The composition of phyllosphere fungal assemblages of European beech (Fagus sylvatica) varies significantly along an elevation gradient

Autor: Xavier Capdevielle, Marie-Laure Desprez-Loustau, Cécile Robin, Tristan Cordier, Corinne Vacher, Olivier Fabreguettes
Přispěvatelé: Biodiversité, Gènes & Communautés (BioGeCo), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB), Forest Health Department of French Ministry of Agriculture [22000285], European project, Biodiversity And Climate Change, A Risk Analysis (BACCARA) [22000325], Genoscope project [42 AP09/10]
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: New Phytologist
New Phytologist, Wiley, 2012, 196 (2), pp.510-519. ⟨10.1111/j.1469-8137.2012.04284.x⟩
ISSN: 0028-646X
1469-8137
DOI: 10.1111/j.1469-8137.2012.04284.x⟩
Popis: International audience; Little is known about the potential effect of climate warming on phyllosphere fungi, despite their important impact on the dynamics and diversity of plant communities. The structure of phyllosphere fungal assemblages along elevation gradients may provide information about this potential effect, because elevation gradients correspond to temperature gradients over short geographic distances. We thus investigated variations in the composition of fungal assemblages inhabiting the phyllosphere of European beech (Fagus sylvatica) at four sites over a gradient of 1000 m of elevation in the French Pyrenees Mountains, by using tag-encoded 454 pyrosequencing. Our results show that the composition of fungal assemblages varied significantly between elevation sites, in terms of both the relative abundance and the presenceabsence of species, and that the variations in assemblage composition were well correlated with variations in the average temperatures. Our results therefore suggest that climate warming might alter both the incidence and the abundance of phyllosphere fungal species, including potential pathogens. For example, Mycosphaerella punctiformis, a causal agent of leaf spots, showed decreasing abundance with elevation and might therefore shift to higher elevations in response to warming.
Databáze: OpenAIRE