Figure 6.

Expression of the flavohaemoglobins and nitrate reductase genes in media containing nitrate or ammonium as sole nitrogen source early during conidiation. A . nidulans wild‐type strain was grown vegetatively in ammonium liquid minimal medium for 18 h and then transferred to nitrate (dark grey bars) or ammonium (light grey bars) solid medium to induce conidiation. Samples were taken at the indicated time points for RNA isolation. fhb A , fhb B and nia D expression was quantified by real time RT‐PCR. Data were normalised against the expression of the ß‐tubuline gene (ben A). The plots show the average and standard error of the mean of the relative expression values in at least three independent experiments.