Protist species richness and soil microbiome complexity increase towards climax vegetation in the Brazilian Cerrado.

Autor: de Araujo ASF; Agricultural Science Center, Federal University of Piauí, 64049-550, Teresina, PI, Brazil. asfaruaj@yahoo.com.br., Mendes LW; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture CENA, University of Sao Paulo USP, 13416-000, Piracicaba, SP, Brazil., Lemos LN; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture CENA, University of Sao Paulo USP, 13416-000, Piracicaba, SP, Brazil., Antunes JEL; Agricultural Science Center, Federal University of Piauí, 64049-550, Teresina, PI, Brazil., Beserra JEA Jr; Agricultural Science Center, Federal University of Piauí, 64049-550, Teresina, PI, Brazil., de Lyra MDCCP; Genome Laboratory Agronomic Institute of Pernambuco, 50761-000, Recife, PE, Brazil., Figueiredo MDVB; Genome Laboratory Agronomic Institute of Pernambuco, 50761-000, Recife, PE, Brazil., Lopes ÂCA; Agricultural Science Center, Federal University of Piauí, 64049-550, Teresina, PI, Brazil., Gomes RLF; Agricultural Science Center, Federal University of Piauí, 64049-550, Teresina, PI, Brazil., Bezerra WM; Laboratory of Microbial Ecology and Biotechnology, Lembiotech, Federal University of Ceara, 60020-181, Fortaleza, CE, Brazil., Melo VMM; Laboratory of Microbial Ecology and Biotechnology, Lembiotech, Federal University of Ceara, 60020-181, Fortaleza, CE, Brazil., de Araujo FF; Universidade do Oeste Paulista, 19050-920, Presidente Prudente, SP, Brazil., Geisen S; Department of Terrestrial Ecology, Netherlands Institute of Ecology NIOO-KNAW, 6708 PB, Wageningen, The Netherlands. s.geisen@nioo.knaw.nl.
Jazyk: angličtina
Zdroj: Communications biology [Commun Biol] 2018 Sep 06; Vol. 1, pp. 135. Date of Electronic Publication: 2018 Sep 06 (Print Publication: 2018).
DOI: 10.1038/s42003-018-0129-0
Abstrakt: Biodiversity underlies ecosystem functioning. While aboveground biodiversity is often well studied, the belowground microbiome, in particular protists, remains largely unknown. Indeed, holistic insights into soil microbiome structures in natural soils, especially in hyperdiverse biomes such as the Brazilian Cerrado, remain unexplored. Here, we study the soil microbiome across four major vegetation zones of the Cerrado, ranging from grass-dominated to tree-dominated vegetation with a focus on protists. We show that protist taxon richness increases towards the tree-dominated climax vegetation. Early successional habitats consisting of primary grass vegetation host most potential plant pathogens and least animal parasites. Using network analyses combining protist with prokaryotic and fungal sequences, we show that microbiome complexity increases towards climax vegetation. Together, this suggests that protists are key microbiome components and that vegetation succession towards climax vegetation is stimulated by higher loads of animal and plant pathogens. At the same time, an increase in microbiome complexity towards climax vegetation might enhance system stability.
Competing Interests: All authors declare no conflicts of interest.
Databáze: MEDLINE
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