Interplay Between ROS and Hormones in Plant Defense Against Pathogens DOI Creative Commons
Mostafa Haghpanah, Amin Namdari, Mostafa Koozehgar Kaleji

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(9), P. 1297 - 1297

Published: April 25, 2025

Reactive oxygen species (ROS) are toxic by-products of aerobic cellular metabolism. However, ROS conduct multiple functions, and specific sources can have beneficial or detrimental effects on plant health. This review explores the complex dynamics in defense mechanisms, focusing their involvement basal resistance, hypersensitive response (HR), systemic acquired resistance (SAR). ROS, including superoxide anion (O2−), singlet (1O2), hydroxyl radicals (OH), hydrogen peroxide (H2O2), generated through various enzymatic pathways. They may serve to inhibit pathogen growth while also activating defense-related gene expression as signaling molecules. Oxidative damage cells is mainly attributed excess production. produce metabolic intermediates that involved The oxidative burst triggered by recognition initiates hyper-resistance a localized programmed cell death restricting spread. Additionally, facilitate establishment SAR inducing networks enhance across plant. interplay between phytohormones such jasmonic acid (JA), salicylic (SA), ethylene (ET) further complicates this regulatory framework, underscoring importance orchestrating both local responses. Grasping these mechanisms essential for creating strategies resilience biotic stresses.

Language: Английский

Next generation chemical priming: with a little help from our nanocarrier friends DOI Creative Commons
Gholamreza Gohari, Meng Jiang, George A. Manganaris

et al.

Trends in Plant Science, Journal Year: 2024, Volume and Issue: 29(2), P. 150 - 166

Published: Jan. 16, 2024

Plants are exposed to multiple threats linked climate change which can cause critical yield losses. Therefore, designing novel crop management tools is crucial. Chemical priming has recently emerged as an effective technology for improving tolerance stress factors. Several compounds such phytohormones, reactive species, and synthetic chimeras have been identified promising agents. Following remarkable developments in nanotechnology, several unique nanocarriers (NCs) engineered that act smart delivery systems. These provide eco-friendly, next-generation method chemical priming, leading increased efficiency reduced overall usage. We review NCs (NENCs) vehicles agents advanced strategies, address challenges opportunities be met towards achieving sustainable agriculture.

Language: Английский

Citations

26
Redox Regulation by Priming Agents Toward a Sustainable Agriculture DOI Creative Commons
Durgesh Kumar Tripathi, Javaid Akhter Bhat, Chrystalla Antoniou

et al.

Plant and Cell Physiology, Journal Year: 2024, Volume and Issue: 65(7), P. 1087 - 1102

Published: March 29, 2024

Abstract Plants are sessile organisms that often subjected to a multitude of environmental stresses, with the occurrence these events being further intensified by global climate change. Crop species therefore require specific adaptations tolerate climatic variability for sustainable food production. Plant stress results in excess accumulation reactive oxygen leading oxidative and loss cellular redox balance plant cells. Moreover, enhancement oxidation as well signals has been recently recognized crucial players growth regulation under conditions. Multiple roles crop production have documented, major emphasis focused on key redox-regulated proteins non-protein molecules, such NAD(P)H, glutathione, peroxiredoxins, glutaredoxins, ascorbate, thioredoxins reduced ferredoxin. These widely implicated (epi)genetic factors modulating health plants, an agricultural context. In this regard, priming employment chemical biological agents emerged fascinating approach improve tolerance against various abiotic biotic stressors. Priming plants is physiological process, where prior exposure stressors induces state heightened alertness, enabling more rapid effective defense response upon subsequent encounters similar challenges. reported play role modulation homeostasis, maximizing productivity conditions thus achieving yield security. By taking into consideration, present review up-to-date critical evaluation promising technologies their components toward enhanced extreme unfavorable The challenges opportunities discussed, aim encouraging future research field application management crops including horticultural species.

Language: Английский

Citations

14
Decoding the molecular mechanism underlying salicylic acid (SA)‐mediated plant immunity: an integrated overview from its biosynthesis to the mode of action DOI Creative Commons
Rajib Roychowdhury,

Sapna Mishra,

Gautam Anand

et al.

Physiologia Plantarum, Journal Year: 2024, Volume and Issue: 176(3)

Published: May 1, 2024

Abstract Salicylic acid (SA) is an important phytohormone, well‐known for its regulatory role in shaping plant immune responses. In recent years, significant progress has been made unravelling the molecular mechanisms underlying SA biosynthesis, perception, and downstream signalling cascades. Through concerted efforts employing genetic, biochemical, omics approaches, our understanding of SA‐mediated defence responses undergone remarkable expansion. general, following biosynthesis through Avr effectors pathogens, newly synthesized undergoes various biochemical changes to achieve active/inactive forms (e.g. methyl salicylate). The activated subsequently triggers pathways associated with perception pathogen‐derived signals, expression genes, induction systemic acquired resistance (SAR) tailor intricate networks that coordinate Nonetheless, mechanistic regulation currently limited because crosstalk other networks, which makes this hormone more challenging. This comprehensive review aims provide integrated overview immunity, deriving current knowledge from diverse research outcomes. integration case studies, experimental evidence, emerging trends, offers insights into governing immunity signalling. Additionally, discusses potential applications strategies crop improvement, disease management, sustainable agricultural practices.

