ArticleEnvironmental science and pollution research international2020
Effects of ethylene biosynthesis and signaling on oxidative stress and antioxidant defense system in Nelumbo nucifera G. under cadmium exposure.
Article in Environmental science and pollution research international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 32 citations in OpenAlex.
- Systematic analysis of the physiological and molecular responses of foxtail millet (Physiology and molecular biology of plants : an international journal of functional plant biology · 2025Article
- Production of secondary metabolites under challenging environments: understanding functions and mechanisms of signalling molecules.Frontiers in plant science · 2025Review
- Genome-wide identification and analysis of ERF transcription factors related to abiotic stress responses in Nelumbo nucifera.BMC plant biology · 2024Article
- Gene Expression Analysis for Drought Tolerance in Early Stage of Potato Plant Development.Biology · 2024Article
- Decrypting Molecular Mechanisms Involved in Counteracting Copper and Nickel Toxicity in Jack Pine (Plants (Basel, Switzerland) · 2024Article
- Exogenous plant growth regulator and foliar fertilizers for phytoextraction of cadmium with Boehmeria nivea [L.] Gaudich from contaminated field soil.Scientific reports · 2023Article
- Full-Length Transcriptome Sequencing Reveals the Molecular Mechanism ofAntioxidants (Basel, Switzerland) · 2023Article
- The Early Oxidative Stress Induced by Mercury and Cadmium Is Modulated by Ethylene inAntioxidants (Basel, Switzerland) · 2023Article
- Instigating prevalent abiotic stress resilience in crop by exogenous application of phytohormones and nutrient.Frontiers in plant science · 2023Review
- Review of the Mechanisms by Which Transcription Factors and Exogenous Substances Regulate ROS Metabolism under Abiotic Stress.Antioxidants (Basel, Switzerland) · 2022Review
- Ethylene Signaling under Stressful Environments: Analyzing Collaborative Knowledge.Plants (Basel, Switzerland) · 2022Review
- Review
- Ethylene Acts as a Negative Regulator of the Stem-Bending Mechanism of Different Cut Snapdragon Cultivars.Frontiers in plant science · 2021Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
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Abstract
Water contamination with cadmium (Cd) is a global environmental problem and its remediation becomes urgent. Phytoremediation using ornamental plants has attracted much attention for its advantages of cost-effectiveness and beautification of the environment. Nelumbo nucifera G. is a popular ornamental aquatic macrophyte with fast growth, large biomass, and high capacities for Cd accumulation and removal. However, information about Cd resistance and defense responses in N. nucifera is rather scarce, which restricts its large-scale utilization for phytoremediation. The phytohormone ethylene plays an important role in plant resistance to Cd stress, but the underlying mechanism remains unclear. In this study, we investigated morphophysiological responses of N. nucifera seedlings to Cd stress, and focused on the effects of ethylene on oxidative damage, Cd accumulation, and antioxidant defense system at the metabolic and transcript levels in leaves under Cd stress. Our results showed that Cd exposure led to leaf chlorosis and necrosis, coupled with an increase in contents of hydrogen peroxide, electrolyte leakage, and malondialdehyde, and decrease in chlorophyll content. Exogenous ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC) application intensified Cd-induced stress responses and Cd accumulation, and increased ethylene production by inducing ACC synthase (ACS) gene NnACS. Such enhanced ethylene emission inhibited catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR) activities, and modulated ascorbate (AsA) and glutathione (GSH) accumulation through transcriptional regulation of their respective metabolic genes. After ethylene action inhibitor silver thiosulfate (STS) supplementation, Cd-induced oxidative damage was abolished, and Cd content declined but still at a relatively high level. Blocking of ethylene perception by STS inhibited ethylene biosynthesis; enhanced CAT, APX, and GR activities and their transcript levels; increased AsA accumulation via inducing its biosynthetic genes; but reduced GSH content and NnGSH2 expression level. These results suggest that ethylene biosynthesis and signaling play an important role in N. nucifera response to Cd stress, and maintaining appropriate ethylene level and low ethylene sensitivity could improve its Cd tolerance via efficient antioxidant defenses.
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