A Study of Longitudinal Variation of Vascular Bundles Distribution Density and Fiber Sheath Tissue Proportion in Internode of Moso Bamboo
Li Jing1,2, Huang Hanxiao1,2, Shi Junli1,2, He Ying1,2, Wang Hankun1,2
1. Department of Biomaterials, International Center for Bamboo and Rattan, Beijing, 100102, China; 2. NFGA and Beijing Co-built Key Laboratory of Bamboo and Rattan Science & Technology, National Forestry and Grassland Administration, Beijing 100102, China
Abstract:Taking the Moso bamboo (Phyllostachys pubescens) as the research object, the paper studied the longitudinal variation of vascular bundle distribution density and fiber sheath tissue proportion in bamboo internodes. The cross-section of bamboo rings were obtained through fine sandpaper polishing combined with high-definition (HD) scanning method. Image-pro Plus and other image processing software were used to collect the data on cross-section size of bamboo node, the number of vascular bundles, fiber sheath area and the others, to calculate the distribution density of vascular bundles and fiber sheath tissue proportion in bamboo internodes. The results showed that the method of fine sandpaper polishing combined with HD scanning were accurate and feasible for the calculation of the number and area of vascular bundles. The distribution density of internode vascular bundles and the tissue proportion of fiber sheath in upper part of the same culm were larger than those in the lower part. Within the same internode, the distribution density of vascular bundle and the tissue proportion of fiber sheath also increased slightly with the growth of internode. The distribution density of vascular bundle and fiber sheath tissue proportion in the bamboo internodes increased with the height of culm.
黎静, 黄汉霄, 石俊利, 何莹, 王汉坤. 竹环中维管束分布密度和纤维鞘组织比量纵向变异研究[J]. 世界竹藤通讯, 2019, 17(2): 7-11.
Li Jing, Huang Hanxiao, Shi Junli, He Ying, Wang Hankun. A Study of Longitudinal Variation of Vascular Bundles Distribution Density and Fiber Sheath Tissue Proportion in Internode of Moso Bamboo. World Bamboo and Rattan, 2019, 17(2): 7-11.
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