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Metabolism of selenomethionine in selenium accumulator and non-accumulator astragalus species Original Research Article
Biochimica et Biophysica Acta (BBA) - General Subjects, Volume 130, Issue 1,Office Enterprise 2007, 29 November 1966, Pages 45-55
T. K. Virupaksha,Office 2007 Enterprise, A. Shrift, H. Tarver
Abstract
The metabolism of selenomethionine in Astragalus crotalariae (a selenium-accumulating species) differs from that in Astragalus lentiginosus (a non-accumulator). After the administration of [75Se]selenomethionine and [Me-14C]selenomethionine to excised leaves of A. crotalariae, Se-methylselenomethionine,Cheap Office 2007, Se-methylselenocysteine,microsoft Office 2010 License, and selenohomocystine were identified as the soluble components. A. lentiginosus formed mainly Se-methylselenomethionine,Microsoft Office Professional Plus 2010, and a seleno peptide all of whose constituent amino acids have not been identified.
When [35S]methionine was administered to A. crotalariae a small amount was converted to S-methylmethionine but most was recovered as methionine. Homocrystine and S-methylcysteine were not formed in detectable amounts.