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花粉管

n.pollen tube; spermary
网络fertilization tube

花粉管

花粉管

英-汉网络释义

花粉管

n.

1.pollen tube

2.spermary

1

Since the transgenic technology of pollen tube pathway method was formally established , it has been widely used in crop genetic improvement.

中国学者创立花粉管通道法转基因技术以来，在多种农作物分子育种中得到应用。

3

The pollen tube may grow down the stylar canal, or it may secrete enzymes that digest the tissue of style , creating a path for the tube .

花粉管可能沿着花柱道向下生长，也可能分泌消化酶分解花柱组织，为花粉管创造一个通道。

5

In a gametophytic interaction , the pollen germinates and the growing pollen tube is recognized by the female plant , normally in the style .

在配子体相互作用中，花粉萌发后，通常雌株在花柱中识别生长的花粉管。

6

Enhanced vesicle trafficking is also essential for pollen tube elongation as many molecules must be translocated to the growing tip .

此外，花粉管的延伸，也需要囊泡将细胞壁的组成分子传送到生长尖端。

7

In gametophytic SI , glycoproteins with ribonuclease activity are produced by the S gene , perhaps disabling RNA at the pollen tube tip .

在配子体 SI 中，S 基因合成具有 RNA 酶活性的糖蛋白，可能是该糖蛋白使花粉管的顶端的 RNA 失活。

8

The precursors of these wall molecules , microfibrillar pectins, then accumulate and block the tube .

这些细胞壁分子前体 ——果胶纤丝发生积累并堵塞花粉管。

9

These results provided some references for the application of pollen-tube pathway transformation technology in melon .

本研究结果为花粉管通道法转基因技术在甜瓜上的应用提供了参考依据。

10

Germination of the pollen grain to give the pollen tube usually takes place only when the pollen is compatible with the stigma tissue .

只有当花粉与柱头组织相一致时，花粉粒才会萌发，产生花粉管。

11

In the most widespread SI system in flowering plants , both compatible and incompatible pollen tubes grow down the style .

在有花植物最广泛的配子体 SI 系统中，亲和及不亲和的花粉管都生长到花柱中。

12

This indicated that, donor DNA fragment had inserted into receptor through pollen tube, and affected the expression of genes in receptors.

表明供体 DNA 片段已通过花粉管通道进入受体，并对受体基因的表达产生影响。

13

Generative cell One of the haploid cells in the POLLEN TUBE of seed plants .

是位于种子植物花粉管中的一个单倍体细胞。

14

minute opening in the wall of an ovule through which the pollen tube enters .

卵子表面上使花粉管穿入的小口。

15

Abnormalities of the content and distribution of callose and phenolics are also mentioned.

简要阐述了花粉管胼胝质和酚类含量在硼胁迫时的异常表现。

16

In third stage , at maturing of the embryo sac, pollen tubes grow directionally toward micropyle into embryo sac .

朝珠孔定向生长阶段，胚囊成熟时，花粉管朝珠孔定向生长进入胚囊。

17

Porogamy The usual method of fertilization in angiosperms in which the pollen tube enters the ovule by the micropyle. Compare chalazogamy.

被子植物通常的受精方式。花粉管通过珠孔进入胚珠。比较。

18

The tube nucleus disintegrates as the pollen tube penetrates the nucellus .

另外的粉管核会在花粉管穿过珠心时发生分裂。

20

Pollen tube is defined as the tube through which pollen passes into the ovary .

花粉管定义为花粉进入子房的管道。

21

Effect of various culture media , duration and mode of anther dehiscence on PTD was not significant .

不同培养基和散粉时间、散粉方式对花粉管粗度影响不显著。

22

The research advance of exogenous DNA introduced into maize by pollen-tube pathway was summarized in this paper.

综述了外源 DNA 通过花粉管通道导入玉米的研究进展。

23

But that 's for the pollen tube to come out later on; a very tiny tube .

那是花粉管日后长出来的地方非常细的小管。

24

In seed plants it is the generative cell in the pollen grain , which divides in the pollen tube to produce two sperm cells .

在种子植物中，它是在花粉粒中的生殖细胞，可以在花粉管内分裂形成两个精子。

25

Studies on Pollinating Habit and Pollen Tube Growth Course of Lagerstroemia indica L .

紫薇受粉习性及花粉管生长的研究。

26

In the grasses the pollen tube is blocked at the stigma surface with pectins and callose .

禾本科植物的花粉管在柱头的表面被果胶质和胼胝质堵塞。

27

Compatible pollen tubes reach the ovule where they burst and release the sperm cells .

亲和的花粉管到达胚珠，在胚囊中裂开后释放出精细胞。

28

A serologic reaction retards the growth of the pollen tube .

血清反应阻止花粉管生长。

30

In second stage , after 2-nucleate embryo sac development, most pollen tubes grow radially around ovules.

沿子房径向生长阶段，二核胚囊之后，花粉管在胚珠之间穿梭，以径向生长为主；

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