ArticleJournal of plant research2016
Lead tolerance mechanism in Conyza canadensis: subcellular distribution, ultrastructure, antioxidative defense system, and phytochelatins.
Article in Journal of plant research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 52 citations in OpenAlex.
- Heavy metal transformation in mangrove ecosystems: a multi-scale perspective from intertidal dynamics to plant adaptive responses.Forestry research · 2026Review
- Lead-induced changes in plant cell ultrastructure: an overview.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025Review
- Pb uptake, accumulation, and translocation in plants: Plant physiological, biochemical, and molecular response: A review.Heliyon · 2024Review
- Differential Gene Expression and Metabolic Pathway Analysis ofInternational journal of environmental research and public health · 2022Article
- Biodegradation of Di-n-butyl phthalate in rhizosphere and growth-promoting effect of Cucumis sativus Linn. by a novel Pseudomonas sp. DNB-S1.Ecotoxicology (London, England) · 2021Article
- Melatonin-assisted phytoremediation of Pb-contaminated soil using bermudagrass.Environmental science and pollution research international · 2021Article
- Human Health Risk Assessments of Trace Metals on the ClamInternational journal of environmental research and public health · 2020Article
- Assessment of phytostabilization potential of two Salix L. clones based on the effects of heavy metals on the root anatomical traits.Environmental science and pollution research international · 2020Article
- Bacteria Sphingobium yanoikuyae Sy310 enhances accumulation capacity and tolerance of cadmium in Salix matsudana Koidz roots.Environmental science and pollution research international · 2020Article
- Trophic transfer and bioaccumulation of lead along soil-plant-aphid-ladybird food chain.Environmental science and pollution research international · 2019Article
- Growth, accumulation, and antioxidative responses of two Salix genotypes exposed to cadmium and lead in hydroponic culture.Environmental science and pollution research international · 2019Article
- In-situ localization and biochemical analysis of bio-molecules reveals Pb-stress amelioration in Brassica juncea L. by co-application of 24-Epibrassinolide and Salicylic Acid.Scientific reports · 2019Article
- Uptake, transport and distribution of molybdenum in two oilseed rape (Brassica napus L.) cultivars under different nitrate/ammonium ratios.Journal of Zhejiang University. Science. B · 2017Article
- Subcellular Compartmentalization and Chemical Forms of Lead Participate in Lead Tolerance ofFrontiers in plant science · 2017Article
- Changes in subcellular distribution and antioxidant compounds involved in Pb accumulation and detoxification in Neyraudia reynaudiana.Environmental science and pollution research international · 2016Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We used hydroponic experiments to examine the effects of different concentrations of lead (Pb) on the performance of the Pb-tolerable plant Conyza canadensis. In these experiments, most of the Pb was accumulated in the roots; there was very little Pb accumulated in stems and leaves. C. canadensis is able to take up significant amounts of Pb whilst greatly restricting its transportation to specific parts of the aboveground biomass. High Pb concentrations inhibited plant growth, increased membrane permeability, elevated antioxidant enzyme activity in roots, and caused a significant increase in root H2O2 and malondialdehyde content. Analysis of Pb content at the subcellular level showed that most Pb was associated with the cell wall fraction, followed by the nucleus-rich fraction, and with a minority present in the mitochondrial and soluble fractions. Furthermore, transmission electron microscopy and energy dispersive X-ray analysis of root cells revealed that the cell wall and intercellular space in C. canadensis roots are the main locations of Pb accumulation. Additionally, high Pb concentrations adversely affected the cellular structure of C. canadensis roots. The increased enzyme activity suggests that the antioxidant system may play an important role in eliminating or alleviating Pb toxicity in C. canadensis roots. However, the levels of non-protein sulfhydryl compounds, glutathione, and phytochelatin did not significantly change in either the roots or leaves under Pb-contaminated treatments. Our results provide strong evidence that cell walls restrict Pb uptake into the root and act as an important barrier protecting root cells, while demonstrating that antioxidant enzyme levels are correlated with Pb exposure. These findings demonstrate the roles played by these detoxification mechanisms in supporting Pb tolerance in C. canadensis.
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