The effects of fire severity on ectomycorrhizal colonization and morphometric features in Pinus pinaster Ait. seedlings

Détails

ID Serval
serval:BIB_4CA9B1C7B53B
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The effects of fire severity on ectomycorrhizal colonization and morphometric features in Pinus pinaster Ait. seedlings
Périodique
Forest Systems
Auteur(s)
Vasquez-Gassibe P., Oria-de-Rueda J.A., Santos-del-Blanco L., Martin-Pinto P.
ISSN
2171-9845
ISSN-L
2171-5068
Statut éditorial
Publié
Date de publication
2016
Volume
25
Numéro
1
Pages
e050
Langue
anglais
Résumé
Aim of the study: Mycorrhizal fungi in Mediterranean forests play a key role in the complex process of recovery after wildfires. A broader understanding of an important pyrophytic species as Pinus pinaster and its fungal symbionts is thus necessary for forest restoration purposes. This study aims to assess the effects of ectomycorrhizal symbiosis on maritime pine seedlings and how fire severity affects fungal colonization ability.
Area of study: Central Spain, in a Mediterranean region typically affected by wildfires dominated by Pinus pinaster, a species adapted to fire disturbance.
Material and Methods: We studied P. pinaster root apexes from seedlings grown in soils collected one year after fire in undisturbed sites, sites moderately affected by fire and sites highly affected by fire. Natural ectomycorrhization was observed at the whole root system level as well as at two root vertical sections (0-10 cm and 10-20 cm). We also measured several morphometric traits ( tap root length, shoot length, dry biomass of shoots and root/shoot ratio), which were used to test the influence of fire severity and soil chemistry upon them.
Main results: Ectomycorrhizal colonization in undisturbed soils for total and separated root vertical sections was higher than in soils that had been affected by fire to some degree. Inversely, seedling vegetative size increased according to fire severity.
Research highlights: Fire severity affected soil properties and mycorrhizal colonization one year after occurrence, thus affecting plant development. These findings can contribute to a better knowledge of the factors mediating successful establishment of P. pinaster in Mediterranean forests after wildfires.
Mots-clé
Wildfire, mycorrhizal fungi, Maritime pine, bioassay
Web of science
Open Access
Oui
Création de la notice
13/05/2016 7:49
Dernière modification de la notice
20/08/2019 14:01
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