Japan-China Joint Study on Chemotaxonomical and Species-biological Comparison of Useful Plants of Japan and Yunnan

从喜马拉雅植物与日本植物的亲缘关系出发，指出了云南植物的植物学意义。本研究与中国科学院昆明植物研究所密切合作，对云南与日本及有关地区的植物进行了化学分类和种生物学比较。获得了以下结果：1。人参属，五加科：揭示了云南人参属植物的皂苷成分与喜马拉雅山东部和九州南部人参属植物的相似性。分布区西部和南部边缘的植物皂甙含量异常。2.伞形科柴胡属：通过与中国北方、韩国、日本等地的药用植物的生理活性皂苷的比较，表明云南药用植物资源质量优良。3.葫芦科植物：从云南产植物中分离得到甜葫芦烷苷类化合物，并进行了结构鉴定。雪胆的糖苷成分与其分类学有着显著的相关性。4.山茶科，山茶属种：研究了一些该种的染色体数目。并对该种的染色体进行了形态学比较。5.细辛属，马兜铃科：采用气相色谱-质谱联用技术，对产于云南及我国其它地区的本种挥发油化学成分与日本的本种挥发油化学成分进行了比较，为日本本种的起源提供了重要依据。

Botanical significance of plants of Yunnan, China has been pointed out in view of bioloigical relationship between Himalayan and Japanese plants. In this research projcet, chemotaxonomical and species-biological comparison of plants of Yunnan with those of Japan and the related area has been conducted under the close co-operation with Kunming Institute of Botany, Academia Sinica. The following results were obtained;1. Panax species, Araliaceae: The similarity of the saponin-compostion of Panax species in Yunnan to those of Eastern Himalaya and South-Kyushu was disclosed. The anomalous saponin-compostions were observed for the plants growing in the western and southern limits of the distributuion. 2. Bupleurum species, Umbelliferae: Comparison of the physiologically active saponins of the species of Yunnan with those of northern China, Korea and Japan was conducted, showing the good quality of plants grwoing in Yunnan as the medicinal resources. 3. Cucurbitaceous plants: Isolation and structural determination of sweet cucurbitane-glycosides from plants of Yunnan were achieved. It was also revealed that glycoside-composition of Hemsleya spesies has the significant relationship with the taxonomy. 4. Camellia species, Camelliaceae: Chromosome number of a number of this species was investigated. The morphogical comparison of chromosomes of this species was also estalbished. 5. Asarum species, Aristolochiaceae: Chemical constituents of essential oils of this species growing in Yunnan and other districts of China were compared with those of Japan by GC-MS, affording the important evidence for the origin of Japanese species.