ArticleAnnals of botany2012
Early Zn2+-induced effects on membrane potential account for primary heavy metal susceptibility in tolerant and sensitive Arabidopsis species.
Article in Annals of botany, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 38 citations in OpenAlex.
- Analysis of the Mechanisms Underlying the Specificity of the Variation Potential Induced by Different Stimuli.Plants (Basel, Switzerland) · 2024Article
- A Simple and Rapid Fungal DNA Isolation Assay Based on ZnO Nanoparticles for the Diagnosis of Invasive Aspergillosis.Micromachines · 2020Article
- Convergent evolution in Arabidopsis halleri and Arabidopsis arenosa on calamine metalliferous soils.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Article
- Article
- Oxidative and genotoxic damages in plants in response to heavy metal stress and maintenance of genome stability.Plant signaling & behavior · 2018Article
- Coping With Metal Toxicity - Cues From Halophytes.Frontiers in plant science · 2018Review
- High-Temperature Tolerance of Photosynthesis Can Be Linked to Local Electrical Responses in Leaves of Pea.Frontiers in physiology · 2017Article
- Heavy Metal Tolerance in Plants: Role of Transcriptomics, Proteomics, Metabolomics, and Ionomics.Frontiers in plant science · 2015Review
- Zn2+ -induced changes at the root level account for the increased tolerance of acclimated tobacco plants.Journal of experimental botany · 2014Article
- Many rivers to cross: the journey of zinc from soil to seed.Frontiers in plant science · 2014Review
- Plant root research: the past, the present and the future.Annals of botany · 2012Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsUptake of heavy metals by plant root cells depends on electro-physiological parameters of the plasma membrane. In this study, responses of the plasma membrane in root cells were analysed where early reactions to the metal ion-induced stress are localized. Three different Arabidopsis species with diverse strategies of their adaptation to heavy metals were compared: sensitive Arabidopsis thaliana and tolerant A. halleri and A. arenosa.
methodsPlants of A. thaliana Col-0 ecotype and plants of A. arenosa and A. halleri originating from natural metallicolous populations were exposed to high concentrations of Zn(2+). Plants were tested for root growth rate, cellular tolerance, plant morphology and cell death in the root apex. In addition, the membrane potential (E(M)) of mature cortical root cells and changes in the pH of the liquid culture media were measured. KEY
resultsPrimary roots of A. halleri and A. arenosa plants grew significantly better at increased Zn(2+) concentrations than A. thaliana plants. Elevated Zn(2+) concentrations in the culture medium induced rapid changes in E(M). The reaction was species-specific and concentration-dependent. Arabidopsis halleri revealed the highest insensitivity of the plasma membrane and the highest survival rate under prolonged treatment with extra-high concentrations. Plants were able to effectively adjust the pH in the control, but much less at Zn(2+)-induced lower pH.
conclusionsThe results indicate a similar mode of early reaction to Zn(2+), but with different extent in tolerant and sensitive species of Arabidopsis. The sensitivity of A. thaliana and a high tolerance of A. halleri and A. arenosa were demonstrated. Plasma membrane depolarization was lowest in the hyperaccumulator A. halleri and highest in A. thaliana. This indicates that rapid membrane voltage changes are an excellent tool to monitor the effects of heavy metals.
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