Fig. 6From: Cloning and characterization of KoOsmotin from mangrove plant Kandelia obovata under cold stressCold tolerance analysis of E. coli transformed with KoOsmotin. The E. coli cells was spotted onto LB agar medium. Since the optimal cultured temperature for E. coli was 37 ℃, the cold treatments were performed under 5, 15 and 25 °C, respectively. The four concentration gradients of E. coli cell suspension were shown above the figureBack to article page