The type of vegetation in a specific region is determined by identifying and counting the various pollen grains found there.
一个特定地区的植被类型是通过识别和计算那里发现的各种花粉粒来确定的。
花粉粒:为何这么多？
成熟花粉3 -细胞型。
成熟花粉为3-细胞型。
Both the pollen grains and the gynoecia are active.
花粉粒和雌蕊都具有活力。
Two-celled type mature pollen grains were reported.
成熟花粉为二胞型花粉。
Spot on: The pink-flecked green pollen grains of a Venus Flytrap
恰到好处：捕蝇草的绿色花粉颗粒上点缀着粉色斑点。
Mature pollen grains were mostly two-celled, rarely three-celled.
成熟花粉粒大多是二细胞型，很少产生三细胞型。
Tapetal cells degenerate completely when pollen grains reach maturity.
当花粉成熟时，绒毡层细胞完全解体。
Pollen grains are rich in mitochondria, Golgi apparatus, and endoplasmic reticulum.
花粉粒富含线粒体、高尔基体以及内质网上。
Pollen grains of 103 peach cultivars were examined using the Scanning Electron Microscopy.
作者用扫描电子显微镜观察了103个桃品种和3个桃近缘野生种的花粉粒。
Finally, 92.6%-94.8% of microspores could develop into normal and stainable pollen grains.
最终有92.6%—94.8%的小孢子能发育成形态正常、染色能力强的成熟花粉粒。
Pollen grains and spores are important index to reconstruct paleoclimate and paleoenvironment.
孢粉是恢复古植被、古气候的重要代用指标。
Abortive shapes of pollen grains were in varied forms, such as irregular, round and spindle etc.
花粉粒败育形态多种多样，有不规则形，梭形，圆形等。
Numbers of pollen grains and spores deposited on flowers were strongly and positively correlated.
研究发现，着落在花上的花粉粒数和菌孢子数呈强正相关。
Their sterility showed no pollen grains, anther could not been shed, anther couldn't shed pollen.
不育性表现方式有：无花粉粒、花药吐不出、花药不散粉。
The results showed that the anther of Niitaka and Atago had only a little male sterile pollen grains .
结果表明，‘新高’、‘爱宕’花器官形态正常，花药较小不饱满；
Sterile plant has few pollen grains, but its sterility can be restored stably and completely to fertility.
不育株花粉虽然微量，但能被稳定、彻底恢复可育。
The pollen grains are small to medium in size and spheroidal or subprolate in shape, with a few being prolate.
一般中等大小，绝大多数为圆球形，少数为近长球形或长球形。
At first Brown attributed the motion to a mobility possessed by the pollen grains by virtue of their animate nature.
起初，布朗把这种运动归结为由花粉生物性质所决定的迁移过程。
The microspores are arranged in a tetrahedral tetrad. The mature pollen grains are of the 2-celled and 3-celled types.
小孢子四分体为四面体型排列，成熟花粉有2 -细胞和3 -细胞型2种。
Anther culture (pollen culture) the generation of haploid plants from immature pollen grains or intact excised anthers.
从未成熟的花粉粒或者切下的完整的花药中再生出单倍体植株的过程。
Surface structure of the pollen grains was found to be one of the major factors affecting the feeding behavior of the predator.
花粉粒的外部形态结构，是影响该螨能否取食的重要因素之一。
For the large Numbers of pollen grains produced by wind-pollinated plants as compared to insect-pollinated plants, see Cruden, R. W. 2000.
有关风媒传粉的植物花粉粒数量大于虫媒传粉植物的数据，见Cruden,r . W . 2000。
H ay fever sufferers can now see the face of their invisible enemy - thanks to these Scanning Electron Microscope images of pollen grains.
由于有了电子扫描显微镜下的花粉颗粒图像，花粉症患者现在能够看到他们无形的敌人的真正面目。
The results showed that there were obvious differences among the pollen grains in terms of pollen size, shape, colour and surface structures.
结果表明：所研究的植物花粉粒在大小、形态、萌发器官和外壁纹饰上有明显差异；
Conclusion: Dipsacus is a natural class group, and the slight difference of its pollen grains is useful to some extent in the division of species.
结论：续断属为一自然分类群，花粉粒的细微差异对种的划分有一定意义。
The technique of IEF of single pollen grains and micro operation provides a new and quick screening test applied to plant genetic breeding and devel…
单花粉蛋白等电聚焦结合显微操作技术对于遗传育种和发育生物学研究具有重要的应用前景。
The investigation of airborne pollen grains belongs to the applied aeropalynology, which is getting more and more attention in clinical medical subject.
空气中花粉粒的调查研究属气传孢粉应用学科，它正愈来愈受到临床医学界的重视。
The mean number of pollen grains per stigma is 8—12 Most of the pollen grains are from self pollination. The pollen vigour is strong in the pollinating period.
柱头上的平均花粉量为8— 2 1个，但多数为来自自花的花粉，散粉期花粉活力较高。
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