Table 1.
Root zonation and meristem size determination of the first stem-borne root of Ceratopteris richardii. (A) The meristematic zone ends when cells begin to elongate. The change in cell elongation can be detected by measuring length of the outer cortex layer. Both measurements were assessed by using a paired student’s t test. (B) The Ceratopteris first stem-borne root meristem size is seven cells in average at 30 daf.
| A | Cell Size | B | Cell Number | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Length (µm) | Width (µm) | n | |||||||
| Mean | SD (+/−) | Mean | SD (+/−) | Mean | SD (+/−) | n | |||
| Meristematic Zone |
16.32 | 2.42 | 18.36 | 2.28 | 20 | 7.00 | 1.34 | 50 | |
| Elongation/Differentiation Zone | 36.79 | 12.09 | 25.22 | 3.62 | |||||