Arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from Patagonian wetlands

Arbuscular mycorrhizal and dark septate fungi are common plant symbionts, but their role in promoting host plant fitness depends on environmental variables. Particularly in wetland plants, these associations are less understood. We analysed the role of arbuscular mycorrhizal fungi (AMF) and dark se...

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Autores principales: Cuassolo, Florencia, Diaz-Villanueva, Verónica
Formato: Articulo article acceptedVersion
Lenguaje:Inglés
Publicado: Ecological Society of Australia 2023
Materias:
Arbuscular mycorrhizal
Dark septate fungi
Invasive plant
Patagonian wetlands
Potentilla anserina
Soil nutrients
Ciencias de la Tierra y Medio Ambiente
Acceso en línea:http://rdi.uncoma.edu.ar/handle/uncomaid/17446
Aporte de:
Repositorio Institucional UNCo de Universidad Nacional del Comahue
id I22-R178-uncomaid-17446
record_format dspace
spelling I22-R178-uncomaid-174462023-10-12T10:30:43Z Arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from Patagonian wetlands Cuassolo, Florencia Diaz-Villanueva, Verónica Arbuscular mycorrhizal Dark septate fungi Invasive plant Patagonian wetlands Potentilla anserina Soil nutrients Ciencias de la Tierra y Medio Ambiente Arbuscular mycorrhizal and dark septate fungi are common plant symbionts, but their role in promoting host plant fitness depends on environmental variables. Particularly in wetland plants, these associations are less understood. We analysed the role of arbuscular mycorrhizal fungi (AMF) and dark septate fungi (DSF) in the roots of Potentilla anserina (Rosaceae), an invasive species of Patagonia, widely distributed in wetlands. We tested three hypotheses: that fungi colonization varies according to soil moisture and nutrient content (nitrogen and phosphorus), that they enhance P. anserina nutrient content, and benefit plant growth. We measured the percentage of colonization in plants from five wetlands across a moisture gradient with different nutrient content, and performed a growth experiment with soil from these wetlands to evaluate changes in mycorrhizal and endophytic fungal colonization, aerial nutrient content and biomass production. In the field, root colonization by AMF was high in all sites (~90%), whereas DSF was less abundant (~20%), positively related to soil organic matter, and negatively related to soil phosphorus. In the experiment, DSF colonization was inversely related to increasing tissue N and P content. Potentilla anserina grew similarly in all the treatments, but biomass was positively related to DSF colonization. Our results provide evidence that DSF, rather than AMF, confer to this invasive species the ability to grow in soils with different water and nutrient content and may help to explain the wide distribution of this alien species in Patagonian wetlands. Fil: Cuassolo, Florencia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Cuassolo, Florencia. Instituto de Investigaciones en Biodiversidad y Medio Ambiente. Laboratorio de Limnología; Argentina. Fil: Cuassolo, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Diaz-Villanueva, Verónica. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. Fil: Diaz-Villanueva, Verónica. Instituto de Investigaciones en Biodiversidad y Medio Ambiente. Laboratorio de Limnología; Argentina. Fil: Diaz-Villanueva, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 2023-09 2023-10-10T13:29:24Z 2023-10-10T13:29:24Z Articulo article acceptedVersion 1442-9993 http://rdi.uncoma.edu.ar/handle/uncomaid/17446 eng DOI: 10.1111/aec.13438 Atribución-NoComercial-CompartirIgual 2.5 Argentina https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ application/pdf pp. 1-18 application/pdf Ecological Society of Australia Austral Ecology. (2023)
institution Universidad Nacional del Comahue
institution_str I-22
repository_str R-178
collection Repositorio Institucional UNCo
language Inglés
topic Arbuscular mycorrhizal
Dark septate fungi
Invasive plant
Patagonian wetlands
Potentilla anserina
Soil nutrients
Ciencias de la Tierra y Medio Ambiente
spellingShingle Arbuscular mycorrhizal
Dark septate fungi
Invasive plant
Patagonian wetlands
Potentilla anserina
Soil nutrients
Ciencias de la Tierra y Medio Ambiente
Cuassolo, Florencia
Diaz-Villanueva, Verónica
Arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from Patagonian wetlands
topic_facet Arbuscular mycorrhizal
Dark septate fungi
Invasive plant
Patagonian wetlands
Potentilla anserina
Soil nutrients
Ciencias de la Tierra y Medio Ambiente
description Arbuscular mycorrhizal and dark septate fungi are common plant symbionts, but their role in promoting host plant fitness depends on environmental variables. Particularly in wetland plants, these associations are less understood. We analysed the role of arbuscular mycorrhizal fungi (AMF) and dark septate fungi (DSF) in the roots of Potentilla anserina (Rosaceae), an invasive species of Patagonia, widely distributed in wetlands. We tested three hypotheses: that fungi colonization varies according to soil moisture and nutrient content (nitrogen and phosphorus), that they enhance P. anserina nutrient content, and benefit plant growth. We measured the percentage of colonization in plants from five wetlands across a moisture gradient with different nutrient content, and performed a growth experiment with soil from these wetlands to evaluate changes in mycorrhizal and endophytic fungal colonization, aerial nutrient content and biomass production. In the field, root colonization by AMF was high in all sites (~90%), whereas DSF was less abundant (~20%), positively related to soil organic matter, and negatively related to soil phosphorus. In the experiment, DSF colonization was inversely related to increasing tissue N and P content. Potentilla anserina grew similarly in all the treatments, but biomass was positively related to DSF colonization. Our results provide evidence that DSF, rather than AMF, confer to this invasive species the ability to grow in soils with different water and nutrient content and may help to explain the wide distribution of this alien species in Patagonian wetlands.
format Articulo
article
acceptedVersion
author Cuassolo, Florencia
Diaz-Villanueva, Verónica
author_facet Cuassolo, Florencia
Diaz-Villanueva, Verónica
author_sort Cuassolo, Florencia
title Arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from Patagonian wetlands
title_short Arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from Patagonian wetlands
title_full Arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from Patagonian wetlands
title_fullStr Arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from Patagonian wetlands
title_full_unstemmed Arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from Patagonian wetlands
title_sort arbuscular mycorrhizal and dark septate fungi colonization in an invasive plant from patagonian wetlands
publisher Ecological Society of Australia
publishDate 2023
url http://rdi.uncoma.edu.ar/handle/uncomaid/17446
work_keys_str_mv AT cuassoloflorencia arbuscularmycorrhizalanddarkseptatefungicolonizationinaninvasiveplantfrompatagonianwetlands
AT diazvillanuevaveronica arbuscularmycorrhizalanddarkseptatefungicolonizationinaninvasiveplantfrompatagonianwetlands
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