Ecologically diverse and distinct neighbourhoods trigger persistent phenotypic consequences, and amine metabolic profiling detects them
Bartish, Igor V.
Contributor(s)Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO) ; Université de Rennes 1 (UR1) - INEE - Observatoire des Sciences de l'Univers de Rennes (OSUR) - Centre National de la Recherche Scientifique (CNRS)
Unité de Recherche Pluridisciplinaire Prairies et Plantes Fourragères (P3F) ; Institut national de la recherche agronomique (INRA)
Institute of Botany ; Academy of Sciences of the Czech Republic
German Centre for Integrative Biodiversity Research (iDiv)
Special Botany and Functional Biodiversity ; University of Leipzig
Institut de Génétique, Environnement et Protection des Plantes (IGEPP) ; Université de Rennes 1 (UR1) - Agrocampus Ouest - Institut national de la recherche agronomique (INRA)
This work was supported by the Agence Nationale pour la Recherche in France (DISCOVER project) and CNRS ATIP ‘Ecodiv’ (A. P., F. H.). We thank the management team and the gardeners of the Jena Experiment which is funded by the Deutsche Forschungsgemeinschaft DFG (FOR 456).
common garden experiment
determinants of plant community diversity and structure
[SDV] Life Sciences [q-bio]
[SDV.BV] Life Sciences [q-bio]/Vegetal Biology
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AbstractWe thank Christian Huyghe for sampling plants in Jena and Magali Caillaud for setting up the experiment in Lusignan. We thank Soukaïnatou Aidara, Eléonore Crunchant and Frédéric Jean for help in biochemical analyses, Marie-Paule Briand (Centre Commun ABGC, UMR Ecobio) for C/N analyses and Valérie Briand for help in documentation.
* Global change triggers rapid alterations in the composition and diversity of plant communities which may change ecosystem functioning. Do changes in community diversity also change traits persistently, that is does coexistence with numerous or functionally or phylogenetically distinct species trigger, in a given focal species, trait shifts that persist? * We studied the grass Dactylis glomerata. Dactylis was grown in experimental plots with different species compositions for 5 years, sampled, cloned and grown in a common garden. We studied amines, regulators integrating growth responses of organisms to their environment. * We found that the mean levels and variances of most amines depended on the diversity of the source community, notably the species richness and the phylogenetic and functional distinctness from Dactylis, unbiased by species identity or biomass shifts. * Synthesis. Our results suggest that different levels of ambient diversity can, within a few years, select for different genotypes which have different compositions of growth regulators. Our study also suggests that a plant species can evolve in response to the diversity or distinctness of the surrounding plant community. Evolutionary changes of plant phenotypes might mediate an impact of past biological diversity on present ecosystem functioning
DOI : 10.1111/1365-2745.12505