| A. sacrorum | A. scoparia | A. giraldii | A. annua |
---|---|---|---|---|
Types of leaf cells | Transitional form | Isolateral leaf | Isolateral leaf | Bifacial leaf |
Leaf thickness (μm) | 189.8 ± 1.3b | 206.0 ± 2.1a | 136.7 ± 1.5c | 90.6 ± 1.0d |
Epidermal thickness (μm) |  |  |  |  |
 Upper | 23.6 ± 0.8a | 17.2 ± 0.9b | 16.6 ± 0.8b | 12.7 ± 1.3c |
 Lower | 15.9 ± 1.4a | 15.7 ± 0.4a | 13.8 ± 0.6b | 11.6 ± 0.9c |
Thickness of palisade parenchyma (μm) |  |  |  |  |
 Upper | 77.1 ± 0.5a | 60.2 ± 0.1b | 38.4 ± 0.9c | 28.0 ± 0.5d |
 Lower | – | 47.6 ± 0.4a | 27.8 ± 1.1c | – |
Thickness of spongy parenchyma (μm) | 60.9 ± 1.7a | 65.5 ± 1.5a | 40.0 ± 0.8b | 31.0 ± 0.9c |
TPP/TSP | 1: 0.79 ± 0.02b | 1:0.61 ± 0.05a | 1:0.60 ± 0.04a | 1:1.11 ± 0.02c |
Thickness of cuticles (μm) |  |  |  |  |
 Upper | 7.5 ± 0.9a | 3.7 ± 0.7b | 3.7 ± 0.4b | 3.1 ± 0.3bc |
 Lower | 3.3 ± 0.3a | 2.9 ± 0.5ab | 2.8 ± 0.4ab | 2.7 ± 0.2b |
TPP  % | 40.1 ± 1.1 %c | 52.6 ± 1.1 %a | 49.4 ± 0.8 %ab | 29.6 ± 1.5 %d |
TSP  % | 32.0 ± 1.2 %b | 32.5 ± 0.8 %b | 30.2 ± 0.9 %b | 38.6 ± 1.0 %a |