Cytosolic NADP-isocitrate dehydrogenase in Arabidopsis leaves and roots

被引：24

作者：

Leterrier, M. ^{[1
]}

Barroso, J. B. ^{[2
]}

Palma, J. M. ^{[1
]}

Corpas, F. J. ^{[1
]}

机构：

[1] CSIC, Dept Bioquim Biol Celular & Mol Plantas, Estn Expt Zaidin, E-18080 Granada, Spain

[2] Univ Jaen, Dept Bioquim & Biol Mol, Grp Senalizac Mol & Sistemas Antioxidantes Planta, Unidad Asociada CSIC, E-23071 Jaen, Spain

来源：

BIOLOGIA PLANTARUM | 2012年 / 56卷 / 04期

关键词：

hydrogen peroxide; nitric oxide; peroxynitrite; reactive nitrogen species; S-nitrosoglutathione; NITRIC-OXIDE; REDOX HOMEOSTASIS; PEA-PLANTS; STRESS; PURIFICATION; EXPRESSION; SYNTHASE; ENZYME; INACTIVATION; ASSIMILATION;

D O I：

10.1007/s10535-012-0244-6

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

NADP-dependent isocitrate dehydrogenase (NADP-ICDH) catalyses the production of NADPH, which is an essential component in the cellular homeostasis. In Arabidopsis, the kinetic parameters (K (m) and V (max)) of cytosolic NADP-ICDH were different in leaves and roots. In vitro applied H2O2 did not affect the NADP-ICDH activity in either organ, however, the reduced glutathione inhibited the activity in leaves but not in roots. On the other hand, S-nitrosoglutathione (a NO donor) and peroxynitrite depressed NADP-ICDH activity in leaves and roots.

引用

页码：705 / 710

页数：6

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