Dual impacts of long-term vegetation management practices on plant-soil ecological multifunctionality: Call for sustainable management in desert ecosystems

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 375, P. 124409 - 124409

Published: Feb. 1, 2025

Language: Английский

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The Role of Phosphorus Fertilization in Antioxidant Responses of Drought-Stressed Common Beech and Sessile Oak Provenances

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(7), P. 3053 - 3053

Published: March 26, 2025

During drought, a major abiotic stressor for European forests, excessive reactive oxygen species (ROS) are produced, causing oxidative damage that affects structural and metabolic tree functions. This research examines the effects of phosphorus (P) fertilization, provenance on photosynthetic pigments, malondialdehyde (MDA) concentrations, antioxidant enzyme activities in common beech (Fagus sylvatica L.) sessile oak (Quercus petraea (Matt.) Liebl.) saplings from two provenances. In garden experiment, four treatments were applied: regular watering with (+PW) without P fertilization (-PW), drought (+PD) (-PD) fertilization. Results showed increased both MDA concentrations activity, particularly superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), ascorbate (APX), which responsible ROS scavenging. Additionally, chlorophyll + b lower drought-exposed plants. Phosphorus minimally affected levels but enhanced responses, APX CAT during drought. Provenance differences notable, drier showing better adaptation, reflected higher activities. study underscores importance defenses coping stress, shaping species' adaptive capacity.

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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Exogenous Potassium Silicate Improves Drought Tolerance in Cotton Genotypes by Modulating Growth, Gas Exchange and Antioxidant Metabolism

Deleted Journal, Journal Year: 2024, Volume and Issue: 76(4), P. 883 - 901

Published: July 1, 2024

Cotton is a highly sensitive crop to drought stress. Consequently, it crucial devise strategies that optimize production in conditions of limited water availability. While potassium silicate has demonstrated effectiveness mitigating stress various crops, its specific impact on different cotton cultivars under remains not fully clarified. This research aimed assess the efficacy six levels (0, 100, 200, 300, 400 and 500 mg L−1) four genotypes (Zong main-113, Xin Nong-525, lu Zhong-55, Zhong-66) two field capacity (80% 50% FC) sand culture. Foliar applied significantly improved photosynthetic efficiency, shoot biomass, root leaf area (50% FC). The most substantial reduction H2O2, malondialdehyde levels, electrolyte leakage was recorded with at rate L−1. concentration effectively mitigated reactive oxygen species accumulation, safeguarding plants against oxidative damage FC. Furthermore, contributed maintaining status, resulting increased content elevated water-soluble proteins plants. order resistance application L−1 Zong Mian-113, Zhong-66. findings could help selection conditions.

Language: Английский

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Exploring the Genetic Basis of Drought Tolerance in Alhagi camelorum: A Comprehensive Transcriptome Study of Osmotic Stress Adaptations

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(23), P. 12725 - 12725

Published: Nov. 27, 2024

Alhagi camelorum, a desert shrub known for its impressive drought tolerance, exhibits notable resilience under arid conditions. However, the underlying mechanisms driving resistance remain largely unexplored. This study aims to investigate these by exposing A. camelorum osmotic stress using varying polyethylene glycol (PEG) concentrations (1%, 5%, 10%) in controlled laboratory setting. Growth analysis revealed significant inhibition and phenotypic changes with increasing PEG levels. Transcriptomic analysis, including differentially expressed gene identification, GO enrichment hierarchical cluster of genes roots shoots, identified key pathways associated adaptation, such as ABA-activated signaling, cell wall biogenesis, photosynthesis, secondary metabolite biosynthesis. Notably, some involved exhibited tissue-specific expression patterns showed concentration-dependent regulation. Key findings include dose-dependent (R2 > 0.8) upregulation proline-rich protein (Asp01G030840) BURP domain-containing (Asp02G039780), well critical biogenesis (encoding Pectinesterase inhibitor Fasciclin-like arabinogalactan protein), biosynthesis enzymes terpenoid flavonoid biosynthesis). The regulation is likely influenced phytohormones ABA other stress-related hormones, along transcription factors like ABI4, TALE, MYB61, GRAS, ERF. These insights lay groundwork further research into functional roles genes, their regulatory networks, potential applications enhancing plants agricultural crops.

Language: Английский

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Harnessing Drought-Induced Immune Priming for Intergenerational Resistance to Spot Blotch in Wheat

Physiological and Molecular Plant Pathology, Journal Year: 2024, Volume and Issue: unknown, P. 102558 - 102558

Published: Dec. 1, 2024

Language: Английский

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