Table 1. Density of Plasmodesmata on Cell Interfaces of C3 and C4 Species.
Species | Mean Cell Interface Area (µm2) | Mean Pitfield Area per Cell Interface (µm2) | Mean Pitfield Area per Cell Interface Area (%) | PD per µm2 Pitfield | PD per µm2 Cell Interface | PD Area per Cell Interface Area (%) |
---|---|---|---|---|---|---|
M-BS cell interface | ||||||
Rice, C3 | 609 ± 25a | 17 ± 1a | 2.8 ± 0.1a | 35.0 ± 0.4a | 1.0 ± 0.1a | 0.6 ± 0.02a |
Wheat, C3 | 2704 ± 150b | 149 ± 28b | 5.5 ± 0.3b | 46.9 ± 1.0b | 2.6 ± 0.1b | 2.0 ± 0.03b |
S. viridis, C4 | 486 ± 14c | 61 ± 5c | 12.7 ± 0.3c | 72.8 ± 0.9c | 9.3 ± 0.2c | 6.2 ± 0.07c |
Maize, C4 | 1203 ± 32d | 137 ± 11b | 11.4 ± 0.3d | 66.1 ± 0.7d | 7.5 ± 0.2d | 5.4 ± 0.06d |
M-M cell interface | ||||||
Rice, C3 | 249 ± 9e | 10 ± 2d | 4.1 ± 0.1e | 38.7 ± 0.4e | 1.6 ± 0.1e | 1.0 ± 0.02e |
Wheat, C3 | 2246 ± 183b | 83 ± 16c | 3.7 ± 0.2e | 41.3 ± 0.7f | 1.5 ± 0.1e | 1.2 ± 0.02f |
S. viridis, C4 | 375 ± 7f | 32 ± 2e | 8.5 ± 0.1f | 75.2 ± 0.8c | 6.4 ± 0.1f | 4.2 ± 0.05g |
Maize, C4 | 810 ± 17g | 117 ± 6b | 14.4 ± 0.2g | 77.5 ± 0.6g | 11.2 ± 0.2g | 8.0 ± 0.07h |
Numbers in the “PD per μm2 Pitfield” column are the sum of slopes and intercepts shown in Figure 6. Statistical differences according to MATLAB two-sample t test or SPSS Statistics software at P value < 0.05 are indicated by letters. Values indicated by the same letter within a column are not statistically different.