The effect of abiotic stresses on plant C:N:P homeostasis and their mitigation by silicon

The Crop Journal, Год журнала: 2024, Номер 12(2), С. 340 - 353

Опубликована: Янв. 10, 2024

In crop plants, various environmental stresses affect the balance of carbon, nitrogen, and phosphorus (C:N:P), leading to biochemical physiological alterations reductions in yield. Silicon (Si) is a beneficial element that alleviates plant stress. Most studies involving silicon have focused on responses, such as improvements photosynthetic processes, water use efficiency, antioxidant defense systems. But recent research suggests stressed plants facing either limited or excessive resources (water, light, nutrients, toxic elements), strategically employ Si maintain C:N:P homeostasis, thereby minimizing biomass losses. Understanding role mitigating impact abiotic by regulating homeostasis holds great potential for advancing sustainable agricultural practices production. This review presents advances characterizing influence well preserving equilibrium attenuating biological damage associated with It underscores effects sustaining increasing yield via improved nutritional efficiency stress mitigation.

Язык: Английский

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Analysis of full length transcriptome and resistance characteristics of Atraphaxis bracteata under drought

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 4, 2025

Abstract Drought is one of the main environmental factors affecting plant survival and growth. Atraphaxis bracteata a common desert mainly utilized in afforestation desertification control. This study analyzed morphological, physiological molecular regulatory characteristics different organs A. under drought stress. The results showed that with intensification stress, height, root length leaf area seedlings decreased, while content osmotic substances antioxidant enzyme activity increased. Furthermore, total 63 907 non-redundant transcript sequences, which 55 574 transcripts were annotated, 248 178 FLNC 107 112 high-quality consistent sequences 291 314 CCSs obtained from Iso-Seq. Meanwhile, 2 039 AS events, 22 919 SSR, 40 404 CDS 5 902 lncRNA also obtained. RNA-Seq analysis revealed 821, 3 532 DETs identified roots, stems leaves, respectively, had significantly enrichment “circadian rhythm-plant” “starch sucrose metabolism” pathway. These would be great significance for further research on stress resistance these function.

Язык: Английский

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Adaptive protein evolution through length variation of short tandem repeats in Arabidopsis

Science Advances, Год журнала: 2023, Номер 9(12)

Опубликована: Март 22, 2023

Intrinsically disordered protein regions are of high importance for biotic and abiotic stress responses in plants. Tracts identical amino acids accumulate these can vary length over generations because expansions retractions short tandem repeats at the genomic level. However, little attention has been paid to what extent variation is shaped by natural selection. By environmental association analysis on 2514 variable tracts 770 whole-genome sequenced Arabidopsis thaliana, we show that glutamine asparagine acid homopolymers, as well interaction hotspots, correlate with local bioclimatic habitat. We determined experimentally promoter activity a light-stress gene depended polyglutamine variants transcription factor. Our results variations affect function likely adaptive. Length modulating global scale implications understanding evolution eco-evolutionary biology.

Язык: Английский

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Low light intensity elongates period and defers peak time of photosynthesis: a computational approach to circadian-clock-controlled photosynthesis in tomato

Horticulture Research, Год журнала: 2023, Номер 10(6)

Опубликована: Апрель 25, 2023

Photosynthesis is involved in the essential process of transforming light energy into chemical energy. Although interaction between photosynthesis and circadian clock has been confirmed, mechanism how intensity affects through remains unclear. Here, we propose a first computational model for circadian-clock-controlled photosynthesis, which consists light-sensitive protein P, core oscillator, photosynthetic genes, parameters photosynthesis. The were determined by minimizing cost function ( [Formula: see text]), defined errors expression levels, periods, phases genes

Язык: Английский

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Regulatory Mechanisms of Heat Stress Response and Thermomorphogenesis in Plants

Plants, Год журнала: 2022, Номер 11(24), С. 3410 - 3410

Опубликована: Дек. 7, 2022

As worldwide warming intensifies, the average temperature of earth continues to increase. Temperature is a key factor for growth and development all organisms governs distribution seasonal behavior plants. High temperatures lead various biochemical, physiological, morphological changes in plants threaten plant productivity. sessile organisms, are subjected hostile environmental factors forced change their cellular state architecture successfully deal with damage they suffer. Therefore, have evolved multiple strategies cope an abnormal rise temperature. There two main mechanisms by which respond elevated temperatures. One heat stress response, activated under extremely high temperatures; other thermomorphogenesis moderately temperatures, below heat-stress range. In this review, we summarize recent progress study these important heat-responsive molecular regulatory pathways mediated, respectively, Heat Shock Transcription Factor (HSF)–Heat Protein (HSP) pathway PHYTOCHROME INTER-ACTING FACTOR 4 (PIF4) elucidate genes involved provide comprehensive data researchers studying response. We also discuss future perspectives field.

