An Arabidopsis mutant of inositol pentakisphosphate 2-kinase AtIPK1 displays reduced arsenate tolerance.

Abstract excerpt

Arsenate [As(V)] toxicity is considered to be derived from similarities in the chemical properties of As(V) and phosphate (Pi). An Arabidopsis thaliana mutant of inositol pentakisphosphate 2-kinase (AtIPK1), atipk1-1, has previously exhibited lower level of phytate and higher level of Pi, relative to wild-type (WT). Here, atipk1-1 displayed hypersensitivity to As(V) stress and less As(V) uptake when compared to...

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