高等植物中赤霉素的生物合成及其调控高等植物中赤霉素的生物合成及其调控.pdf

38 1 , 2002 2 1 Reviews 王金祥 李 玲 潘瑞炽( , 510631) Gibberellin Biosynthesis and Its Regulation in Higher Plants WANG Jin-Xing, LI Ling, PAN Ru-i Chi ( Dep ar tment of B iology , South China N or mal University , Guangz hou 510631) 介绍了近年来赤霉素生物合成中的位置途径酶基因及其调节等方面的研究 展 赤霉素 生物合成 调控 ( gibberellin, GA) , 1 GA (precursor) , (geranylgeranyl pyrophosphate, GGPP) , , GA , GA GGPP ( iso entenyl di hos- hate, IPP) 1 GGPP [ 1] MVA: ; IPP: ; IPP2: IPP ; DMAPP: ; GGPP ; GA2( KS) : - ; GPP: ; FPP: ;U Q : Q; GA 1: ; GAP: -3- ; GGPS1-6: 1- 6; CLA 1: ;GGR 2000-11-27 2001- 08-03 2 38 1 , 2002 2 GGPP, GGPP ( co alyl di hos hate, ( 1) [ 1] GGPP CPP) , -( ent-kaurene syn- : ( mevalonic acid , MVA) thase, KS) - 1 , , , , - GA - 12 GGPP CoA ( GA12-aldehyde) CoA MVA, MVA P450 ( monooxygenase) IPP; IPP IPP , O NADPH - 2 ( IPP isomerase, IPP2) -( ent-kaurenol) - ( dimethylallyl y- ( ent-kaurenal) -( ent-kaurenoic ro hos hate, DMAPP) , DMAPP acid) , -7--( ent-7-hydroxykau- , IPP renoic acid) , GA12- , GA - GA ( geranyl yro hos hate synthase, GPS) , 12 C - ( geranyl GA -C-7 , GA , 10 12 12 C-20 , GA GA yro hos hate, GPP) GPP IPP 53 53 GA GA 20-( GA 20-oxydase) GA ( fa