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Sumbele S, Fotelli MN, Nikolopoulos D, et al. Photosynthetic capacity is negatively correlated with the concentration of leaf phenolic compounds across a range of different species. AoB Plants. 2012;2012:pls025doi: 10.1093/aobpla/pls025.
Sumbele, S., Fotelli, M. N., Nikolopoulos, D., Tooulakou, G., Liakoura, V., Liakopoulos, G., Bresta, P., Dotsika, E., Adams, M. A., & Karabourniotis, G. (2012). Photosynthetic capacity is negatively correlated with the concentration of leaf phenolic compounds across a range of different species. AoB PLANTS, 2012pls025. https://doi.org/10.1093/aobpla/pls025
Sumbele, Sally, et al. "Photosynthetic capacity is negatively correlated with the concentration of leaf phenolic compounds across a range of different species." AoB PLANTS vol. 2012 (2012): pls025. doi: https://doi.org/10.1093/aobpla/pls025
Sumbele S, Fotelli MN, Nikolopoulos D, Tooulakou G, Liakoura V, Liakopoulos G, Bresta P, Dotsika E, Adams MA, Karabourniotis G. Photosynthetic capacity is negatively correlated with the concentration of leaf phenolic compounds across a range of different species. AoB Plants. 2012;2012:pls025. doi: 10.1093/aobpla/pls025. Epub 2012 Oct 05. PMID: 23050073; PMCID: PMC3465559.
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AoB Plants. 2012;2012:pls025. doi: 10.1093/aobpla/pls025. Epub 2012 Oct 05.

Photosynthetic capacity is negatively correlated with the concentration of leaf phenolic compounds across a range of different species.

AoB PLANTS

Sally Sumbele, Mariangela N Fotelli, Dimosthenis Nikolopoulos, Georgia Tooulakou, Vally Liakoura, Georgios Liakopoulos, Panagiota Bresta, Elissavet Dotsika, Mark A Adams, George Karabourniotis

Affiliations

  1. Laboratory of Plant Physiology, Department of Agricultural Biotechnology , Agricultural University of Athens , Iera Odos 75, Votanikos, 11855 Athens , Greece.

PMID: 23050073 PMCID: PMC3465559 DOI: 10.1093/aobpla/pls025

Abstract

BACKGROUND AND AIMS: Phenolic compounds are the most commonly studied of all secondary metabolites because of their significant protective-defensive roles and their significant concentration in plant tissues. However, there has been little study on relationships between gas exchange parameters and the concentration of leaf phenolic compounds (total phenolics (TP) and condensed tannins (CT)) across a range of species. Therefore, we addressed the question: is there any correlation between photosynthetic capacity (A(max)) and TP and CT across species from different ecosystems in different continents?

METHODOLOGY: A plethora of functional and structural parameters were measured in 49 plant species following different growth strategies from five sampling sites located in Greece and Australia. The relationships between several leaf traits were analysed by means of regression and principal component analysis.

PRINCIPAL RESULTS: The results revealed a negative relationship between TP and CT and A(max) among the different plant species, growth strategies and sampling sites, irrespective of expression (with respect to mass, area or nitrogen content). Principal component analysis showed that high concentrations of TP and CT are associated with thick, dense leaves with low nitrogen. This leaf type is characterized by low growth, A(max) and transpiration rates, and is common in environments with low water and nutrient availability, high temperatures and high light intensities. Therefore, the high TP and CT in such leaves are compatible with the protective and defensive functions ascribed to them.

CONCLUSIONS: Our results indicate a functional integration between carbon gain and the concentration of leaf phenolic compounds that reflects the trade-off between growth and defence/protection demands, depending on the growth strategy adopted by each species.

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