花粉

Based on the features of morphology, anatomy, cytology, pollinating insects, embryogenesis and chemistry of representing species,the authors considered that in this family Chimonanthus may be the most advanced, Calycanthus the more primitive, and Sinocalycanthus the intermediate.

根据蜡梅科代表种的解剖学、花粉形态、传粉昆虫、胚胎发育、细胞学及化学成分的研究，作者认为蜡梅科中蜡梅属是本科最进化的属，美国蜡梅属是最原始的属，夏蜡梅则介于二属之间。

The style is elongated, ending in a small, capitate stigma, which becomes receptive at bloom.

长柱延伸，其末端有一小的头状柱头，开花时接受花粉。

The pollen grains of the male induced some of the ovaries in the caryopses of the females to inflate obviously after the pollination.

在授粉后狼尾草的花粉粒能诱导杂交母本的子房发生明显膨大。

Ion-exchange chromatography with DE-52 was used for the purification of the antigens. The purified products were characterized by Western-blotting. Result For the pollen extract of Caryota ochlandra, 30 protein bands were detected in SDS-PAGE.

收集过敏病人血清，采用免疫印迹(Western-blotting)法鉴定其变应原成分，通过离子交换层析对花粉变应原进行初步纯化和免疫印迹鉴定。

All these microsatellites can be used in the study of Castanopsis chinensis genetic diversity, mating system, and pollen flow or seed dispersal.

这些引物可用于锥栗的遗传多样性、交配系统和花粉及种子扩散水平的研究，为研究锥栗的居群遗传学和保护生物学提供了良好的基础。

These male sterile transgenic plants with TA29 Barnase gene have the same horticultural characters which can be also inherited steadily by plants in next generation as non transgenic ones. But their flowers bear fully catagenetic stamen lacking pollens, normal fragrant nectaries and strong pistils able to receive pollens from other plants or different cultivars and set seeds. At the meantime, the sterility i...

带有TA 2 9 Barnase基因的雄性不育植株的园艺学性状与未转化植株相同，并且其性状在后代中稳定不变；不育植株的花朵表现雄蕊完全退化，但蜜腺和雌蕊健全，能接受外来花粉，杂交结实率较高；同时，雄性不育植株的不育性在后代中出现分离，不育株率占 12 。5%～ 85.7%；此外，不育性状具有镶嵌性

Mature pollen grain is of 2 - celled type .

花药壁的发育为基本型，小孢子减数分裂为连续型，小孢子四分体为四面体型，成熟花粉为二细胞型。

Low genetic variation has probably resulted from the refugial nature of these populations since the last glaciation rather than from recurrent pollen dispersal between Chilanshan and Alishan populations of these 2 Chamaecyparis species. Two Hinfl restriction site differences were found in the trnV-trnM intergenic spacer between C. formosensis and C. taiwanensis. Fragment length difference as well as point mutations in the petG-trnP intergenic spacer between C. formosensis and C. taiwanensis were also found.

如此低的遗传变异可能是因为现今之红桧与台湾扁柏族群为冰河期存在之大族群的残留小族群，而未必是花粉散播所提供之基因交流极为频繁所造成。trnV-trnM基因间区间序列在红桧与台湾扁柏两者间有两个HinfI之酶切点之差异，在PetG-trnP基因间区间序列也发现台湾扁柏与红桧之间有限制酶片段长度及其他点突变。

Not only did the weeds grow much larger in hotter, CO2-enriched plots — a weed called lambs-quarters, or Chenopodium album, grew to an impressive 6 to 8 feet on the farm but to a frightening 10 to 12 feet in the city — but the urban, futuristic weeds also produced more pollen.

在较热、CO2浓度较高的试验点，不仅草长得更高大——有一种叫做藜的杂草在农场只长到6至8英尺高，而在市区里竟然长到了10至12英尺高，而且，城市里&未来派&的草还生出更多的花粉。

Then the reaction rates of IgE and IgG in asthmatic patients serum to chenopodium album pollen were counted by immunoblotting. RESULTS: Twelve bands of protein were obtained through SDS PAGE. The molecular weight of each band was 92, 63.1, 61, 52, 45, 43, 39.7, 38.9, 34, 31.6, 28.4 and 18.5~12 ku. Immunobloting identified 4 protein bands recognized by sIgE, molecular weights being 92, 34, 31.6 and 18.5~12 ku, which reacted with 70%, 50%, 80% and 90% of asthmatic patient serum.

结果： 藜草花粉经电泳后得到12条蛋白质区带，分子质量依次为92， 63.1， 61， 52， 45， 43， 39.7， 38.9， 34， 31.6， 28.4和18.5~12 ku；免疫印迹可见4条sIgE反应带，蛋白分子质量依次为92， 34， 31.6和18.5~12 ku；与患者血清反应率分别是70%， 50%， 80%和90%；与血清sIgG结合的反应带有8条，蛋白分子质量为92， 61， 52， 45， 43， 39.7， 31.6和18.5~12 ku；与患者血清反应率分别是80%， 40%， 10%， 20%， 80%， 10%， 10%和100%。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了