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
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
英英解释
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.
是位于树干中部的硬质区域,由已不涉及水分传输的木质部导管构成。
Procedurally , xylem pressure potentials can be measured by cutting a stem from a plant and placing it in a pressure bomb apparatus.
程序,木质部压力潜力可以通过削减源于植物和安置它测量在取样压力计用具。
Out of the xylem, there is lot of fiber and the tannin crystal distributes around the air cavity.
叶脉中厚壁组织发达,木质部外纤维数量众多,在气腔周围有单宁结晶分布。
The recently developed xylem-pressure probe technique is the only means to directly measure negative pressure in xylem conduits.
此外,木质部压力探针技术是目前唯一可以直接测定导管或管胞中负压的工具。
According above, diagram of a hypothetical pathway during secondary xylem differentiation was raised.
进而由这些结果提出了木质部细胞分化机理的大致模型。
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。
The distribution of As in the pinna showed that As had great abilities to be transported in xylem vessels and from xylem to mesophyll.
的分布情况如羽片显示,有很大的能力,在木质部运输船只和木质部,以叶肉。
The early formed secondary xylem was characterized by a large number of wood fiber cells with non woody cell wall.
早期生成的次生木质部以细胞壁尚未木质化的木纤维细胞数量居多为特征。
In older stems, only the most recent rings of xylem participate in the transport of materials. These make up the sapwood.
在老茎中,仅最新的木质部环参与物质的运输。这些木质部环组成边材。
The xylem sap of bottle gourd No. 3 as rootstock was the best one to promote grafting seedling of cucumber to grow significantly.
华瓠杂3号做砧木的嫁接苗伤流液对黄瓜苗的生长有明显的促进作用;
A system confined to the transport of mineral elements is known as the xylem.
专门用来运输矿物元素的系统称为木质部。
Actinostele A type of protostele in which the xylem is star shaped and the phloem lies between the points of the star.
原生中柱的一种类型。木质部是星形的,韧皮部位于星形之间。
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。更详细。
Summertime bud grafting can be cut take shoot piece, or take xylem shoot less piece, in stock bine dry place decorticates.
夏季芽接可削取芽片,或少带木质部芽片,在砧木茎干处剥皮。
Herb refers to xylem not developed careless qualitative or meat, and the ground of stem blight was mostly in part of the plant body.
草本是指具有木质部不甚发达的草质或肉质的茎,而其地上部分大都于当年枯萎的植物体。
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和显微照相的方法对阳桃次生木质部导管分子进行了观察研究。
The xylem of the root is tetrarch, lateral root initiate the in metaxylem radiating angle opposite to pericycle cell.
根木质部为四原型,侧根发生于木质部放射角所对的中柱鞘细胞;
Shoot-applied 45Ca was rapidly translocated to all leaves of excised shoots through the xylem transpiration stream.
施用于切断枝条之断端之钙-45迅速的经过导管之蒸散流运移至枝条上所有的叶片。
More secondary phloem than secondary xylem in carrot Parenchyma predominates in vascular tissues .
在胡萝卜根,薄壁细胞在维管组织中占主导地位,次生韧皮部比次生木质部更发达。
The study of the stem's secondary xylem of Rhus chinensis Mill reveals that perforation plate is simple perforation plate.
对盐肤木茎进行木材解剖学研究,发现其导管分子穿孔板为单穿孔板。
Observation and Study of Vessel Elements of Secondary Xylem in.
次生木质部导管分子观察研究。
The broad-leaved wood is mainly composed of vessel, wood fiber, axial parenchyma and xylem ray. The structure is complicated.
阔叶树材主要由导管、木纤维、轴向薄壁组织、木射线等组成,构造较复杂。
Tannin, phenol and flavone contents in the xylem showed no significant correlation with the damaged trees rate.
木质部中的单宁、黄酮及总酚含量与被害株率也不存在相关关系。
On the evolution of secondary xylem and its significance in plant phylogeny.
次生木质部的进化与植物系统发育的关系。
Bicollateral bundle The arrangement of tissues in the vascular bundles in which the phloem is situated on both sides of the xylem.
是初生木质部的内,外方都有初生韧皮部分布的一种维管束排列方式。
The secondary xylem of trees and shrubs, lying beneath the bark and consisting largely of cellulose and lignin.
位于树皮下的树和灌木的次木质部,主要由纤维质和木质构成
Result The active component content in phloem was the highest, while, successively, in pith and in xylem.
结果大黄中的活性成分含量以韧皮部最高,髓部次之,木质部最低。
The phloem, not the xylem, is the supplier of water to flowers and certain other organs.
韧皮部,而不是木质部,是供应商的水花卉和其他一些器官。
The positive xylem pressure, often occurs with low transpiration rate, is termed as root pressure.
在植物弱蒸腾情况下,木质部的水分处于正压状态,这种压力叫根压。
Both xylem and phloem form a continuous branched system in the whole plant body.
木质部和韧皮部在植物体内构成一个连续的分支系统。更详细。
Protoxylem The PRIMARY XYLEM elements that are formed from the procambium first.
初生木质部的成分,最早由原形成层形成。
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处理也明显缓解了根际低温对木质液流速的限制,这可能和地上部叶片蒸腾作用的提高有关。
The cell fiber changing xylem, are also especial much. and metaphloem are also especial good.
罗布麻的纤维细胞木质化强度也特别高,韧性特别好。
Result: The phellem, phloem and xylem of wild bupleurum scorzonerifolium are different from those in the pharmacopoeia .
结果:野生狭叶柴胡的木栓层,韧皮部,木质部的显微特征均于药典上的记载有所不同。
A root- like structure lacking conductive tissues ( xylem and phloem ) .
无输导组织(木质部和韧皮部)的根状结构。
It is a key feature in the movement of water through the xylem and through the finer pores of the soil.
毛细现象是水份沿木质部和土壤空隙运输的重要特征。
Lignified tissues include SCLERENCHYMA and XYLEM.
木质素组织包括厚壁组织和木质部。
MethodsThe vessel elements in stem of Sophora japonica were observed by duct of stem's secondary xylem under biomicroscope.
方法以一年生枝条为材料,对国槐次生木质部中的导管分子进行了观察。
The vascular cambium is located between the xylem and the phloem.
维管形成层位于木韧之间。
Results There are compound vascular bundles in the xylem of the root of Euphorbia ebracteolata which are distributed as homocentric circles.
结果:月腺大戟根木质部中存在复合维管束,略呈同心环状排列。