Pochonia chlamydosporia synergistically supports systemic plant defense response in Phacelia tanacetifolia against Meloidogyne hapla

Frontiers in Plant Science, Год журнала: 2025, Номер 15

Опубликована: Янв. 16, 2025

The network of antagonistic, neutral, and synergistic interactions between (micro)organisms has moved into the focus current research, since in agriculture, this knowledge can help to develop efficient biocontrol strategies. Applying nematophagous fungus Pochonia chlamydosporia as agent manage root-knot nematode Meloidogyne hapla is a highly promising strategy. To gain new insight systemic response plants plant-parasitic fungus, Phacelia was inoculated with M. and/or P. subjected transcriptome metabolome analysis leaves. While proved quite stable except for early time point 48 h, comparison single combined treatment revealed even larger effects after 6 d compared aligning later root infestation by hapla. Simultaneous exposure both microorganisms showed stronger overlap than chlamydosporia. Changes transcripts metabolites were higher individual inoculations. results support conclusion that induces plant defense distinct beneficial manner if although partly suppressed endophytic growth. tentatively suggested application against be more effective supporting these tritrophic specific additives, such phytohormones or amino acids formulation.

Язык: Английский

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Aspirin Foliar Spray-Induced Changes in Light Energy Use Efficiency, Chloroplast Ultrastructure, and ROS Generation in Tomato

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(3), С. 1368 - 1368

Опубликована: Фев. 6, 2025

Aspirin (Asp) is extensively used in human health as an anti-inflammatory, antipyretic, and anti-thrombotic drug. In this study, we investigated if the foliar application of Asp on tomato plants has comparable beneficial effects photosynthetic function to that salicylic acid (SA), with which it shares similar physiological characteristics. We assessed consequences Asp-spray photosystem II (PSII) efficiency plants, estimated reactive oxygen species (ROS) generation chloroplast ultrastructural changes. acted osmoregulator by increasing leaf water content offering antioxidant protection. This protection kept redox state plastoquinone (PQ) pull (qp) more oxidized, fraction open PSII reaction centers enhancing photochemistry (ΦPSII). addition, spray decreased formation, decreasing excess excitation energy PSII. resulted a lower singlet (1O2) quantum yield for heat dissipation (ΦNPQ), indicating photoprotective effect provided Asp, especially under light illumination. Simultaneously, observed decrease stomatal opening reduced transpiration. Chloroplast data revealed effect, need photorespiration process, reduces performance. It concluded characteristics SA, having equivalent impact SA acting biostimulant enhanced crop yield.

Язык: Английский

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Elevated CO2 alleviates negative impacts of high temperature and salinity on phytohormones, photosynthesis, and redox reactions in leaves of Caragana korshinskii Kom

Plant Physiology and Biochemistry, Год журнала: 2025, Номер 220, С. 109475 - 109475

Опубликована: Янв. 5, 2025

Язык: Английский

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Rice glycosyltransferase OsDUGT1 is involved in heat stress tolerance by glycosylating flavonoids and regulating flavonoid metabolism

Frontiers in Plant Science, Год журнала: 2025, Номер 15

Опубликована: Янв. 13, 2025

One significant environmental element influencing the growth and yield of rice (Oryza sativa L.) is high temperature. Nevertheless, mechanism by which responds to temperature not fully understood. A glycosyltransferase gene, OsDUGT1, was identified as a heat-responsive gene in this investigation. Its function studied overexpression knockout methods. The results showed that under heat stress, OsDUGT1 lines (OsDUGT1-OE) increased survival rate rice, while Osdugt1 (Osdugt1-ko) decreased compared wild type (ZH11). In addition stress tolerance also improved ectopic expression transgenic Arabidopsis thaliana plants. We observed ROS scavenging ability, malondialdehyde accumulation, ion leakage are relevant level OsDUGT1. Through enzyme activity analysis, we found could glycosylate flavonoid compounds. Correspondingly, loss caused decrease endogenous accumulation demonstrated our metabolomics analysis. Additionally, transcriptomic analysis mutant condition indicated mutation can reduce transcriptional response related genes, antioxidant genes other involved biosynthetic pathway. summary, work revealed plays crucial role adjusting balancing overall plant metabolism transcription through glycosylation flavonoids, offers key prospect for breeding efforts enhance crop trend climate warming all over globe.

