Figure 2.

Hairy roots expressing GFP under the control of the ZCT1 promoter show weak basal expression without hormone treatment and increased fluorescence throughout the whole root after treatment with 1 mM MJ. Images show GFP fluorescence of hairy root lines. Hairy roots were treated with ethanol (Mock) or with MJ (1 mM). GFP fluorescence was detected 3 days after the treatment using fluorescence microscopy. The No‐GFP control line lacks a GFP gene and shows weak autofluorescence. pZCT1::GFP (#2 and #8) are two independent hairy root lines with GFP driven by the ZCT1 promoter