Chromium-51 distribution in tissues and extracts of Leptospermum scoparium

Abstract

Leptospermum scoparium plants cultured in solutions containing Na₂ ⁵¹CrO₄ accumulated most of the absorbed radioactivity in the roots. About one third of the root radioactivity was soluble in 80% ethanol in the form of three ⁵¹Cr-complexes, the predominant one being identified as trioxalatochromate (III) ion. These complexes were also present in stem and leaf extracts. ⁵¹Cr distribution was examined in various chemical fractions; protein and nucleic acids were especially low in radioactivity.