图1 植物糖信号转导途径 植物可分别通过依赖己糖激酶(HXK)、G蛋白信号1调节子(RGS1)、糖酵解(EMP)和磷酸戊糖途径(PPP)的信号途径转导糖信号,继而上调叶绿素a/b结合蛋白1(CAB1)、质体蓝素(PC)和核酮糖1, 5-二磷酸羧化/加氧酶(Rubisco)、查尔酮合酶(CHS)、苯丙氨酸裂解酶(PAL)、腺苷二磷酸-葡萄糖焦磷酸化酶(AGPase)、天冬酰氨合成酶1(AS1)、蛋白S6激酶(S6K)、自噬相关蛋白(ATG)、NO3-转运蛋白(NTR)、SO42-转运蛋白(SULTR)等的基因表达,最终整合生长发育及逆境响应。依赖HXK、RGS1、EMP和PPP的信号途径可分别被2-脱氧甘露糖(Man)、2-脱氧葡萄糖(2-DG)、3-O-甲基葡萄糖(3-OMG)和6-脱氧葡萄糖(6-DG)所促进,被甘露庚酮糖(MHP)、葡萄糖胺(GCN)、苏拉明(SUR)、AZD-8055、葡萄糖-6-磷酸(G6P)和6-氨基烟酰胺(6-AN)所抑制。(+)表示促进,(├)表示抑制
Fig. 1 Sugar signaling pathways in plants Plants can transduce sugar signaling by hexokinase(HXK)-,regulator of G protein signaling1(RGS1)-,glycolysis(EMP)-,and pentose phosphate pathway(PPP)-dependent signaling pathways,which in turn up-regulate gene expression of chlorophyll a/b-binding protein1(CAB1)、plastocyanin(PC),ribulose-1, 5-bisphosphate carboxylase/oxygenase(Rubisco),chalcone synthase(CHS),phenylalanine amonia-lyase(PAL),adenosine diphosphate-glucose pyrophosphorylase(AGPase),asparagine synthetase1(AS1),protein S6 kinase(S6K),autophagy-related protein(ATG),nitrate transporter(NTR),and sulfate transporter(SULTR),and then integrate plant growth,development,and response to environmental stress. The HXK-,RGS1-,EMP- and PPP-dependent sugar signaling pathways can be activated by 2-deoxymannose(Man),2-deoxyglucose(2-DG),3-O-methyl-D-glucose(3-OMG)and 6-deoxyglucose(6-DG),respectively,while inactivated by mannoheptulose(MHP),glucosamine(GCN),suramin(SUR),AZD-8055,glucose-6-phosphate(G6P)and 6-aminonicotinamide(6-AN),respectively.(+)represents promotion,while(├)represents inhibiton
图1 植物糖信号转导途径 植物可分别通过依赖己糖激酶(HXK)、G蛋白信号1调节子(RGS1)、糖酵解(EMP)和磷酸戊糖途径(PPP)的信号途径转导糖信号,继而上调叶绿素a/b结合蛋白1(CAB1)、质体蓝素(PC)和核酮糖1, 5-二磷酸羧化/加氧酶(Rubisco)、查尔酮合酶(CHS)、苯丙氨酸裂解酶(PAL)、腺苷二磷酸-葡萄糖焦磷酸化酶(AGPase)、天冬酰氨合成酶1(AS1)、蛋白S6激酶(S6K)、自噬相关蛋白(ATG)、NO3-转运蛋白(NTR)、SO42-转运蛋白(SULTR)等的基因表达,最终整合生长发育及逆境响应。依赖HXK、RGS1、EMP和PPP的信号途径可分别被2-脱氧甘露糖(Man)、2-脱氧葡萄糖(2-DG)、3-O-甲基葡萄糖(3-OMG)和6-脱氧葡萄糖(6-DG)所促进,被甘露庚酮糖(MHP)、葡萄糖胺(GCN)、苏拉明(SUR)、AZD-8055、葡萄糖-6-磷酸(G6P)和6-氨基烟酰胺(6-AN)所抑制。(+)表示促进,(├)表示抑制
Fig. 1 Sugar signaling pathways in plants Plants can transduce sugar signaling by hexokinase(HXK)-,regulator of G protein signaling1(RGS1)-,glycolysis(EMP)-,and pentose phosphate pathway(PPP)-dependent signaling pathways,which in turn up-regulate gene expression of chlorophyll a/b-binding protein1(CAB1)、plastocyanin(PC),ribulose-1, 5-bisphosphate carboxylase/oxygenase(Rubisco),chalcone synthase(CHS),phenylalanine amonia-lyase(PAL),adenosine diphosphate-glucose pyrophosphorylase(AGPase),asparagine synthetase1(AS1),protein S6 kinase(S6K),autophagy-related protein(ATG),nitrate transporter(NTR),and sulfate transporter(SULTR),and then integrate plant growth,development,and response to environmental stress. The HXK-,RGS1-,EMP- and PPP-dependent sugar signaling pathways can be activated by 2-deoxymannose(Man),2-deoxyglucose(2-DG),3-O-methyl-D-glucose(3-OMG)and 6-deoxyglucose(6-DG),respectively,while inactivated by mannoheptulose(MHP),glucosamine(GCN),suramin(SUR),AZD-8055,glucose-6-phosphate(G6P)and 6-aminonicotinamide(6-AN),respectively.(+)represents promotion,while(├)represents inhibiton