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Seasonal dynamics alter taxonomical and functional microbial profiles in Pampa biome soils under natural grasslands

Authors :
Anthony Diego Muller Barboza
Victor Satler Pylro
Rodrigo Josemar Seminot Jacques
Paulo Ivonir Gubiani
Fernando Luiz Ferreira de Quadros
Júlio Kuhn da Trindade
Eric W. Triplett
Luiz Roesch
Source :
PeerJ, Vol 6, p e4991 (2018)
Publication Year :
2018
Publisher :
PeerJ Inc., 2018.

Abstract

Soil microbial communities’ assembly is strongly tied to changes in temperature and moisture. Although microbial functional redundancy seems to overcome taxonomical composition changes, the sensitivity and resilience of soil microbial communities from subtropical regions in response to seasonal variations are still poorly understood. Thus, the development of new strategies for biodiversity conservation and sustainable management require a complete understanding of the soil abiotic process involved in the selection of microbial taxa and functions. In this work, we used state of the art molecular methodologies (Next Generation Sequencing) to compare the taxonomic (metataxonomics) and functional (metatranscriptomics) profiles among soil samples from two subtropical natural grasslands located in the Pampa biome, Brazil, in response to short-term seasonal variations. Our data suggest that grasslands maintained a stable microbial community membership along the year with oscillation in abundance. Apparently soil microbial taxa are more susceptible to natural climatic disturbances while functions are more stable and change with less intensity along the year. Finally, our data allow us to conclude that the most abundant microbial groups and functions were shared between seasons and locations reflecting the existence of a stable taxonomical and functional core microbiota.

Details

Language :
English
ISSN :
21678359
Volume :
6
Database :
Directory of Open Access Journals
Journal :
PeerJ
Publication Type :
Academic Journal
Accession number :
edsdoj.8df786b876cb48bfaae449ffc30640a6
Document Type :
article
Full Text :
https://doi.org/10.7717/peerj.4991