Characterization of Selenium Accumulation, Localization and Speciation in Buckwheat-Implications for Biofortification.

ABSTRACT: Buckwheat is an important crop species in areas of selenium (Se) deficiency. To obtain better insight into their Se metabolic properties, common buckwheat (Fagopyrum esculentum) and tartary buckwheat (F. tataricum) were supplied with different concentrations of Se, supplied as selenate, selenite, or Astragalus bisulcatus plant extract (methyl-selenocysteine). Se was supplied at different developmental stages, with different durations, and in the presence or absence of potentially competing ions, sulfate, and phosphate. The plants were analyzed for growth, Se uptake, translocation, accumulation, as well as for Se localization and chemical speciation in the seed. Plants of both buckwheat species were supplied with 20 μM of either of the three forms of Se twice over their

SUBMITTER: Jiang Y 

PROVIDER: S-EPMC6220067 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature