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. 2018 Oct 18;9:1494. doi: 10.3389/fpls.2018.01494

FIGURE 1.

FIGURE 1

Bioassays used to quantify the activation of ProCgNIN and root hair deformation in C. glauca. (A–D) Representative images showing levels of GFP fluorescence in root hairs of transgenic ProCgNIN:GFP C. glauca plants used for the CgNINA bioassay. Arrowheads indicate root hairs. (A) no signal, level 0; (B) weak signal, level 1; (C) medium signal, level 2; (D) strong signal, level 3. (E–I) representative images showing levels of root hair deformation in C. glauca used in the CgRHDF bioassay. (E) no deformation, level 0a; (F) tip swelling, level 0b; (G) one change in growth direction, level 1; (H) more than one change in growth direction but no bifurcation;, level 2; (I) one or more bifurcations, level 3. Arrowheads indicate deformed root hairs.