Ethylene accelerates copper oxide nanoparticle-induced toxicity at physiological, biochemical, and ultrastructural levels in rice seedlings

Azhar, Wardah; Khan, Ali Raza; Salam, Abdul Kadir; Ulhassan, Zaid; Qi, Jiaxuan; shah, Gulmeena; Liu, Yihua; Yang, Chi; Yang, Shuaiqi; Gan, Yinbo

doi:10.1007/s11356-022-23915-8

Cited by 19 publications

(5 citation statements)

References 63 publications

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“…Heavy metals are very toxic when absorbed by the vascular tissues of plants as these reduce the oxidationreduction reactions, ATP synthesis, chlorophyll activity, and cell division (Figure 7). Hence, plants move towards stunned growth as well as cell death [13,17,34]. Here, we are going to address the relationship of jasmonic acid (JA) with heavy metals where JA acts as a repellent to the toxicity induced by heavy metals and it promptly boosts up the immunity system in plants by expressing defense-related genes [23,36,47,122].…”

Section: Mitigation Of Heavy Metals Stress Through Jamentioning

confidence: 99%

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The Multifaceted Role of Jasmonic Acid in Plant Stress Mitigation: An Overview

Rehman,

Saeed,

Fan

et al. 2023

Plants

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Plants, being sessile, have developed complex signaling and response mechanisms to cope with biotic and abiotic stressors. Recent investigations have revealed the significant contribution of phytohormones in enabling plants to endure unfavorable conditions. Among these phytohormones, jasmonic acid (JA) and its derivatives, collectively referred to as jasmonates (JAs), are of particular importance and are involved in diverse signal transduction pathways to regulate various physiological and molecular processes in plants, thus protecting plants from the lethal impacts of abiotic and biotic stressors. Jasmonic acid has emerged as a central player in plant defense against biotic stress and in alleviating multiple abiotic stressors in plants, such as drought, salinity, vernalization, and heavy metal exposure. Furthermore, as a growth regulator, JA operates in conjunction with other phytohormones through a complex signaling cascade to balance plant growth and development against stresses. Although studies have reported the intricate nature of JA as a biomolecular entity for the mitigation of abiotic stressors, their underlying mechanism and biosynthetic pathways remain poorly understood. Therefore, this review offers an overview of recent progress made in understanding the biosynthesis of JA, elucidates the complexities of its signal transduction pathways, and emphasizes its pivotal role in mitigating abiotic and biotic stressors. Moreover, we also discuss current issues and future research directions for JAs in plant stress responses.

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Section: Mitigation Of Heavy Metals Stress Through Jamentioning

confidence: 99%

“…However, when heavy metals (copper, arsenic, zinc, cobalt, chromium, manganese, etc.) are present in the soil, they ultimately disrupt the plant metabolism which results in an inhibition of plant growth [12][13][14][15][16][17]. These heavy metals are highly insoluble and remain in the soil for long periods.…”

Section: Introductionmentioning

confidence: 99%

The Multifaceted Role of Jasmonic Acid in Plant Stress Mitigation: An Overview

Rehman,

Saeed,

Fan

et al. 2023

Plants

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“…The initiation of ethylene production to manipulate plant physiology through ethylene application has shown promising impacts in conferring enhanced tolerance to heavy metal stress in rice plants. The use of ethylene biosynthesis and signaling antagonists, cobalt and silver, along with copper oxide nanoparticles (CuO-NP) at a concentration of 450 mg L −1 , can reduce the extent of ultrastructural and stomatal damage in rice seedlings by controlling the accumulation of reactive oxygen species (ROS) [44]. In rice, ethylene participates in chromium (Cr) stress signaling, as the transcriptomics analysis revealed that the expression of genes related to ethylene biosynthesis such as ACO5, ACO4, ACS2, and ACS1 were increased in rice treated with chromium, suggesting the involvement of ethylene signaling in rice under metal stress [5].…”

Section: Ethylenementioning

confidence: 99%

“…Reduces the extent of ultrastructural and stomatal damage by controlling ROS accumulation in rice seedlings and cellular ultrastructural damages [44] ZnO NPs -Upregulation of ACS2 and ACS6 transcripts responsible for ethylene biosynthesis [47] Mercury and/or Se Selenium (Se)…”

