Fig 5. Effect of AtxA on capsule production in the presence of either AcpA or AcpB.
Spores of the different mutants (top panel) were seeded into 100μl of sDMEM as is or supplemented with 0.75% HCO3- or 10% NRS and incubated at 37°C in 10% CO2 atmosphere (as indicated on the right) for 24h. Capsule was imaged by India ink negative staining (capsule presence forms a typical bright outer layer).