RT info:eu-repo/semantics/article T1 Relationships between rhizosphere microbiota and forest health conditions in Pinus pinaster stands at the Iberian Peninsula A1 Morales Rodríguez, Carmen A1 Martín García, Jorge A1 Ruiz Gómez, Francisco J A1 Poveda Arias, Jorge A1 Díez Casero, Julio Javier K1 Gestión forestal K1 Maritime pine K1 Forest decline K1 Umbelopsis K1 Pino marítimo K1 Disminución del bosque K1 3106 Ciencia Forestal AB Maritime pine (Pinus pinaster) is a Mediterranean forest tree species of great ecological importance within the European Union and the Iberian Peninsula in particular, whose presence is seriously threatened by forest decline. Knowledge of the diversity, abundance, and functionality of rhizospheric microorganisms can provide important information in the design of new strategies for sustainable forest management against forest decline. In this work, rhizospheric samples were collected from representative pine forests in the region of Castilla y León (North-western Spain) (in 10 municipalities of 5 different provinces), analyzing different physicochemical parameters and bacterial and fungal biodiversity (by metabarcoding). In addition, different variables of tree health and climatic conditions were analyzed. The main phylum of microorganisms found in the rhizosphere of P. pinaster were the Ascomycota (54.5 %) and Acidobacteria (16.4 %) in fungi and bacteria, respectively. A clear relationship was found between the presence/absence of certain bacterial and fungal groups (taxonomic and functional) and the presence/absence of healthy/sick trees. Specifically, the fungal genus Umbelopsis and the bacterial genus Paenibacillus were thought as possible control agents of decline, as their presence was related to the absence of disease. Understanding the relationships between rhizosphere microbiota and forest health parameters in Pinus pinaster can be only achieved by exploring the complex ‘ecosystem microbiome’ and its functioning using focused, integrative microbiological and ecological research performed across multiple habitats. PB Elsevier SN 0929-1393 YR 2024 FD 2024 LK https://uvadoc.uva.es/handle/10324/62578 UL https://uvadoc.uva.es/handle/10324/62578 LA eng NO Applied Soil Ecology, 2024, vol. 193, 105142 NO Producción Científica DS UVaDOC RD 20-may-2024