Where they occur interspersed with the xylem they may be distinguished from tracheids by their narrower lumen 纤维分布与木质部相似，其狭窄的腔可与管胞区分开来。
It is an important pathway for movement of these substances outside the xylem , for example across the root cortex 质外体是木质部外方物质运动的一个重要途径，例如物质穿过根冠。
In the graft combination of at9 on lew2 - 1 , the phenotype of collapsed xylems in the lew2 - 1 stock could be improved greatly Lew2 - 1为不规则木质部突变体，表型为木质部导管塌陷。
The correlation between the reducing sugar content in phloem and xylem and the ratio of damaged trees was not close 不同杨树品系韧皮部和木质部的还原糖含量与被害株率没有相关性。
Such thickening allows extension of the xylem between the rings so that it is not ruptured as the surrounding tissues grow 这样的加厚允许木质部在环间沿展，当周围组织生长时，不会破裂。
Dynamic changes of lignin deposition in secondary xylem cell wall during secondary xylem differentiation in populus tomentosa carr 人工林毛白杨次生木质部细胞分化过程中木质素沉积的动态变化
Intrafascicular cambium ( fascicular cambium ) the part of the vascular cambium within the vascular between the xylem and phloem 束中形成层：是位于木质部和韧皮部构成的维管束内的一部分维管形成层。
Effects of soil bulk density on aba concentration in xylem sap and stomatal conductance of maize zea mays l . plant under different soil water conditions 下层土壤容重对玉米根系生长及吸收活力的影响
Lumen the central space that remains , surrounded by cell walls , in a cell that has lost its living contents ( e . g . in xylem elements ) 胞腔：由细胞壁围成的空腔，其中的活性物质消失（如木质部中的管状分子） 。
Comparative anatomical studies on the vessel elements in the secondary xylem of juglandaceae from china and discussion on their evolutionary position 国产胡桃科次生木质部导管分子的比较解剖及其系统位置的讨论