Section: Ethylene Biosynthesis and Signaling Antagonists Cobalt And S...mentioning

confidence: 99%

Novel Insights into Exogenous Phytohormones: Central Regulators in the Modulation of Physiological, Biochemical, and Molecular Responses in Rice under Metal(loid) Stress

Bilal,

Saad Jan,

Shahid

et al. 2023

Metabolites

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Rice (Oryza sativa) is a research model for monocotyledonous plants. Rice is also one of the major staple foods and the primary crop for more than half of the world’s population. Increasing industrial activities and the use of different fertilizers and pesticides containing heavy metals (HMs) contribute to the contamination of agriculture fields. HM contamination is among the leading causes that affect the health of rice plants by limiting their growth and causing plant death. Phytohormones have a crucial role in stress-coping mechanisms and in determining a range of plant development and growth aspects during heavy metal stress. This review summarizes the role of different exogenous applications of phytohormones including auxin, cytokinin, gibberellins, ethylene, abscisic acid, strigolactones, jasmonates, brassinosteroids, and salicylic acids in rice plants for mitigating heavy metal stress via manipulation of their stress-related physiological and biochemical processes, and alterations of signaling and biosynthesis of genes. Exogenous administration of phytohormones and regulation of endogenous levels by targeting their biosynthesis/signaling machineries is a potential strategy for protecting rice from HM stress. The current review primarily emphasizes the key mechanistic phytohormonal-mediated strategies for reducing the adverse effects of HM toxicity in rice. Herein, we have provided comprehensive evidence for the effective role of exogenous phytohormones in employing defense responses and tolerance in rice to the phytotoxic effects of HM toxicity along with endogenous hormonal crosstalk for modulation of subcellular mechanisms and modification of stress-related signaling pathways, and uptake and translocation of metals. Altogether, this information offers a systematic understanding of how phytohormones modulate a plant’s tolerance to heavy metals and may assist in directing the development of new approaches to strengthen rice plant resistance to HM toxicity.

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“…Research focuses on understanding how NPs affect aquatic microorganisms and examining factors such as bioaccumulation, oxidative stress, and disruption of biological processes. Aquatic ecotoxicity research on NPs has increased in recent years, with a greater focus on freshwater compared to other ecosystems, such as salt water and soil [14][15][16][17][18]. Despite the unknown concentrations of most HMs and NPs in the environment, exposure modelling suggests that freshwater and soil could act as significant sinks for these pollutants, accumulating at higher levels than in the air [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Cytotoxicity and Antioxidant Defences in Euplotes aediculatus Exposed to Single and Binary Mixtures of Heavy Metals and Nanoparticles

Varatharajan,

Calisi,

Kumar

et al. 2024

Applied Sciences

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The aim of this study was to analyse the cytotoxicity of heavy metals (HMs) and nanoparticles (NPs) on populations of the ciliated protist Euplotes aediculatus. We used ecotoxicological tests, antioxidant assays, and the MixTOX tool in Microsoft® Excel to evaluate the toxic effect of HMs and NPs in single and binary mixtures on E. aediculatus and to detect the type of interaction between them. Based on our results, the order of toxicity was Cu > Cd >> Zn (1 h and 24 h) for HMs and ZnO > CuO >> TiO2 >> SiO2 (1 h) and CuO > ZnO >> TiO2 >> SiO2 (24 h) for NPs. The interaction between metals in binary mixtures was predominantly synergistic at low doses and antagonistic at high doses. The type of interaction depende on the metals present and their respective concentrations. Furthermore, both HMs and NPs were shown to trigger effective antioxidant responses in E. aediculatus. Our research highlights the importance of considering the combined effects of HMs and NP exposure and their potency in risk assessment.

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Ethylene accelerates copper oxide nanoparticle-induced toxicity at physiological, biochemical, and ultrastructural levels in rice seedlings

Cited by 19 publications

References 63 publications

The Multifaceted Role of Jasmonic Acid in Plant Stress Mitigation: An Overview

The Multifaceted Role of Jasmonic Acid in Plant Stress Mitigation: An Overview

Novel Insights into Exogenous Phytohormones: Central Regulators in the Modulation of Physiological, Biochemical, and Molecular Responses in Rice under Metal(loid) Stress

Cytotoxicity and Antioxidant Defences in Euplotes aediculatus Exposed to Single and Binary Mixtures of Heavy Metals and Nanoparticles

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