(A) Trichome formation on 2-week-old Arabidopsis third leaves of wild-type Col-0 and GL3::SlGL3 (#1, #2, #3, #4 and #5). (B) Trichome formation on 2-week-old Arabidopsis third leaves of wild-type Col-0, gl3-7454 mutant and CPC::SlTRY in gl3-7454 (#1, #2, #3, #4 and #5). Number of trichomes per leaf was determined by counting a minimum of five 2-week-old third leaves from each line. (C) Root hair formation in 5-day-old Arabidopsis seedlings of wild-type Col-0 and GL3::SlGL3 (#1, #2, #3, #4 and #5). (D) Root hair formation in 5-day-old Arabidopsis seedlings of wild-type Col-0, gl3-7454 mutant and CPC::SlTRY in gl3-7454 (#1, #2, #3, #4 and #5). The number of root hairs per mm was determined by counting a minimum of ten 5-day-old seedlings from each line. Error bars indicate the standard error. Bars marked with asterisks indicate a significant difference between the wild-type Col-0 and the transgenic lines [(A), (C)], or the gl3-7454 mutant and the transgenic lines [(B), (D)] by Student’s t-test (P<0.050). Trichome phenotypes of gl3-7454 (E), GL3::SlGL3 (F), and GL3::SlGL3 in gl3-7454 (G). Root hair phenotypes of gl3-7454 (H), GL3::SlGL3 (I), and GL3::SlGL3 in gl3-7454 (J). Scale bars: 1 mm.