The Regulation of ROS and Phytohormones in Balancing Crop Yield and Salt Tolerance

Antioxidants, Год журнала: 2025, Номер 14(1), С. 63 - 63

Опубликована: Янв. 7, 2025

Salinity affects crop growth and productivity, this stress can be increased along with drought or high temperature stresses poor irrigation management. Cultivation of salt-tolerant crops plays a critical role in enhancing yield under salt stress. In the past few decades, mechanisms plant adaptation to have been described, especially relying on ionic homeostasis, reactive oxygen species (ROS) scavenging, phytohormone signaling. The studies these molecular provided basis for breeding new germplasm facilitated entry into era crops. review, we outline recent progress regulations underlying tolerance, focusing double-edged sword effect ROS, regulatory phytohormones, trade-off effects ROS phytohormones between tolerance. A future challenge is identify superior alleles key genes that will accelerate high-yield varieties.

Язык: Английский

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OsbZIP18 Is a Positive Regulator of Phenylpropanoid and Flavonoid Biosynthesis under UV-B Radiation in Rice

Plants, Год журнала: 2024, Номер 13(4), С. 498 - 498

Опубликована: Фев. 10, 2024

In plants exposed to ultraviolet B radiation (UV-B; 280–315 nm), metabolic responses are activated, which reduce the damage caused by UV-B. Although several metabolites responding UV-B stress have been identified in plants, accumulation of these at different time points under remains largely unclear, and transcription factors regulating not well characterized. Here, we explored changes rice after treatment for 0 h, 6 12 24 h six patterns change. We show that factor OsbZIP18 plays an important role phenylpropanoid flavonoid biosynthesis rice. Metabolic profiling revealed contents were significantly reduced osbzip18 mutants compared with wild-type (WT) stress. Further analysis showed expression many genes involved pathways was lower than WT including OsPAL5, OsC4H, Os4CL, OsCHS, OsCHIL2, OsF3H. Electrophoretic mobility shift assays (EMSA) bind promoters genes, suggesting function is positive regulator conclusion, our findings essential a crucial

Язык: Английский

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Halotolerant Enterobacter asburiae A103 isolated from the halophyte Salix linearistipularis: genomic analysis and growth-promoting effects on Medicago sativa under alkali stress

Microbiological Research, Год журнала: 2024, Номер 289, С. 127909 - 127909

Опубликована: Сен. 19, 2024

Язык: Английский

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Metabolomic Analysis Reveals the Diversity of Defense Metabolites in Nine Cereal Crops

Plants, Год журнала: 2025, Номер 14(4), С. 629 - 629

Опубликована: Фев. 19, 2025

Cereal crops are important staple foods, and their defense metabolites hold significant research importance. In this study, we employed LC-MS-based untargeted widely-targeted metabolomics to profile the leaf metabolome of nine cereal species, including rice, wheat, maize, barley, sorghum, common oat, foxtail millet, broomcorn adlay. A total 9869 features were detected, among them, 1131 annotated, encompassing 18 classes such as flavonoids, lipids, alkaloids. Results revealed that 531 detected in all while each crop possessed 4 12 unique metabolites. Focusing on metabolites, identified eight benzoxazinoids uniquely present Hierarchical clustering based metabolite abundance divided into clusters, subsequent pathway enrichment analysis stress-related flavonoid biosynthesis was enriched multiple clusters. Further showed four downstream compounds HBOA (2-hydroxy-1,4-benzoxazin-3-one) benzoxazinoid maize. Wheat accumulated 4'-methylated product tricin, trimethoxytricetin, whereas adlay tricin precursor tricetin pathway. summary, study elucidates metabolic diversity various crops, providing valuable background information for improvement stress resistance crops.

Язык: Английский

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Late embryogenesis abundant gene GhLEA-5 of semi-wild cotton positively regulates salinity tolerance in upland cotton

Gene, Год журнала: 2025, Номер unknown, С. 149372 - 149372

Опубликована: Фев. 1, 2025

Язык: Английский

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Integrated analysis of metabolomics and transcriptomics reveals the metabolites responsible for the antioxidant activity of water caltrop hull

Plant Stress, Год журнала: 2025, Номер unknown, С. 100746 - 100746

Опубликована: Фев. 1, 2025

Язык: Английский

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Propionic Acid Signalling Modulates Stomatal Opening and Drives Energy Metabolism to Enhance Drought Resistance in Wheat (Triticum aestivum L.)

