Figure 5.

Cryo-SEM photographs of excised samples of F. mandshurica var japonica after thawing. A, Tangential surface of the current year's earlywood vessels after 1 h of thawing. One vessel lumen is filled with water (asterisk) and another vessel lumen has cavities (arrows). B, Tangential surface of the current year's earlywood vessels after thawing for 6 h. One vessel has a large cavity in its lumen (arrow), and two vessels have a limited amount of water in their lumina. Both bars represent 100 μm.