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本帖最后由 细胞海洋 于 2012-6-30 11:10 编辑 " E* v0 q* }+ B0 s$ f. Y5 ?) C
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COVER Wet bark of a Pacific yew tree (Taxus brevifolia) in ' F) e5 r3 H5 [& x5 C3 ]
Union, Washington, USA (vertical dimension ~15 centimeters). Wild Pacific yew
/ `# v$ I0 V# I- ^thrives in the damp coastal forests of northwestern North America, with thin ) I7 M6 ?2 u7 s& G# N! P" G/ G9 v p8 ]
bark ranging in color from rose to auburn. The anticancer agent pactitaxel was
- v! z2 S7 a5 ?% N% P9 Boriginally derived from yew trees. Such complex and useful compounds are just
0 r9 n! \5 L; @one of the many outputs from plant metabolic networks, as analyzed in the
7 s f* @3 u+ b3 X# Rspecial issue beginning on page 1657.
, C& `/ l; J; F5 I5 B5 L9 o8 rPhoto: Don Paulson, www.donpaulson.com 6 D. \- y; R" D- u- d. G( Q% n( e
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发表于 2012-6-30 00:27
发表于 2012-7-1 21:45
