Dynamic Plastid Redox Signals Integrate Gene Expression and Metabolism to Induce Distinct Metabolic States in Photosynthetic Acclimation in Arabidopsis

被引：149

作者：

Braeutigam, Katharina ^{[1
]}

Dietzel, Lars ^{[1
]}

Kleine, Tatjana ^{[2
]}

Stroeher, Elke ^{[3
]}

Wormuth, Dennis ^{[3
]}

Dietz, Karl-Josef ^{[3
]}

Radke, Doerte ^{[4
,5
]}

Wirtz, Markus ^{[6
]}

Hell, Ruediger ^{[6
]}

Doermann, Peter ^{[7
]}

Nunes-Nesi, Adriano ^{[7
]}

Schauer, Nicolas ^{[7
]}

Fernie, Alisdair R. ^{[7
]}

Oliver, Sandra N. ^{[7
]}

Geigenberger, Peter ^{[7
]}

Leister, Dario ^{[2
]}

Pfannschmidt, Thomas ^{[1
]}

机构：

[1] Univ Jena, Nachwuchsgrp Pflanzl Anpassung Umweltveranderunge, Lehrstuhl Pflanzenphysiol, Inst Allgemeine Bot Pflanzenphysiol, D-07743 Jena, Germany

[2] Univ Munich, Lehrstuhl Bot, Dept Biol 1, D-82152 Martinsried, Germany

[3] Univ Bielefeld, Lehrstuhl Biochem & Pflanzenphysiol, D-33615 Bielefeld, Germany

[4] Hans Knoell Inst, D-07745 Jena, Germany

[5] Ernst Moritz Arndt Univ Greifswald, Inst Community Med, D-17475 Greifswald, Germany

[6] Heidelberg Univ, Heidelberg Inst Plant Sci, D-69120 Heidelberg, Germany

[7] Max Planck Inst Mol Pflanzenphysiol, D-14476 Potsdam, Germany

来源：

PLANT CELL | 2009年 / 21卷 / 09期

关键词：

PSBA MESSENGER-RNA; PHOTOSYSTEM STOICHIOMETRY; LIGHT QUALITY; NUCLEAR GENES; PROTEIN-PHOSPHORYLATION; STATISTICAL-ANALYSIS; QUANTUM EFFICIENCY; STARCH SYNTHESIS; HIGHER-PLANTS; SHORT-TERM;

D O I：

10.1105/tpc.108.062018

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Plants possess acclimation responses in which structural reconfigurations adapt the photosynthetic apparatus to fluctuating illumination. Long-term acclimation involves changes in plastid and nuclear gene expression and is controlled by redox signals from photosynthesis. The kinetics of these signals and the adjustments of energetic and metabolic demands to the changes in the photosynthetic apparatus are currently poorly understood. Using a redox signaling system that preferentially excites either photosystem I or II, we measured the time-dependent impact of redox signals on the transcriptome and metabolome of Arabidopsis thaliana. We observed rapid and dynamic changes in nuclear transcript accumulation resulting in differential and specific expression patterns for genes associated with photosynthesis and metabolism. Metabolite pools also exhibited dynamic changes and indicate readjustments between distinct metabolic states depending on the respective illumination. These states reflect reallocation of energy resources in a defined and reversible manner, indicating that structural changes in the photosynthetic apparatus during long-term acclimation are additionally supported at the level of metabolism. We propose that photosynthesis can act as an environmental sensor, producing retrograde redox signals that trigger two parallel adjustment loops that coordinate photosynthesis and metabolism to adapt plant primary productivity to the environment.

引用

页码：2715 / 2732

页数：18

共 98 条

[1] Redox state of plastoquionone pool regulates expression of Arabidopsis thaliana genes in response to elevated irradiance [J].