Table 2.

Shoot Apical Meristem Characteristics of Different Genotypes Grown for 30 d in Short Photoperiods

GenotypeLeaves/DayWidth (μm)Height (μm)H4 Positive Cellsa
Wild type0.66 ± 0.03125.2 ± 0.840.3 ± 0.816.0 ± 0.81
cyp78a50.98 ± 0.05*125.8 ± 0.939.6 ± 0.819.1 ± 1.3*
Pro35S:MIR156f1.07 ± 0.08*125.7 ± 1.138.8 ± 0.817.1 ± 0.89
ProSPL9:rSPL90.23 ± 0.01*96.9 ± 2.1*32.2 ± 1.1*11.4 ± 0.78*
  • n = 10 for all genotypes. sd is given. Asterisks indicate significant difference from the wild type (Student's t test with Bonferroni correction, P < 0.015).

  • a Number of Histone H4 positive cells per longitudinal section.