Camptotheca: Difference between revisions
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'''''Camptotheca''''' ('''happy tree''', '''cancer tree''', or '''tree of life''') is a genus of medium-sized [[deciduous]] [[tree]]s 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]]. |
'''''Camptotheca''''' ('''happy tree''', '''cancer tree''', or '''tree of life''') is a genus of medium-sized [[deciduous]] [[tree]]s 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]]. |
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The name "happy tree" is a direct translation of the [[Chinese language|Chinese]] name ''' |
The name "happy tree" is a direct translation of the [[Chinese language|Chinese]] name '''xǐ shù''' ([[Simplified Chinese]]:'''喜树'''). |
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There are two species: |
There are two species: |
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Revision as of 15:15, 1 August 2015
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| Camptotheca acuminata | |
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| Genus: | Camptotheca |
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Camptotheca acuminata | |
Camptotheca (happy tree, cancer tree, or tree of life) is a genus of medium-sized deciduous trees growing to 20 metres (66 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:
- Camptotheca acuminata Decne.
- Camptotheca lowreyana S.Y.Li
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]
References
- ^ a b Li, S.; Zhang, Z.; Cain, A.; Wang, B.; Long, M.; Taylor, J. (2005). "Antifungal Activity of Camptothecin, Trifolin, and Hyperoside Isolated from Camptotheca acuminata". Journal of Agricultural and Food Chemistry. 53 (1): 32–37. doi:10.1021/jf0484780. PMID 15631505.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ G. Samuelsson (2004). Drugs of Natural Origin: a Textbook of Pharmacognosy (5 ed.). Stokkholm: Swedish pharmaceutical press. ISBN 91-974318-4-2.
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