期刊
JOURNAL OF STRUCTURAL BIOLOGY
卷 136, 期 2, 页码 101-109出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1006/jsbi.2001.4434
关键词
image analysis; Picea abies; cell shape; X-ray diffraction; wood
The orientation of cellulose microfibrils in the cell wall and the shape and the dimensions of the cells of earlywood of four Norway spruce (Picea abies [L.] Karst.) stems grown in Finland were studied by X-ray diffraction and optical microscopy. The average microfibril angle (MFA) decreased and the diameter of the cell increased rapidly up to rings 5-10 from the pith and remained at the same level after that. The average MFA close to the pith was over 20degrees and decreased to about 8degrees after ring 10 from the pith. The average diameter of the cells was 35 mum in the outer rings. The shape of the cross section of the lumen changed from circular to rectangular from the pith to the bark. The tracheid length increased also as a function of the distance from the pith. The thickness of the cell wall varied between 2.8 and 3.5 mum. Automatic cell lumen and cell wall recognition procedures were developed for the analysis of the images of the cross sections of the cells. (C) 2001 Elsevier Science (USA).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据