查询词典 pollen

Anthers 3-7 mm; pollen ca. 50% fertile. Ovary densely strigillose, with spreading and glandular hairs mixed; stigma surrounded by anthers.

花药3-7毫米；大约50%的花粉能育子房密被短糙伏毛，具平展的和腺毛混合；花药包围的柱头。

Anthers 3.5-6 mm; pollen ca. 50% fertile. Ovary strigillose, with some spreading, pustulate-based, and/or glandular hairs; stigma surrounded by anthers.

花药3.5-6毫米；大约50%的花粉能育子房具短糙伏毛，具一些开展，基疱状突起，和/或腺毛；花药包围的柱头。

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。

Effects of temperature on degradation of pollen tube RNA by the stylar S-RNase from Prunus mume were investigated, which provided an experimental basis for elucidating the mechanisms of self-incompatibility in Prunus mume.

研究不同温度对果梅花柱S-RNase降解花粉管RNA的影响，为揭示果梅自交不亲和性机制提供依据。

So far, nsLTP was proposed to promote the spreading of systemic acquired resistance signal in arabidopsis, and induce the adhesion of the pollen tube to an artificial stylar matrix in vitro, suggesting a receptor-like molecule likely exists in the cell membranes.

三级结构主要由四个α-螺旋组成，四个α-螺旋由四对二硫键相连，形成一个能结合各种脂质分子的疏水性孔穴。

Specific recognition and degradation of stylar S-RNase for self-pollen tube RNA, resulted in the stop of self-tube growth in Prunus mume. The recognition specificity of stylar S-RNase for the RNA weakened with the rise of temperature, consequently regulating the self-incompatibility reaction in Prunus mume.

果梅花柱S-RNase特异性识别并降解自花花粉管RNA，导致自花花粉管停止生长；随着温度的升高花柱S-RNase对花粉管RNA的识别特异性减弱，从而调节果梅的自交不亲和性反应。

With increasing altitude,pollen numberdecreased and length of stylar ramification increased gradually.Increased stylarramification of plants of Saussurea with increasing altitude has importantadaptive significance of evolutionary ecology.It ensured sexsual reproductivesuccess,provided a foundation of hereditary variation and increased specificdiversity.In addition,asexsual reproduction of most species of Saussurea assuredindividual quantity.

根据我们调查，生活在青藏高原东缘的多数风毛菊属植物都具有无性繁殖方式，它保证了风毛菊属植物物种的个体数量，而花柱分枝的变长保证了风毛菊属植物的有性繁殖成功，为风毛菊属植物在该地区的进化提供了遗传变异的基础，增加了风毛菊属植物的物种多样性，使得风毛菊属植物的多数物种都成为该地区的常见种，也可能是青藏高原地区是风毛菊属植物的现代分布中心的原因之一。19。

Pollen morphology of Styracaceae and its taxonomic significance.

安息香科的花粉形态研究及其在分类上的意义。

The pollen grains of Guangyi are mostly spherical, rarely spheroidal, mostly circular or subcircular in polar and equatorial view.

结果表明，'广益'扁穗牛鞭草花粉粒形状大多为球形，少数为长球形，极面观和赤道面观大多为近圆形、圆形。

The molecular markers identified here would be useful in introducing a set of new and known sterility-neutral alleles to solve the pollen sterility problem in subspecific Ft hybrids.

本研究获得的分子标记将有助于聚合尽可能多的中性亲和基因以解决亚种问F1杂种的花粉不育性问题。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。