Lack of CO2 induces coccoid transformation of HP cells. Hp 26695 was cultured in liquid medium for 12 h under various gas conditions. After staining with membrane-permeant SYTO 9 (green) and membrane-impermeant PI (red), cells were visualized by confocal microscopy. Data shown are representative of five independent experiments.
Park et al. BMC Microbiology 2011 11:96 doi:10.1186/1471-2180-11-96