原生植物

The percentages of dioecy varied among the six selected vegetation types in Taiwan, from 14.1% in the Linkou Laterite Terrace secondary forest to 23.9% in the Nanjenshan plot, the highest percentage ever found in a forest plot.

另外本研究在检视了六个森林样区中之所有原生被子植物资料，发现其中雌雄异株植物的比例有相当的变异，从林口红土台地次生林的14.1%，到南仁山热带森林的23.9%不等，后者甚至为目前所有发表样区资料中雌雄异株比例最高的地区。

METHODSequence analysis of Pyruvate orthophosphate dikinase from Echinochloa crusgalli var frumentaceaRoxb.

丙酮酸磷酸双激酶是一种在细菌、原生生物和高等植物中广泛存在的酶[1￣4]。

Among the economic crops, pachyrhizus leaf had the most remarkable treating effect, the COD treating capacity per day per unit area was 4.01g, that is, a 50% treating rate; the BOD treating capacity was 1.15 g, that is, a 35% treating rate; the TP treating capacity was 0.23 g, that is, a 16% treating rate; the TN treating capacity was 1.87 g, that is, a 74% treating rate; however, the treating effect decreased as the total amount of pollution entering this system increased by raising the water volume, which was mainly owing to the relatively short hydraulic retention time.

由水质试验结果显示，本系统所选用的作物处理生活污水成效极佳，优於一般湿地选用的植物，以及河滩地原生草种型态，其中以地瓜叶的处理成效最为显著，每日单位面积COD去除速率为4.01 g 、处理效率达50﹪；BOD去除速率为1.15 g 、处理效率达35﹪；TP去除速率为0.23 g 、处理效率达16﹪；TN去除速率为1.87 g 、处理效率74﹪，而以加大水量的方式，增加进入本系统之污染总量，其处理成效减低，主要原因受到水力停留时间较短影响，未来可以增加处理面积、水力停留时间加长、提高原水浓度为后续之研究方向，以达到增加本系统处理成效之目的。

Microscopic parasites include single-celled protozoans such as amoebas and sporozoa, fungi, and bacteria, which can infect animals and plants.

显微镜下可见的有单细胞原生类寄生虫，例如阿米巴和孢子虫，真菌及细菌，这些均能感染动物及植物。

The results show that the construction of the railway has an obvious effect on the warm steppe,but the characteristics of community,such as the coverage,ecological dominance and species richness of communities have been improved after its natural restoration,and some species,such as Elymus nutans,Aconitum gymnandrum and Thermopsis lanceolata,play an important role in the restoration communities.An assistant measure taken by human beings will benefit to the restoration.There is no any evidence of exotic invading plants in the restoration of the warm steppe in the study area.

结果显示，青藏铁路修筑过程对铁路两侧一定区域的温性草原有较大影响，但随着受影响区域植被的自然恢复，群落盖度、生态优势度和物种多样性等反应群落特征的指标都有一定程度的改善，一些在原生植被中很少出现或伴生种在恢复后的群落中有可能成为群落的优势种或建群种，如露蕊乌头和鹅绒委陵菜等；人为辅助措施将有利于受损植被的恢复；修筑铁路过程中受到影响的温性草原其恢复过程中尚未出现外来入侵植物。

The objectives of the study were to: 1 reveal the responses of vegetation and soil to degradation by investigating community characteristics and soil physic-chemical properties; 2 quantify the contributions of human factors and natural factors and the relationship among the factors by analyzing the variation of each factor in past decades; 3 understand the succession of fenced undegraded meadow, artificial pasture, semi-artificial pasture and degraded meadow, and to 4 provide suggestions for restoration and rehabilitation of the degraded rangeland in the region.

本项研究旨在通过对黄河源区退化高寒草甸的植物群落特征和土壤特征调查，揭示植物和土壤养分对土地退化的响应；对源区人口及牲畜数量和国内生产总值，气候变化特点等因子的分析，量化人为干扰因子和自然因子的贡献率以及各因子之间的数量关系；以及对草地退化驱动力分析以及原生草地植被封育、人工草地、半人工草地的自然演替变化规律的研究，为高寒草甸退化草地恢复与重建提供科学依据。

The department has a long tradition of research on algae and other protists. Today our emphasis is on the ecology and taxonomy of macroalgae, phytoplankton, heterotrophic flagellates and on benthic microalgae.

该专业对藻类和其他原生生物上研究上有着悠久传统，其研究重点在微藻、浮游植物、异养鞭毛藻、底栖微藻的生态学和分类学等。

According to the situation of plants scarce on soil refuse dump of coal mine,and extremely slow native settlement process of vegetation and ecosystems,soil and the coal-fly-ash have been analysed for the physical and chemical nature.

针对煤矿排土场上植物稀少、植被的自然定居和生态系统的原生演替过程极其缓慢的现状，采用实验分析的方法，初步探索了排土场土壤和粉煤灰的理化性质。

Protoctists are typically microscopic single-celled organisms, such as the amebas, but the group also has large multicellar members, for example the seaweeds and other large algae, some of which are sometimes classified as plants.

原生生物是典型的单细胞生物，显微镜下才可见，如阿米巴。但也有多细胞的成员，如海藻以及其他一些大型藻类。它们中的一些有时被划分成植物。

Our company is a home appliance sales and after-sales service, seeds, flowers, nursery stock, plant native medicinal herbs for the integrated enterprise.

本公司是一家集家电销售和售后服务，种子，花卉，苗木，植物原生药材为一体的综合性企业。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。