Fig. 4

Panel a Scanning electron microscope (SEM) image of wet surface biofilms of P. aeruginosa before drying at 16 °C Panel b DSB of P. aeruginosa 24 h after drying at 16 °C Panel c DSB of P. aeruginosa 48 h after drying at 16 °C Panel d DSB of P. aeruginosa 72 h after drying at 16 °C Panel e DSB of P. aeruginosa 96 h after drying at 16 °C Panel f DSB of P. aeruginosa 120 h after drying at 16 °C. Magnification: 10,000X