impact production worldwide due ongoing climate changes. Applying can mitigate negative physiological, metabolic, molecular responses triggered by stress. also interacts with other sugars, osmoprotectants, amino acids, phytohormones regulate metabolic reprogramming that underpins adaptation. Transformed plants expressing Tre-synthesis genes accumulate show improved Genome-wide studies Tre-encoding suggest roles plant growth, development, This review discusses mitigating stress—highlighting genetic engineering approaches modify crosstalk, interactions molecules—and in-silico for identifying novel diverse species. We consider how this knowledge be used develop temperature-resilient crops essential sustainable agriculture.

Language: Английский

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Long Non-Coding RNAs of Plants in Response to Abiotic Stresses and Their Regulating Roles in Promoting Environmental Adaption

Cells, Journal Year: 2023, Volume and Issue: 12(5), P. 729 - 729

Published: Feb. 24, 2023

Abiotic stresses triggered by climate change and human activity cause substantial agricultural environmental problems which hamper plant growth. Plants have evolved sophisticated mechanisms in response to abiotic stresses, such as stress perception, epigenetic modification, regulation of transcription translation. Over the past decade, a large body literature has revealed various regulatory roles long non-coding RNAs (lncRNAs) their irreplaceable functions adaptation. LncRNAs are recognized class ncRNAs that longer than 200 nucleotides, influencing variety biological processes. In this review, we mainly focused on recent progress lncRNAs, outlining features, evolution, lncRNAs drought, low or high temperature, salt, heavy metal stress. The approaches characterize function how they regulate responses were further reviewed. Moreover, discuss accumulating discoveries regarding memory well. present review provides updated information directions for us potential future.

Language: Английский

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Transcriptomics, proteomics, and metabolomics interventions prompt crop improvement against metal(loid) toxicity

Plant Cell Reports, Journal Year: 2024, Volume and Issue: 43(3)

Published: Feb. 27, 2024

The escalating challenges posed by metal(loid) toxicity in agricultural ecosystems, exacerbated rapid climate change and anthropogenic pressures, demand urgent attention. Soil contamination is a critical issue because it significantly impacts crop productivity. widespread threat of can jeopardize global food security due to contaminated supplies pose environmental risks, contributing soil water pollution thus impacting the whole ecosystem. In this context, plants have evolved complex mechanisms combat stress. Amid array innovative approaches, omics, notably transcriptomics, proteomics, metabolomics, emerged as transformative tools, shedding light on genes, proteins, key metabolites involved stress responses tolerance mechanisms. These identified candidates hold promise for developing high-yielding crops with desirable agronomic traits. Computational biology tools like bioinformatics, biological databases, analytical pipelines support these omics approaches harnessing diverse information facilitating mapping genotype-to-phenotype relationships under conditions. This review explores: (1) multifaceted strategies that use adapt their environment; (2) latest findings metal(loid)-mediated metabolomics studies across various plant species; (3) integration data artificial intelligence high-throughput phenotyping; (4) bioinformatics single and/or multi-omics integration; (5) insights into adaptations future outlooks; (6) capacity advances creating sustainable resilient thrive metal(loid)-contaminated environments.

Language: Английский

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