Foliar mycoendophytome of an endemic plant of the Mediterranean biome (Myrtus communis ) reveals the dominance of basidiomycete woody saprotrophs.

Autor:	Vaz ABM; Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Fonseca PLC; Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Silva FF; Graduate Program of Bioinformatics, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Quintanilha-Peixoto G; Graduate Program of Bioinformatics, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Sampedro I; Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, C.S.I.C., Granada, Spain., Siles JA; Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, C.S.I.C., Granada, Spain., Carmo A; Department of Genetics, Ecology, and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Kato RB; Graduate Program of Bioinformatics, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Azevedo V; Department of Genetics, Ecology, and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Badotti F; Department of Chemistry, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Ocampo JA; Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, C.S.I.C., Granada, Spain., Rosa CA; Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Góes-Neto A; Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
Jazyk:	angličtina
Zdroj:	PeerJ [PeerJ] 2020 Dec 03; Vol. 8, pp. e10487. Date of Electronic Publication: 2020 Dec 03 (Print Publication: 2020).
DOI:	10.7717/peerj.10487
Abstrakt:	The true myrtle, Myrtus communis , is a small perennial evergreen tree that occurs in Europe, Africa, and Asia with a circum-Mediterranean geographic distribution. Unfortunately, the Mediterranean Forests, where M. communis occurs, are critically endangered and are currently restricted to small fragmented areas in protected conservation units. In the present work, we performed, for the first time, a metabarcoding study on the spatial variation of fungal community structure in the foliar endophytome of this endemic plant of the Mediterranean biome, using bipartite network analysis as a model. The local bipartite network of Myrtus communis individuals and their foliar endophytic fungi is very low connected, with low nestedness, and moderately high specialization and modularity. Similar network patterns were also retrieved in both culture-dependent and amplicon metagenomics of foliar endophytes in distinct arboreal hosts in varied biomes. Furthermore, the majority of putative fungal endophytes species were basidiomycete woody saprotrophs of the orders Polyporales, Agaricales, and Hymenochaetales. Altogether, these findings suggest a possible adaptation of these wood-decaying fungi to cope with moisture limitation and spatial scarcity of their primary substrate (dead wood), which are totally consistent with the predictions of the viaphytism hypothesis that wood-decomposing fungi inhabit the internal leaf tissue of forest trees in order to enhance dispersal to substrates on the forest floor, by using leaves as vectors and as refugia, during periods of environmental stress. Competing Interests: Vasco Azevedo and Aristóteles Góes-Neto are Academic Editors for PeerJ. (© 2020 Vaz et al.)
Databáze:	MEDLINE
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