Regulatory Dynamics of Plant Hormones and Transcription Factors under Salt Stress

Biology, Journal Year: 2024, Volume and Issue: 13(9), P. 673 - 673

Published: Aug. 29, 2024

The negative impacts of soil salinization on ion homeostasis provide a significant global barrier to agricultural production and development. Plant physiology biochemistry are severely affected by primary secondary NaCl stress impacts, which damage cellular integrity, impair water uptake, trigger physiological drought. Determining how transcriptional factors (TFs) hormone networks regulated in plants response salt is necessary for developing crops that tolerate salt. This study investigates the complex mechanisms several TF families influence plant responses stress, involving AP2/ERF, bZIP, NAC, MYB, WRKY. It demonstrates these transcription help respond detrimental effects salinity modulating gene expression through including signaling, osmotic pathway activation, homeostasis. Additionally, it explores hormonal imbalances triggered entail interactions among phytohormones like jasmonic acid (JA), salicylic (SA), abscisic (ABA) within regulatory networks. review highlights role key salt-stress response, their interaction with hormones crucial genome-edited can enhance sustainability address food security challenges.

Language: Английский

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Salt-tolerant plant growth-promoting bacteria as a versatile tool for combating salt stress in crop plants

Archives of Microbiology, Journal Year: 2024, Volume and Issue: 206(8)

Published: July 5, 2024

Language: Английский

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Drought priming improves tolerance of Alhagi sparsifolia to subsequent drought: A coordinated interplay of phytohormones, osmolytes, and antioxidant potential

Plant Stress, Journal Year: 2024, Volume and Issue: 12, P. 100469 - 100469

Published: April 25, 2024

Perennial trees are often stressed by drought more than once during their life cycle. Our study exposed three-month-old Alhagisparsifolia, with (drought-primed) or without (nonprimed) prior stress to subsequent for two months, aiming reveal whether pre-exposure could enhance seedling resistance and investigated possible underlying mechanisms. Root biomass, leaf relative water content, chlorophyll a, carotenoids were significantly higher in drought-primed nonprimed seedlings. They also had reduced concentrations of malondialdehyde, hydrogen peroxide (H2O2), superoxide anions (O2•−), indicating relief from oxidative stress. This was associated a coordinated upregulation enzymes scavenging O2•− H2O2, particularly dismutase (SOD) catalase (CAT), the maintenance ascorbate-glutathione (AsA-GSH) redox pool enzymatic activities (ascorbate peroxidase, mono- dehydroascorbate reductase, glutathione reductase), leading better regulation reactive oxygen species. The failure seedlings upregulate SOD, CAT, AsA-GSH cycles nevertheless made susceptible increased levels strigolactones, jasmonic acid, abscisic acid roles displayed gibberellic indole acetic acid. A principal component analysis showed that responded differently if they previously suffered drought, mainly due capacity pigment protection, scavenging, osmolytes, anti-stress hormones. provides insights into benefits memory induced early priming as strategy overcoming

Language: Английский

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Functional Characterization of the Soybean Glycine max Actin Depolymerization Factor GmADF13 for Plant Resistance to Drought Stress

Plants, Journal Year: 2024, Volume and Issue: 13(12), P. 1651 - 1651

Published: June 14, 2024

Abiotic stress significantly affects plant growth and has devastating effects on crop production. Drought is one of the main abiotic stressors. Actin a major component cytoskeleton, actin-depolymerizing factors (ADFs) are conserved actin-binding proteins in eukaryotes that play critical roles responses to various stresses. In this study, we found GmADF13, an ADF gene from soybean Glycine max, showed drastic upregulation under drought stress. Subcellular localization experiments tobacco epidermal cells protoplasts GmADF13 was localized nucleus cytoplasm. We characterized its biological function transgenic Arabidopsis hairy root composite plants. plants transformed with displayed more robust tolerance than wild-type plants, including having higher seed germination rate, longer roots, healthy leaves conditions. Similarly, GmADF13-overexpressing (OE) generated via Agrobacterium rhizogenes-mediated transformation roots improved tolerance. Leaves OE relative water, chlorophyll, proline contents, had antioxidant enzyme activity, decreased malondialdehyde, hydrogen peroxide, superoxide anion levels compared those control Furthermore, stress, activated transcription several drought-stress-related genes, such as GmbZIP1, GmDREB1A, GmDREB2, GmWRKY13, GmANK114. Thus, positive regulator response, it may essential role These results provide new insights into functional elucidation ADFs. They be helpful for breeding cultivars strong further understanding how ADFs help adapt

Language: Английский

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Exogenous Melatonin Improves Drought Tolerance by Regulating the Antioxidant Defense System and Photosynthetic Efficiency in Fodder Soybean Seedings

Plants, Journal Year: 2025, Volume and Issue: 14(3), P. 460 - 460

Published: Feb. 5, 2025

Fodder soybean (Glycine max L.) with high protein and yield is a popular forage grass in northeast China. Seasonal drought inhibits its growth development during seedling stage. The objective of this study was to observe morpho-physiological changes fodder seedlings under melatonin (MT) treatments identify appropriate concentration alleviate the damage. Two varieties commonly used China were treated 0, 50, 100, 150 μM at soil water content 30%. results indicated that applying enhanced height, biomass altered root morphology water-deficient conditions. different concentrations significantly reduced contents H2O2, O2− MDA, while boosting capacity antioxidant defense system osmotic adjustment substances. Meanwhile, increases light energy capture transmission efficiency observed. Furthermore, treatment regulated expression levels genes associated photosynthesis system. Notably, 100 produced most favorable effect all These research provide new information for enhancing tolerance using chemical measures.

