Title |
Depth-specific fluctuations of gene expression and protein abundance modulate the photophysiology in the seagrass Posidonia oceanica
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Published in |
Scientific Reports, February 2017
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DOI | 10.1038/srep42890 |
Pubmed ID | |
Authors |
Gabriele Procaccini, Miriam Ruocco, Lázaro Marín-Guirao, Emanuela Dattolo, Christophe Brunet, Daniela D’Esposito, Chiara Lauritano, Silvia Mazzuca, Ilia Anna Serra, Letizia Bernardo, Amalia Piro, Sven Beer, Mats Björk, Martin Gullström, Pimchanok Buapet, Lina M. Rasmusson, Paulo Felisberto, Sylvie Gobert, John W. Runcie, João Silva, Irene Olivé, Monya M. Costa, Isabel Barrote, Rui Santos |
Abstract |
Here we present the results of a multiple organizational level analysis conceived to identify acclimative/adaptive strategies exhibited by the seagrass Posidonia oceanica to the daily fluctuations in the light environment, at contrasting depths. We assessed changes in photophysiological parameters, leaf respiration, pigments, and protein and mRNA expression levels. The results show that the diel oscillations of P. oceanica photophysiological and respiratory responses were related to transcripts and proteins expression of the genes involved in those processes and that there was a response asynchrony between shallow and deep plants probably caused by the strong differences in the light environment. The photochemical pathway of energy use was more effective in shallow plants due to higher light availability, but these plants needed more investment in photoprotection and photorepair, requiring higher translation and protein synthesis than deep plants. The genetic differentiation between deep and shallow stands suggests the existence of locally adapted genotypes to contrasting light environments. The depth-specific diel rhythms of photosynthetic and respiratory processes, from molecular to physiological levels, must be considered in the management and conservation of these key coastal ecosystems. |
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Sweden | 4 | 25% |
United Kingdom | 2 | 13% |
France | 2 | 13% |
Australia | 1 | 6% |
Central African Republic | 1 | 6% |
Italy | 1 | 6% |
Poland | 1 | 6% |
Unknown | 4 | 25% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 12 | 75% |
Scientists | 3 | 19% |
Science communicators (journalists, bloggers, editors) | 1 | 6% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 83 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 15 | 18% |
Student > Ph. D. Student | 12 | 14% |
Other | 6 | 7% |
Professor | 6 | 7% |
Student > Doctoral Student | 5 | 6% |
Other | 15 | 18% |
Unknown | 24 | 29% |
Readers by discipline | Count | As % |
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Environmental Science | 10 | 12% |
Biochemistry, Genetics and Molecular Biology | 7 | 8% |
Unspecified | 3 | 4% |
Engineering | 2 | 2% |
Other | 3 | 4% |
Unknown | 31 | 37% |