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The intercellular spaces along the wood ray were studied with a light microscope and with a scanning electron microscope. The existence of the intercellular spaces was examined for 109 wood species. T...hen the morphological characteristics of the intercellular spaces were observed. The results are as follows ; 1. Among all of the wood species examined in this study, the intercellular spaces along the ray were observed. 2. The intercellular spaces look like a narrow tube, and are running continuously from bark to xylem through cambium. 3. The cross sectional areas and the relative volumes of the intercellular spaces in wood were measured, and shown in Table 2. 4. Pit-like structures toward the intercellular spaces were observed on the surface of the ray parenchyma lumina, and it seems probably that by these structures the intercellular spaces and the ray parenchyma lumina are interconnected. Consequently, it may be assumed that the intercellular spaces along the ray have played a role of a canal system for the ray parenchyma cells in tree.続きを見る
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