Figure 3: mRFP expression in Armillaria mellea.

Armillaria mellea ELDO17 WT mycelia viewed under (a) bright field and (b) viewed with the mRFP epifluorescent filter showing no fluorescence. Armillaria mellea transformed with pCAM-hph-Amgpd-ximRFP (transformant ELDO17-Amgpd-ximRFP1) viewed under bright field (c,e) and viewed with mRFP epifluorescent filter showing bright, consistent mRFP fluorescence (d,f). Mycelia were examined using a x40 objective lens in (a–d) and with a ×10 objective lens in (e,f).