Vermicompost addition influences symbiotic fungi communities associated with leek cultivated in metal-rich soils - Université Toulouse III - Paul Sabatier - Toulouse INP Accéder directement au contenu
Article Dans Une Revue Environmental Science and Pollution Research Année : 2019

Vermicompost addition influences symbiotic fungi communities associated with leek cultivated in metal-rich soils

Résumé

In the context of urban agriculture, where soils are frequently contaminated with metal(loid)s (TM), we studied the influence of vermicompost amendments on symbiotic fungal communities associated with plants grown in two metal-rich soils. Leek (Allium porrum L.) plants were grown with or without vermicompost in two metal-rich soils characterized by either geogenic or anthropogenic TM sources, to assess the influence of pollutant origin on soil-plant transfer. Fungal communities associated with the leek roots were identified by high throughput Illumina MiSeq and TM contents were measured using mass spectrometry. Vermicompost addition led to a dramatic change in the fungal community with a loss of diversity in the two tested soils. This effect could partially explain the changes in metal transfer at the soil-AMF-plant interface.Our results suggest being careful while using composts when growing edibles in contaminated soils. More generally, this study highlights the need for further research in the field of fungal communities to refine practical recommendations to gardeners.
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Dates et versions

hal-03608702 , version 1 (15-03-2022)

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Antoine Pierart, Arthur Quymanh Maes, Camille Dumat, Nathalie Sejalon-Delmas. Vermicompost addition influences symbiotic fungi communities associated with leek cultivated in metal-rich soils. Environmental Science and Pollution Research, 2019, 26 (20), pp.20040-20051. ⟨10.1007/s11356-018-2803-7⟩. ⟨hal-03608702⟩
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