FIG. 6.
Desiccation test with the M. extorquens wild-type AM1, ΔphyR, and complemented ΔphyR/pBG11 strains. Cell viability was tested by spotting dilution series of cells in exponential growth phase on filter paper. Filters were laid on solid minimal medium immediately after a short drying period (control) (A) or after 3 days under a sterile airflow (B). WT, wild type.