查询词典 pollen

A effective way of using pollen to look for mineral through biogeochemics was expounded. A new idea that producing special pollen of nectariferous plants through different geological backgrounds was presented.

并阐明了利用花粉进行生物地球化学找矿是一种有效手段，同时提出了可以利用不同地质背景生产特种蜜源植物花粉的新思路。

The association between mineral composition in the pollen of nectariferous plants and the geological background of soil in three mine regions and three orchards was assayed systematically. The results showed that the geological condition of the soil could affect the mineral contents of pollen.

以三矿区和三果园为例，系统地分析了蜜源植物花粉中矿物质成分与土壤地质背景的关系，结果表明：土壤地质背景条件直接影响花粉中矿物质含量。

A comprehensive survey of minerals in pollen of nectariferous plants was performed in this study.The contents of 14 mineral elements such as Fe, Zn, Cu, Mn and Se etc. in the pollen of 14 kinds of nectariferous plants: Cucumis melo L., Nelumbo nucifera Gaertn, Citrus sinensis Osbesk, Prunus armeniaca L., Rosa xanthina Lindi., etc, were detected for the first time by atomic absorption spectrophotometry, ultraviolet spectrophotometry and fluorescence spectrophotometry.

利用原子吸收分光光度计、紫外分光光度计和荧光分光光度计，测定了前人尚未测试的哈密瓜、莲、脐橙、杏及黄刺梅等14种蜜源植物花粉中Fe、Zn、Cu、Mn及Se等14种矿物质元素的含量。

The appearance of DNA ladder from the ovules in which pollen chamber formation was undergoing, together with TUNEL assay and ultrastructural changes, demonstrated that the nucellar cell death, doomed to bring about pollen chamber, was a process of programmed cell death .

在贮粉室的形态发生过程中，相关珠心细胞的DNA电泳出现DNA ladder、其细胞核被TUNEL反应所标记以及它们的超微结构变化都说明，参与贮粉室形成的珠心细胞的死亡是一种细胞程序性死亡（programmed cell death，PCD）。

"Death of a pollen tube: papaver uses programmed cell death to inhibit incompatible pollen tubes".

英国伯明翰大学Noni Franklin-Tong 教授访问我所，并作了题为花粉管的死亡：罂粟以程序性

Plasmid DNA of pBILGC containing Chitinase and β-1, 3 - glucanase gene and fresh pollen of Papaver nudicaule were mixed in 11％ sucrose solution, then the pollen suspension were pollinated on stigmas of the Papaver nudicaule by artificial pollination.

以野罂粟开放花蕾为受体，以载有几丁质酶和β-1，3-葡聚糖酶基因双价植物表达载体pBLGC的质粒为供体，在11％浓度的蔗糖溶液中，加入花粉和含有目的基因的质粒DNA。得到药粉处理液。

Leaves spirally arranged, radially spreading, or pectinately arranged in lateral sets, linear, straight or curved, flattened, grooved adaxially, stomatal bands 2, abaxial, vascular bundle 1, resin canals 2(-10 outside China), marginal or median, rarely submedian, base twisted. Pollen cones borne in leaf axils of previous year's branchlets, pendulous, narrowly ellipsoid or oblong when young, finally cylindric; pollen 2-saccate.

叶螺旋状排列，光线传播，或pectinately排列在方面侧确定，线形，直或弯曲，扁平，正面具槽，气孔带2，背面，维管束1，雄球花生于第二年小枝的叶腋，下垂，或长圆形的狭椭圆形幼时，最后圆筒状；花粉2囊。

It is also suggested that the correlations between pollen-ovule ratio and pollen size , and ovule size should be accounted for in terms of sex allocation theory. During this project, no other effective pollinators except bumblebees and no species-specific pollinator have been observed for all kinds of Pedicularis species.

花粉胚珠比与配子体投资的相关性是植物自身为获得生殖成功，对资源在两性性功能的配置重新调整的结果，性配置理论可以很好的解释这些关系。

The different types of pollen abortion were observed among 3 Phyllostachys species by the examination of pollen viability.

花粉活力的测定说明存在不同类型的花粉败育现象。

The total content of Poaceae pollen in the rice field is 36％～88％,and the content of Oryza- type pollen is 30％～84％,averaging 57.41％.

研究结果表明，该区稻田耕土表层的禾本科花粉含量为36％～88％，其中水稻型花粉含量为30％～84％，平均含量为57.41％。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！