Three-dimensional reconstruction of maize roots and quantitative analysis of metaxylem vessels based on X-ray micro-computed tomography
文献类型： 外文期刊
第一作者： Pan, Xiaodi
作者： Pan, Xiaodi;Ma, Liming;Zhang, Ying;Wang, Jinglu;Du, Jianjun;Guo, Xinyu
作者机构：
关键词： maize root; metaxylem vessel; X-ray micro-computed tomography; three-dimensional reconstruction; image segmentation
期刊名称：CANADIAN JOURNAL OF PLANT SCIENCE （ 影响因子：1.018； 五年影响因子：1.242 ）
ISSN： 0008-4220
年卷期： 2018 年 98 卷 2 期
页码：
收录情况： SCI
摘要： Roots play an essential role in the acquisition of water and nutrients from soils in higher plants. Root anatomical traits have significant effects on root functions, including water transportation within the root system. Traits such as the size of xylem vessels influence axial water flow by controlling water conductance directly. Currently, two-dimensional microscopic images are often used to acquire root anatomical features; however, three-dimensional (3-D) anatomical analysis, which offers information of spatial distribution and connection relationships throughout root tissues, is hardly reported. We performed 3-D reconstruction and visualization of maize (Zea mays L.) root tissues based on X-ray micro-computed tomography and developed an image processing workflow for 3-D segmentation of metaxylem vessels. Three-dimensional quantitative analysis of metaxylem vessels from the first to the sixth whorl of maize crown roots was performed according to this procedure. The performance of this procedudure, based on accuracy validation, indicated that it was capable of making accurate analysis of root metaxylem vessel traits.
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