primary phloem是什么意思

网络释义

用法例句

The present paper deals with the comparative anatomy of secondary phloem of stems in four species of Cupressaceae under light microscope.

在光学显微镜下，比较观察了四种柏科植物茎次生韧皮部的结构，主要结果：１） 柏科植物茎次生韧皮部轴向系统由筛胞，韧皮部薄壁细胞，韧皮纤维（有些种有径向片）组成，径向系统为射线，各组成细胞以单层呈切向带相间排列；２） 根据径向片的有无，纤维细胞种类及树脂道的类型可将侧柏亚科的侧柏与圆柏亚科的其它三个种区分开；３） 圆柏亚科的次生韧皮部中树脂道的形成方式与通常的不同，由已成熟的韧皮部薄壁细胞围合而成；４） 臭柏的筛胞和韧皮纤维其长度明显较同亚科的圆柏和杜松的

A anatomical characters of secondary phloem in Glyptostrobus pensilis (Staunt.

在光学显微镜和扫描电子显微镜下观察,水松茎次生韧皮部的主要特征为:韧皮部由轴向系统和径向系统组成。

Anatomical studies of stem secondary phloem and wood indicate that the Taxaceae,Cephalotaxaceae and Podocarpaceae are natural groups,and it is not necessary to esbablish the new families,Amentotaxaceae and Nageiaceae.

茎次生韧皮部和木材的比较解剖支持红豆杉科、三尖杉科和罗汉松科自然类群、不主张建立穗花杉科和竹柏

Primary phloem PHLOEM derived from the procambium in the young plant.

初生韧皮部：指幼嫩植物中来源于原形成层的韧皮部。

Protophloem The first-formed PRIMARY PHLOEM, differentiated from the procambium in the region just behind the meristem.

原生韧皮部：最早形成的初生韧皮部，由位于分生组织中的原形成层分化而来。

Studies on Developmental Biology of Phloem Ganglion in Phyllostachys Edulis;

毛竹（Phyllostachys edulis）“韧皮部结”的发育生物学研究

The Preliminary Results of Pumpkin CmPP16 (Cucurbita Maxima Phloem Protein 16) Systematic Transportation;

南瓜韧皮部蛋白CmPP16系统运动的初步研究

Physiological Mechanism of Postphloem Sugar Transport in Citrus Fruits

柑橘果实韧皮部后糖的运输生理机制研究

Extraction and Analysis of Secondary Metabolites in Poplar Phloem

杨树韧皮部次生代谢产物的提取与分析

The Research on Secondary Material in Phloem Populus Tomentosa s Isolation and the Resistance to Anoplohora Glabripenni s Larvae;

毛白杨韧皮部次生代谢物质提取分离及对光肩星天牛抗性的研究

SDS-PAGE Analysis of Phase Change-related Proteins in Phloem in Apple(Malus domestica Borhk.)

苹果实生树韧皮部中阶段转变特异蛋白质的SDS-PAGE分析

The results showed that the root transactions had significant differences in periderm, phloem, and xylem between cultivated and wild Salvia miltiorrhiza.

结果表明，在解剖横切面上，栽培与野生丹参根的周皮、韧皮部、木质部具有显著差异。

Haplostele A type of protostele having a solid strand of stele with the xylem on the inside encircled by phloem, pericycle, and endodermis.

单中柱：原生中柱的一种类型，是由韧皮部、中柱鞘和内皮层包围着内方的木质部构成的实心中柱。

The stele includes all primary tissues derived from the procambium consists of pericycle,phloem and xylem.

中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。

deciduous shrub of eastern North America having tough flexible branches and pliable bark and small yellow flowers.

北美洲东部的一种落叶灌木，具有强韧的枝和柔韧的树皮，花

Endomitosis occurs regularly in certain tissues, such as the phloem cells of some leguminous plants.

核内有丝分裂通常发生在特定组织中，如一些豆科植物的韧皮部细胞。

The flexible portion of a whip, such as a plait or thong.

鞭梢鞭子上柔韧易弯曲的部分，如鞭状物或皮鞭

Determination of Odorant in Phloem of Picea abies Karst Young Sapling

挪威云杉幼树韧皮部挥发性物质的测定

Cytological Pathway of Sugar Unloading within Phloem in Jujube Fruit

同化物在枣果实韧皮部卸载的细胞学路径

tough-skinned purple grape-like tropical fruit grown in Brazil.

果皮坚韧的紫色葡萄状的热带水果，生长于巴西。

Pectinase for Cotton Stalk Degumming Bast Fiber of Biological Research

果胶酶用于棉秆韧皮工艺纤维生物脱胶研究