| 词条 | Camptotheca |
| 释义 |
|image = Camptotheca acuminata HK.jpg |image_caption = Camptotheca acuminata |taxon = Camptotheca |authority = Decne. |subdivision_ranks = Species |subdivision = Camptotheca acuminata Camptotheca lowreyana }}{{Commons category}} Camptotheca (happy tree, cancer tree, or tree of life) is a genus of medium-sized deciduous trees growing to {{convert|20|m|ft}} tall, native to southern China and Tibet. The genus is usually included in the tupelo family Nyssaceae, but sometimes included (with the tupelos) in the dogwood family Cornaceae. The name "happy tree" is a direct translation of the Chinese name xǐ shù (Simplified Chinese:喜树). There are two species:
The bark and stems of C. acuminata contain the alkaloid camptothecin.[1] Several chemical derivatives of camptothecin are under investigation for or used as drugs for cancer treatment, including irinotecan, topotecan, rubitecan.[2] C. acuminata also contains the chemical compounds trifolin and hyperoside.[1]References1. ^1 {{ cite journal | title = Antifungal Activity of Camptothecin, Trifolin, and Hyperoside Isolated from Camptotheca acuminata |author1=Li, S. |author2=Zhang, Z. |author3=Cain, A. |author4=Wang, B. |author5=Long, M. |author6=Taylor, J. | journal = Journal of Agricultural and Food Chemistry | year = 2005 | volume = 53 | issue = 1 | pages = 32–37 | doi = 10.1021/jf0484780 | pmid = 15631505 }} {{Taxonbar|from=Q3274739}}2. ^{{Cite book| author = G. Samuelsson| title = Drugs of Natural Origin: a Textbook of Pharmacognosy | year = 2004 | publisher = Swedish pharmaceutical press | location = Stokkholm | edition = 5| isbn = 978-91-974318-4-2 }} 3 : Nyssaceae|Trees of China|Cornales genera |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。