6533b82ffe1ef96bd1294805
RESEARCH PRODUCT
Effects of mowing on fungal endophytes and arbuscular mycorrhizal fungi in subalpine grasslands
Daniel WipfMarie-noëlle BinetLucile SageSandra LavorelBello MouhamadouRoberto A. GeremiaC. MalanDirk RedeckerJean-christophe Clémentsubject
0106 biological sciences[SDE.MCG]Environmental Sciences/Global ChangesArbuscular mycorrhizal fungiPlant ScienceAllium porrum010603 evolutionary biology01 natural sciencesEndophyteGrassland[ SDE ] Environmental SciencesVegetation dynamicsAGRICULTURAL MANAGEMENTBotanyFestuca paniculataDominance (ecology)EcosystemGrassland managementCARBOHYDRATE CONTENTEcology Evolution Behavior and SystematicsComputingMilieux_MISCELLANEOUSLOLIUM-PERENNE2. Zero hungerPLANT DIVERSITYFestuca paniculatageography[ SDE.BE ] Environmental Sciences/Biodiversity and Ecologygeography.geographical_feature_categoryEcologybiologyPRODUCTIVITYEcological ModelingNEOTYPHODIUMPlant communityEndophyte fungi04 agricultural and veterinary sciences15. Life on landbiology.organism_classificationNeotyphodiumSOIL[ SDE.MCG ] Environmental Sciences/Global ChangesFESCUE FESTUCA-ARUNDINACEAAgronomy13. Climate actionALKALOIDS[SDE]Environmental Sciences040103 agronomy & agricultureTALL FESCUE0401 agriculture forestry and fisheries[SDE.BE]Environmental Sciences/Biodiversity and Ecologydescription
International audience; In French subalpine grasslands, cessation of mowing promotes dominance of Festuca paniculata, which alters plant diversity and ecosystem functioning. One of the mechanisms underpinning such effects may be linked to simultaneous changes in the abundance of fungal symbionts such as endophytes and arbuscular mycorrhizal fungi. In field conditions, mowing reduced the abundance of the endophyte Neotyphodium sp. in leaves of F. paniculata by a factor of 6, and increased mycorrhizal densities by a factor of 15 in the soil. In greenhouse experiments, the mycorrhizal colonization of Trifolium pratense and Allium porrum increased 3- fold and 3.8- fold respectively in mown vs unmown grassland soil. Significantly reduced growth of the two host plants was also observed on soil from the unmown grassland. Such opposite effects of mowing on the two functional groups of fungal symbionts could suggest interactions between these two groups, which in turn could contribute to structuring plant communities in subalpine grasslands. (c) 2013 Elsevier Ltd and The British Mycological Society. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-08-01 |