细胞学的

This suggests that the cytological changes in sieve element and nectariferous tissue are closely associated with the nectary functional activities.

这反映了蜜腺发育过程中筛分子和蜜腺组织的细胞学变化是与蜜腺的生长、发育和生理功能的完善联系在一起的。

Upon these plants, some germplasm resources were collected at home and abroard, and their morphology, palynology, cytology, growth and development habit, fruit economy characteristics were studied. The extraction methods for DNA of Lonicera Caerulea L. and reaction system of RAPD were also discussed in the project. And it was the first time to study the genetic diversity, relationship and classification of Lonicera Caerulea L on wild resource in Northeast of China and subsection using RAPD.

针对这些问题，我们收集了国内外的种质资源，从形态学、孢粉学、细胞学、生长发育习性和果实经济生物学性状等方面对东北地区野生蓝靛果忍冬的生物学特性进行了系统研究；对蓝靛果忍冬DNA的提取方法和RAPD的反应体系进行了详细探讨，并首次运用RAPD技术分别对东北地区野生资源和蓝果亚组种间的遗传多样性和亲缘关系、分类等问题进行了研究和分析。

Puna Chicory, leymus multicaulis and Psathyrostachysjuncea.For the materials used in this article were some old seeds which had been stored for 3-7 years, we found a lot of abnormal mitotic and meiotic cells, such as chromosome bridge. chromosome laggard, micronucleus, multipolar division and so on. Moreover, we also found the wheat"s multi-anther, double germinate-hole"s microspore and collected the photos of every period of meiosis. mitosis.

因为用于细胞学检测的小麦材料是搁置多年的陈旧种子，所以在检测染色体数目时，发现大量异常分裂现象，包括染色体桥、染色体落后、微核、多极分裂等；实验过程中还发现小麦多花药现象和花粉粒具双萌发孔的现象；同时在显微观察同时还注意搜集了细胞有丝分裂、减数分裂各个时期的分裂相图片。

On the D110, when mean total length reached about 86.5±5.9 mm, ovarian cavity grew bigger, and oocytes were firstly detected. Differentiation of testis was firstly observed in juvenile flounder with mean total length of 63.5±3.4 mm on the D90 when spermatogenous cell proliferated rapidly and spermaduct formed.

在90日龄、平均全长为63.5±3.4 mm的雄性牙鲆中，精原细胞快速增殖，并观察到了输精管结构；进一步的细胞学分化则出现在100日龄、平均全长为76.0±8.6 mm的个体中，此时可以看到精小叶的形成；在平均全长为140.0±15.2 mm时，精巢中出现初级精母细胞，标志着性腺分化的基本完成。

Cytology reveals cells with clear to lightly basophilic cytoplasm and round or indented nuclei with fine chromatin and indistinct nucleoli.

细胞学分析可见透明至浅染的酸性细胞质和圆形或缩进的细胞核含有正常的染色质和模糊的核仁。

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。

Approximately 30% of 61 cytologically abnormal samples was infected with three different HPV types, and over 13.8% of the samples has at least 4 different HPV types.

在细胞学异常的样本中，三种HPV 混合感染的比例达到样本总数的30%，五种及以上HPV 混合感染的比例高达13.8%。

As there were 8.69 bivalents in average occurred to be desynaptic, moreover, the most number of the desynaptic bivalents reached 12 at post diakinsis.

从品种轮回422的群体中发现一不育单株，经细胞学观察证明是发生了联会消失突变，由于该植株的花粉母细胞在减数分裂终变期晚期平均有8.69个二价体发生了联会消失，占二价体总数的72.4%，并且发生联会消失的最多二价体数目为12，根据联会消失的最多二价体数目

The exfoliative cytology of prostatic fluid is valuable in diagnosing the prostate cancer, especially in patients with a high PSA value. It is noninvasive and has cess damage than prostate biopsy.

前列腺脱落细胞学检查诊断前列腺癌是一种有效的方法，尤其是在患者具有较高的PSA值的时候，具有无侵入性，较前列腺活检的损伤更小。

These offered new basic informations and new views for classification and phylogenesis of hypotrichous ciliates and continually exploring the determinant factor of the formation of the cuticle ciliary pattern of ciliates.

这些为进一步探索纤毛虫皮层纤毛模式的形成和决定，为下毛类纤毛虫的分类和系统演化及细胞学等的研究提供新的基础资料和见解。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。