Partial overlap of fungal communities associated with nettle and poplar roots when co-occurring at a trace metal contaminated site - Archive ouverte HAL Access content directly
Journal Articles Science of the Total Environment Year : 2021

Partial overlap of fungal communities associated with nettle and poplar roots when co-occurring at a trace metal contaminated site

Benoit Valot

Abstract

Stinging nettle (Urtica dioica L.) raises growing interest in phytomanagement because it commonly grows under poplar Short Rotation Coppices (SRC) set up at trace-metal (TM) contaminated sites and provides high-quality herbaceous fibres. The mycobiome of this non-mycorhizal plant and its capacity to adapt to TM-contaminated environments remains unknown. This study aimed at characterizing the mycobiome associated with nettle and poplar roots co-occurring at a TM-contaminated site. Plant root barcoding using the fungi-specific ITS1F-ITS2 primers and Illumina MiSeq technology revealed that nettle and poplar had distinct root fungal communities. The nettle mycobiome was dominated by Pezizomycetes from known endophytic taxa and from the supposedly saprotrophic genus Kotlabaea (which was the most abundant). Several ectomycorrhizal fungi such as Inocybe (Agaricomycetes) and Tuber (Pezizomycetes) species were associated with the poplar roots. Most of the Pezizomycetes taxa were present in the highly TM-contaminated area whereas Agaricomycetes tended to be reduced. Despite being a known non-mycorrhizal plant, nettle was associated with a significant proportion of ectomycorrhizal OTU (9.7%), suggesting some connexions between the poplar and the nettle root mycobiomes. Finally, our study raised the interest in reconsidering the fungal networking beyond known mycorrhizal interactions.
Fichier principal
Vignette du fichier
Yung 2020_STOTEN_Revised_marked_HAL version.pdf (1.56 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-03192784 , version 1 (05-01-2022)

Licence

Identifiers

Cite

Loïc Yung, Coralie Bertheau, Flavien Tafforeau, Cyril Zappelini, Benoit Valot, et al.. Partial overlap of fungal communities associated with nettle and poplar roots when co-occurring at a trace metal contaminated site. Science of the Total Environment, 2021, 782, ⟨10.1016/j.scitotenv.2021.146692⟩. ⟨hal-03192784⟩
137 View
140 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More