Changes in manganese content in Lactobacillus plantarum during inhibition with sodium nitrite

Lactobacillus plantarum ATCC e8014 and L. plantarum (MC) were sensitive to NO under anaerobic conditions. This sensitivity was linked to an increase in cell-associated manganese levels. Normal manganese levels under aerobic conditions in the presence of NO were 1 × 10 atoms/cell. Under anaerobic conditions with NO , these levels increased to 3 × 10 to 2 × 10 atoms/cell depending on the sensitivity of lactobacilli to NO . This study suggests that in trace metal metabolism, NO may stimulate uptake or transport of ions such as manganese.