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Direct evidence showing the effect of root surface iron plaque on arsenite and arsenate uptake into rice (Oryza sativa) roots
Abstract
The present study aimed to investigate the effects of root surface iron plaque on the uptake kinetics of arsenite and arsenate by excised roots of rice (Oryza sativa) seedlings. The results demonstrated that the presence of iron plaque enhanced arsenite and decreased arsenate uptake. Arsenite and arsenate uptake kinetics were adequately fitted by the Michaelis-Menten function in the absence of plaque, but produced poor fits to this function in the presence of plaque. Phosphate in the uptake solution did not have a significant effect on arsenite uptake irrespective of the presence of iron plaque; however phosphate had a significant effect on arsenate uptake. Without iron plaque, phosphate inhibited arsenate uptake. The presence of iron plaque diminished the effect of phosphate on arsenate uptake, possibly through a combined effect of arsenate desorption from iron plaque.
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Citations
Cited by
Zhao, F.-J., McGrath, S. P., & Meharg, A. A. (2010) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-042809-112152 · Cited by 1,246
Self-citationArsenic uptake and metabolism in plants
Zhao, F. J., Ma, J. F., Meharg, A. A., & McGrath, S. P. (2009) · New Phytologist · doi:10.1111/j.1469-8137.2008.02716.x · Cited by 1,185
Self-citationTripathi, R. D., Tripathi, P., Dwivedi, S., Kumar, A., Mishra, A., Chauhan, P. S., Norton, G. J., & Nautiyal, C. S. (2014) · Metallomics · doi:10.1039/c4mt00111g · Cited by 218
Root Iron Plaque on Wetland Plants as a Dynamic Pool of Nutrients and Contaminants
Khan, N., Seshadri, B., Bolan, N., Saint, C. P., Kirkham, M. B., Chowdhury, S., Yamaguchi, N., Lee, D. Y., Li, G., Kunhikrishnan, A., et al. (2016) · Advances in Agronomy · doi:10.1016/bs.agron.2016.04.002 · Cited by 194
Self-citationArsenic hyperaccumulation by aquatic macrophytes in the Taupo Volcanic Zone, New Zealand
Robinson, B., Kim, N., Marchetti, M., Moni, C., Schroeter, L., van den Dijssel, C., Milne, G., & Clothier, B. (2006) · Environmental and Experimental Botany · doi:10.1016/j.envexpbot.2005.08.004 · Cited by 189
Metadata
- Authors
- Chen, Z., Zhu, Y., Liu, W., & Meharg, A. A.
- Venue
- New Phytologist
- Publisher
- Wiley
- Published
- 2004-12-09
- Volume
- 165
- Issue
- 1
- Pages
- 91-97
- ISSN
- 0028-646X (ISSN-L)
- 1469-8137
- OpenAlex
- W2094948285
- Cited by
- 299
- References
- 0
- FWCI
- 3.85
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Direct evidence showing the effect of root surface iron plaque on arsenite and arsenate uptake into rice (Oryza sativa) roots. https://app.cochat.ai/papers/10.1111/j.1469-8137.2004.01241.x
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- Chen, Z., Zhu, Y., Liu, W., & Meharg, A. A. (2005). Direct evidence showing the effect of root surface iron plaque on arsenite and arsenate uptake into rice (Oryza sativa) roots. New Phytologist. https://doi.org/10.1111/j.1469-8137.2004.01241.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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