Seasonal soil microbial responses are limited to changes in functionality at two Alpine forest sites differing in altitude and vegetation

Scientific Reports
José A Siles, Rosa Margesin

Abstract

The study of soil microbial responses to environmental changes is useful to improve simulation models and mitigation strategies for climate change. We here investigated two Alpine forest sites (deciduous forest vs. coniferous forest) situated at different altitudes (altitudinal effect) in spring and autumn (seasonal effect) regarding: (i) bacterial and fungal abundances (qPCR); (ii) diversity and structure of bacterial and fungal communities (amplicon sequencing); and (iii) diversity and composition of microbial functional gene community (Geochip 5.0). Significant altitudinal changes were detected in microbial abundances as well as in diversity and composition of taxonomic and functional communities as a consequence of the differences in pH, soil organic matter (SOM) and nutrient contents and soil temperatures measured between both sites. A network analysis revealed that deciduous forest site (at lower altitude) presented a lower resistance to environmental changes than that of coniferous forest site (at higher altitude). Significant seasonal effects were detected only for the diversity (higher values in autumn) and composition of microbial functional gene community, which was related to the non-significant increased SOM and nu...Continue Reading

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Citations

Jul 17, 2018·Genome Biology and Evolution·Darren J ParkerMichael G Ritchie
May 18, 2020·Environmental Science and Pollution Research International·Zografina MavriouSpyridon Ntougias
Jul 25, 2019·Frontiers in Microbiology·Amélie DukundeRolf Daniel
Dec 12, 2020·International Journal of Environmental Research and Public Health·Hai HuangYuxiu Zhang

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Datasets Mentioned

BETA
PRJNA378480

Methods Mentioned

BETA
amplicon sequencing
whole genome shotgun
PCR

Software Mentioned

Geochip
MR DNA
USEARCH
PERMANOVA
Phython script
Mothur
UCHIME

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