“Trace Metabolites”–Effect of High Concentrations on Leishmania tarentolae Promastigotes*

SYNOPSIS. Relatively high concentrations (10–100 μM) of chromate, selenate, and vanadate ions accelerated growth of Leishmania tarentolae in a chemically defined medium containing taurine as the sole sulfur source. These ions also enhanced the incorporation of ³⁵S]taurine label in whole cell, 10% trichloroacetic acid insoluble, and 10% trichloroacetic acid soluble cell fractions.