Current views of drought research: experimental methods, adaptation mechanisms and regulatory strategies

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Апрель 4, 2024

Drought stress is one of the most important abiotic stresses which causes many yield losses every year. This paper presents a comprehensive review recent advances in international drought research. First, main types and commonly used methods current experiment were introduced, advantages disadvantages each method evaluated. Second, response plants to was reviewed from aspects morphology, physiology, biochemistry molecular progression. Then, potential improve resistance emerging technologies introduced. Finally, research dilemma future development direction summarized. In summary, this provides insights into different perspectives theoretical reference for scholars engaged about engage

Язык: Английский

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A newly isolated Bacillus pumilus strain SH-9 modulates response to drought stress in soybean via endogenous phytohormones and gene expression (Daegu, South Korea)

Plant Stress, Год журнала: 2023, Номер 10, С. 100279 - 100279

Опубликована: Ноя. 2, 2023

Drought stress hampers plant growth and productivity. Some microorganisms mitigate in plants; however, the molecular mechanism by which they interact with plants mitigating remains unknown. This study aimed to determine growth–promoting rhizobacteria modulate drought soybean. Results indicated that B. pumilus SH-9 (SH-9) produced indole acetic acid siderophore, had capacity for phosphate solubilization. The test polyethylene glycol 6000 (PEG) tolerance, showed could withstand high PEG concentration (up 30%). isolate was identified a strain using 16s ribosomal DNA gene sequence. Inoculation of soybeans enhanced soybean biomass 20%, even under stress. due reduction endogenous phytohormone (abscisic acid) upregulation antioxidant defense system (SOD, POD, APX, GSH) SH-9. Furthermore, transcription factors GmDREB2, GmbZIP1, GmNCED3 were involved. also improved physio-morphological characteristics such as biomass, chlorophyll, seedling length, relative water contents stressed plant. Overall, findings this enhances promoting solubilization, exopolysaccharides. We, therefore, conclude is drought-tolerant variant can improve via modulation expression gene, profile.

Язык: Английский

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Effects of Supplemental Lighting on Flavonoid and Anthocyanin Biosynthesis in Strawberry Flesh Revealed via Metabolome and Transcriptome Co-Analysis

Plants, Год журнала: 2024, Номер 13(8), С. 1070 - 1070

Опубликована: Апрель 10, 2024

The spectral composition of light influences the biosynthesis flavonoids in many plants. However, detailed and anthocyanins molecular basis for their strawberry fruits under two light-quality treatments, red supplemented with blue (RB) ultraviolet B (UVB) irradiation, remain unclear. In this study, content was significantly increased RB UVB, respectively. UVB dramatically higher than that irradiated light, a total 518 metabolites were detected by means LC-MS/MS analysis. Among them, 18 phenolic acids, 23 flavonoids, 8 differentially accumulated red/blue compared to 30 46 9 UVB. major genes associated anthocyanins, including structural transcription factors (TFs), expressed as determined through RNA-seq data A correlation test transcriptome metabolite profiling showed expression patterns most pathway closely correlated differential accumulation anthocyanins. Two TFs, bZIP (FvH4_2g36400) AP2 (FvH4_1g21210), induced respectively, exhibited similar genes, which six eight These results indicated these TFs regulated fruit provide systematic comprehensive understanding

Язык: Английский

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Polyvinyl chloride and polybutylene adipate microplastics affect peanut and rhizobium symbiosis by interfering with multiple metabolic pathways

Journal of Hazardous Materials, Год журнала: 2024, Номер 475, С. 134897 - 134897

Опубликована: Июнь 12, 2024

Язык: Английский

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Silicon Nano-Fertilizer-Enhanced Soybean Resilience and Yield Under Drought Stress

Plants, Год журнала: 2025, Номер 14(5), С. 751 - 751

Опубликована: Март 1, 2025

Drought stress threatens agriculture and food security, significantly impacting soybean yield physiology. Despite the documented role of nanosilica (n-SiO2) in enhancing crop resilience, its full growth-cycle effects on soybeans under drought remain elusive. This study aimed to evaluate efficacy n-SiO2 at a concentration 100 mg kg−1 soil medium for tolerance through life-cycle assessment greenhouse setup. To elucidate mechanisms action, key physiological, biochemical, parameters were systematically measured. The results demonstrated that increased silicon content shoots roots, restored osmotic balance by reducing Na+/K+ ratio 40%, alleviated proline accumulation 35% compared control, thereby mitigating stress. Enzyme activities related nitrogen metabolism, including nitrate reductase (NR) glutamine synthetase (GS), improved 25–30% treatment control. Additionally, antioxidant activity, superoxide dismutase (SOD) levels, 15%, while oxidative markers such as hydrogen peroxide (H2O2) malondialdehyde (MDA) decreased 20–25% Furthermore, components enhanced, with pod number grain weight increasing 15% 20%, respectively, untreated plants conditions. These findings suggest effectively enhances resilience reinforcing physiological metabolic processes critical growth yield. underscores potential sustainable amendment support productivity drought-prone environments, contributing more resilient agricultural systems amidst climate variability. Future research should focus conducting large-scale field trials effectiveness cost-efficiency applications diverse environmental conditions assess practical viability agriculture.

