科

Molecular methods of sex identification were studied by amplifying sex gene sequences in five species of ardeidae and one species of threskiornithidae in ciconiiformes birds.

本文以鹳形目5种鹭科鸟类和1种鹮科鸟类的组织为实验材料，采用PCR方法扩增其性别基因相关片段，探讨鹭科鸟类性别的分子鉴定方法。

Plants distinguished by tubular petaloid perianth and inferior ovary: Aristolochiaceae; Rafflesiaceae; Hydnoraceae.

以管形花瓣状花被和下位子房著称的植物；马兜铃科；大花草科；一个产于非洲和阿根廷的有花植物科。

The tongue of a bell .plants distinguished by tubular petaloid perianth and inferior ovary: Aristolochiaceae; Rafflesiaceae; Hydnoraceae.

以管形花瓣状花被和下位子房著称的植物；马兜铃科；大花草科；一个产于非洲和阿根廷的有花植物科。

By searching and looking up ample information and books associated with plant taxonomy, the author summarizes species, morphological features, ecological habits and main application of ornamental plants from Asclepiadaceae, and chiefly introduces its ornamental characteristics in garden application, medical and economic value with a view to providing a reference for its development.

作者在检索和查阅大量有关植物分类的资料和书籍的基础上，综述了萝藦科观赏植物的种类、形态特征、生态习性和主要用途，并着重介绍此科植物的园林观赏特色、药用价值和经济价值，目的是为开发利用此科观赏植物提供依据。

In addition, Zhangjiajie is very rich in forest resources, forest cover in the park up to 97.7 percent of the world's five major branches of plants, such as the Asteraceae, Blanco, legumes, the rose family, here are the grass family.

此外，张家界森林资源非常丰富，园内森林覆盖率达97.7%，世界上五大名科植物，如菊科、兰科、豆科、蔷薇科、禾本科在这里都有。

The result showed that:(1) There were a higher density of Ostreidae and Balanidae and a lower biodiversity in the cay sampling section of Daxie Island.(2) No significant difference was found in the macrozoobenthos community among the tide plat sampling section in Daxie Island.(3) There was a lower macrozoobenthos species number, biodiversity, and a higher density of Sternaspis scutata and Capitella capitata than those in the sea area beside Daxie Island. Moreover, a significant difference was found in the macrozoobenthos community between the sea area of Daxie Island and the adjacent islands.

结果发现：(1)大榭岛岩相潮间带断面牡蛎科和藤壶科等科的物种栖息密度较高，生物多样性较低；(2)泥沙相潮间带底栖动物状况与其他海岛差别不显著；(3)大榭岛近岸海域底栖动物种数少于其他海岛近岸海域，且前者不倒翁虫和小头虫等多毛类物种栖息密度较高，生物多样性较低，群落结构与其他区域相差较大；(4)环境质量的生物评价结果显示，大榭岛近岸海域扰动程度高于其他海岛近岸海域。

The host range of ectomycorrhizae is primarily restricted to certain tree species, including members of the Pinaceae, Betulaceae, and Myrataceae.

外生菌根的寄主主要是几种树种包括松科、桦木科和桃金娘科。

Proteoid roots or cluster roots: dense clusters of rootlets of limited growth that develop under low phosphate or low iron conditions in Proteaceae and some plants from the following families Betulaceae , Casuarinaceae , Elaeagnaceae , Moraceae , Fabaceae and Myricaceae .

排根或集束根源：在低密集群发展的根的生长的，有限的磷酸盐或低铁的条件眼科和一些植物从以下家庭的桦木，木麻黄，胡颓子科，桑科，豆科和杨梅科。

Of or belonging to the family Bovidae, which includes hoofed, hollow-horned ruminants such as cattle, sheep, goats, and buffaloes.

牛科动物牛科的或属于牛科的，包括有蹄的、两边有角的反刍动物，如牛、绵羊、山羊和水牛

The result from phylogenetic trees created respectively by MP, NJ and UPGMA indicates that Bryaceae and Bryum are not monophyletic. The definition of some groups of Bryaceae and Bryum is doubtful in traditional classification based on morphological data. The analyses approves that Pohlia is more closely related to Mniaceae than Bryaceae, which supports placement of Pohlia in Mniaceae from Bryaceae based on DNA sequence data.

系统发育分析的结果显示：丝瓜藓属Pohlia更接近于提灯藓科Mniaceae而远离真藓科Bryaceae的类群，支持Cox等分子序列证据将丝瓜藓属Pohlia放在提灯藓科Mniaceae的安排；大叶藓属Rhodobryum与真藓属Bryum作为姊妹群存在，不支持Ochi将其作为真藓属Bryum内一个亚属的安排。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。