The nucleotidase/phosphatase SAL1 is a negative regulator of drought tolerance in Arabidopsis
Wilson, Philippa; Estavillo, Gonzalo; Field, Katie; Pornsiriwong, Wannarat; Carroll, Adam; Howell, Katharine A; Woo, Nicholas; Lake, Janice A; Smith, Steven M; Millar, A. Harvey; Pogson, Barry; von Caemmerer, Susanne
An Arabidopsis thaliana drought-tolerant mutant, altered expression of APX2 (alx8), has constitutively increased abscisic acid (ABA) content, increased expression of genes responsive to high light stress and is reported to be drought tolerant. We have identified alx8 as a mutation in SAL1, an enzyme that can dephosphorylate dinucleotide phosphates or inositol phosphates. Previously identified mutations in SAL1, including fiery (fry1-1), were reported as being more sensitive to drought imposed...[Show more]
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|Source:||The Plant Journal|
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