Figure 6 | Scientific Reports

Figure 6

From: A combination of scanning electron microscopy and broad argon ion beam milling provides intact structure of secondary tissues in woody plants

Figure 6

Transverse sections of tension wood and opposite wood of Quercus phillyraeoides. (a,b) Broad argon ion beam (BIB)-milled cross-section of tension wood. The cell lumens of wood fibers are reduced in size compared to those of opposite wood because of the gelatinous layer (G-layer) development. G-layers easily damaged by cutting stress were not observed as cutting artifacts over a wide range. (c,d) BIB-milled cross-section of opposite wood (non-reaction wood). Wood fibers have relatively large lumens and bordered pits. (e,f) Microtome cross-sections of tension wood. The G-layer and lumen are distorted due to mechanical stress. Detachment of the G-layer and numerous cracks are observed in a large area of the cross-section. (g,h) Razor blade-cut cross-section of tension wood. The G-layers are completely detached from the secondary walls. Scale bars = 50 µm (a, c, e, g) or 10 µm (b, d, f, h).

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