Language: Английский

Citations

10
Lack of induced chemical changes in leaves of susceptible alternate hosts of Cronartium spp. after inoculation by Cronartium pini and C. ribicola DOI Creative Commons

Juha Piispanen,

Ulrich Bergmann, Jouni Karhu

et al.

European Journal of Plant Pathology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Language: Английский

Citations

1
GABA primes defense responses against Botrytis cinerea in tomato fruit by modulating ethylene and JA signaling pathways DOI

Meiqi Li,

Xinhua Zhang,

Jiaoqi Li

et al.

Postharvest Biology and Technology, Journal Year: 2023, Volume and Issue: 208, P. 112665 - 112665

Published: Nov. 10, 2023

Language: Английский

Citations

17
Upcycling olive pomace into pectic elicitors for plant immunity and disease protection DOI Creative Commons
Marco Greco, Dimitrios Kouzounis,

María Fuertes-Rabanal

et al.

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 217, P. 109213 - 109213

Published: Oct. 19, 2024

Language: Английский

Citations

7
Symbiotic Synergy: Unveiling Plant-Microbe Interactions in Stress Adaptation DOI
Muhammad Anas, Awais Khalid, Muhammad Hamzah Saleem

et al.

Deleted Journal, Journal Year: 2024, Volume and Issue: 77(1)

Published: Dec. 20, 2024

Amidst escalating climate challenges, understanding microbe-mediated plant growth regulation and stress resilience is pivotal for sustainable agriculture. Non-pathogenic microbes, which reside in the phyllosphere, rhizosphere, as endophytes or epiphytes, play crucial roles enabling plants to withstand climate-induced stresses such extreme temperatures, drought, salinity, shifting pathogen dynamics. These microbial symbionts enhance nutrient availability, alter physiological responses, contribute significantly adaptive metabolism health. This review delves into multifaceted interactions between focusing on biochemical enzymatic exchanges that govern immune responses defense signaling under environmental stresses. Recent research highlights plant-associated microbes a 'second functional genome,' diverse structure function, essential resilience. We critically examine contributions alleviating abiotic stressors, highlighting factors diversity, ecosystem compatibility, role of synthetic consortia climate-adapted The emergence novel pathogenic strains due fluctuations mitigating these threats are also discussed. Furthermore, we assess potential axenic cultures enhancing fluctuating environments, while acknowledging gap controlled lab findings broader field applications. Concluding with integrating multi-omic approaches, this underscores importance unraveling complex plant-microbe develop strategies supporting resilient climate-adaptive agricultural systems.

Language: Английский

Citations

7
Unveiling Methods to Stimulate Plant Resistance against Pathogens DOI Creative Commons
Roohallah Saberi Riseh, Mozhgan Gholizadeh Vazvani

Frontiers in Bioscience-Landmark, Journal Year: 2024, Volume and Issue: 29(5)

Published: May 14, 2024

Plant diseases caused by pathogens pose significant threats to agricultural productivity and food security worldwide. The traditional approach of relying on chemical pesticides for disease management has proven be unsustainable, emphasizing the urgent need sustainable environmentally friendly alternatives. One promising strategy is enhance plant resistance against through various methods. This review aims unveil explore effective methods stimulating resistance, transforming vulnerable plants into vigilant defenders pathogens. We discuss both conventional innovative approaches, including genetic engineering, induced systemic (ISR), priming, use natural compounds. Furthermore, we analyze underlying mechanisms involved in these methods, highlighting their potential advantages limitations. Through an understanding scientists agronomists can develop novel strategies combat effectively while minimizing environmental impact. Ultimately, this research offers valuable insights harnessing plant’s innate defense paves way practices agriculture.

Language: Английский

Citations

6
Identification of novel associations of candidate marker genes with resistance to onion-fusarium basal rot interaction pathosystem DOI

SaeidReza Poursakhi,

Hossein Ali Asadi‐Gharneh, Mohammad Hossein Nasr‐Esfahani

et al.

Plant Gene, Journal Year: 2023, Volume and Issue: 37, P. 100440 - 100440

Published: Nov. 19, 2023

Language: Английский

Citations

14
Terpenoids are involved in the expression of systemic‐induced resistance in Austrian pine DOI Creative Commons
Soumya K. Ghosh,

Guncha Ishangulyyeva,

Nadir Erbilgin

et al.

Plant Cell & Environment, Journal Year: 2024, Volume and Issue: 47(6), P. 2206 - 2227

Published: March 13, 2024

Terpenoids are defense metabolites that induced upon infection or wounding. However, their role in systemic-induced resistance (SIR) is not known. Here, we explored the of terpenoids this phenomenon at a very early stage interaction between Austrian pine and tip blight canker pathogen Diplodia pinea. We saplings by either wounding inoculating lower stems with D. The seedlings were then challenged after 12 h, 72 10 days pinea on stem 15 cm above induction. Lesion lengths quantified both induction challenge locations. Key assayed for antifungal activity vitro bioassays. SIR increased time was correlated inducibility several compounds. α-Pinene cluster β-pinene, limonene, benzaldehyde, dodecanol, n-dodecyl acrylate positively fungistatic vitro, while other compounds negatively appeared to serve as carbon source This study shows that, overall, involved system, but nuanced, depending type incubation. hypothesize some, such α-pinene, could signaling.

Language: Английский

Citations

6