木质部在维管束植物中的起支撑作用和输水作用的组织，主要由管胞和管道组成；
The supporting and water-conducting tissue of vascular plants, consisting primarily of tracheids and vessels; woody tissue.
中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。
The stele includes all primary tissues derived from the procambium consists of pericycle, phloem and xylem .
中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。
The stele includes all primary tissues derived from the procambium consists of pericycle, phloem and xylem.
次生木质部由孔纹导管、薄壁组织及射线所组成。
Secondary xylem consists of pitted vessels, parenchyma fibers and rays.
构成年轮的组织被称为木质部。
残存的韧皮部也可以脱分化形成愈伤组织，此外，还存在愈伤组织源于木质部的情况。
The rest of phloem also produced callus through dedifferentiation. In addition, there was callus from xylem.
周皮木质根或干的外层组织，包括软木形成层和形成层的产物，如软木。
The outer layers of tissue of woody roots and stems, consisting of the cork cambium and the tissues produced by it, such as cork.
采后枇杷果实衰老过程中的硬度增加与冷害胁迫下的果实组织木质化具有相似的基本特征，但其内在机制可能不同。
The increase in firmness during postharvest loquat fruit senescence showed similar characteristic to tissue lignification of chilling injury, however, the mechanism might be different.
处在酸性垒的原植物次生木质部组织被二氧化硅替换而成硅化木。
The secondary xylem of the original plants in local acidic environment was replaced by silica and turned into fossil woods.
初生木质部与初生韧皮部之间可见到2—3层排列规则或不规则的薄壁组织细胞，但是没有维管形成层的发生。
Between primary xylem and primary phloem there are 2-3 layers of parenchymatous cells, regularly or irregularly arranged, but no cambial zone can be recognized.
维管形成层属于侧生分生组织，包括能够产生次生木质部与次生韧皮部的纺锤状形成层原始细胞和产生髓射线的射线原始细胞。
It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth.
认为棉花植株主要通过促进木质素生成和增加积累量以强化组织结构。
It is deemed that in cotton reinforcing physical structure mainly through promoting lignin synthesis and increasing lignin accumulation.
伸向子叶的子叶迹，直接由原生木质部极外面的一群薄壁组织细胞分化形成。
The extending cotyledon traces differentiate directly from the parenchymatous cells which locate on the outside of the poles of primary xylem.
不同部位的木质化的程度不同，原生木质部中只有轻微的加厚，而在厚壁组织和一些木质部导管中则进一步加厚，平均含25%-30%的木质素和50%的纤维素。
The degree of lignification varies from slight in protoxylem to heavy in sclerenchyma and some xylem vessels, but values of 25-30% lignin and 50% cellulose are average.
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。
Such thickening allows extension of the XYLEM between the rings so that it is not ruptured as the surrounding tissues grow.
瘤组织中的薄壁细胞均增生肥大，木质部的垂直管胞发生变形且变短。
Parenchyma in gall tissues were observed to occur hypertrophy or hyperplasia, and vertical tracheids in gall xylem were short and abnormal in shape.
木质茎的最外层，包括形成层以外全部活的和死的组织。
The outermost layers of a woody stem including all of the living and nonliving tissues external to the cambium.
方法：采用高效液相色谱法，研究不同加工方法对刺五加地下器官（根及根茎）及地上器官不同组织（茎木质部和茎皮部）中的异秦皮啶含量影响规律。
Methods: Effect of different processing methods on content of isofraxidin in root, rhizome and xylem and bark of stern of Acanthopanax senticosus was studied by HPLC.
结果表明：不同直径大小的横走侧根均由周皮、次生维管组织和四原型的初生木质部构成。
The results showed that all the cross branch roots of different sizes consisted of periderm, secondary vascular tissue and tetrarch primary xylem.
木薄壁组织为弥漫型，或在较老的木质部中部分为傍管型；
Organization of wooden thin wall is diffuse model, or be in charge of to draw near partly in older xylem model;
次生生长包括维管组织形成、次生细胞壁形成、木质化、PCD以及心材形成等过程。
The secondary growth includes several consecutive processes such as vascular tissue differentiation, secondary cell wall deposition, lignification, PCD and heart wood formation.
木质素组织包括厚壁组织和木质部。
木质素组织包括厚壁组织和木质部。
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