Table I. Phenotypic traits of Col-0 and mir393b-1 plants
Traits AnalyzedMean Value ± semPa
Col-0mir393b-1
28-d-old plants
 Rosette leaves per plant (n = 9)15.9 ± 0.517.9 ± 0.90.031
 Leaf blade length/width (n = 131)1.5 ± 0.031.6 ± 0.030.0007
 Leaf epinastyb (mm; n = 20)1.7 ± 0.13.4 ± 0.10.0001
74-d-old plants
 Rosette leaves per plant (n = 26)55.4 ± 8.760.3 ± 9.60.029
 Senescent leaves per plantc (n = 26)3.6 ± 2.05.5 ± 2.20.0009
  • a One-tailed distribution t test.

  • b Measured by the vertical distance between the adaxial leaf side and the leaf margin.

  • c Diagnosed by the appearance of chlorosis. Senescent leaves appeared more precociously in mir393b-1 plants than in Col-0 plants.