Phytomelatonin: A key regulator of redox and phytohormones signaling against biotic/abiotic stresses

Redox Biology, Год журнала: 2023, Номер 64, С. 102805 - 102805

Опубликована: Июнь 30, 2023

Plants being sessile in nature, are exposed to unwarranted threats as a result of constantly changing environmental conditions. These adverse factors can have negative impacts on their growth, development, and yield. Hormones key signaling molecules enabling cells respond rapidly different external internal stimuli. In plants, melatonin (MT) plays critical role the integration various signals activation stress-response networks develop defense mechanisms plant resilience. Additionally, tackle stress-induced alteration cellular redox equilibrium by regulating expression hemostasis-related genes proteins. The purpose this article is compile summarize scientific research pertaining MT's effects plants' resilience biotic abiotic stresses. Here, we summarized that MT exerts synergistic effect with other phytohormones, for instance, ethylene, jasmonic acid, salicylic activates defense-related against phytopathogens. Furthermore, interacts secondary messengers like Ca2+, nitric oxide, reactive oxygen species regulate network. This interaction triggers transcription alleviate stress-related responses plants. Hence, synergic diverse hormones demonstrates phytomelatonin's importance influencing multiple contribute harsh factors.

Язык: Английский

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Different viral effectors suppress hormone-mediated antiviral immunity of rice coordinated by OsNPR1

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Май 25, 2023

Abstract Salicylic acid (SA) and jasmonic (JA) are plant hormones that typically act antagonistically in dicotyledonous plants SA JA signaling is often manipulated by pathogens. However, monocotyledonous plants, the detailed SA-JA interplay response to pathogen invasion remains elusive. Here, we show different types of viral can disrupt synergistic antiviral immunity mediated via OsNPR1 monocot rice. The P2 protein rice stripe virus, a negative-stranded RNA virus genus Tenuivirus , promotes degradation enhancing association OsCUL3a. activates disrupting OsJAZ-OsMYC complex boosting transcriptional activation activity OsMYC2 cooperatively modulate immunity. Unrelated proteins from viruses also interfere with OsNPR1-mediated facilitate pathogenicity, suggesting this may be more general strategy plants. Overall, our findings highlight distinct convergently obstruct JA-SA crosstalk infection

Язык: Английский

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Salicylic acid (SA)-mediated plant immunity against biotic stresses: An insight on molecular components and signaling mechanism

Plant Stress, Год журнала: 2024, Номер 11, С. 100427 - 100427

Опубликована: Март 1, 2024

Since the beginning of 21st century, climate change has been pervasive. Such climatic instabilities not only trigger plants' adaptability and survivability in harsh environments, but also sustain spread a broad spectrum pathogens including bacteria, fungi, viruses, that create disease pressure by affecting plant health immune barrier. Salicylic acid (SA) is potent phytohormone signaling molecule plays pivotal roles physio-biochemical processes during development. In addition to its widely known role abiotic stress response, SA vital response biotic stresses through their pathways, molecular interactions, corresponding interactions with other phytohormones like jasmonic acid, ethylene, abscisic etc. this perspective, dictated plethora interacting genes, proteins, transcription factors (TFs). The genes genetic regulators (TFs regulatory proteins) are associated fine-tune activating systemic localized cascade, triggering for pathogenesis-related (PR) phytoalexins, etc., modulate pathogen effectors. way, boosts plant's system acquired resistance (SAR) induced (ISR). addition, gene editing epigenetic regulation SA-responsive valuable innovative tools understand decipher complex SA-involved mechanism future utilities make climate-adaptive plants resistance.

Язык: Английский

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Rational management of the plant microbiome for the Second Green Revolution

Plant Communications, Год журнала: 2024, Номер 5(4), С. 100812 - 100812

Опубликована: Янв. 11, 2024

The Green Revolution of the mid-20th century transformed agriculture worldwide and has resulted in environmental challenges. A new approach, Second Revolution, seeks to enhance agricultural productivity while minimizing negative impacts. Plant microbiomes play critical roles plant growth stress responses, understanding plant-microbiome interactions is essential for developing sustainable practices that meet food security safety challenges, which are among United Nations Sustainable Development Goals. This review provides a comprehensive exploration key deterministic processes crucial microbiome management strategies, including host effect, facilitator microbe-microbe interactions. hierarchical framework modulation proposed bridge gap between basic research applications. emphasizes three levels modulation: single strain, synthetic community, situ modulation. Overall, rational wide-ranging applications can potentially be core technology Revolution.

