nerc.ac.uk

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

Dupont, A.Ö.C.; Griffiths, R.I.; Bell, T.; Bass, D.. 2016 Differences in soil micro-eukaryotic communities over soil pH gradients are strongly driven by parasites and saprotrophs. Environmental Microbiology, 18 (6). 10.1111/1462-2920.13220

Before downloading, please read NORA policies.
[img]
Preview
Text
N512817PP.pdf - Accepted Version

Download (1MB) | Preview

Abstract/Summary

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 eukaryote tree of life. Our study provides an in-depth taxonomic evaluation of micro-eukaryotic diversity, and reveals novel lineages and insights into their relationships with environmental variables across soil gradients.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1111/1462-2920.13220
CEH Sections: Acreman
ISSN: 1462-2912
NORA Subject Terms: Agriculture and Soil Science
Date made live: 02 Feb 2016 15:36 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/512817

Actions (login required)

View Item View Item

Document Downloads

Downloads for past 30 days

Downloads per month over past year

More statistics for this item...