蜡梅

Calycanthus, Sinocalycanthus and Chimonanthus are the corresponding genera which disjointedly distribut in the North America and the East Asia.

美国蜡梅属 Calycanthus、夏蜡梅属 Sinocalycanthus 和蜡梅属Chimonanthus是北美和东亚间断分布相对应的3个属。

The results showed that the diurnal changes of photosynthesis of S. chinensis in tile overstory took on "double-peak" curve with remarkable midday depression. The midday depression was mainly due to non-stomata1 limitations. On the contrary, the diurnal changes of photosynthesis of S. chinensis in the understory took on "one-peak" curve with low Pn. The maximal Pn was only half of that of S. chinensis in the overstory. The correlation analysis showed that the limiting factor for this low Pn might be light intensity (p=0.001). Compared with its accompanying plants, S. chinensis was in a disadvantaged status in the community with low photosynthetic capacity, water use efficiency, and the ratio of photosynthetic rate to respiration rate.

结果表明：夏蜡梅冠层的光合速率日进程呈"双峰"曲线，有明显的"午休"现象，经分析其"午休"的原因主要是由非气孔因素引起的；林下夏蜡梅则表现为"单峰"曲线，净光合速率较低，最大净光合速率不及冠层的1/2，相关分析结果表明其最重要的影响因子是光合有效辐射(p=0.001)；与其它伴生植物相比，夏蜡梅的日均光合速率、最大光合速率、水分利用效率和光合速率／呼吸速率都明显偏低，在群落竞争中处于不利地位。

The present study includes reconstruction the phylogeny of Calycanthaceae, discussion the systematic position at family level, and relationships among genera.

在对蜡梅科开展大量分子系统学研究的同时，还对蜡梅科的形态性状进行了分支分析，讨论了蜡梅科的起源和演化问题。

The pollen morphology of six species in the family Calycanthaceae were observed under light and scanning electron microscope.

在光学显微镜下和扫描电子显微镜下对蜡梅科Calycanthaceae7种花粉形态进行观察，结果表明本科花粉至少有下列3种不同类型：(1)花粉具穴状纹饰，亦道面观呈长方形，中央部位不扩大，如美国蜡梅，或中央部位扩大，如夏蜡梅和西南蜡梅

The phylogenetic relationships of Calycanthaceae were investigated by means of molecular systematics, which was based on three DNA sequences from three genomes, including chloroplast DNA trnL-F, nuclear 18S ribosomal DNA, and mitochondrial matR gene.

本文选取来自于三个基因组—核基因组、线粒体基因组和叶绿体基因组的3个DNA序列片段，对蜡梅科的系统发育进行重建，主要探讨了蜡梅科的系统位置和属间系统演化关系。

Based on the features of morphology, anatomy, cytology, pollinating insects, embryogenesis and chemistry of representing species,the authors considered that in this family Chimonanthus may be the most advanced, Calycanthus the more primitive, and Sinocalycanthus the intermediate.

根据蜡梅科代表种的解剖学、花粉形态、传粉昆虫、胚胎发育、细胞学及化学成分的研究，作者认为蜡梅科中蜡梅属是本科最进化的属，美国蜡梅属是最原始的属，夏蜡梅则介于二属之间。

Based on the survey and preexisting data, this paper deals with with the distributions, the characteristic of vertical distribution and horizontal distribution and habitat of Chimonanthus germplasm in China.

根据对中国蜡梅属种质资源的调查，结合已有资料，重点阐述了中国蜡梅属植物的地理分布、水平和垂直分布特点及其生境特点。

The study was conducted to construct the cDNA library of Chimonanthus praecox flower and analyze the expression of LTP cDNA.

构建蜡梅花cDNA文库，分析蜡梅脂转移蛋白基因的表达，为探索蜡梅冬季开花分子机理，分离克隆特色基因奠定基础。

In attempt to elucidate the molecular mechanism of cold tolerance of wintersweet, which blooms in the deep winter,a COR413 protein gene, designated as Cpcor413pm1, was obtained by sequencing the randomly selected clones, on the basis of Chimonanthus praecox flower cDNA library construction and its ESTs analysis.

为研究蜡梅冬季开花过程的抗寒分子机理，在构建蜡梅花cDNA文库及EST分析的基础上，通过随机克隆测序，克隆了1个蜡梅COR413蛋白的cDNA基因，命名为Cpcor413pm1。

The topological differences observed between the MP and BI analyses focused on the internal clades of Ranales and Rosales.

两种方法中，蜡梅科的单系都得到了确认，贵州蜡梅、山蜡梅和蜡梅聚成一组，分别得到了98％和82％的支持。

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。