Figures & data
Figure 1. Effects of ABA on root photomorphogenesis.
(A) Effects of fluridone on primary root growth. Seedlings germinated and grown on horizontal MS-agar plates for 3 days were transferred to vertical MS-agar plates containing 100 μM fluridone, an inhibitor of ABA biosynthesis, for additional 10 days in the light. Fifteen measurements of primary root lengths were statistically analyzed using Student t-test (*P < 0.01). Bars indicate standard deviation of the mean (SD).(B) Primary root growth of grafted seedlings between Col-0 plants and aba1-6 mutant. Grafted seedlings were grown for 2 weeks on MS-agar plates in the light before measurements of primary root lengths. Different letters represent a significant difference (P < 0.01) determined by one-way analysis of variance (ANOVA) with post hoc Tukey test. Bars indicate SD.(C) Schematic model illustrating ABA function in root photomorphogenesis and interactions of the roots with plant growth-promoting rhizobacteria (PGPR).
