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. 2017 Aug 8;8:1352. doi: 10.3389/fpls.2017.01352

FIGURE 2.

FIGURE 2

BiFC kinase interaction assays. BiFC visualization of MKKK20 dimerization with MKK3 and MPK18 in onion epidermal cells. Fluorescent (A,C,E,G) and bright field (B,D,F,H) images of epidermal leaf onion cells cotransformed by vectors harboring split YFP and different kinase pairs: MKKK20/MKK3 (A,B); MKKK20/MPK18 (C,D); MKK3/MPK18 (E,F). Microparticle bombardment was observed under a fluorescence microscope. Full-length cDNAs from the three kinases were cloned in-frame with a split-YFP construct from either BiFC vector pUC-SPYCE or pUC-SPYNE (Walter et al., 2004). The bZIP63 transcription factor was used as positive control for BiFC (G,H). Scale bar = 20 μm.