The coding sequences (CDS) of BrERF2 and BrERF109 full-length without the stop codon were amplified and fused with the pCAMBIA1300 vector. The recombinant plasmids (35S:BrERF2-GFP and 35S:BrERF109-GFP) or the control vector (35S: GFP), and nuclear marker NLS-RFP (NLS, nuclear localization sequence) were co-transformed into Agrobacterium. Then, the Agrobacterium containing 35S:BrERF2-GFP, 35S:BrERF109-GFP or 35S: GFP was injected into the suction of 4- to 6-week-old tobacco (Nicotiana benthamiana) blade with a 1 mL syringe without needle. The GFP fluorescence was observed by Axioskop 2 Plus fluorescence microscope (Zeiss, Oberkochen, Germany) at 48 h of infiltration [20 (link)].
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