Manganese acquisition by Lactobacillus plantarum.

  title={Manganese acquisition by Lactobacillus plantarum.},
  author={Frederick S Archibald and Michel Duong},
  journal={Journal of bacteriology},
  volume={158 1},
Lactobacillus plantarum has an unusually high Mn(II) requirement for growth and accumulated over 30 mM intracellular Mn(II). The acquisition of Mn(II) by L. plantarum occurred via a specific active transport system powered by the transmembrane proton gradient. The Mn(II) uptake system has a Km of 0.2 microM and a Vmax of 24 nmol mg-1 of protein min-1. Above a medium Mn(II) concentration of 200 microM, the intracellular Mn(II) level was independent of the medium Mn(II) and unresponsive to oxygen… CONTINUE READING