分类学

Onagraceae in China.

柳兰广布种在中国的变异式样及其分类学。

Onagraceae in China.

标题 柳兰广布种在中国的变异式样及其分类学。

Based on the analyses of the obtained sequences and the sequences from other three representative species of Oscillatoriaceae, and two species of Microcystis , the evolutionary affiliation among the genera of Oscillatoriaceae was discussed.

并通过计算机联网从国际分子生物学数据弹库中获取颤藻科其它种的rDNA基因间隔区序列，通过比较分析，从分子水平对颤藻科Oscilatoriaceae属间的某些分类学问题进行了讨论，并根据序列中核苷酸差异值探讨了颤藻科属间界定的分子标准。

Oscillatoriaceae ; rDNA Intergenic spacer region ; Sequence analyses ; Taxonomic significance

颤藻科； rDNA间隔区；序列分析；分类学意义

It is the journal of the Palaeontological Association. The journal publishes a wide variety of papers on palaenotological topics covering: palaeozoology, palaeobotany, systematic studies, palaeoecology, micropalaeontology, palaeobiogeography, functional morphology, stratigraphy, taxonomy, taphonomy, palaeoenvironmental reconstruction, palaeoclimate analysis and biomineralization studies.

该杂志是古生物学学会的期刊，刊登古生物学广阔领域的论文，其主题涵盖：古动物学，古植物学，系统研究，古生态学，微观古生物学，古生物地理学，功能形态学，地层学，分类学，埋藏学，古生物环境重建学，古生物气候分析和生物矿化研究等。

The journal well informs the research advances in this field, ranging from marine palynomorphs to higher land plants, including systematics, evolution, palaeobiology, palaeoecology, biostratigraphy, biochronology, palaeoclimatology, paleogeography, palaeoenvironmental reconstructions, palaeobotany and palynology etc.

该杂志全面提供了从海洋孢粉型到高原植物研究领域的进展，包括分类学、进化、古生物学、古生态学、生物地层学、生物年代学、古气候学、古地理学、古环境重建、古植物学以及孢粉学等等。

Nevertheless, the fructification of Hao of green cloth with soft nap and the papaverous fruit that abstract opium very elephant, on taxology, hao of green cloth with soft nap is belonged to and opium poppy is belonged to be attributed to papaverous division plant together.

不过，绿绒蒿的果实与提炼鸦片的罂粟果很象，在分类学上，绿绒蒿属和罂粟属同归于罂粟科植物。

Methods: The ZJ8112 strain was subjected to phenotypical study, salt-aggregation test and 16S rDNA sequence analysis; the sequence analysis result was searched in the GenBank to determine its characteristics.

采用传统的分类学方法观察菌株ZJ8112的形态、耐盐度，结合16S rDNA序列分析在GenBank上进行比对以确立其进化地位。

The grey clustering ; Systematic botany ; Photinia

灰色聚类；植物分类学；石楠属

Thus, the molecular techniques are becoming more popular in the differentiation of Microcystis.16S rDNA, 16S-23S rDNA ITS and PC-IGS have been used in phylogenic classification of Microcystis, they are common molecular markers of taxonomic researches and a number of results have been carried out.

利用分子生物学技术鉴定微囊藻的种属具有快速而且可靠的优势，因此已成为了分类研究的新趋势。16S rDNA、16S-23S rDNA ITS、PC-IGS等基因序列在微囊藻的分子系统发育方面已有一些研究结果，是目前分类学研究较常用的分子标记，但各自仍存在了一定的问题。

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。