|
- 积分
- 17983
- 威望
- 17983
- 包包
- 26159
|
本帖最后由 细胞海洋 于 2012-6-30 11:10 编辑
$ l5 e2 i1 n8 f* I6 y; J. d+ ]0 ?4 a
8 H# ]) ]: }, @4 o3 ~$ k E+ h + U+ k4 Q: U' _6 U; }+ I) e1 D. H
COVER Wet bark of a Pacific yew tree (Taxus brevifolia) in
% V& k; j) j5 i/ N. TUnion, Washington, USA (vertical dimension ~15 centimeters). Wild Pacific yew
* P1 [6 Q( }& z2 ]thrives in the damp coastal forests of northwestern North America, with thin / i7 A/ ^; r- |9 A( Q z
bark ranging in color from rose to auburn. The anticancer agent pactitaxel was 3 c/ y; j* {: Z6 H
originally derived from yew trees. Such complex and useful compounds are just
8 r$ Y2 H: C' U+ sone of the many outputs from plant metabolic networks, as analyzed in the 1 a3 L( i/ L9 H( T4 O
special issue beginning on page 1657.
2 V, k% p/ l5 n$ ?( v: D9 n: jPhoto: Don Paulson, www.donpaulson.com
4 x& I7 j C: u" ]
1 p- V$ n& s$ \( `$ m. p
% e8 Q& h9 I* ^$ g7 l& K( n3 h |
附件: 你需要登录才可以下载或查看附件。没有帐号？注册
-
总评分: 威望 + 20
包包 + 20
查看全部评分
|
发表于 2012-6-30 00:27
" |+ Y; X2 F1 H! C' H9 f* k! G# ]! G
发表于 2012-7-1 21:45
