%0 Journal Article
%A HUANG Xiao
%A LI Wei-Guo
%A WANG Xiang-Jun
%A WANG Ya-Jie
%A ZENG Xian-Zhen
%A ZHANG Yuan-Yuan
%T Wood Ultrastructure Observation of Rubber Tree (<i>Hevea brasiliensis</i> Muell.Arg.) Young Stem
%D 2018
%R 10.7525/j.issn.1673-5102.2018.06.011
%J Bulletin of Botanical Research
%P 876-885
%V 38
%N 6
%X Rubber tree(<i>Hevea brasiliensis</i> Muell. Arg.) is an important economic crop in China's tropical regions. Rubber wood, a by-product of rubber cultivation, is an important source of timber supply in China. Using scanning electron microscopy, we studied the ultrastructure of xylem cells of rubber tree young stems which develop in different stages. The results showed that in the wood of rubber tree young stem, the cell wall of the vessel and wood fiber were thickened obviously with the development and maturation of the xylem. Spiral thickening was the main thickening method. There were a large number of pits in the cell wall of xylem cells. The main modes of the arrangement of the pits are scattered, reticular, ladder-shaped, and pearl-like. During the development of xylem, starch granules will gradually accumulate in the ray and some parenchyma cells. There are different types of attachments on the surface of xylem cell wall. These results will provide a theoretical reference for the studies of rubber wood property and its formation mechanism.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2018.06.011