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本帖最后由 细胞海洋 于 2012-6-30 11:10 编辑 6 g1 D) C* h* E4 K
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COVER Wet bark of a Pacific yew tree (Taxus brevifolia) in
q7 a" g. `/ D* L7 t2 fUnion, Washington, USA (vertical dimension ~15 centimeters). Wild Pacific yew
' Y* u1 @) d9 O; [# mthrives in the damp coastal forests of northwestern North America, with thin
% i9 l& p2 Z3 X7 ?bark ranging in color from rose to auburn. The anticancer agent pactitaxel was
% @% N5 h7 D% x2 D" h+ i' Toriginally derived from yew trees. Such complex and useful compounds are just
1 v1 V" u" W" W/ Lone of the many outputs from plant metabolic networks, as analyzed in the 3 W' ?8 l* h, r
special issue beginning on page 1657.
/ b) e% Q+ a7 N+ ]* K+ J; A. k$ [( APhoto: Don Paulson, www.donpaulson.com
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发表于 2012-6-30 00:27
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发表于 2012-7-1 21:45
