查询词典 one species

By separation and combination analyses of nuclear rDNA ITS and the cpDNA (matK gene, rpl16 intron and atpB-rbcL spacer) sequences, the interspecific relationships were discussed, and the classification review and biogeographic analysis were done for all species bearing raceme or spike of one to many umbels with prophylla at base.

运用nrDNA ITS及cpDNA(matK、rpl16、atpB-rbcL)序列的单独和联合分析探讨了这些类群的种间关系，并对世界菝葜属中具有一至多个伞形花序排列成圆锥花序或穗状花序、花序梗上有关节的所有种进行了分类学研究及生物地理学研究。

On an average, 1.1±0.3 and 0.4±0.1 rotifers were hatched from per milliliter sediments of the big and the small basins, respectively. The rotifer species, which was hatched at one incubation pattern from the resting eggs in sediments of both the two basins of the lake and whose density was higher than 20ind/200mL, included Proalides tentaculates , Anuraeopsis fissa , Keratella cochlearis , Brachionus diversicornis , Filinia brachiata and B .

mL的轮虫种类总计有6种，它们是多须伪前翼轮虫、裂痕龟纹轮虫、螺形龟甲轮虫、裂足臂尾轮虫、臂三肢轮虫和萼花臂尾轮虫；其中前三种轮虫为两湖区所共有。

It is mainly distributed in Hebei, Liaoning and Inner Mongolia, as one of the dominant species of breakwind.

主要分布于河北、辽宁及内蒙古等地，作为防风固沙的优势树种。

With fewer than 3,000 seeds left in the world, the brome is one of the most threatened species on the planet.

阿普林说：我很清楚，我看到的可能是现存这一物种最后的一些种子了。

One of four subclasses or superorders of Monocotyledones; comprises about 19,000 species in 25 families of mostly terrestrial herbs especially of moist places including: Cyperaceae; Gramineae; Bromeliaceae; and Zingiberaceae.

单子叶植物纲的四个亚纲或总目之一；包含25个属中19，000个种类的大部分尤其是生长于潮湿地方的陆生草类；莎草科；禾本科。

The tryptophan residues play important roles in DNA photoreactivation catalyzed by CPD photolyases. We have investigated the action mechanism concerning Trp in DNA photoreactivation, and obtained the results as follows: 1 We proposed a mechanism of photosensitized splitting of CPDs by Trp and Trp-containing peptides. 2 Quantum yields of splitting of the model compounds that a Trp linked covalently a CPD were obtained under 290 nm light in various solvents, these values changing with solvent, range from 0.01 to 0.5. 3 Utilizing pulse radiolysis technique, splitting processes were observed in aqueous solution of the CPDs with hydrated electron and some oxidative species (such as hydroxyl radical, bromic radical and azide radical), and obtained their rate constants. In the case of interaction between CPD and hydrated electron, splitting of the CPD anion, and pyrimidine anion transfer an electron to FAD or Rf, were observed. The process rate was slower one order more than that in photolyase. Minor, but highly mutagenic UV-light-induced lesions are (6-4) photoproducts, which are repaired by (6-4) photolyases. These enzymes, discovered in 1993, are not well characterized and their mechanism is still under investigation.

我们研究它的作用机理，获得以下结果：1）建立了色氨酸及其肽对嘧啶二聚体光敏化裂解的直接修复作用机理模型；2）获得了色氨酸共价键连接于嘧啶二聚体的化合物在多种溶剂中290nm光辐照裂解的量子效率，其值随溶剂而变化，范围在0.01-0.5；3）运用脉冲辐解观察到嘧啶二聚体与水合电子和一些氧化性的自由基作用裂解过程，得到相应速率常数；对二聚体与水合电子作用发生裂解以及向FAD返还电子的过程进行了体外模拟；4）（6-4）光解酶的作用机理中一个关键假定是氧杂环丁烷中间体在接受电子后能自发裂解，恢复二嘧啶的结构。

It was put forward that there were two species of Cu〓 on the surface of brucite. One was adsorbed on the surface of brucite forming a model of S —O—Cu—OH; another was the bulk precipitate of 〓.

提出Cu〓在水镁石表面有两种存在形态，一种以Cu〓的形式吸附在水镁石表面，形成S—O—Cu—OH的结构；另一种为〓体相沉淀。

Aschersonia turbinata is different from other species in Aschersonia by its yellowish-white subcylindric stromata when fresh, irregular pycnidia produced in one or more flat or concave disks on a more or less bulbose base and fusoid conidia with conical tips.

锥形座壳孢有别于该属其他成员的特征是新鲜时具有微黄白色近圆柱形的子座，不规则的孢子器产生于1个或更多个平或凹盘里，梭状的器孢子具有锥形尖端。

One of the most well known ficus species is the Ficus carica, a plant known as the Common Ficus.

其中最广为人知的是榕树无花果、植物称为共同榕。

Ceratium species are covered by a theca, or armour, composed of many texture d plates that form one horn in the front and usually two in the back;

壳由许多具花纹的板片组成，这些纹板组成一个前角和通常两个后角

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。