Tree Cover Species Modify the Diversity of Rhizosphere-Associated Microorganisms in <i>Nothofagus obliqua</i> (Mirb.) Oerst Temperate Forests in South-Central Chile

Simple item page
dc.contributor.authorAlmonacid-Munoz, Leonardo
dc.contributor.authorHerrera, Hector
dc.contributor.authorFuentes-Ramirez, Andres
dc.contributor.authorVargas-Gaete, Rodrigo
dc.contributor.authorLarama, Giovanni
dc.contributor.authorJara, Ronald
dc.contributor.authorFernandez-Urrutia, Camila
dc.contributor.authorda Silva Valadares, Rafael Borges
dc.date.accessioned2025-01-20T21:07:00Z
dc.date.available2025-01-20T21:07:00Z
dc.date.issued2022
dc.description.abstractChilean native forests have been subjected to several types of disturbances, with one of them being the replacement by exotic species. Pinus radiata D. Don is a widespread exotic tree that forms extensive plantations in southern Chile. It covers extended areas, affecting the landscape, biodiversity, and ecosystem services associated with native forest ecosystems. Although advances in assessing the impact of exotic plant species have been conducted, few studies have focused on the alteration of soil microorganisms. This study aimed to characterize the rhizosphere bacterial and fungal communities associated with the tree species Nothofagus obliqua inside a native forest stand and within a P. radiata plantation growing nearby. We used a 16S rRNA gene and ITS region metabarcoding approach. Using bioinformatics, diversity indices, relative abundance, preferential taxa, and predicted functions and guilds were estimated. The beta-diversity analysis showed that both factors, the type of soil (rhizosphere or bulk soil) and the type of site (native forest or P. radiata plantation), were significant, with the site explaining most of the variation among bacterial and fungal communities. Proteobacteria and Basidiomycota were the most abundant bacterial and fungal phyla in both types of soil and sites. Similarly, bacteria showed similar abundant taxa at the family level, independent of the soil type or the site. The main fungal taxa associated with native forests were Tricholomataceae and Cantharellales, whereas in P. radiata plantations, Russulaceae and Hyaloscyphaceae were the most abundant families. The main bacteria functional groups were chemoheterotrophy and aerobic chemoheterotrophy, without significant differences between the type of soil or sites. Overall, these results demonstrate that the composition and diversity of bacterial and fungal communities associated with native N. obliqua forest are influenced by the surrounding forest, and mainly depend on the site's characteristics, such as the lignin-rich wood source. These results improve our understanding of the impact of native forest replacement on soil microbial communities, which can alter microbial-related soil ecosystem services.
dc.fuente.origenWOS
dc.identifier.doi10.3390/f13050756
dc.identifier.eissn1999-4907
dc.identifier.urihttps://doi.org/10.3390/f13050756
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93386
dc.identifier.wosidWOS:000801835000001
dc.issue.numero5
dc.language.isoen
dc.revistaForests
dc.rightsacceso restringido
dc.subjectbacteria
dc.subjectfungi
dc.subjectnative forest
dc.subjectpine plantation
dc.subjectrhizosphere
dc.subjectsoil microbial communities
dc.subject.ods15 Life on Land
dc.subject.ods02 Zero Hunger
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa02 Hambre cero
dc.titleTree Cover Species Modify the Diversity of Rhizosphere-Associated Microorganisms in <i>Nothofagus obliqua</i> (Mirb.) Oerst Temperate Forests in South-Central Chile
dc.typeartículo
dc.volumen13
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas