vascular bundles
[植] 维管束
2025-11-02 01:56 浏览次数 15
[植] 维管束
1. a strand of specialized vascular tissue of higher plants consisting mostly of xylem and phloem
The nutrient transported from dorsal vascular bundles first unloaded into apoplast via nucellar projection, then was absorbed by aleurone layer cells;
由背部维管束运来的养分经珠心突起先卸至质外体,其后再由糊粉层细胞吸收;
The effects of the panicle length, branch distribution, number of spikelets, seed set percentage, neck vascular bundles and plant weight per stem on spikelet number per panicle were analyzed.
分析了穗长、枝梗分布、枝梗颖花数及其结实率、穗部维管束数目和开花期单茎干物重对穗粒数的影响。
The vascular bundles in stereid layer or Parechymatous cell layer of lateral margin of its testa provide the testa development with water and nutrition.
合欢种皮侧缘厚壁(薄壁)细胞层中有维管束,它为种皮的发育提供水分与营养。
In Calocedrus and Platycladus, only a single series of inverted vascular bundles were generated in the adaxial side of the bract scale;
在苞鳞中只形成一组倒转的维管束,如侧柏属和翠柏属;
The phloems rage alternate with xylems. There are mucus cells and crystal cells in cortex of root. And vascular bundles scatter in stem.
鸭跖草的木质部为六原型,韧皮部与木质部相同排列,根皮层中分布有粘液细胞和晶体细胞。
The number of vascular bundles in neck-panicle was mainly controlled by genetic factors.
穗颈维管束数主要受遗传因素控制,环境条件的影响相对较小。
It is revealed that SCC is effective for ANFH and multiple vascular bundles transplant should be added for the hip with more serious damage.
表明生脉成骨胶囊对缓解ANFH是有效的,病情轻的可以单纯内服中药治疗,病情重的宜在服药基础上行多血管束植入手术。
The vascular cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium.
维管形成层向两侧延伸直至形成一个茎内的分生组织环,各个维管束被束间形成层联系在一起。
There are 5~8 vascular bundles arranged in arch shape. Secretory cavities are present in the ground tissue of petiole.
叶柄的基本组织中具有裂生分泌腔,5~8束维管束呈弧形排列或散布在薄壁组织中;
Morphological structure and the development of nodular vascular bundles of Coriaria nepalensis Wall. were studied by microscopical techniques.
以生物制片和光学显微技术研究了尼泊尔马桑根瘤维管束的形态结构和发育特点。
It is because the vascular bundles in its rachilla and lodicules were undeveloped, the transport system was abnormal. and the lodicules absorbed and lost water difficultly.
这与其小穗轴和浆片中的维管束发育不良、辅导系统不发达、浆片不易吸水与失水等原因有关。
Their internal structures consist of air passages, vascular bundles of various size, ground tissues and sclerenchyma.
它们的内部结构是由气道、不同大小的维管束、基本组织以及厚壁组织组成。
There were 3 big vascular bundles and 5~7 small vascular bundles in young stem, and there were 2~3 small vascular bundles between two big vascular bundles, they were all arranged in circularity.
茎的初生维管束中有3大束和5~7小束,两个大维管束之间夹有2~3个小维管束,所有维管束在茎的横切面上呈环状排列;
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。
Vein One of the vascular bundles in a leaf. The pattern in which the veins are arranged in a leaf is called the VENATION.
叶脉:叶片中的维管束结构。在叶片中,所有叶脉排列的方式称脉络。
The vascular bundles of the primary structure in stem are ring arranged, and the node is unilacunar and 3-traced, which is from three vascular bundles or one vascular bundle.
茎的初生结构中多个维管束排列成环状,节部为单隙三迹,叶迹分别来自于3条维管束或同一条维管束。
Results show that the large parenchymatous cells of vascular bundles are the mainly storage site of aloin.
结果表明,叶维管束内的大型薄壁细胞为芦荟素的主要贮存结构。