孢子体

These abnormal changes mainly occurred at two stages:(1) at meiotic prophase, almost half of Peiai 64S microsporocytes exhibited aberration, with sparse free ribosomes, underdeveloped mitochondria and many swollen endoplasmic reticula.

这些变化主要发生在两个阶段：（1）减数分裂前期，约半数的小孢子母细胞的胞质出现异常，游离核糖体稀少，并具有不发育线粒体和大量泡状内质网。

The temperature affects the sustained time of secondary sporogenous cell split, the sustained time of microspore mother cell, formation speed and regular of male gametophyte.

温度影响次生造孢细胞持续分裂的时间、小孢子母细胞的持续时间及雄配子体的形成速度和整齐度。

In the study, a set of near isogenic lines of CMS-S, S-Mo17Rf3Rf3 and S-Mo17rf3rf3, were adopted, and TdT-mediated dUTP nick-end labeling, in situ immunolocalization of cytochrome c and DNA ladder assay were employed to study the programmed cell death process on cytology and DNA level. The microscope observation evidenced that tapetal cells of fertile anthers kept intact until microspores, and then were disintegrated on later developmental stage.

S型细胞质雄性不育系的一对近等基因系S-Mo17Rf3Rf3 和S-Mo17rf3rf3为材料，采用TdT介导的dUTP DNA末端标记、细胞色素C免疫原位杂交和DNA寡聚核小体片段电泳等方法，分别在细胞学水平和DNA水平上研究了玉米CMS-S小孢子败育的细胞程序性死亡过程。

The results showed: four devices flower pollen sacs, anther wall conforms to the basic, from epidermis, the indoor wall, middle (2-3 layers) and tapetal composition tapetum to glandular type.

对悬铃木小孢子发生及雄配子体发育过程进行了观察，结果表明：花药具4个花粉囊，花药壁发育为基本型，由表皮、药室内壁、中层（2-3层）和绒毡层组成，绒毡层为腺质型。

Based on 28S large subunit ribosomal RNA gene D1D2 fragment sequence analysis, and the difference in the morphology and structure of zoosporangia, most species

本研究以28S核醣体DNA序列D1D2片段分析，并搭配其游动胞囊形态与游动孢子之释放机制研究其类缘关系。

Giemsa staining was used to observe the growth of C.andersoni,and transmission electron microscope was used to observe the developmental stages of C.andersoni.MTT assay was used to evaluate the toxicity of nitazoxanid and ginkgoic acids to HCT-8 cells.C.andersoni parasites growing in HCT-8 cells were treated with different concentrations of NTZ and GAs,and the copies of COWP gene were determined by Real-time PCR.

安氏隐孢子虫卵囊感染人结肠癌(HCT-8)细胞，Real-time PCR技术测定RPMI-1640培养液中分别加入不同浓度胎牛血清(fetal calf serum，FCS)、葡萄糖(glucose，GLU)、维生素C(ascorbic acid，ASC)、叶酸(folic acid，FOLIC)、泛酸钙(calcium pantothenate，CAPAN)和胰岛素(insulin，INSULIN)后虫体的增殖效果。

Further examination by scanning electron microscopy indicates that the mutant microspore exine is aberrant and broken.

扫描电镜结果显示，突变体花药中小孢子外壁异常、破裂。

This study served as a basic research for resistance breeding,a study of factors which infleunced the growth of myceliuni of Phytophthora sojae and its zoospores production was carried out basedon R25 of? sojae.

本文围绕抗病育种这一中心，以大豆疫霉根腐病病原菌25号生理小种，对影响其菌丝体生长和游动孢子产生的因子进行了研究。

Through the selection of culture medium and the mutant of mycelium that has a high production of PUPAS oil , the oil containing mycelium can be obtained with fermentation, and the dry mycelium contains 42.75挆47.78% oil.

本课题通过研究，选出了深黄被孢霉Mortierellaisabellina株作为摇瓶小试菌株，该株生长快，菌丝多，利用培养基原料能力强，易于形成孢子，生物量49g干菌体/L发酵液，含PUFAs46.61％，其中GLA2.3％。

After these research, the results as followed(1) Oospores maintained a certain viability after a winter in the media.

研究结果表明，(1)在离体培养基上产生的卵孢子越冬后，保持了一定的存活能力，其存活率为19.7％～26.0％。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。