3.2. NaHCO3inhibits the development of P. expansum
Fresh P. expansum spores were incubated in PDB medium containing NaHCO3 with different concentrations. After 6 h of incubation, average volume of the spores was obviously smaller in the treated group than the control group (Fig. 3c and d). Meanwhile,the spore nucleus was smaller and exhibited a deeper black color after NaHCO3 treatment (Fig. 3a and b). It indicated that spores with NaHCO3 treatment contained more condensed chromatin in nucleuses and showed lower cell viability.