Language: Английский

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Diversity of Arbuscular Mycorrhiza Fungi in the Arid Desert Ecosystems of Kuwait: Detection and Identification from Perennial Native Grass Roots

Diversity, Journal Year: 2025, Volume and Issue: 17(2), P. 130 - 130

Published: Feb. 14, 2025

Arbuscular Mycorrhizal Fungi (AMF) play a key role in enduring stresses desert ecosystems, as they enhance the moisture and nutrient supply to plants. An investigation was carried out detect existence of AMF root regions five perennial native grasses Kuwait (Cenchrus ciliaris L., Cenchrus setigerus Vahl, Lasiurus scindicus Henrard, Pennisetum divisum (Forssk.) Henr., Panicum turgidum Forssk.) comparison with non-native grass (Panicum virgatum L.). The plants, C. P. had highest colonization (100%) vesicles, followed by (90%). arbuscules grass, (60%), (50%). Phylogenetic analysis for molecular identification determine genetic diversity community association plant roots two dominant species, i.e., L. turgidum, against virgatum, revealed rich diversity. AMF, Claroideoglomus lamellosum, Rhizophagus sp. were identified from roots, iranicus almost 98–100% sequence similarity, indicating significant difference between mycorrhizal species nativity grasses. This research confirms associated plants emphasizes their symbiosis host specificity. Thus, this study provides insight into structures, functions, profiling, allowing us understand ecological economic impacts, ultimately implement strategies sustainable biodiversity, productivity, ecosystem management.

Language: Английский

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Mechanistic Insights into Plant Drought Tolerance: A Multi-level Perspective

Deleted Journal, Journal Year: 2025, Volume and Issue: 77(2)

Published: March 4, 2025

Language: Английский

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Somatic drought stress memory affects leaf morpho-physiological traits of plants via epigenetic mechanisms and phytohormonal signalling

Plant Gene, Journal Year: 2025, Volume and Issue: unknown, P. 100509 - 100509

Published: April 1, 2025

Language: Английский

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Drought and Herbivory Drive Physiological and Phytohormonal Changes in Soybean (Glycine max Merril): Insights From a Meta‐Analysis

Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

ABSTRACT With climate change, abiotic and biotic stresses such as drought herbivory are predicted to further diminish agricultural productivity. Soybean ( Glycine max [L.] Merrill), a crop of global economic importance, is vulnerable both. However, the interactive effects on soybeans haven't been explored, especially through lens physiological phytohormonal changes. To address this, we conducted meta‐analysis from 114 published studies, reduced 31 after removing redundancy, with data (photosynthesis stomatal conductance) traits (jasmonic acid [JA] salicylic [SA]) under drought, herbivory, their combination. existing studies so far, show that has negative impacts soybean photosynthesis conductance whereas but neutral conductance. And phytohormones had opposite effects, JA levels increasing. our understanding, this first assimilating understand combined We also put forward potential questions avenues for research in expanding understanding about regulatory pathways consequences other stressors agroecosystems.

Language: Английский

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Agronomic and anatomic performance of some soybean genotypes under optimal and water-deficit conditions

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: May 1, 2025

Drought is a major environmental challenge that significantly limits crop productivity, and its impact varies based on the severity timing of water scarcity. Soybean [Glycine max (L.) Merr.] faces considerable yield constraints under water-deficit conditions. This study evaluated performance eight soybean genotypes characterized by different levels drought tolerance compared with drought-tolerant world genotype PI416937 normal [100% evapotranspiration (ETc)] deficit irrigation (60% ETc) conditions during 2021 2022 seasons at Sakha Agricultural Research Station. Under irrigation, promising line H4L4 produced 92% (4.07 t/ha) productivity 89% (2.12 for in an average two seasons. Applying saved 37.54% 38.61% applied across seasons, whereas achieved highest use efficiency (0.95 0.90 kg seeds/m3) respective highlighting potential sustainable production water-limited The also exhibited stability adaptability seed diverse environments, as confirmed GGE biplot analysis. Furthermore, susceptibility index (DSI) proved superiority followed PI416937, Giza 22, DR101 tolerance. Additionally, anatomic studies highlighted superior maintaining thicker primary secondary xylem tissues along better stem leaf integrity levels. These resilient genotypes, thriving conditions, have significant valuable genetic resources breeding programs to enhance sustainability. may be well-suited widespread cultivation areas.

Language: Английский

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