Universität zu Köln

Dumack, Kenneth, Feng, Kai, Flues, Sebastian, Sapp, Melanie, Schreiter, Susanne, Grosch, Rita ORCID: 0000-0002-7179-5715, Rose, Laura E., Deng, Ye, Smalla, Kornelia and Bonkowski, Michael (2022). What Drives the Assembly of Plant-associated Protist Microbiomes? Investigating the Effects of Crop Species, Soil Type and Bacterial Microbiomes. Protist, 173 (6). MUNICH: ELSEVIER GMBH. ISSN 1618-0941

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Abstract

In a field experiment we investigated the influence of the environmental filters soil type (i.e. three con-trasting soils) and plant species (i.e. lettuce and potato) identity on rhizosphere community assembly of Cercozoa, a dominant group of mostly bacterivorous soil protists. Plant species (14%) and rhizo-sphere origin (vs bulk soil) with 13%, together explained four times more variation in cercozoan beta diversity than the three soil types (7% explained variation). Our results clearly confirm the existence of plant species-specific protist communities. Network analyses of bacteria-Cercozoa rhizosphere com-munities identified scale-free small world topologies, indicating mechanisms of self-organization. While the assembly of rhizosphere bacterial communities is bottom-up controlled through the resource supply from root (secondary) metabolites, our results support the hypothesis that the net effect may depend on the strength of top-down control by protist grazers. Since grazing of protists has a strong impact on the composition and functioning of bacteria communities, protists expand the repertoire of plant genes by functional traits, and should be considered as 'protist microbiomes' in analogy to 'bacterial microbiomes'.(c) 2022 The Authors. Published by Elsevier GmbH. This is an open access article under the CC BY-NC -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Dumack, Kenneth UNSPECIFIED UNSPECIFIED UNSPECIFIED Feng, Kai UNSPECIFIED UNSPECIFIED UNSPECIFIED Flues, Sebastian UNSPECIFIED UNSPECIFIED UNSPECIFIED Sapp, Melanie UNSPECIFIED UNSPECIFIED UNSPECIFIED Schreiter, Susanne UNSPECIFIED UNSPECIFIED UNSPECIFIED Grosch, Rita UNSPECIFIED orcid.org/0000-0002-7179-5715 UNSPECIFIED Rose, Laura E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Deng, Ye UNSPECIFIED UNSPECIFIED UNSPECIFIED Smalla, Kornelia UNSPECIFIED UNSPECIFIED UNSPECIFIED Bonkowski, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-688911
DOI:	10.1016/j.protis.2022.125913
Journal or Publication Title:	Protist
Volume:	173
Number:	6
Date:	2022
Publisher:	ELSEVIER GMBH
Place of Publication:	MUNICH
ISSN:	1618-0941
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ARBUSCULAR MYCORRHIZAL FUNGI; RHIZOSPHERE MICROBIOME; COMMUNITY COMPOSITION; PROTOZOA STIMULATE; GROWTH; 2,4-DIACETYLPHLOROGLUCINOL; AMEBAS; DIVERSITY; NITROGEN; NETWORKS Multiple languages Microbiology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68891