Into the wild blueberry ( Vaccinium angustifolium ) rhizosphere microbiota - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Environmental Microbiology Année : 2020

Into the wild blueberry ( Vaccinium angustifolium ) rhizosphere microbiota

Résumé

The ability of wild blueberries to adapt to their harsh environment is believed to be closely related to their symbiosis with ericoid mycorrhizal fungi, which produce enzymes capable of organic matter mineralization. Although some of these fungi have been identified and characterized, we still know little about the microbial ecology of wild blueberry. Our study aims to characterize the fungal and bacterial rhizosphere communities of Vaccinium angustifolium (the main species encountered in wild blueberry fields). Our results clearly show that the fungal order Helotiales was the most abundant taxon associated with V. angustifolium. Helotiales contains most of the known ericoid mycorrhizal fungi which are expected to dominate in such a biotope. Furthermore, we found the dominant bacterial order was the nitrogen-fixing Rhizobiales. The Bradyrhizobium genus, whose members are known to form nodules with legumes, was among the 10 most abundant genera in the bacterial communities. In addition, Bradyrhizobium and Roseiarcus sequences significantly correlated with higher leaf-nitrogen content. Overall, our data documented fungal and bacterial community structure differences in three wild blueberry production fields.

Domaines

Chimie
Fichier non déposé

Dates et versions

hal-02955089 , version 1 (01-10-2020)

Identifiants

Citer

Simon Morvan, Hacène Meglouli, Anissa Lounès‐hadj Sahraoui, Mohamed Hijri. Into the wild blueberry ( Vaccinium angustifolium ) rhizosphere microbiota. Environmental Microbiology, 2020, 22 (9), pp.3803-3822. ⟨10.1111/1462-2920.15151⟩. ⟨hal-02955089⟩
30 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More