ArticleScientific reports2017
Evidence for exocellular Arsenic in Fronds of Pteris vittata.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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Who cites it
7 citing papers in PubMed, 37 citations in OpenAlex.
- Effects of Pyrolysis Temperature and Chemical Modification on the Adsorption of Cd and As(V) by Biochar Derived fromInternational journal of environmental research and public health · 2022Article
- Article
- New evidence of arsenic translocation and accumulation in Pteris vittata from real-time imaging using positron-emittingScientific reports · 2021Article
- Arsenic redox transformations and cycling in the rhizosphere ofEnvironmental and experimental botany · 2020Article
- The knowledge domain and emerging trends in phytoremediation: a scientometric analysis with CiteSpace.Environmental science and pollution research international · 2020Article
- Synchrotron-Based X-Ray Fluorescence Microscopy as a Technique for Imaging of Elements in Plants.Plant physiology · 2018Review
- Microbial and Plant-Assisted Bioremediation of Heavy Metal Polluted Environments: A Review.International journal of environmental research and public health · 2017Review
Corrections and comments
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Authors and funding
9 authors at 8 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The arsenic (As) hyperaccumulating fern species Pteris vittata (PV) is capable of accumulating large quantities of As in its aboveground tissues. Transformation to AsIII and vacuolar sequestration is believed to be the As detoxification mechanism in PV. Here we present evidence for a preponderance of exocellular As in fronds of Pteris vittata despite numerous reports of a tolerance mechanism involving intracellular compartmentalization. Results of an extraction experiment show that 43-71% of the As extruded out of the fronds of PV grown in 0.67, 3.3 and 6.7 mM AsV. SEM-EDX analysis showed that As was localized largely on the lower pinna surface, with smaller amounts on the upper surface, as crystalline deposits. X-ray fluorescence imaging of pinna cross-sections revealed preferential localization of As on the pinna surface in the proximity of veins, with the majority localized near the midrib. Majority of the As in the pinnae is contained in the apoplast rather than vacuoles. Our results provide evidence that exocellular sequestration is potentially a mechanism of As detoxification in PV, particularly at higher As concentrations, raising concern about its use for phytoremediation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.