Plant Cell & Environment, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

ABSTRACT Drought stress caused by global climate change severely imperils crop productivity and increases environmental deterioration. Wheat ( Triticum aestivum L.) is an important worldwide food crop. resistance in wheat encompasses functional gene transcription, metabolism, hormone signalling, protein modifications. However, the underlying mechanisms which these regulatory responses are coordinated remain unknown. Herein, we report a drought‐resistance network triggers dynamic metabolic flux conversion from propionic acid (PA) to tricarboxylic (TCA) cycle through beta‐oxidation of fatty acids stimulates crosstalk various hormonal signals. It also possible that P300/CREB regulates histone acetylation confer drought wheat. Exogenous PA drives TCA glycolysis promotes stomatal closure hormones crosstalk. From Aegilops tauschii Cosson (the diploid progenitor common wheat) wheat, this novel function serves as survival strategy against changes, was validated field experiments. Our results highlight new comprehensive systemic effects genes, metabolomics, modification on provide insights into improving agroecological environment.

Язык: Английский

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Molecular Mechanism of Exogenous GABA in Regulating Salt Tolerance in Tomato (Solanum lycopersicum L.)

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(11), С. 5145 - 5145

Опубликована: Май 27, 2025

To explore the mechanism by which γ-aminobutyric acid (GABA) regulates response of different salt-sensitive tomato seedlings under salt stress conditions, we used previously selected ‘M82’ and salt-tolerant introgression line ‘IL-7-5-5’. The following three treatments were set up: (1) a normal nutrient solution concentration as control, (2) with 200 mmol·L−1 NaCl, (3) NaCl 35 GABA. reactive oxygen species metabolism-related compounds antioxidant enzyme activity in leaves subjected to measured, transcriptome metabolome analyses conducted. After adding GABA, SOD, POD, APX significantly increased, while GR decreased. In ‘IL-7-5-5’ seedlings, CAT, APX, increased. combined results from analysis indicated that 52 metabolic pathways enriched, included plant signal transduction pathways, phenylpropanoid biosynthesis amino sugar nucleotide metabolism pathways. ‘IL-7-5-5′ seedling leaves, 59 carbon A further revealed both varieties had higher number differentially enriched genes differential metabolites belonging hormone indicating GABA enhances tolerance regulating these two mechanisms.

Язык: Английский

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Patch‐Clamp‐ and ¹⁵N Isotope Tracer‐Based Techniques Reveal the Transport Characteristics of SlGAT1 and the Metabolic Flow of Exogenous GABA Under Salt Stress

Plant Cell & Environment, Год журнала: 2025, Номер unknown

Опубликована: Июнь 2, 2025

ABSTRACT γ‐Aminobutyric acid (GABA) plays an important role in plant growth, development, and stress resistance. Exogenous GABA works by increasing the content of endogenous GABA; therefore, transport from apoplast to cytosol is critical. In this study, two transporter genes, SlGAT1 SlGAT2 were identified tomato. It was verified that efficiency greater than via a two‐electrode voltage clamp (TEVC) quantitative real‐time PCR (qRT‐PCR). combination with its subcellular tissue expression, localised on plasma membrane widely distributed plants response salt stress. addition, 15 N isotope tracing confirmed exogenous can be absorbed roots transported stems leaves. After transmembrane cytosol, converted into glutamate, which then catabolized arginine three branched‐chain amino acids (BCAAs), valine, leucine, isoleucine through four metabolic pathways. Among them, processes glutamate‐aspartate‐threonine‐glycine‐serine‐BCAAs are crucial. Our findings provide first evidence high affinity located tomato membrane, regulates cell pathways, promotes growth enhances tolerance transport.

Язык: Английский

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Comparative Metabolome and Transcriptome Analyses Reveal Molecular Mechanisms Involved in the Responses of Two Carex rigescens Varieties to Salt Stress

Plants, Год журнала: 2024, Номер 13(21), С. 2984 - 2984

Опубликована: Окт. 25, 2024

Salt stress severely inhibits crop growth and production. The native turfgrass species Carex rigescens in northern China, exhibits extraordinary tolerance to multiple abiotic stresses. However, little is known about its specific metabolites pathways under salt stress. To explore the molecular metabolic mechanisms stress, we conducted metabolome analysis combined with transcriptome of two varieties differing tolerances: salt-sensitive Lvping NO.1 salt-tolerant NO.2. After 5 days treatment, 114 131 differentially abundant (DAMs) were found NO.2, respectively. Among them, six amino acids involved acid biosynthesis pathway, namely, valine, phenylalanine, isoleucine, tryptophan, threonine, serine, accumulated after treatment. Furthermore, most DAMs related phenylalanine biosynthesis, metabolism, phenylpropanoid increased both varieties. expression profiles metabolism-associated genes consistent profiles. including HCT, β-glucosidases, F5H, metabolite 4-hydroxycinnamic acid, may account for differences tolerance. Our study provides new insights into underlying reveals potential improve resilience saline environments.

Язык: Английский

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