Subjects: Biology >> Botany >> Applied botany submitted time 2021-05-11 Cooperative journals: 《广西植物》
Abstract： Epimedium (Berberidaceae) is a hot and difficult topic in taxonomy, and its taxa have been published and revised frequently. In order to more clearly understand the variation of Epimedium, this paper systematically sorted out the important characters of Epimedium on the basis of consulting the research results and specimens, combined with the field investigation and analysis of the research group. The petal pattern is the most important basis for the taxonomy of Epimedium, but it is not absolutely stable, and there may be abundant variations in petal morphology within the species. The color of petals, the color of anthers, and even the size of flowers should not be used as the main basis for classification at least in some taxa. The rhizome type (compact or long creeping) is a useful taxonomic character in most taxa, but it should be based on extensive investigations. There are abundant variations in most taxa on the number and arrangement of leaves on flowering stem, which is difficult to be applied in practice. The variation of non-glandular hair characteristics is very complex and varies, so they should not be used as a key basis for species identification. The plants of genus Epimedium are generally shorter after cultivation, which suggests that it is necessary to conduct survey and morphological observation in natural habitats to understand the morphological characteristics of species. The genus Epimedium in China is still in active evolution, and its morphological variation is complicated. Therefore, cautious should be taken in species identification and resource utilization.
Subjects: Biology >> Botany >> Applied botany submitted time 2020-01-12 Cooperative journals: 《广西植物》
Abstract：淫羊藿是我国特有且传统的重要药用植物，逐渐步入大宗品种行列。物种的准确鉴定是药效保障和用药安全的前提。为促进资源合理开发和利用，对淫羊藿属分类学研究进行系统梳理，并对其中存在的问题及存疑类群进行阐述。淫羊藿属共发表68 种，中国58种（85.3%），其中57 种为特有分布，具显著资源优势。淫羊藿属中国类群的分类学研究较为特殊，共26 种集中发表于1990 s，共31 种（53.4%）为国外研究者命名，且绝大多数依据于少量栽培个体命名。缺乏广泛的形态调查和性状变异分析，导致大量类群的形态描述不准确或不全面，后续20 个类群被归并或降级。依据栽培个体命名的类群是补充描述和分类修订的重点。花色、根茎类型、花茎叶的数量及着生方式等性状在中国类群中存在广泛变异。经分类修订后，该属目前包括46 种、1 亚种和2 变种。淫羊藿属中国组类群仍处于活跃进化中，其形态变异复杂，种间关系无法得到解决，为该属分类的最大挑战。但种质资源的研究和利用需建立在清晰的分类学基础上。未来研究首先要基于居群调查，完善各物种的形态描述。在此基础上，整合形态变异特征、地理分布格局和基因序列特征，检测自然种间杂交事件，揭示物种的分化和进化历程。
Subjects: Biology >> Botany >> Applied botany submitted time 2019-06-17 Cooperative journals: 《广西植物》
Abstract：植物原生质体是去除了细胞壁的裸露细胞，其具有细胞全能性，现在广泛应用于植物分子细胞生物学的研究中，可以大大缩减实验周期，并有助于得到体内实验的实时检测数据。该文除了介绍植物原生质体的提取和纯化方法外，还对国内外利用各种植物的原生质体进行细胞瞬时转化、亚细胞定位、细胞融合和大分子复合物相互作用等试验进行了总结和讨论。植物原生质体还可用于基因表达模式的实时监测，并作为生物反应器的受体细胞进行代谢物的体外生产。此外，当前该技术所面临的瓶颈也进行了分析，为植物原生质体在分子细胞生物学领域的应用提供帮助，为技术的优化和推广提供参考。
Hits
Hits
Downloads
Comment