韧皮部

The patterns of movement of labelled photoassimilate in the phloem were qualitatively against to the movement of acid fuchin in xylem.

在韧皮部中标记的光合同化物的运输格局与木质部中酸性品红的移动是相反的，具有强烈的向基性。

Using electronic microscopy,the development of secondary phloem SE was investigated in Populus deltoides.

该文以美洲黑杨为实验材料，在电子显微镜下观察研究了次生韧皮部筛管发育过程。

To do some researches on the physiological function of sieve tube elements in secondary phloem,it is key to observe the changes of plasm components during the development of SE.

观察次生韧皮部筛管分子发育过程中原生质组分的变化，对于研究筛管的生理功能具有重要作用。

PXY is expressed within dividing meristematic cells of the procambium, whereas CLE41 localises to the adjacent phloem cells.

PXY在分裂中的原形成层分生细胞中表达，而CLE41定位于毗连的韧皮部细胞。

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

星状中柱：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。

The research of recent years shows that phloem loading and unloading of plant photoassimilate both have symplasmic and apoplasmic pathways. Sugars transported by loading mainly are:(1) raffinose and its analogue,(2) sucrose.

近年来研究表明，植物体内光合同化物的韧皮部装载和卸出均有共质体途径和质外体途径，装载转运的糖类主要有：⑴棉子糖及其类似物；⑵蔗糖。

Aphids belong to Diptera insect pests; they damage plants directly by sucking juice of phloem, and indirectly by spreading plant disease. The plant lectins are proteins that bind reviviscence to specific mono- or oligosaccharides; therefore they have potential in plant genetic engineering.

本研究还克隆了植物凝集素基因，以解决棉花蚜虫的危害问题，蚜虫属同翅目昆虫，通过吸取植物韧皮部的汁液造成直接危害，又通过传播植物病害对植物造成间接危害，植物凝集素是一类具有特异糖结合活性的蛋白，在植物基因工程中具有较大的应用潜力。

For the BM-rice,the sclerenchyma of leaves was shrunken,vascular bundle of leaves was reduced,the strumae of outer epidermis of stem was sparse and the link of phloem of root was loosed and dispersed.

2通过扫描电镜观察，脆性突变水稻的组织结构发生了较大变化：叶片薄壁组织扩张，厚壁组织收缩，维管束数目减少；茎杆外表皮硅质瘤状结构分布稀疏；根中柱韧皮部组织排列稀疏，连接松散。

Sieve element A vascular cell in the PHLOEM, whose function is to transport sugars and other nutrients from the site of production to the site of utilization or storage.

筛分子：植物韧皮部的管状细胞，其功能是将糖类和其它营养物质由产生地运送至被利用或储存的地方。

Other modifications include the uneven thickening of guard cells, the sieve plates in phloem, the suberization of endodermal cells, the waterproof coverings of epidermal and cork cells.

此外还有其他的一些修饰形式，包括不均匀的加厚保卫细胞和韧皮部中的筛板，内皮细胞的栓化等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。