FIGURE 6.

Arabidopsis mutants with reduced OEP40 protein display an early flowering phenotype a low temperature conditions. A and B, representative individuals of 64- and 85-day-old-plants of Col-0 wild-type and oep40-1 and oep40-3 homozygous mutant lines grown at 10 °C. C and D, DTB (left) and TLN (right) were recorded in plant lines described in A, B. Plants were grown at 10 °C in C and at 21 °C (day) and 16 °C (night) in D. Bars depict mean numbers ± S.D. of n = 27 individual plants for each line. Asterisks indicate significant differences in DTB and TLN in oep40 mutants compared with Col-0 (Student's t test, p < 0.05). Right graphs, black bars represent rosette leaf (RLN) and white bars cauline leaf numbers (CLN). Please note that first flowers of oep40-1 and oep40-3 appeared about 8–9 days earlier than for Col-0 wild type.