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Arsenic Toxicity: The Effects on Plant Metabolism

Finnegan, Patrick M.; Chen, Weihua


The two forms of inorganic arsenic, arsenate (AsV) and arsenite (AsIII), are easily taken up by the cells of the plant root. Once in the cell, AsV can be readily converted to AsIII, the more toxic of the two forms. AsV and AsIII both disrupt plant metabolism, but through distinct mechanisms. AsV is a chemical analog of phosphate that can disrupt at least some phosphate-dependent aspects of metabolism. AsV can be translocated across cellular membranes by phosphate transport proteins, leading to...[Show more]

CollectionsANU Research Publications
Date published: 2012-06-06
Type: Journal article
Source: Frontiers in Physiology
DOI: 10.3389/fphys.2012.00182


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