Regulation of peroxiredoxin expression versus expression of Halliwell-Asada-Cycle enzymes during early seedling development of Arabidopsis thaliana

Pena-Ahumada A, Kahmann U, Dietz K-J, Baier M (2006)
PHOTOSYNTHESIS RESEARCH 89(2-3): 99-112.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
During early seedling development of oil seed plants, the transition from lipid based heterotrophic to photoautotrophic carbohydrate metabolism is accompanied with a biphasic control of the chloroplast antioxidant system. In continuous light, organellar peroxiredoxins (Prx) and thylakoid-bound ascorbate peroxidase (tAPx) are activated early in seedling development, while stromal ascorbate peroxidase (sAPx), Cu/Zn-superoxide dismutase-2 (Csd2) and monodehydroascorbate reductase (MDHAR) and the cytosolic peroxiredoxins PrxIIB, PrxIIC and PrxIID are fully activated between 2.5 and 3 days after radicle emergence (DARE). Discontinuous light synchronized the expression of chloroplast antioxidant enzymes, but defined diurnally specific typeII-Prx-patterns in the cytosol and initiated chloroplast senescence around 2.5 DARE. Carbohydrate feeding uncoupled sAPx expression from the light pattern. In contrast, sucrose-feeding did not significantly impact on Prx transcript amounts. It is concluded that upon post-germination growth Prxs are activated endogenously to provide early antioxidant protection, which is supported by the Halliwell-Asada-Cycle, whose expressional activation depends on metabolic signals provided only later in development or in day-night-cycles.
Stichworte
seedling development; reactive oxygen species; peroxiredoxin; photosynthesis; gene expression; antioxidants
Erscheinungsjahr
2006
Zeitschriftentitel
PHOTOSYNTHESIS RESEARCH
Band
89
Ausgabe
2-3
Seite(n)
99-112
ISSN
0166-8595
eISSN
1573-5079
Page URI
https://pub.uni-bielefeld.de/record/1597782

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Pena-Ahumada A, Kahmann U, Dietz K-J, Baier M. Regulation of peroxiredoxin expression versus expression of Halliwell-Asada-Cycle enzymes during early seedling development of Arabidopsis thaliana. PHOTOSYNTHESIS RESEARCH. 2006;89(2-3):99-112.
Pena-Ahumada, A., Kahmann, U., Dietz, K. - J., & Baier, M. (2006). Regulation of peroxiredoxin expression versus expression of Halliwell-Asada-Cycle enzymes during early seedling development of Arabidopsis thaliana. PHOTOSYNTHESIS RESEARCH, 89(2-3), 99-112. doi:10.1007/s11120-006-9087-3
Pena-Ahumada, A., Kahmann, U., Dietz, K. - J., and Baier, M. (2006). Regulation of peroxiredoxin expression versus expression of Halliwell-Asada-Cycle enzymes during early seedling development of Arabidopsis thaliana. PHOTOSYNTHESIS RESEARCH 89, 99-112.
Pena-Ahumada, A., et al., 2006. Regulation of peroxiredoxin expression versus expression of Halliwell-Asada-Cycle enzymes during early seedling development of Arabidopsis thaliana. PHOTOSYNTHESIS RESEARCH, 89(2-3), p 99-112.
A. Pena-Ahumada, et al., “Regulation of peroxiredoxin expression versus expression of Halliwell-Asada-Cycle enzymes during early seedling development of Arabidopsis thaliana”, PHOTOSYNTHESIS RESEARCH, vol. 89, 2006, pp. 99-112.
Pena-Ahumada, A., Kahmann, U., Dietz, K.-J., Baier, M.: Regulation of peroxiredoxin expression versus expression of Halliwell-Asada-Cycle enzymes during early seedling development of Arabidopsis thaliana. PHOTOSYNTHESIS RESEARCH. 89, 99-112 (2006).
Pena-Ahumada, Andrea, Kahmann, Uwe, Dietz, Karl-Josef, and Baier, Margarete. “Regulation of peroxiredoxin expression versus expression of Halliwell-Asada-Cycle enzymes during early seedling development of Arabidopsis thaliana”. PHOTOSYNTHESIS RESEARCH 89.2-3 (2006): 99-112.

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