Therefore, selenate can be converted into methylselenocysteine
and g-glutamylmethylselenocysteine rapidly by the hyperaccumulator Astragalus bisulcatus (Dunnill and Fowden, 1967; Zhang et al.
thaliana plants expressing a selenocysteine methyltransferase (SMTA) isolated from the Se hyperaccumulator, Astragalus bisculcatus, accumulated methylselenocysteine
and contained up to eight-fold higher Se concentrations than the wild-type plants, when grown on a soil supplemented with selenite (Se[O.
High-selenium yeast contains several different natural anabolic and catabolic forms of organically-bound selenium in addition to SeMet, such as selenocysteine, methylselenocysteine
, and several other selenium compounds, all organically bound.
is a less toxic form, and this would be our choice.