Table 1.

Morphological and Cellular Parameters of Wild-Type Inflorescence Meristemsa

Meristem ZonesCell Sizeb (μm)
WSc
L1 layer
Zone A4.4 (0.2)
Zone B4.7 (0.1)
Zone C4.7 (0.1)
Zone D4.7 (0.1)
Zones A+B+C+D4.6 (0.2)
L2 layer
Zone E4.7 (0.2)
Zone F4.5 (0.1)
L3 layer
Zone G5.3 (0.2)
Primordium 35.5 (0.2)
Primordium 45.4 (0.2)
Lerd
L1 layer
Zone A5.0 (0.2)
Zone B5.1 (0.1)
Zone C4.9 (0.1)
Zone D5.2 (0.3)
Zones A+B+C+D5.0 (0.2)
L2 layer
Zone E5.8 (0.3)
Zone F5.0 (0.1)
L3 layer
Zone G5.7 (0.3)
Primordium 35.3 (0.2)
Primordium 45.7 (0.1)
  • a The number of L1 cells (150 for WS and 147 for Ler was deduced from the calculated surface of the average meristem (Figure 3) and the mean L1 cell size.

  • b Cell size was determined by measuring the distance between the nuclei in the subdomains (Figure 4). Mean values and standard deviations for 12 WS and 12 Ler meristems are shown. (Numbers within parentheses indicate standard errors.)

  • c The meristem diameter for WS is 61.8 μm (1.2), and the meristem height is 19.3 μm (0.8) (50 meristems analyzed).

  • d The meristem diameter for Ler is 69.5 μm (0.9), and the meristem height is 15.0 μm (0.5) (49 meristems analyzed).