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Interaction of Acaena elongata L. with Arbuscular Mycorrhizal Fungi under Phosphorus Limitation Conditions in a Temperate Forest

V醶quez-Santos, Yasmin ; Mart韓ez-Orea, Yuriana ; 羖varez-S醤chez, Javier ; Monta駉, No Manuel ; Luc韆 Camargo-Ricalde, Sara ; Castillo-Arg黣ro, Silvia

Phyton (Buenos Aires), 2021, Vol.90 (2), p.605-619

Buenos Aires: Tech Science Press

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  • Título:
    Interaction of Acaena elongata L. with Arbuscular Mycorrhizal Fungi under Phosphorus Limitation Conditions in a Temperate Forest
  • Autor: V醶quez-Santos, Yasmin ; Mart韓ez-Orea, Yuriana ; 羖varez-S醤chez, Javier ; Monta駉, No Manuel ; Luc韆 Camargo-Ricalde, Sara ; Castillo-Arg黣ro, Silvia
  • Assuntos: Acaena elongata ; Arbuscular mycorrhizas ; Availability ; Colonization ; Dependence ; Elongation ; Forestry research ; Fungi ; Leaf area ; Phosphorus ; Plant species ; Plant tissues ; Soils ; Temperate forests
  • É parte de: Phyton (Buenos Aires), 2021, Vol.90 (2), p.605-619
  • Descrição: The aim of this study was to analyze the performance of Acaena elongata colonized by arbuscular mycorrhizal fungi (AMF) to different phosphorus (P) concentrations, as a measure of AMF dependency. A. elongata, is a species from soils where P availability is limited, such as temperate forests. Our research questions were: 1) How do different P concentrations affect the AMF association in Acaena elongata, and 2) How does the AMF association influence A. elongata’s growth under different P concentrations? A. elongata’s growth, P content in plant tissue, AMF colonization and dependency were measured under four P concentrations: control (0 g P kg−1), low (0.05 g P kg−1), intermediate (0.2 g P kg−1) and high (2 g P kg−1) in different harvests. A complete randomized block design was applied. A. elongata’s growth was higher under -AMF in intermediate and high P concentrations, and the lowest growth corresponded to +AMF in the low and intermediate P concentration. We observed a negative effect on the root biomass under +AMF in intermediate P concentration, while the P concentration had a positive effect on the leaf area ratio. The AMF colonization in A. elongata decreased in the highest P concentration and it was favored under intermediate P concentration; while the low and the high concentrations generated a cost-benefit imbalance. Our results suggest that the performance of some plant species in soils with low P availability may not be favored by their association with AMF, but a synergy between AMF and intermediate P concentrations might drive A. elongata’s growth.
  • Editor: Buenos Aires: Tech Science Press
  • Idioma: Inglês;Francês;Alemão;Italiano;Português;Espanhol
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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