Acclimation to high CO2 in maize is related to water status and dependent on leaf rank

A - Papers appearing in refereed journals

Prins, A., Mukubi, J. M., Pellny, T. K., Verrier, P. J., Beyene, G., Lopes, M. S., Emami, K., Treumann, A., Lelarge-Trouverie, C., Noctor, G., Kunert, K. J., Kerchev, P. and Foyer, C. H. 2011. Acclimation to high CO2 in maize is related to water status and dependent on leaf rank. Plant, Cell and Environment. 34 (2), pp. 314-331.

AuthorsPrins, A., Mukubi, J. M., Pellny, T. K., Verrier, P. J., Beyene, G., Lopes, M. S., Emami, K., Treumann, A., Lelarge-Trouverie, C., Noctor, G., Kunert, K. J., Kerchev, P. and Foyer, C. H.
Abstract

The responses of C-3 plants to rising atmospheric CO2 levels are considered to be largely dependent on effects exerted through altered photosynthesis. In contrast, the nature of the responses of C-4 plants to high CO2 remains controversial because of the absence of CO2-dependent effects on photosynthesis. In this study, the effects of atmospheric CO2 availability on the transcriptome, proteome and metabolome profiles of two ranks of source leaves in maize (Zea mays L.) were studied in plants grown under ambient CO2 conditions (350 +/- 20 mu L L-1 CO2) or with CO2 enrichment (700 +/- 20 mu L L-1 CO2). Growth at high CO2 had no effect on photosynthesis, photorespiration, leaf C/N ratios or anthocyanin contents. However, leaf transpiration rates, carbohydrate metabolism and protein carbonyl accumulation were altered at high CO2 in a leaf-rank specific manner. Although no significant CO2-dependent changes in the leaf transcriptome were observed, qPCR analysis revealed that the abundance of transcripts encoding a Bowman-Birk protease inhibitor and a serpin were changed by the growth CO2 level in a leaf rank specific manner. Moreover, CO2-dependent changes in the leaf proteome were most evident in the oldest source leaves. Small changes in water status may be responsible for the observed responses to high CO2, particularly in the older leaf ranks.

KeywordsPlant Sciences
Year of Publication2011
JournalPlant, Cell and Environment
Journal citation34 (2), pp. 314-331
Digital Object Identifier (DOI)doi:10.1111/j.1365-3040.2010.02245.x
PubMed ID21054434
Open accessPublished as green open access
FunderAssociation of Commonwealth Universities
Scottish Crop Research Institute, UK
University of Leeds
ONE NorthEast
European Regional Development Fund
Biotechnology and Biological Sciences Research Council
Royal Society of London
Funder project or codeCentre for Crop Genetic Improvement (CGI)
Redox signalling and oxidative-stress-mediated control of plant growth and development
Plant growth responses to the environment: interfaces between anti-oxidants, PARP and the cell cycle [Hedden]
Publisher's version
PublisherWiley
Wiley-Blackwell
Grant IDGUN 2068793
SFRH/BPD/34310/2006
ISSN0140-7791

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