Язык: Английский

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Bacillus velezensis RKN1111 enhances resistance against Meloidogyne incognita in Cucumis sativus

Pest Management Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Abstract BACKGROUND Meloidogyne incognita is a highly damaging pathogenic nematode that causes significant annual economic losses. Therefore, the development of reliable biological control agents against M. imperative. The Bacillus velezensis RKN1111 strain, isolated from inter‐root soil, demonstrates ability to directly kill . In this study, we investigated effect in inducing resistance Cucumis sativus and examined changes content immune‐responsive substances induction‐treated cucumber plants. RESULT treatment reduced number root galls infected cucumbers, with maximum reduction 78.19%. stably colonized roots, reaching 3.65 × 10 6 CFU/g 3 days. approach infestation rates on RKN1111‐induced treated tips declined at varying time points. Furthermore, induced increases ( P < 0.05) hydrogen peroxide (H 2 O ) superoxide anion (O 2− contents, as well callose deposition area cucumber, by up 59.84, 83.28, 61.59%, respectively. CONCLUSION has been demonstrated colonize systems defend systemic host plant. Additionally, elevated levels great potential for application integrated pest management incognita. © 2025 Society Chemical Industry.

Язык: Английский

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Epigenetic alterations in bioaccumulators of cadmium: Lessons from mammalian kidneys and plants

Environment International, Год журнала: 2024, Номер 191, С. 109000 - 109000

Опубликована: Сен. 1, 2024

Язык: Английский

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Rhamnolipid Modified Silica Nanoparticles Control Rice Blast Disease by Enhancing Antifungal Activity In Vivo and Antioxidant Defense System of Rice (Oryza sativa L.)

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 17(1), С. 1792 - 1802

Опубликована: Дек. 20, 2024

Blast disease caused by Magnaporthe oryzae is a devastating that limits rice grain production. Here, we synthesized rhamnolipid (RL) modified silica nanoparticles (SiO2NPs) based on the excellent antimicrobial activity of RL against various phytopathogens and role SiO2NPs in alleviating plant diseases investigated roles mechanisms RL@SiO2NPs application controlling blast disease. Two-week-old seedlings were sprayed with 100 mL/L different materials before pathogen inoculation, incidence was 5 days after inoculation. The results showed RL0.1@SiO2NPs most suitable mixture ratio suppressing enhanced resistance. Compared control, significantly reduced 10.80% relative growth fungus 97.05% increased shoot dry biomass 13.33%, which alleviated infection pressure fungus. Additionally, treatment, peroxidase, ascorbate polyphenol oxidase activities leaves 47.02%, 34.26%, 44.36%, respectively, total phenolics content 24.14%, malondialdehyde hydrogen peroxide decreased 5.28% 14.58%, respectively. also improved nutrient status resistance infected plants restoring balance or ion homeostasis, including potassium concentration (23.84%) Si (60.34%) roots magnesium (11.89%) iron concentrations (30.55%) leaves. In summary, our suggest enhance enhancing antifungal vivo, activating antioxidant defense system, affecting acquisition seedlings. have shown potential as green efficient agricultural chemical substitutes management.

Язык: Английский

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Alternative electron sinks in chloroplasts and mitochondria of halophytes as a safety valve for controlling ROS production during salinity

Physiologia Plantarum, Год журнала: 2024, Номер 176(3)

Опубликована: Май 1, 2024

Abstract Electron flow through the electron transport chain (ETC) is essential for oxidative phosphorylation in mitochondria and photosynthesis chloroplasts. fluxes depend on environmental parameters, e.g., ionic osmotic conditions endogenous factors, this may cause severe imbalances. Plants have evolved alternative sinks to balance reductive load chains order avoid overreduction, generation of reactive oxygen species (ROS), cope with stresses. These act primarily as valves drainage secondarily regulators tolerance‐related metabolism, utilizing excess energy. High salinity an stressor that stimulates ROS stress, which affects growth development by disrupting redox homeostasis plants. While glycophytic plants are sensitive high salinity, halophytic tolerate, grow, reproduce at salinity. Various studies examined ETC systems plants, however, information about state regulation ETCs halophytes under non‐saline saline scarce. This review focuses chloroplasts In cases where lacking, we available knowledge relationship between gradual resilience glycophytes. To end, transcriptional responses involved components photosynthetic respiratory were compared glycophyte Arabidopsis thaliana halophyte Schrenkiella parvula , time‐courses these transcripts A. . The observed regulatory patterns discussed context molecular formation

Язык: Английский

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Mapping the redox regulatory landscape: a bit of history and a look to the future

Journal of Experimental Botany, Год журнала: 2024, Номер 75(15), С. 4453 - 4458

Опубликована: Авг. 12, 2024

Язык: Английский

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Protective effect of Ocimum basilicum L. essential oil on Lactuca sativa L. treated with cadmium.

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 219, С. 109437 - 109437

Опубликована: Дек. 21, 2024

Язык: Английский

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