查询词典 pollen

Objective To investigate the influence of Bee pollen of Brassica on immune functions of normal mice.

目的 观察油菜蜂花粉对正常小鼠免疫功能的影响。

In 1827, upon observing a suspension of pollen grains in water, he discovered BROWNIAN MOTION.

在1827年，在观察水中悬浮的花粉粒时，发现了布朗运动。

The Brownian movement of pollen also shows fractal characteristics.

和谐花粉的布朗运动轨迹也具有分形特征。

Callose An insoluble polysaccaride that is laid down around the perforations in sieve plates, at wound or infection sites, and by growing pollen tubes.

callose 胼胝质：在植物筛管的筛域上存在的一种由不溶性的多糖物质积聚而形成的结构。

This paper briefly describes the progress in cytoplasm reorganization, dynamics of wall callose, starch granules and organelles in pollen grains, the tapetum development, specific genes, asymmetric division and cell fate determination in developing pollens. Some problems and future research directions are pointed out in this review.

本文针对花粉发育过程中的细胞质改组；胼胝质壁、淀粉粒和细胞器的动态变化；绒毡层的发育；花粉发育特异基因；以及不对称分裂和细胞命运等几个生物学问题的研究进展作了简要综述，最后还提出了一些研究展望。

This paper briefly describes the progress in cytoplasm reorganization, dynamics of wall callose, starch granules and organel les in pollen grains, the tapetum development, specific genes, asymmetric division and cell fate determination in developing pollens. Some problems and future research directions are pointed out in this review.

本文针对花粉发育过程中的细胞质改组；胼胝质壁、淀粉粒和细胞器的动态变化；绒毡层的发育；花粉发育特异基因；以及不对称分裂和细胞命运等几个生物学问题的研究进展作了简要综述，最后还提出了一些研究展望。

Sometimes, a few of pollen tubles could enter into styles through stigmas, but abnormal callose could deposit in the tubes.

结果表明，诸葛菜花粉很难在3种类型油菜的柱头上黏附和萌发，同时在花粉黏附的部位及其附近柱头乳突细胞内产生大量胼胝质；萌发的少量花粉粒，其花粉管生长迟缓，且发生严重扭曲、肿胀等畸形现象，从而导致其进入柱头也比较困难；少数花粉管能穿过柱头进入花柱，但时常有异常胼胝质沉积在花粉管中。

The breaking parts of anthers in the four longerstamens were face to the reverse side of pistil and winding,but thedevelopments of the self-compatibility lines were regular.A greatdeal of callose was observed in stigma and pollen tuber both in theself-compatibility and self-incompatibility pollination.

对亲和性授粉和不亲和性授粉的荧光显微观察表明，无论是亲和性授粉还是不亲和性授粉，在柱头组织和花粉管组织中均可以形成大量的胼胝质，未发现胼胝质的产生和数量与自交不亲和性的识别反应有什么因果关系。

Bagged capitulum showed high seed set potential which means self-compatibility and high pollen viability during flowering.

单个花序内可自交亲和，自交结实率和花粉活力均较高，其P/O值为1 7 54.1 2±29 。8 7。

A method of assuring pollination of the Smyrna and other edible figs in which flower clusters of the caprifig are hung from trees of the edible fig,allowing wasp s to carry pollen from the flowers of the caprifig to those of the edible varieties.

无花果受精，无花果虫媒授粉法确保花束悬挂在可食用无花果果树上的士麦那无花果和其它可食用无花果授粉，以让蜜蜂将野无花果的花粉带给那些可食用无花果树种上

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。