Fig. 3From: Intra-annual dynamics of cambial and xylem phenology in subalpine conifers at Deogyusan National Park in the Republic of KoreaSample preparation process. a collection of micro-samples using a Trephor, b cutting a cross-section of the embedded micro-samples in PEG2000 (polyethylene glycol 2000) using a sliding microtome of thickness 6–12 μm, and c observation of thin sections under light (left) and polarized microscopes (right) to identify the cambial zone and xylem cells during enlarging, cell-wall thickening, and mature phases (scale bars, 100 μm)Back to article page