marginally significantp = 0.06
Significant increases in gene expression were observed by RT-qPCR for the microarray up-regulated genes psaB , gdhA , glnQ , sp_0858 , pdx1 and sp_1992 (p<0.05), marginally significant for sp_1914 (p = 0.06) and insignificant for the remaining eight genes (p>0.05).