Plant growth drives soil nitrogen cycling and N-related microbial activity through changing root traits

Show full item record



Permalink

http://hdl.handle.net/10138/318241

Citation

Legay , N , Clément , J-C , Grassein , F , Lavorel , S , Lemauviel-Lavenant , S , Personeni , E , Poly , F , Pommier , T , Robson , T M , Mouhamadou , B & Binet , M-N 2020 , ' Plant growth drives soil nitrogen cycling and N-related microbial activity through changing root traits ' , Fungal Ecology , vol. 44 , no. April 2020 , 100910 . https://doi.org/10.1016/j.funeco.2019.100910

Title: Plant growth drives soil nitrogen cycling and N-related microbial activity through changing root traits
Author: Legay, Nicolas; Clément, Jean-Christophe; Grassein, Fabrice; Lavorel, Sandra; Lemauviel-Lavenant , S; Personeni, Eleanor; Poly, Frank; Pommier, T; Robson, Thomas Matthew; Mouhamadou , B; Binet, M-N
Contributor organization: Canopy Spectral Ecology and Ecophysiology
Viikki Plant Science Centre (ViPS)
Biosciences
Organismal and Evolutionary Biology Research Programme
Plant Biology
Date: 2020-04
Language: eng
Number of pages: 12
Belongs to series: Fungal Ecology
ISSN: 1878-0083
DOI: https://doi.org/10.1016/j.funeco.2019.100910
URI: http://hdl.handle.net/10138/318241
Abstract: Relationships between plants and nitrogen-related microbes may vary with plant growth. We investigated these dynamic relationships over three months by analyzing plant functional traits (PFT), arbuscular mycorrhizal fungal (AMF) colonization, potential N mineralization (PNM), potential nitrification (PNA) and denitrification activities (PDA) in Dactylis glomerata cultures. D. glomerata recruited AMF during early growth, and thereafter maintained a constant root colonization intensity. This may have permitted high enough plant nutrient acquisition over the three months as to offset reduced soil inorganic N. PFT changed with plant age and declining soil fertility, resulting in higher allocation to root biomass and higher root C:N ratio. Additional to root AMF presence, PR' changes may have favored denitrification over mineralization through changes in soil properties, particularly increasing the quality of the labile carbon soil fraction. Other PFT changes, such as N uptake, modified the plants' ability to compete with bacterial groups involved in N cycling. (C) 2020 Elsevier Ltd and British Mycological Society. All rights reserved.
Subject: ARBUSCULAR MYCORRHIZAL FUNGI
Arbuscular mycorrhizal fungi
BACTERIAL COMMUNITY
BIOMASS
DIVERSITY
DYNAMICS
Dactylis glomerata
Denitrification enzymatic activity
EXTRACTION METHOD
FUNCTIONAL TRAITS
GRASSLAND SOIL
Nitrification enzymatic activity
ORGANIC-CARBON
Plant functional traits
Plant-microbe interactions
Potential N mineralization
RAPID ASSESSMENT
1172 Environmental sciences
11831 Plant biology
Peer reviewed: Yes
Rights: unspecified
Usage restriction: openAccess
Self-archived version: acceptedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
Legay_et_al._20191213_Manuscript_Accepted.pdf 383.1Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record