Expression of Arabidopsis phytochelatin synthase 2 is too low to complement an AtPCS1-defective Cad1-3 mutant.


Phytochelatins play an important role in heavy metal detoxification in plants as well as in other organisms. The Arabidopsis thaliana mutant cad1-3 does not produce detectable levels of phytochelatins in response to cadmium stress. The hypersensitivity of cad1-3 to cadmium stress is attributed to a mutation in the phytochelatin synthase 1 (AtPCS1) gene… (More)


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