Язык: Английский

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Salicylic Acid in Root Growth and Development

International Journal of Molecular Sciences, Год журнала: 2022, Номер 23(4), С. 2228 - 2228

Опубликована: Фев. 17, 2022

In plants, salicylic acid (SA) is a hormone that mediates plant’s defense against pathogens. SA also takes an active role in response to various abiotic stresses, including chilling, drought, salinity, and heavy metals. addition, recent years, numerous studies have confirmed the important of plant morphogenesis. this review, we summarize data on changes root morphology following treatments under both normal stress conditions. Finally, provide evidence for maintaining balance between responses morphogenesis development, presence crosstalk with other hormones during process.

Язык: Английский

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Jasmonic acid and salicylic acid modulate systemic reactive oxygen species signaling during stress responses

PLANT PHYSIOLOGY, Год журнала: 2022, Номер 191(2), С. 862 - 873

Опубликована: Сен. 29, 2022

Abstract Plants can send long-distance cell-to-cell signals from a single tissue subjected to stress the entire plant. This ability is termed “systemic signaling” and essential for plant acclimation and/or defense against pathogens. Several signaling mechanisms are associated with systemic signaling, including reactive oxygen species (ROS) wave, calcium hydraulic electric signals. The ROS wave coordinates multiple physiological, molecular, metabolic responses among different parts of acquired (SAA) stress. In addition, it linked several hormones, jasmonic acid (JA), salicylic (SA), abscisic (ABA). However, how these hormones modulate whether they required SAA not clear. Here we report that SA JA play antagonistic roles in modulating Arabidopsis (Arabidopsis thaliana). While augments suppresses during local wounding or high light (HL) treatments. We further show ethylene ABA regulation treatment. Interestingly, found redox-response protein NONEXPRESSOR OF PATHOGENESIS RELATED PROTEIN 1 accumulation response HL stress, as well Taken together, our findings suggest interplay between might regulate plants abiotic wounding.

Язык: Английский

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Cysteine thiol-based post-translational modification: What do we know about transcription factors?

Trends in Plant Science, Год журнала: 2022, Номер 28(4), С. 415 - 428

Опубликована: Дек. 6, 2022

Язык: Английский

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Decoding the molecular mechanism underlying salicylic acid (SA)‐mediated plant immunity: an integrated overview from its biosynthesis to the mode of action

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

Опубликована: Май 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.

Язык: Английский

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Melatonin and Its Homologs Induce Immune Responses via Receptors trP47363-trP13076 in Nicotiana benthamiana

Frontiers in Plant Science, Год журнала: 2021, Номер 12

Опубликована: Июнь 30, 2021

Melatonin (N-acetyl-5-methoxytryptamine), a naturally occurring small molecule, can protect plants against abiotic stress after exogenous treatmenting with it. It is not known if melatonin homologs, such as 5-methoxytryptamine and 5-methoxyindole, that are easy more cost-effective to synthesize stimulate the plant immune system in same manner melatonin. In present study, we assessed biological activity of 5-methoxytryptamin 5-methoxyindole. The results showed its homologs all induced disease resistance Phytophthora nicotianae Nicotiana benthamiana plants. application three compounds also stomatal closure production reactive oxygen species. Gene expression analysis indicated genes involved hydrogen peroxide (H 2 O ), nitric oxide (NO) production, salicylic acid (SA) biosynthesis was significantly upregulated by compounds. Four receptors were identified blasting search phytomelatonin receptor Arabidopsis . Molecular docking studies used identify four putative N. Further experimentation revealed silencing trP47363 trP13076 compromised induction closure, PR-1a gene SA accumulation Collectively, our data indicate defense responses melatonin, 5-methoxytryptamine, 5-methoxyindole involves trP13076.

Язык: Английский

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The Interplay between Hydrogen Sulfide and Phytohormone Signaling Pathways under Challenging Environments

International Journal of Molecular Sciences, Год журнала: 2022, Номер 23(8), С. 4272 - 4272

Опубликована: Апрель 12, 2022

Hydrogen sulfide (H2S) serves as an important gaseous signaling molecule that is involved in intra- and intercellular signal transduction plant–environment interactions. In plants, H2S formed sulfate/cysteine reduction pathways. The activation of endogenous its exogenous application has been found to be highly effective ameliorating a wide variety stress conditions plants. interferes with the cellular redox regulatory network prevents degradation proteins from oxidative via post-translational modifications (PTMs). H2S-mediated persulfidation allows rapid response networks environmental stimuli. addition, crosstalk other signals plant growth regulators enable multiple cascades drive adaptation. this review, we summarize discuss current understanding molecular mechanisms H2S-induced adjustments interactions between various pathways emphasizing recent progress our effects on PTMs proteins. We also future directions would advance ultimately mitigate impacts stresses

Язык: Английский

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