Fig. 6

Growth phenotype and ureide accumulation in the ups1 and ups2 mutants. a Early flowering of ups1 and ups2 mutants. Representative plants for each genotype are shown at 4 WAG. Bar = 5 cm. Number of rosette leaves when the primary inflorescence stems were about 1 cm long (n ≥ 28). b Growth of representative plants and dry weight (DW) for each genotype at 9 WAG (n ≥ 12). Bar = 10 cm. c Ureide concentrations in aboveground tissue. Seven WAG plants were cut into leaf blades, petioles, cauline leaves, inflorescence stems, and siliques, and allantoin and allantoate levels were determined on a DW basis (n = 3). A linear model with the genotype as a factor was fitted to the data. Asterisks denote significant differences between WT and mutant plants (*P < 0.05, **P < 0.01, ***P < 0.001, two-tailed t-tests based on the model)