xylem

xylem

美 ['zaɪləm]  英 ['zaɪləm]

  • n.木质部(植物中将水分和矿物质从根部向上输送的组织)
  • 网络本质部;莱默;植物的木质部

英汉双解

n.
1.
木质部(植物中将水分和矿物质从根部向上输送的组织)the material in plants that carries water and minerals upwards from the root

英汉解释

n.
1.
【植】木质部

英英解释

n.

例句

Heartwood(duramen) The hard central region of a tree trunk made up of xylem vessels that are no longer involved in water transport.

位于树干中部区域涉及水分传输导管构成

Procedurally , xylem pressure potentials can be measured by cutting a stem from a plant and placing it in a pressure bomb apparatus.

程序压力潜力可以通过削减源于植物安置测量取样压力用具

Out of the xylem, there is lot of fiber and the tannin crystal distributes around the air cavity.

叶脉组织发达纤维数量众多周围单宁结晶分布

The recently developed xylem-pressure probe technique is the only means to directly measure negative pressure in xylem conduits.

此外压力探针技术目前唯一可以直接测定导管工具

According above, diagram of a hypothetical pathway during secondary xylem differentiation was raised.

进而这些结果提出细胞分化机理大致模型

Such thickening allows extension of the XYLEM between the rings so that it is not ruptured as the surrounding tissues grow.

这样加厚允许沿周围组织生长不会破裂

The distribution of As in the pinna showed that As had great abilities to be transported in xylem vessels and from xylem to mesophyll.

分布情况显示很大能力运输船只

The early formed secondary xylem was characterized by a large number of wood fiber cells with non woody cell wall.

早期生成次生细胞尚未纤维细胞数量居多特征

In older stems, only the most recent rings of xylem participate in the transport of materials. These make up the sapwood.

最新参与物质运输这些组成边材

The xylem sap of bottle gourd No. 3 as rootstock was the best one to promote grafting seedling of cucumber to grow significantly.

3砧木嫁接黄瓜生长明显促进作用

A system confined to the transport of mineral elements is known as the xylem.

专门用来运输矿物元素系统称为

Actinostele A type of protostele in which the xylem is star shaped and the phloem lies between the points of the star.

一种类型韧皮部位于之间

Where they occur interspersed with the xylem they may be distinguished from tracheids by their narrower lumen.

纤维分布相似狭窄区分开来详细

Summertime bud grafting can be cut take shoot piece, or take xylem shoot less piece, in stock bine dry place decorticates.

夏季芽接砧木剥皮

Herb refers to xylem not developed careless qualitative or meat, and the ground of stem blight was mostly in part of the plant body.

草本具有发达肉质地上部分大都当年枯萎植物

The vessel elements of secondary xylem in Averrhoa carambola are observed by bio-microscope image analysis system and micrography .

运用细胞图象分析系统显微照相方法阳桃次生导管分子进行观察研究

The xylem of the root is tetrarch, lateral root initiate the in metaxylem radiating angle opposite to pericycle cell.

原型侧根发生放射细胞

Shoot-applied 45Ca was rapidly translocated to all leaves of excised shoots through the xylem transpiration stream.

用于切断枝条-45迅速经过导管枝条所有叶片

More secondary phloem than secondary xylem in carrot Parenchyma predominates in vascular tissues .

胡萝卜根薄壁细胞维管组织主导地位次生韧皮部次生发达

The study of the stem's secondary xylem of Rhus chinensis Mill reveals that perforation plate is simple perforation plate.

盐肤木进行木材解剖学研究发现导管分子穿孔穿孔

Observation and Study of Vessel Elements of Secondary Xylem in.

次生导管分子观察研究

The broad-leaved wood is mainly composed of vessel, wood fiber, axial parenchyma and xylem ray. The structure is complicated.

阔叶树主要导管纤维轴向薄壁组织射线组成构造复杂

Tannin, phenol and flavone contents in the xylem showed no significant correlation with the damaged trees rate.

单宁含量存在相关关系

On the evolution of secondary xylem and its significance in plant phylogeny.

次生进化植物系统发育关系

Bicollateral bundle The arrangement of tissues in the vascular bundles in which the phloem is situated on both sides of the xylem.

初生外方初生韧皮部分布一种管束排列方式

The secondary xylem of trees and shrubs, lying beneath the bark and consisting largely of cellulose and lignin.

位于树皮灌木主要纤维构成

Result The active component content in phloem was the highest, while, successively, in pith and in xylem.

结果大黄活性成分含量韧皮部最高次之最低

The phloem, not the xylem, is the supplier of water to flowers and certain other organs.

韧皮部不是供应商花卉其他一些器官

The positive xylem pressure, often occurs with low transpiration rate, is termed as root pressure.

植物蒸腾情况水分处于状态这种压力

Both xylem and phloem form a continuous branched system in the whole plant body.

韧皮部植物体内构成一个连续分支系统详细

Protoxylem The PRIMARY XYLEM elements that are formed from the procambium first.

初生成分最早形成形成

Using 6-BA improved the xylem sap exudation rate in root stress, maybe this had some connection with the increase of leaves transpiration.

6-BA处理明显缓解低温流速限制可能地上叶片蒸腾作用提高有关

The cell fiber changing xylem, are also especial much. and metaphloem are also especial good.

罗布麻纤维细胞强度特别韧性特别

Result: The phellem, phloem and xylem of wild bupleurum scorzonerifolium are different from those in the pharmacopoeia .

结果野生柴胡木栓层韧皮部显微特征药典记载有所不同

A root- like structure lacking conductive tissues ( xylem and phloem ) .

输导组织韧皮部结构

It is a key feature in the movement of water through the xylem and through the finer pores of the soil.

毛细现象水份沿土壤空隙运输重要特征

Lignified tissues include SCLERENCHYMA and XYLEM.

质素组织包括组织

MethodsThe vessel elements in stem of Sophora japonica were observed by duct of stem's secondary xylem under biomicroscope.

方法枝条材料次生导管分子进行观察

The vascular cambium is located between the xylem and the phloem.

形成位于木韧之间

Results There are compound vascular bundles in the xylem of the root of Euphorbia ebracteolata which are distributed as homocentric circles.

结果存在复合管束同心环状排列