多胺的代谢 多胺的生物合成 多胺的吸收与运输 果树卷业须去生瀑程ao1
果树专业硕士生课程-yao1 多胺的代谢 多胺的生物合成 多胺的吸收与运输
A Mammals B Fangi 3-AAP ARG ARG ORN PUT SPD -ORN PUT SPD SAM- dcSAM MTA MTA SAM dcSAM SAMDC MTA MTA SAMDC C Bacteria D Plants AGMATINE ARG -ADC AGMATINE AgUH Arginase UREA NCP NCPase ORN PUT SPD ORN PUT SPD SAM-SAMDC→deSAM MTA SAM- dcSAM SAMDC MTA MTA Fig.1.Schematic representation of the polyamine biosynthetic pathway and its variants in mammals(A),fungi(B),bacteria(C). and plants (D).In panels B and C,the dotted lines represent the endogenous biosynthesis of ornithine and arginine;in mammals (panel A),the ornithine used for polyamine biosynthesis comes largely from the diet.Abbreviations:ARG,arginine;3-AAP,3-acet- amidopropanal;AcCoA,acetyl coenzyme A;AcSPD,acetylspermidine;AcSPM,acetylspermine:ADC,arginine decarboxylase; AgUH,agmatine ureohydrolase;AIH,agmatine iminohydrolase;dcSAM,decarboxylated SAM;FBI,feedback inhibition (of argin- ine on ornithine biosynthesis);MTA,methylthioadenosine;NCPase,N-carbamoylputrescine amidohydrolase;ORN,ornithine; ODC,ornithine decarboxylase;PUT,putrescine;SAMDC,SAM decarboxylase;SPD, spermidine;SPM,spermine
果树专业硕士生课程-yao1
乙烯 精氨酸 鸟氨酸 Ethylene Arginine Orithine IADC DFMA DFMO 鲱精氨 ODC Agmatine 1-氨基环丙烷-羧基 ACC 氨-氨基甲酰一腐胺 腐胺 1 N-carbamoyl-putrescine Putrescine 转甲基作用反应 Transmethylation reactions 硫-腺苷甲氨酸 S-腺苷-3-甲疏基丙胺 CHA S-adenosylmethionine Decarboxylated SAM MGBG 5-甲基硫腺苷 5-methylthioadenosine 蛋氨酸 精胺 亚精胺 Methionine Spermine Spermidine 图1植物体内多胺的生物代谢途径 Fig.1 Polyaminenes metabolic pathways in plants
果树专业硕士生课程-yao1 ODC ADC
02+H20 H202 NAD' NADH DAO PYRR-DH PUT PYRR GABA Succinate 琥珀酸 多胺的生物降解 SPD 02 PAO H202 DAP B-alanine PYRR吡咯啉 H20 丙氨酸 GABA Y-氨基丁酸 SPM DAP二氨基丙烷 -(3-aminopropyl)-PYRR DAO二胺氧化酶 1-(3-氨丙基)-吡咯啉 PAO多胺氧化酶 PYRR-DH吡咯啉脱氢酶 1,5-diazabicyclononane Fig.2.Schematic representation of polyamine degradation by amine oxidases.Abbreviations:DAO,diamine oxidase;DAP diaminopropane;GABA,y-aminobutyric acid;PAO,polyamine oxidase;PYRR,pyrroline;PYRR-DH,pyrroline dehydroge- nase. 果树◆些须去生课程yaol
果树专业硕士生课程-yao1 多胺的生物降解 PYRR 吡咯啉 GABA -氨基丁酸 DAP 二氨基丙烷 DAO 二胺氧化酶 PAO 多胺氧化酶 PYRR-DH 吡咯啉脱氢酶 琥珀酸 丙氨酸 1-(3-氨丙基)-吡咯啉
硫腺苷甲氨酸(SAM)在多胺和乙 烯的生物合成中的枢纽地位 TRANSMETHYLATION PUT N-methyl-Put ALKALOIDS REACTIONS SAM ETHYLENE PUT SPD/SPM Fig.3.Pivotal role of SAM in the metabolic fluxes leading to transmethylation reactions and to the biosynthesis of ethylene, polyamines and putrescine-derived alkaloids. 果树毒业硕去生瀑醒a⊙引
果树专业硕士生课程-yao1 硫腺苷甲氨酸（SAM）在多胺和乙 烯的生物合成中的枢纽地位