The essential role of sugar metabolism in the acclimation response of Arabidopsis thaliana to high light intensities

Schmitz J, Heinrichs L, Scossa F, Fernie AR, Oelze M-L, Dietz K-J, Rothbart M, Grimm B, Flügge U-I, Häusler RE (2014)
Journal of Experimental Botany 65(6): 1619-1636.

Zeitschriftenaufsatz | Veröffentlicht| Englisch
 
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Autor/in
Schmitz, Jessica; Heinrichs, Luisa; Scossa, Federico; Fernie, Alisdair R; Oelze, Marie-LuiseUniBi; Dietz, Karl-JosefUniBi; Rothbart, Maxi; Grimm, Bernhard; Flügge, Ulf-Ingo; Häusler, Rainer E
Abstract / Bemerkung
Retrograde signals from chloroplasts are thought to control the expression of nuclear genes associated with plastidial processes such as acclimation to varying light conditions. Arabidopsis mutants altered in the day and night path of photoassimilate export from the chloroplasts served as tools to study the involvement of carbohydrates in high light (HL) acclimation. A double mutant impaired in the triose phosphate/phosphate translocator (TPT) and ADP-glucose pyrophosphorylase (AGPase) (adg1-1/tpt-2) exhibits a HL-dependent depletion in endogenous carbohydrates combined with a severe growth and photosynthesis phenotype. The acclimation response of mutant and wild-type plants has been assessed in time series after transfer from low light (LL) to HL by analysing photosynthetic performance, carbohydrates, MgProtoIX (a chlorophyll precursor), and the ascorbate/glutathione redox system, combined with microarray-based transcriptomic and GC-MS-based metabolomic approaches. The data indicate that the accumulation of soluble carbohydrates (predominantly glucose) acts as a short-term response to HL exposure in both mutant and wild-type plants. Only if carbohydrates are depleted in the long term (e.g. after 2 d) is the acclimation response impaired, as observed in the adg1-1/tpt-2 double mutant. Furthermore, meta-analyses conducted with in-house and publicly available microarray data suggest that, in the long term, reactive oxygen species such as H2O2 can replace carbohydrates as signals. Moreover, a cross-talk exists between genes associated with the regulation of starch and lipid metabolism. The involvement of genes responding to phytohormones in HL acclimation appears to be less likely. Various candidate genes involved in retrograde control of nuclear gene expression emerged from the analyses of global gene expression.
Erscheinungsjahr
2014
Zeitschriftentitel
Journal of Experimental Botany
Band
65
Ausgabe
6
Seite(n)
1619-1636
ISSN
0022-0957
eISSN
1460-2431
Page URI
https://pub.uni-bielefeld.de/record/2672819

Zitieren

Schmitz J, Heinrichs L, Scossa F, et al. The essential role of sugar metabolism in the acclimation response of Arabidopsis thaliana to high light intensities. Journal of Experimental Botany. 2014;65(6):1619-1636.
Schmitz, J., Heinrichs, L., Scossa, F., Fernie, A. R., Oelze, M. - L., Dietz, K. - J., Rothbart, M., et al. (2014). The essential role of sugar metabolism in the acclimation response of Arabidopsis thaliana to high light intensities. Journal of Experimental Botany, 65(6), 1619-1636. doi:10.1093/jxb/eru027
Schmitz, J., Heinrichs, L., Scossa, F., Fernie, A. R., Oelze, M. - L., Dietz, K. - J., Rothbart, M., Grimm, B., Flügge, U. - I., and Häusler, R. E. (2014). The essential role of sugar metabolism in the acclimation response of Arabidopsis thaliana to high light intensities. Journal of Experimental Botany 65, 1619-1636.
Schmitz, J., et al., 2014. The essential role of sugar metabolism in the acclimation response of Arabidopsis thaliana to high light intensities. Journal of Experimental Botany, 65(6), p 1619-1636.
J. Schmitz, et al., “The essential role of sugar metabolism in the acclimation response of Arabidopsis thaliana to high light intensities”, Journal of Experimental Botany, vol. 65, 2014, pp. 1619-1636.
Schmitz, J., Heinrichs, L., Scossa, F., Fernie, A.R., Oelze, M.-L., Dietz, K.-J., Rothbart, M., Grimm, B., Flügge, U.-I., Häusler, R.E.: The essential role of sugar metabolism in the acclimation response of Arabidopsis thaliana to high light intensities. Journal of Experimental Botany. 65, 1619-1636 (2014).
Schmitz, Jessica, Heinrichs, Luisa, Scossa, Federico, Fernie, Alisdair R, Oelze, Marie-Luise, Dietz, Karl-Josef, Rothbart, Maxi, Grimm, Bernhard, Flügge, Ulf-Ingo, and Häusler, Rainer E. “The essential role of sugar metabolism in the acclimation response of Arabidopsis thaliana to high light intensities”. Journal of Experimental Botany 65.6 (2014): 1619-1636.

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