Differences in soil micro-eukaryotic communities over soil pH gradients are strongly driven by parasites and saprotrophs

Environmental Microbiology
A Ö C DupontD Bass

Abstract

A recent large-scale assessment of bacterial communities across a range of UK soil types showed that bacterial community structure was strongly determined by soil pH. We analysed a data set of eukaryotic 454 sequencing 18S rDNA from the surveyed samples and showed significant differences in eukaryotic assemblages according to pH class, mostly between low pH and higher pH soils. Soil eukaryote communities (per sample) differed most at the taxonomic rank approximating to order level. Taxonomies assigned with the Protist Ribosomal Reference and the Silva 119 databases were taxonomically inconsistent, mostly due to differing 18S annotations, although general structure and composition according to pH were coherent. A relatively small number of lineages, mostly putative parasitic protists and fungi, drive most differences between pH classes, with weaker contributions from bacterivores and autotrophs. Overall, soil parasites included a large diversity of alveolates, in particular apicomplexans. Phylogenetic analysis of alveolate lineages demonstrates a large diversity of unknown gregarines, novel perkinsids, coccidians, colpodellids and uncharacterized alveolates. Other novel and/or divergent lineages were revealed across the eukaryot...Continue Reading

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Citations

Feb 16, 2018·FEMS Microbiology Reviews·Stefan GeisenEnrique Lara
Aug 22, 2017·Nature Reviews. Microbiology·Noah Fierer
Apr 18, 2018·The ISME Journal·Angela M OliverioNoah Fierer
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Feb 28, 2019·Frontiers in Microbiology·Garvin SchulzValentyna Krashevska
Oct 3, 2018·Communications Biology·Ademir Sergio Ferreira de AraujoStefan Geisen
Aug 16, 2017·Nature Ecology & Evolution·Frédéric MahéMicah Dunthorn
Mar 22, 2021·Microbiome·Sai GuoStefan Geisen
Aug 7, 2021·Journal of Hazardous Materials·Rui XuWeimin Sun

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