CTB6 Confers Cold Tolerance at the Booting Stage by Maintaining Tapetum Development in Rice

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Abstract Rice is highly sensitive to cold stress, particularly at the booting stage, which significantly threatens rice production. In this study, we cloned a gene, CTB6 , encoding lipid transfer protein involved in tolerance stage rice, based on our previous fine‐mapped quantitative trait locus (QTL) qCTB10‐2 . mainly expressed tapetum and young microspores of anther. interacts with catalases (CATs) maintain their stability, thereby scavenging reactive oxygen species (ROS) accumulation anthers facilitating development under stress conditions. Additionally, has lipid‐binding ability affects content regulate stage. Haplotype analysis promoter activity assay revealed specific single nucleotide polymorphism (SNP)‐489 variation enhances its expression results improved Hap1‐K varieties. The near‐isogenic line (NIL) exhibited enhanced no significant effects other agronomic traits. Our findings uncover natural for provide new genetic resources breeding rice.

Language: Английский

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Flavonols improve tomato pollen thermotolerance during germination and tube elongation by maintaining reactive oxygen species homeostasis

The Plant Cell, Journal Year: 2024, Volume and Issue: 36(10), P. 4511 - 4534

Published: Aug. 5, 2024

Elevated temperatures impair pollen performance and reproductive success, resulting in lower crop yields. The tomato (Solanum lycopersicum) anthocyanin reduced (are) mutant harbors a mutation FLAVANONE 3-HYDROXYLASE (F3H), impaired flavonol antioxidant biosynthesis. are has seed set relative to the VF36 parental line, phenotypes that accentuated at elevated temperatures. Transformation of with wild-type F3H gene, or chemical complementation flavonols, prevented temperature-dependent reactive oxygen species (ROS) accumulation restored viability, germination, tube elongation levels. Overexpression temperature-driven ROS increases performance, revealing biosynthesis promotes thermotolerance. Although stigmas had levels, growth tubes was similarly both pistils. RNA-seq performed optimal stress are, VF36, overexpression line multiple timepoints across elongation. number differentially expressed genes increased over time under all genotypes, greatest are. These findings suggest potential agricultural interventions combat negative effects heat-induced lead failure.

Language: Английский

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Plant hormesis: the energy aspect of low and high-dose stresses

Plant Stress, Journal Year: 2024, Volume and Issue: 14, P. 100628 - 100628

Published: Oct. 9, 2024

Language: Английский

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Trade-Off Between Enzymatic Antioxidant Defense and Accumulation of Organic Metabolite Affects Salt Tolerance of White Clover Associated with Redox, Water, and Metabolic Homeostases

Plants, Journal Year: 2025, Volume and Issue: 14(2), P. 145 - 145

Published: Jan. 7, 2025

White clover (Trifolium repens) is an excellent perennial cold-season ground-cover plant for municipal landscaping and urban greening. It is, therefore, widely distributed utilized throughout the world. However, poor salt tolerance greatly limits its promotion application. This study aims to investigate difference in mechanism of relation osmotic adjustment, enzymatic nonenzymatic antioxidant defenses, organic metabolites remodeling between salt-tolerant PI237292 (Trp004) salt-sensitive Korla (KL). Results demonstrated that stress significantly induced chlorophyll loss, water imbalance, accumulations malondialdehyde (MDA), hydrogen peroxide (H2O2), superoxide anion (O2.-), resulting reduced cell membrane stability two types white clovers. Trp004 maintained higher leaf relative content as well lower potential oxidative damage, compared with KL under stress. Although exhibited activities dismutase, peroxidase, catalase, ascorbate monodehydroasorbate reductase, dehydroascorbate glutathione reductase than response stress, ascorbic acid (ASA), dehydroascorbic (DHA), (GSH), disulfide (GSSG), ASA/DHA, GSH/GSSG were detected Trp004. These findings indicated a trade-off relationship enzymes antioxidants different genotypes adapting In addition, accumulated more acids (glycolic acid, succinic fumaric malic linolenic cis-sinapic acid), amino (serine, l-allothreonine, 4-aminobutyric sugars (tagatose, fructose, glucoheptose, cellobiose, melezitose), other (myo-inositol, arabitol, galactinol, cellobiotol, stigmasterol) when they suffered from same concentration duration helped maintain energy supply, reactive oxygen species homeostasis, cellular metabolic homeostasis regard can be used resource cultivating salinized soils.

