Figure 4From: The upregulation of thiamine (vitamin B1) biosynthesis in Arabidopsis thaliana seedlings under salt and osmotic stress conditions is mediated by abscisic acid at the early stages of this stress responseTime-dependent changes in the expression of TDP-dependent enzyme genes: E1 components of α-ketoglutarate dehydrogenase (KGDH) and pyruvate dehydrogenase (PDH) complexes, transketolase (TK) and 1-deoxy-D-xylulose-5-phosphate synthase (DXPS). Gene expression was determined by RT-PCR analysis of the leaves of nine day-old seedlings maintained for the specified time on medium supplemented with PQ, NaCl or SOR or without any stressor (C). The asterisk indicates a statistically significant difference when compared with the control (C) samples (t-test, P < 0.05).Back to article page