Язык: Английский

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Soybean Calmodulin-Binding Transcription Activators, GmCAMTA2 and GmCAMTA8, Coordinate the Circadian Regulation of Developmental Processes and Drought Stress Responses

International Journal of Molecular Sciences, Год журнала: 2023, Номер 24(14), С. 11477 - 11477

Опубликована: Июль 14, 2023

The calmodulin-binding transcription activators (CAMTAs) mediate transcriptional regulation of development, growth, and responses to various environmental stresses in plants. To understand the biological roles soybean

Язык: Английский

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Systems genomics of salinity stress response in rice

Опубликована: Фев. 7, 2025

Populations can adapt to stressful environments through changes in gene expression. However, the fitness effect of expression mediating stress response and adaptation remains largely unexplored. Here, we use an integrative field dataset obtained from 780 plants Oryza sativa ssp . indica (rice) grown a experiment under normal or moderate salt conditions examine selection evolution variation salinity conditions. We find that induces increased selective pressure on Further, show trans -eQTLs rather than cis are primarily associated with rice’s stress, potentially via few master-regulators. Importantly, contrary expectations, - reinforcement is more common compensation which may be reflective rice diversification subsequent domestication. further identify genetic fixation as likely mechanism underlying this compensation/reinforcement. Additionally, balancing purifying selection, respectively, giving us insights into evolutionary dynamics variation. By examining genomic, transcriptomic, phenotypic across population, gain molecular landscape adaptive responses, relevant for other crops stresses.

Язык: Английский

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Systems genomics of salinity stress response in rice

eLife, Год журнала: 2025, Номер 13

Опубликована: Фев. 20, 2025

Populations can adapt to stressful environments through changes in gene expression. However, the fitness effect of expression mediating stress response and adaptation remains largely unexplored. Here, we use an integrative field dataset obtained from 780 plants Oryza sativa ssp. indica (rice) grown a experiment under normal or moderate salt conditions examine selection evolution variation salinity conditions. We find that induces increased selective pressure on Further, show trans -eQTLs rather than cis are primarily associated with rice’s stress, potentially via few master-regulators. Importantly, contrary expectations, cis-trans reinforcement is more common compensation which may be reflective rice diversification subsequent domestication. further identify genetic fixation as likely mechanism underlying this compensation/reinforcement. Additionally, - balancing purifying selection, respectively, giving us insights into evolutionary dynamics variation. By examining genomic, transcriptomic, phenotypic across population, gain molecular landscape adaptive responses, relevant for other crops stresses.

Язык: Английский

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Circadian-Mediated Regulation of Growth, Chloroplast Proteome, Targeted Metabolomics and Gene Regulatory Network in Spinacia oleracea Under Drought Stress

Agriculture, Год журнала: 2025, Номер 15(5), С. 522 - 522

Опубликована: Фев. 28, 2025

The paramount objectives of this study were to analyze the beneficial role circadian clock in alleviating drought stress an essential green leafy horticultural crop, spinach (Spinacia oleracea), and attain knowledge on drought-stress adaptation for crop productivity. From dawn dusk, a core oscillator-based defense mechanism was noticed relation strength chloroplast proteome transcriptome, hormone fused it along with molecular physiology using genotypes “Malav Jyoti” “Delhi Green”. A photo-periodic rhythmicity containing 4 h time interval (morning–evening loop) 12 exhibited under drought-stressed (day-5) re-irrigated (day-10) conditions. oscillator controlled 70% major part growth physiological measures such as biomass, plant height, leaf-relative water content, shoot–root ratio stress. Contrarily, resulted upregulation antioxidative activities markers, whereas diversified maintained case state at certain rhythmic intervals clock. parameters we examined, net photosynthesis, transpiration, stomatal conductance, enzymes, by showing 80–90% improvements found plants when they re-watered after based their oscillations. Based results, 10 a.m. 2 p.m. disclosed be times controlling Moreover, extensive gene expression analysis clock-based genes (CCA1, LHY, TOC1, PRR3, PRR5, PRR7, PRR9, RVE8) drought-responsive (DREB1, DREB2, PIP1) depicted necessity Hence, findings our allowed intense understanding rhythms terms morning–evening loop, which is line survival rate occurs altering cellular ROS-scavenging mechanisms, protein profiles, regulation, metabolite concentrations.

Язык: Английский

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MsLHY is an active regulator of cold resistance in alfalfa (Medicago sativa L.)

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Май 1, 2025

Low-temperature stress is a major environmental factor that limits the yield, quality, and geographical distribution of forage crops restricts development industry. As core component plant circadian clocks, Late Elongated Hypocotyl (LHY) plays crucial role in regulating rhythms responses to abiotic stress. However, molecular mechanism by which LHY regulates cold tolerance alfalfa has not been reported. In this study, MsLHY, 2,235 bp length encodes 744 amino acids, was isolated from alfalfa. MsLHY highly expressed roots stems significantly induced low temperature. Transgenic MsLHY-overexpressing (OE) RNAi plants were obtained via Agrobacterium-mediated transformation. Under low-temperature stress, OE presented reduced reactive oxygen species accumulation more osmotic regulatory substances, as well greater antioxidant enzyme activity, combat Conversely, trends opposite those plants. Furthermore, under overexpression upregulated expression cold-responsive genes MsICE1, MsCBF1, MsCOR15A, MsCML10, antioxidant-synthesizing MsSOD1 MsCAT1, thereby increasing transgenic These results suggest an important

Язык: Английский

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