Language: Английский

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Molecular and Physiological Responses of Plants that Enhance Cold Tolerance

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(3), P. 1157 - 1157

Published: Jan. 29, 2025

Low-temperature stress, including chilling and freezing injuries, significantly impacts plant growth in tropical temperate regions. Plants respond to cold stress by activating mechanisms that enhance tolerance, such as regulating photosynthesis, metabolism, protein pathways producing osmotic regulators antioxidants. Membrane stability is crucial, with cold-resistant plants exhibiting higher lipid unsaturation maintain fluidity normal metabolism. Low temperatures disrupt reactive oxygen species (ROS) leading oxidative damage, which mitigated antioxidant defenses. Hormonal regulation, involving ABA, auxin, gibberellins, others, further supports adaptation. also manage balance accumulating like proline sugars. Through complex regulatory pathways, the ICE1-CBF-COR cascade, optimize gene expression survive ensuring adaptability conditions. This study reviews recent advancements genetic engineering technologies aimed at enhancing resistance of agricultural crops. The goal provide insights for improving tolerance developing new cold-tolerant varieties.

Language: Английский

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Genetic and phenotypic responses of temperature-independent Hessian fly-resistant durum wheat to larval attack during heat stress

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: Feb. 17, 2025

Abstract Background Wheat production is increasingly challenged by the devastating damage caused insect pests. The advent of global warming further exacerbating this threat. Hessian fly ( Mayetiola destructor ), a dipteran gall midge, destructive pest host wheat Triticum aestivum ) having severe economic consequences. Planting cultivars harboring resistance genes most effective and economical management strategy. However, heat stress poses challenge to strategy, as elevated temperature often breaks down in wheat. Our prior study identified temperature-independent resistant T. turgidum (durum wheat) accessions that maintained when with an increased 30 °C. In study, we carried out follow-up characterization these durum lines highlight molecular components involved during or susceptibility following stress. Results Temperature-independent were greater than 70% multiple biotypes at At level, showed transcripts Hfr-1 , gene encoding antinutrient lectin, unlike heat-triggered susceptible susceptibility-associated biomarker significantly upregulated °C, resembling expression profile observed None differentially expressed Genes oxidative jasmonic acid pathways did not reveal any specific pattern attributed either larval feeding. Neutral red staining revealed limited cell wall permeability wheat, plants highly permeable similar line 20 Conclusions provided robust higher temperatures. These offer valuable resource for producers providing

Language: Английский

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Activation of ROS signaling molecule by AgNPs: molecular mechanisms in roses under abiotic stress, exploration of stress memory, and impact on root microbiota

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Language: Английский

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Integrative approaches to enhance reproductive resilience of crops for climate-proof agriculture

Plant Stress, Journal Year: 2024, Volume and Issue: unknown, P. 100704 - 100704

Published: Dec. 1, 2024

Language: Английский

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Enhancing floret persistence and bloom duration in gladiolus through foliar-applied calcium: a sustainable approach to floriculture

The Journal of Horticultural Science and Biotechnology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 14

Published: Jan. 11, 2025

Enhancing floret persistence and bloom duration in ornamental plants through foliar-applied calcium promotes sustainability by improving nutrient efficiency, reducing environmental impacts, conserving resources, boosting commercial value. This two-year study (2021–2022) evaluated the effects of foliar application on gladiolus (cv. White Prosperity). The experiment followed a Randomized Complete Block Design with split-plot arrangement, replicated three times. Main plots received different timings (3rd, 5th, 7th leaf stages), subplots were assigned various concentrations (0, 100, 200, 300, 400 mm). Calcium chloride was applied as spray. Results showed that applying 300 mm at 5th stage yielded longest spike emergence (96.63 days), tallest length (128.50 cm), extended both first (7.23 days) last (5.34 life spans. Additionally, florets treatment had highest content (0.853%). These findings demonstrate precise enhances quality market value contributes to sustainable horticulture optimising use input waste supporting resilience floriculture practices.

Language: Английский

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S-Sulfenylation-mediated inhibition of the GSNOR1 activity regulates ovule development in Arabidopsis

Journal of genetics and genomics/Journal of Genetics and Genomics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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