Correlation of the Abundance of Betaproteobacteria on Mineral Surfaces with Mineral Weathering in Forest Soils

C. Lepleux (1, 2) , M. Turpault (2) , P. Oger (3, 4) , P. Frey-Klett (1) , Stephane Uroz (1, 2)

1 IAM - Interactions Arbres-Microorganismes
2 BEF - Unité de recherche Biogéochimie des Ecosystèmes Forestiers
3 LGL-TPE - Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement
4 L2CM - Laboratoire Lorrain de Chimie Moléculaire

Pyrosequencing-based analysis of 16S rRNA gene sequences revealed a significant correlation between apatite dissolution and the abundance of betaproteobacteria on apatite surfaces, suggesting a role for the bacteria belonging to this phylum in mineral weathering. Notably, the cultivation-dependent approach demonstrated that the most efficient mineral-weathering bacteria belonged to the betaproteobacterial genus Burhkolderia.

Domaines: Biodiversité et Ecologie

C. Lepleux, M. Turpault, P. Oger, P. Frey-Klett, Stephane Uroz. Correlation of the Abundance of Betaproteobacteria on Mineral Surfaces with Mineral Weathering in Forest Soils. Applied and Environmental Microbiology, 2012, 78 (19), pp. 7114-7119. ⟨10.1128/AEM.00996-12⟩. ⟨hal-02916134⟩