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Title

Defining the root endosphere and rhizosphere microbiomes from the World Olive Germplasm Collection

AuthorsFernández-González, Antonio José; Villadas, Pablo J.; Gómez-Lama Cabanás, Carmen ; Valverde-Corredor, Antonio ; Belaj, Angjelina; Mercado-Blanco, Jesús ; Fernández-López, Manuel
Issue Date31-Dec-2019
PublisherNature Publishing Group
CitationScientific Reports 9: 20423 (2019)
AbstractThe bacterial and fungal communities from the olive (Olea europaea L.) root systems have not yet been simultaneously studied. We show in this work that microbial communities from the olive root endosphere are less diverse than those from the rhizosphere. But more relevant was to unveil that olive belowground communities are mainly shaped by the genotype of the cultivar when growing under the same environmental, pedological and agronomic conditions. Furthermore, Actinophytocola, Streptomyces and Pseudonocardia are the most abundant bacterial genera in the olive root endosphere, Actinophytocola being the most prevalent genus by far. In contrast, Gp6, Gp4, Rhizobium and Sphingomonas are the main genera in the olive rhizosphere. Canalisporium, Aspergillus, Minimelanolocus and Macrophomina are the main fungal genera present in the olive root system. Interestingly enough, a large number of as yet unclassified fungal sequences (class level) were detected in the rhizosphere. From the belowground microbial profiles here reported, it can be concluded that the genus Actinophytocola may play an important role in olive adaptation to environmental stresses. Moreover, the huge unknown fungal diversity here uncovered suggests that fungi with important ecological function and biotechnological potential are yet to be identified.
Publisher version (URL)http://dx.doi.org/10.1038/s41598-019-56977-9
URIhttp://hdl.handle.net/10261/201307
DOI10.1038/s41598-019-56977-9
Identifiersdoi: 10.1038/s41598-019-56977-9
issn: 2045-2322
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