Details
| Original language | English |
|---|---|
| Pages (from-to) | 1491-8 |
| Number of pages | 8 |
| Journal | Journal of experimental botany |
| Volume | 56 |
| Issue number | 416 |
| Publication status | Published - Jun 2005 |
Abstract
Chloroplasts contain 3000-4000 different proteins but only a small subset of them is encoded in the plastid genome while the majority is encoded in the nucleus. Expression of these genes therefore requires a high degree of co-ordination between nucleus and chloroplast. This is achieved by a bilateral information exchange between both compartments including nucleus-to-plastid (anterograde) and plastid-to-nucleus (retrograde) signals. The latter represent a functional feedback control which couples the expression of nuclear encoded plastid proteins to the actual functional state of the organelle. The efficiency of photosynthesis is a very important parameter in this context since it is influenced by many environmental conditions and therefore represents a sensor for the residing environment. Components of the photosynthetic electron transport chain exhibit significant changes in their reduction/oxidation (redox) state depending on the photosynthetic electron flow and therefore serve as signalling parameters which report environmental influences on photosynthesis. Such redox signals control chloroplast and nuclear gene expression events and play an important role in the co-ordination of both genetic compartments. It is discussed here which photosynthetic parameters are known to control nuclear gene expression, how these signals are transduced toward the nucleus, and how they interact with other plastid retrograde signals and cytosolic light perception systems.
Keywords
- Adaptation, Physiological, Cell Nucleus/metabolism, Gene Expression Regulation, Plant/physiology, Light, Oxidation-Reduction, Photosynthesis/physiology, Plant Proteins/biosynthesis, Signal Transduction
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In: Journal of experimental botany, Vol. 56, No. 416, 06.2005, p. 1491-8.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Photosynthetic redox control of nuclear gene expression
AU - Fey, Vidal
AU - Wagner, Raik
AU - Bräutigam, Katharina
AU - Pfannschmidt, Thomas
N1 - Funding information: We thank R Oelmuller and D Leister for their important help in several fruitful collaborations. The work of our group is supported by grants from the Deutsche Forschungsgemeinschaft to TP and the DFG Research group FOR 387.
PY - 2005/6
Y1 - 2005/6
N2 - Chloroplasts contain 3000-4000 different proteins but only a small subset of them is encoded in the plastid genome while the majority is encoded in the nucleus. Expression of these genes therefore requires a high degree of co-ordination between nucleus and chloroplast. This is achieved by a bilateral information exchange between both compartments including nucleus-to-plastid (anterograde) and plastid-to-nucleus (retrograde) signals. The latter represent a functional feedback control which couples the expression of nuclear encoded plastid proteins to the actual functional state of the organelle. The efficiency of photosynthesis is a very important parameter in this context since it is influenced by many environmental conditions and therefore represents a sensor for the residing environment. Components of the photosynthetic electron transport chain exhibit significant changes in their reduction/oxidation (redox) state depending on the photosynthetic electron flow and therefore serve as signalling parameters which report environmental influences on photosynthesis. Such redox signals control chloroplast and nuclear gene expression events and play an important role in the co-ordination of both genetic compartments. It is discussed here which photosynthetic parameters are known to control nuclear gene expression, how these signals are transduced toward the nucleus, and how they interact with other plastid retrograde signals and cytosolic light perception systems.
AB - Chloroplasts contain 3000-4000 different proteins but only a small subset of them is encoded in the plastid genome while the majority is encoded in the nucleus. Expression of these genes therefore requires a high degree of co-ordination between nucleus and chloroplast. This is achieved by a bilateral information exchange between both compartments including nucleus-to-plastid (anterograde) and plastid-to-nucleus (retrograde) signals. The latter represent a functional feedback control which couples the expression of nuclear encoded plastid proteins to the actual functional state of the organelle. The efficiency of photosynthesis is a very important parameter in this context since it is influenced by many environmental conditions and therefore represents a sensor for the residing environment. Components of the photosynthetic electron transport chain exhibit significant changes in their reduction/oxidation (redox) state depending on the photosynthetic electron flow and therefore serve as signalling parameters which report environmental influences on photosynthesis. Such redox signals control chloroplast and nuclear gene expression events and play an important role in the co-ordination of both genetic compartments. It is discussed here which photosynthetic parameters are known to control nuclear gene expression, how these signals are transduced toward the nucleus, and how they interact with other plastid retrograde signals and cytosolic light perception systems.
KW - Adaptation, Physiological
KW - Cell Nucleus/metabolism
KW - Gene Expression Regulation, Plant/physiology
KW - Light
KW - Oxidation-Reduction
KW - Photosynthesis/physiology
KW - Plant Proteins/biosynthesis
KW - Signal Transduction
U2 - 10.1093/jxb/eri180
DO - 10.1093/jxb/eri180
M3 - Article
C2 - 15863445
VL - 56
SP - 1491
EP - 1498
JO - Journal of experimental botany
JF - Journal of experimental botany
SN - 0022-0957
IS - 416
ER -