摘要
本文在对芍药属Paeonia3个组14种及2亚种植物根皮中丹皮酚类和芍药苷类成分进行分析的基础上,探讨了这些成分在牡丹组sect.Moutan、芍药组sect.Paeonia和北美芍药组sect.Onaepia中的存在和含量情况。sect.Moutan中,丹皮酚类化合物是所有种类的高含量成分;sect.Paeonia有4个类群即芍药P.lactiflora、川赤芍P.anomala ssp.veitchii、美丽芍药P.mairei和块根芍药P.intermedia检测出微量的丹皮酚类成分,北美芍药组中不含有丹皮酚类成分。丹皮酚是结构简单和在植物中比较常见的化合物,该化合物的减少和缺失可能是进化的结果。可推测芍药属三个组的关系为木本类型的牡丹组最为原始,最先从芍药属的祖先类型中衍生出来,而草本类型为次生类群。在草本类型中,与牡丹组关系较近的是芍药组。在牡丹组中,肉质花盘亚组subsect.Vaginatae的种类较革质花盘亚组subsect.Delavayanae种类的丹皮酚类成分为少,表现出较后者更进化一些。牡丹组中,含微量丹皮酚类成分的几个类群除美丽芍药外均是分布于中国的二倍体种,特别是芍药和川赤芍形态上属于芍药属的原始类群,而芍药组中形态特化的种类均未发现含有丹皮酚类。
In this paper, the paeonol, paeoniflorin and their analogs were analyzed in the roots of 14 species and 2 subspecies of Paeonia L. The existence and content of these compounds were discussed in three sections, sect. Moutan, sect. Paeonia and sect. Onaepia. In sect. Moutan, paeonol and its analogs were high in content in all species. In sect. Paeonia, low content ofpaeonol and its analogs were found in plants of four taxa, P. lactiflora, P. anomala ssp. veitchii, P. mairei and P. intermedia. None of these compounds was found in sect. Onaepia. Paeonol has a simple structure and is distributed widely in plant; its decrease and loss may be the result of evolution. Therefore, it is deduced that the relationship among the three sections of Paeonia might be that woody sect. Moutan is the more primitive and derived from the ancestor of Paeonia first. For the herbaceous sections, sect. Paeonia is more closely related to sect. Moutan than to sect. Onaepia. In sect. Moutan, there are less paeonol and its analogs in the species of subsect. Vaginata than in those of subsect. Delavayanae. Thus, the former may be considered more advanced. In sect. Paeonia, the taxa with minor content of paeonol and its analogs are diploid except P. mairei. Among them, P. lactiflora and P. anomala ssp. veitchii are relatively primitive by morphology. None ofpaeonol and its analogs was detected in the species with specialized form.
出处
《植物分类学报》
CSCD
北大核心
2008年第5期724-729,共6页
Acta Phytotaxonomica Sinica
