Figure 1

Representative images of stomatal apertures in lettuce plants under simulated microgravity in absence (A) and presence of Salmonella (B). Lettuce plants were subjected to simulated microgravity in a clinostat at 2, and 4 RPM, or a 0 RPM vertical control. Plants were inoculated with Salmonella enterica GFP strain. Unrotated plants infected with S. enterica were also imaged for stomatal apertures. Average stomatal apertures were micro-graphed and aperture size was estimated from n = 150 stomates per sample.