ArticleBMC plant biology2024
Low concentrations of methyl jasmonate promote plant growth and mitigate Cd toxicity in Cosmos bipinnatus.
Article in BMC plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Jasmonic Acid and Salicylic Acid in Regulating Plant Cadmium Accumulation and Tolerance: Mechanisms and Crosstalk.Plants (Basel, Switzerland) · 2026Review
- Oxalic acid in root exudates confers lead tolerance in Medicago sativa L. via rhizosphere chelation and cellular detoxification.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026Article
- Exogenous Hormones Affect the Corm Expansion ofPlants (Basel, Switzerland) · 2026Article
- The molecular mechanism of the α-linolenic acid metabolism pathway in rice in response to Cd stress.BMC plant biology · 2026Article
- WGCNA identifies key genes involved in methyl jasmonate-mediated tolerance to mercury stress in maize (Zea mays L.).BMC plant biology · 2026Article
- Methyl jasmonate and ascorbic acid enhance salinity tolerance in pot marigold (Calendula officinalis L.) through improved morphophysiological and biochemical traits.Scientific reports · 2025Article
- Synergistic remediation of cadmium and BDE-209 co-contaminated soil usingFrontiers in microbiology · 2025Article
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Authors and funding
15 authors.
Funding
Abstract
Cadmium (Cd) is a biologically non-essential heavy metal, a major soil pollutant, and extremely harmful to plants. The phytohormone methyl jasmonate (MeJA) plays an important role in plant heavy-metal resistance. However, the understanding of the effects of MeJA supply level on alleviating Cd toxicity in plants is limited. Here, we investigated how MeJA regulated the development of physiological processes and cell wall modification in Cosmos bipinnatus. We found that low concentrations of MeJA increased the dry weight of seedlings under 120 µM Cd stress by reducing the transport of Cd from roots to shoots. Moreover, a threshold concentration of exogenous MeJA increased the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) in plant roots, the concentration of Cd in the root cell wall, and the contents of pectin and hemicellulose 1 polysaccharides, through converting Cd into pectin-bound forms. These results suggested that MeJA mitigated Cd toxicity by modulating root cell wall polysaccharide and functional group composition, especially through pectin polysaccharides binding to Cd, with effects on Cd transport capacity, specific chemical forms of Cd, and homeostatic antioxidant systems in C. bipinnatus.
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