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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Acclimation to high CO
2
in maize is related to water status and dependent on leaf rank
Plant, Cell and Environment, Volume 34, No. 2, Year 2011
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Description
The responses of C3 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 C4 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 μL L-1 CO2) or with CO2 enrichment (700 +/- 20 μL 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. © 2010 Blackwell Publishing Ltd.
Authors & Co-Authors
Prins, Anneke
South Africa, Pretoria
University of Pretoria
Mukubi, Josephine Muchwesi
South Africa, Pretoria
University of Pretoria
Pellny, Till K.
Unknown Affiliation
Verrier, Paul J.
United Kingdom, Harpenden
Rothamsted Research
Beyene, G.
South Africa, Pretoria
University of Pretoria
Lopes, Marta Silva
Mexico, Texcoco
Centro Internacional de Mejoramiento de Maiz y Trigo
Emami, Kaveh
United Kingdom, Newcastle
Newcastle University
Treumann, Achim
United Kingdom, Newcastle
Newcastle University
Lelarge-Trouverie, Caroline
France, Gif-sur-yvette
Université Paris-saclay
Noctor, Graham D.
France, Gif-sur-yvette
Université Paris-saclay
Kunert, Karl Josef
South Africa, Pretoria
University of Pretoria
Kerchev, Pavel
United Kingdom, Leeds
University of Leeds
FOYER, Christine H.
United Kingdom, Leeds
University of Leeds
Statistics
Citations: 13
Authors: 13
Affiliations: 7
Identifiers
Doi:
10.1111/j.1365-3040.2010.02245.x
ISSN:
01407791
Research Areas
Environmental