ArticleJournal of experimental botany2008
Enhanced root-to-shoot translocation of cadmium in the hyperaccumulating ecotype of Sedum alfredii.
Article in Journal of experimental botany, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed.
- Interaction of Microplastics, Plants, and Rhizosphere: A Critical Review.Molecules (Basel, Switzerland) · 2026Review
- Identification of a PFAS hyperaccumulator and elucidation of its translocation mechanism for sustainable phytoremediation.Nature communications · 2025Article
- Cloning, characterization, and spatio-temporal expression patterns of HdhSPARC and its responses to multiple stressors.Scientific reports · 2024Article
- Role ofLife (Basel, Switzerland) · 2022Article
- Effects of magnetically treated Sedum alfredii seeds on the dissolved organic matter characteristics of Cd-contaminated soil during phytoextraction.Environmental science and pollution research international · 2022Article
- Metalloprotein-Specific or Critical Amino Acid Residues: Perspectives on Plant-Precise Detoxification and Recognition Mechanisms under Cadmium Stress.International journal of molecular sciences · 2022Review
- Suppression ofInternational journal of molecular sciences · 2021Article
- The distribution and impact of polystyrene nanoplastics on cucumber plants.Environmental science and pollution research international · 2021Article
- A Single Amino Acid Change in Nramp6 from Sedum Alfredii Hance Affects Cadmium Accumulation.International journal of molecular sciences · 2020Article
- Methods to Visualize Elements in Plants.Plant physiology · 2020Review
- Plant Cadmium Resistance 2 (SaPCR2) Facilitates Cadmium Efflux in the Roots of HyperaccumulatorFrontiers in plant science · 2020Article
- Article
- Site-specific regulation of transcriptional responses to cadmium stress in the hyperaccumulator, Sedum alfredii: based on stem parenchymal and vascular cells.Plant molecular biology · 2019Article
- Bioconcentration and translocation of Cd and Hg in a tomato (Solanum lycopersicum) from cultivated soils in southeastern Brazil.Environmental monitoring and assessment · 2019Article
- Sulfate supply enhances cadmium tolerance in Vicia faba L. plants.Environmental science and pollution research international · 2018Article
- Phytomanagement of trace metals in mangrove sediments of Hormozgan, Iran, using gray mangrove (Avicennia marina).Environmental science and pollution research international · 2018Article
- Cadmium Exposure-Sedum alfredii Planting Interactions Shape the Bacterial Community in the Hyperaccumulator Plant Rhizosphere.Applied and environmental microbiology · 2018Article
- Identification, Expression Analysis of the Hsf Family, and Characterization of Class A4 inInternational journal of molecular sciences · 2018Article
- Sedum alfredii SaNramp6 Metal Transporter Contributes to Cadmium Accumulation in Transgenic Arabidopsis thaliana.Scientific reports · 2017Article
- Field crops (Ipomoea aquatica Forsk. and Brassica chinensis L.) for phytoremediation of cadmium and nitrate co-contaminated soils via rotation with Sedum alfredii Hance.Environmental science and pollution research international · 2017Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sedum alfredii (Crasulaceae) is the only known Cd-hyperaccumulating species that are not in the Brassica family; the mechanism of Cd hyperaccumulation in this plant is, however, little understood. Here, a combination of radioactive techniques, metabolic inhibitors, and fluorescence imaging was used to contrast Cd uptake and translocation between a hyperaccumulating ecotype (HE) and a non-hyperaccumulating ecotype (NHE) of S. alfredii. The K(m) of (109)Cd influx into roots was similar in both ecotypes, while the V(max) was 2-fold higher in the HE. Significant inhibition of Cd uptake by low temperature or metabolic inhibitors was observed in the HE, whereas the effect was less pronounced in the NHE. (109)Cd influx into roots was also significantly decreased by high Ca in both ecotypes. The rate of root-to-shoot translocation of (109)Cd in the HE was >10 times higher when compared with the NHE, and shoots of the HE accumulated dramatically higher (109)Cd concentrations those of the NHE. The addition of the metabolic inhibitor carbonyl cyanide m-chlorophenylhydrazone (CCCP) resulted in a significant reduction in Cd contents in the shoots of the HE, and in the roots of the NHE. Cd was distributed preferentially to the root cylinder of the HE but not the NHE, and there was a 3-5 times higher Cd concentration in xylem sap of the HE in contrast to the NHE. These results illustrate that a greatly enhanced rate of root-to-shoot translocation, possibly as a result of enhanced xylem loading, rather than differences in the rate of root uptake, was the pivotal process expressed in the Cd hyperaccumulator HE S. alfredii.
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