花粉

Plant macrofossil data provide a valuable complement to pollen and faunal data that can be used to reconstruct the terrestrial environment.

该库数据为花粉和动物区系数据提供了有价值的补充，将能用于改造地球的陆地环境。

On the plant that blossoms in, very much small fly sits on leaf, now and then back and forth formicate, do not visit the column head that covers pollen however.

在一朵开花的植株上，很多小蝇坐在花瓣上，偶然往返爬动，却不去访问布满花粉的柱头。

Foveolate sculpture is observed on exine surface in all the five species except Manglietiamoto and M. pachyphylla which have slightly coarse exine.

扫描电镜下观察，花粉外壁均为小穴状雕纹，但毛桃木莲和厚叶木莲(M.pachyphylla)略为粗糙。

Generative nuclei The two gametic nuclei formed by the division of the generative cell in the pollen tube of angiosperms.

雄原核：在被子植物花粉管中的生殖细胞分裂成两个配子的核。

On the basis of results of our test,we suggest that low temperature pretreatment changes content of endogenous IAA and iPA of anther,thus interrupts previous developmental direction of pollen and induces microspores develop from a gametophytic way to a sporophytic way.

根据实验结果，推测低温预处理改变了花药内源IAA和iPA含量，阻断了花粉原来的发育方向，使其由配子体的发育途径转向孢子体的发育途径。

Based on these observations, we predict that the transmission of GA-signaling genes occurs in a sporophytic manner, since the protein products and/or mRNA transcripts of these genes may be introduced into pollen-carrying mutant alleles, whereas GA synthesis genes are transmitted in a gametophytic manner, since these genes are preferentially expressed after meiosis.

基于这些观察，我们预测该遗传算法，基因信号传输时，在孢子的方式，因为蛋白质的产品和/或基因这些基因的转录可以引入花粉携带突变基因，而合成的基因遗传传递以配子体的态度，因为这些基因是优先减数分裂后表示。

Recent data have provided clear insights into some aspects of self-recognition and rejection in the SI response of three types,the single-locus sporophytic and two distinct forms of single-locus gametophytic SI.

高等植物在长期的进化过程中，通过雌蕊识别并拒绝遗传上相近的花粉，防止近亲繁殖、保持遗传多样性，该机制被称为植物自交不亲和性。

2N gametes are the result of meiotic mutation during micro- and mega-sporogenesis that bear the sporophytic rather than the gametophytic chromosome number. This paper reviewed the genetic markers including the morphologic, cytological, isozymes and DNA markers, which have been employed in the generation, inheritance, heterozygosity and marker-assisted breeding of 2n gametes based on the frequency of large pollen grains, cytological analyses, unexpected occurrence of polyploidy progeny and the associations between parents and progenies.

文章综述了植物2n配子发生及其遗传标记研究现状，论述涉及有关形态学标记、细胞学标记、同工酶标记乃至DNA标记等遗传标记在2n配子研究中的应用，指出通过花粉形态观察、大小孢子母细胞减数分裂行为观察、杂种后代倍性鉴定以及亲子分子标记相关分析等，对2n配子发生、2n配子遗传类型与杂合性以及2n配子在育种实践中的有效性等进行研究。

Methods The 120 menopause syndrome patients have divided into two groups randomly,these patints who accorded with the diagnosing standard of the traditional Chinese medicine,the cured group giving the self-desingedWuzangyangyin soup,the contrasted group giving "Genian an",course of treatment is 1 months.

将符合中医诊断标准的120例更年期综合征患者随机分为两组，治疗组给予自拟五脏养阴汤（由黄精、麦冬、白芍、生地、玉竹、五味子、花粉、丹皮等药物组成），对照组给予更年安治疗，疗程1个月。

Methods The 120 menopause syndrome patients have divided into two groups randomly,these patints who accorded with the diagnosing standard of the traditional Chinese medicine,the cured group giving the self-desingedWuzangyangyin soup,the contrasted group giving "Genian an",course of treatment is 1 months.

将符合中医诊断标准的120例更年期综合征患者随机分为两组，治疗组给予自拟五脏养阴汤（由黄精、麦冬、白芍、生地、玉竹、五味子、花粉、丹皮等药物组成），对照组给予更年安治疗，疗程1个月。观目的观察五脏养阴汤治疗更年期综合征的临床疗效。

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