Figure 5.

Putative Role of NO in the Regulation of the MEP Pathway.

(A) Representative photographs of Col and rif1-1 seedlings germinated and grown for 5 d on MS plates containing a NO donor (50 μM SNP) or a NO donor analog as a control (50 μM SFC) and either supplemented (+) or not (−) with 50 μM FSM.

(B) Immunoblot analysis of DXR levels in samples grown without FSM as described for (A). The position of the DXR protein is indicated with an arrowhead. The unspecific band recognized by the antibody is also shown as a loading control.