查询词典 xylem

Before xylem mother cells reactivated completely , the dividing fusiform cells in cambium and new phloem cells ha .

在木质部母细胞完全恢复活动之前，形成层纺锤状原始细胞的分裂和韧皮部细胞的分化已经开始。

Before xylem mother cells reactivated completely, the dividing fusiform cells in cambium and new phloem cells had appeared at the same time.

在木质部母细胞完全恢复活动之前，形成层纺锤状原始细胞的分裂和韧皮部细胞的分化已经开始。

With age adding, the area ratio of phloem and xylem decreases in Ch.smyrnioides . Differentiation of vascular cambium is active in 3～4 years root.

不同年龄的明党参主根随根龄的增加，韧皮部与木质部的比例减小，维管形成层在三至四年生根中活动最旺盛。

Capillarity The rise or fall of liquids in narrow tubes as a result of the surface tension of the liquid, which causes the water to adhere to solid surfaces, such as soil particles or the walls of xylem vessels.

毛细现象：由液体表面张力引起的液体在细管中上升或下降的现象，毛细现象引起水和固体表面的粘合作用，例如土壤颗粒或木质部导管壁。

Centripetal xylem differentiates from the outside toward the center, and a centripetal inflorescence (e.g. the capitulum) is one in which the outer flowers open before those in the center.

向心的木质部的分化是从外向内的，向心式的花序是外面的花比中央的花先开放。

The results showed that Hyphae, conidiophore, conidium and chlamydospore of biocontrol strains ZK7 and IPC were found in the rhizoplane, Hyphae of ZK7 and IPC penetrated epidermal cells to deep cortical cells but not in phloem tissue and xylem vessels, biocontrol strains ZK7 and IPC also crossed and even grew within epidermal and conical cell walls without any visible alterations of the plant cell.

生防菌ZK7和IPC菌株能以菌丝方式稳定定殖于烟草根表的根冠区、伸长区、根毛区、成熟区等不同部位，而在根内的定殖仅局限于根表皮层较深的细胞组织，不能侵入烟草根部的韧皮部和木质部组织。

The Cork was consisted of five or six layer long cells. The secondary phloem occupied 46% of the diameter of root, and the parenchymas cell was abundant of the inclusions. The secondary xylem consisted of vessel, xylary radial ,and a little of xylary parenchyma cells. Some segment of hypha, swelled hypha, pelotons and conidiophore were colonied in cork and secondary phloem.

周皮由木栓层，木栓形成层和栓内层组成，其中木栓层由5～6 列长形细胞组成；维管组织中次生韧皮部所占根径的比例达46%，其薄壁细胞中内含物较丰富，次生木质部中分布有导管和木射线及少量木薄壁组织；在格木木栓层和次生韧皮部中分布有菌丝片段、膨大的菌丝和菌丝团及分生孢子。

In contrast to xylem components , sieve tube elements have nonlignified cell walls , and a living enucleate without a nucleus protoplast .

与木质部组分不同，筛管分子具有未木质化的细胞壁，没有核但有活的原生质体，因此是活细胞。

Shows that of all types casparian strip exits in endodermis and evident pith does in young root; primary xylem is exarch and tetrarch

结果表明：内皮层都具有凯氏带，幼根均具有明显的髓，初生木质部均为外始式四原型；

A diarch or triarchsiphonostele with exarch primary xylem was found at lower cotyledonary node zone.

果表明：银杏幼苗的轴向器官以子叶节区下部的初生维管结构先建立，其中柱类型是外始式二原型或三原型管状中柱

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。