The Twin-Positive Motif Is Specifically Important for cpHsc70-1 Functions in Roots.
(A) and (C) Seeds of Col, Δcphsc70-1 (Δ70-1), 70-1g, and two independent lines of 70-1gKRAA (#5-2 and #6-7) were heat-shock-treated and grown for 7 d (A) or 14 d (C) on MS-agar medium. Bars = 1 cm.
(B) Quantification of the root lengths of plants shown in (A). Data shown are means ± sd (n ≥ 86 plants). Values with the same letter do not differ significantly according to one-way ANOVA (Supplemental Data Set 5) with Tukey’s multiple comparison test (P < 0.0001).
(D) Quantification of the chlorophyll contents of plants shown in (C). Data shown are means ± sd (n = 4 independent experiments). Values with the same letter do not differ significantly according to one-way ANOVA (Supplemental Data Set 5) with Tukey’s multiple comparison test (P < 0.0001).