查询词典 taxonomic

Ninety seven spores or sporocarps of VAMF were wet sieved from the rhizosphere soil of mycorrhized pteridophytes, from which 25 VAMF species which belonged to the genera of Acaulospora, Gigaspora, Glomus, Sclerocystis and Scutellospora respectively were identified, and the taxonomic characters of the 25 species were described. The Glomus fungi were the dominant VAMF in the rhizosphere soil of pteridophytes, they took up 44% in the identified 25 VAMF (11 species belong to Glomus); the fungi in Acaulospora and Sclerocystis in the next place, they took up 24% and 16% respectively in the identified VAMF; the fungi in the other genera took up 16%. In terms of the relationships of pteridophytes and the VAMF isolated from their rhizosphere soil, there was no specifity between the VAMF and their host.

从具有VA菌根的蕨类植物对应的根际土壤中用湿筛法筛取了97份VA菌根真菌的孢子或孢子果，从中鉴定出了分属于无醒囊霉属、巨孢囊霉属、球囊霉属、硬囊霉属和盾孢囊霉属的VA菌根真菌25种，并对这25种真菌的分类学特征进行了描述；球囊霉属真菌是蕨类植物根际土壤中的优势类群，已鉴定的25种真菌中，有11种属球囊霉属真菌，占44%，其次是无梗囊霉属和硬囊霉属真菌，分别占24%和16%，其他属的VA菌根真菌占16%，从分离鉴定的蕨类植物根际土壤中的VA菌根真菌与蕨类植物的关系看，VA菌根真菌与蕨类植物之间无明显的专一性。

On the basis of phylogenetic analyses, three isolates, strain 117,43401 and 12202 were subject to a polyphasic taxonomic study.

实验结果显示，酸性土壤中的嗜酸稀有放线菌具有较丰富的种属多样性，其中诺卡氏菌属是一优势菌群。

This thesis reviewed the historical development, the current taxonomic status and the phylogeny of rhizobia, and compared the main methods applied in rhizobial polyphasic taxonomy.

本论文综述了根瘤菌的分类现状、系统发育地位及有关的研究方法；采用数值分类、16S rDNA PCR-RFLP、BOX-PCR、AFLP、16S rDNA 序列分析、G+Cmol%测定、DNA-DNA同源性分析等多相分类技术对分离自我国不同地区的木本豆科植物刺槐、黄檀、合欢根瘤菌进行了系统地分类学上的研究。

In this study, the chromosome karyotype analysis and RT-PCR method are employed to explore the taxonomic characteristic of the planarians.

通过核型分析和RTPCR技术，从核学和分子生物学水平对三角涡虫的分类学特征进行研究。

Traditionally, the taxonomic basis of planarians is based on the anatimic characteristic of their reproductive system.

日本三角涡虫是国际上研究涡虫再生和发育的模式动物，三角涡虫传统的分类学基础是以其生殖解剖学特征为依据。

Firstly, according to the taxonomic approach of two-sided markets, the social network sites, which is a complicated network platform with multi-sided markets , have both media platform and software platform characters.

首先，本文根据双边市场的分类方法，通过对社交网站媒体特征和插件平台特征的分析，发现社交网站兼具媒体平台和软件平台的双边市场特征，是一种具有多重双边市场的综合性网络平台。

Biology taxonomic group between a genus and a species.

介于属和种之间的分类学类目。

Pairing of homologous parts of chromosomes provides clues to their taxonomic affinities.

染色体同源部分的配对为它们之间分类的关系提供证据。

The taxonomic history of the Damaeidae Family in the world was reviewed for the first time. Some well-known taxonomists on Damaeidae and their achievements were introduced.

全面回顾了世界珠甲螨科约210年的研究历史，介绍了分类研究的代表人物及其所取得的成就。

Taxonomic impediments are at the forefront of the reef biodiversity crisis, and problems associated with finding and training a new and competent crop of younger marine taxonomists are serious.

珊瑚礁生物多样性危机的最先前工作的是分类上障碍，而且问题相当严重是缺乏训练新的和能胜任的年轻海洋分类专家。

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。