Язык: Английский

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Effects of DA-6 and MC on the growth, physiology, and yield characteristics of soybean

BMC Plant Biology, Год журнала: 2025, Номер 25(1)

Опубликована: Март 10, 2025

As a grain and oil crop, soybean presents much lower yield than other staple crops. However, crop yields can be improved by applying modern agricultural technology, such as diethylaminoethyl hexanoate (DA-6) mepiquat chloride (MC), which are important plant-growth regulators that substantially affect growth yield. This study examined the effects of DA-6 (30, 60, or 90 mg L−1) MC (100, 200, 400 on growth, development, root structure, photosynthetic physiology, osmotic regulation, via field pot experiments. The results showed effectively promoted increased parameters plant height, leaf area, dry weight in different stages 21.0%, 18.7%, 66.4%, respectively. In contrast, inhibited parameters, decreasing up to 15.7%, 11.9%, 10.1%, Both development increasing weight, length, surface volume, tip number, branch cross number. terms DA-6, steady-state fluorescence (Fs), maximum (Fm'), system II (Phi2), soluble protein contents, with increases 27.7% 28.1% at periods, sugar contents 38.2% 58.3%. Regarding characteristics, considerably yield, 100-grain number effective pods. two- three-seed pods, whereas one-, two-, performed better DA-6; however, they exerted two varieties concentrations. was most 30–60 L−1, while 100–200 L−1. revealed morphology, characteristics appropriate concentrations for application productions. Thus, these findings provide guidance rational high-yield cultivation stress resistance.

Язык: Английский

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Effects of mepiquat chloride (MC) spraying on the lodging resistance and yield characteristics of soybean

International Agrophysics, Год журнала: 2025, Номер 39(2), С. 191 - 201

Опубликована: Апрель 1, 2025

Язык: Английский

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Physiological Effects and Economic Impact of Plant Growth Regulator Applications on Soybean

Agronomy, Год журнала: 2025, Номер 15(4), С. 965 - 965

Опубликована: Апрель 16, 2025

Soybean production in the southern Great Plains (SGP) faces challenges due to yield-limiting factors, including high temperatures and inconsistent precipitation. These conditions can lead excess vegetative growth, similar what occurs crops like cotton. Management strategies utilizing plant growth regulators (PGRs) have been applied control this excessive yet there is limited information on methods mitigate soybeans through modifications apical meristem. Field trials conducted 2022 2023 investigated effects of altering using Ascend SL, Compact, Cobra, Cygin Pro, physical removal, with treatments at V4 R2 stages. This study highlights significance customized application enhance profitability under diverse environmental conditions. Pro demonstrate improving yield stability adverse climatic Both applications Compact produced relatively stable yields across site years, while Cobra removal necessitate careful consideration timing minimize losses. Further research essential optimize these management for soybean SGP.

Язык: Английский

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The application potential of mepiquat chloride in soybean: improvement of yield characteristics and drought resistance

BMC Plant Biology, Год журнала: 2024, Номер 24(1)

Опубликована: Апрель 23, 2024

Abstract Background Drought can result in yield losses, the application of plant growth regulators is an effective measure to improve drought resistance and yield. The objective study was explore potential mepiquat chloride (MC) regulating soybean resistance. Methods In this study, a three-year field experiment designed combined with experiments popularized varieties during 2021–2022 drought-resistant drought-sensitive were selected, planted 2023. Results MC increased HN84 HN87 for two consecutive years from 2021 2022 improved their physiological characteristics under conditions. Under M200 treatment, by 6.93% 9.46%, 11.11% 15.72%. Different concentrations have different effects on soybeans. maximum increase SOD, POD proline M400 treatment reached 71.92%, 63.26% 71.54%, respectively; 21.96%, 93.49% 40.45%, respectively. 2023, foliar HN44 HN65 drought-stress On eighth day compared leaf root dry weight M100 17.91% 32.76%, leaves roots 20.74% 29.29% also reduced malondialdehyde (MDA) content, decreased antioxidant enzyme activity content. addition, chlorophyll fluorescence parameters (Fs, Fv/Fm, YII, SPAD). field, height significantly, increased, number two-grain three-grain pods stem length at bottom middle induction. Conclusions 100–200 mg/L effectively This provided support rational production.

Язык: Английский

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Joint transcriptomic and metabolomic analysis provides new insights into drought resistance in watermelon (Citrullus lanatus)

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Май 3, 2024

Introduction Watermelon is an annual vine of the family Cucurbitaceae . plants produce a fruit that people love and have important nutritional economic value. With global warming deterioration ecological environment, abiotic stresses, including drought, become factors impact yield quality watermelon plants. Previous research on drought resistance has included analyzing homologous genes based known drought-responsive pathways in other species. Methods However, identifying key involved through high-throughput omics methods particularly important. In this study, RNA-seq metabolomic analysis were performed at five time points (0 h, 1 6 12 h 24 h) before after stress. Results Transcriptomic revealed 7829 differentially expressed (DEGs) points. The DEGs grouped into clusters using k-means clustering algorithm. functional category for each cluster was annotated Kyoto Encyclopedia Genes Genomes (KEGG) database; different associated with A total 949 metabolites divided 10 categories, lipids lipid-like molecules accounting most metabolites. Differential expression 22 regulated (DRMs) among Through joint metabolome data, 6-h period identified as critical resistance, starch sucrose metabolism, plant hormone signal transduction photosynthesis regulatory resistance. addition, 15 candidate combined weighted correlation network (WGCNA). Four these encode transcription factors, bHLH ( Cla97C03G068160 ), MYB Cla97C01G002440 HSP Cla97C02G033390 ) GRF Cla97C02G042620 one gene ABA pathway, SnRK2-4 Cla97C10G186750 GP-2 Cla97C05G105810 which metabolism pathway. Discussion summary, our study provides theoretical basis elucidating molecular mechanisms underlying new genetic resources crop.

Язык: Английский

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