Universität zu Köln

Yim, Bunlong, Ibrahim, Zeeshan, Rueger, Lioba, Ganther, Minh, Maccario, Lorrie, Sorensen, Soren J., Heintz-Buschart, Anna, Tarkka, Mika T., Vetterlein, Doris, Bonkowski, Michael, Blagodatskaya, Evgenia and Smalla, Kornelia (2022). Soil texture is a stronger driver of the maize rhizosphere microbiome and extracellular enzyme activities than soil depth or the presence of root hairs. Plant Soil, 478 (1-2). S. 229 - 252. DORDRECHT: SPRINGER. ISSN 1573-5036

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Abstract

Aims Different drivers are known to shape rhizosphere microbiome assembly. How soil texture (Texture) and presence or lack of root hairs (Root Hair) of plants affect the rhizosphere microbiome assembly and soil potential extracellular enzyme activities (EEA) at defined rooting depth (Depth) is still a knowledge gap. We investigated effects of these drivers on microbial assembly in rhizosphere and on potential EEA in root-affected soil of maize. Methods Samples were taken from three depths of root hair defective mutant rth3 and wild-type WT maize planted on loam and sand in soil columns after 22 days. Rhizosphere bacterial, archaeal, fungal and cercozoan communities were analysed by sequencing of 16S rRNA gene, ITS and 18S rRNA gene fragments. Soil potential EEA of ss-glucosidase, acid phosphatase and chitinase were estimated using fluorogenic substrates. Results The bacterial, archaeal and cercozoan alpha- and beta-diversities were significantly and strongly altered by Texture, followed by Depth and Root Hair. Texture and Depth had a small impact on fungal assembly, and only fungal beta-diversity was significantly affected. Significant impacts by Depth and Root Hair on beta-diversity and relative abundances at taxonomic levels of bacteria, archaea, fungi and cercozoa were dependent on Texture. Likewise, the patterns of potential EEA followed the trends of microbial communities, and the potential EEA correlated with the relative abundances of several taxa. Conclusions Texture was the strongest driver of rhizosphere microbiome and of soil potential EEA, followed by Depth and Root Hair, similarly to findings in maize root architecture and plant gene expression studies.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Yim, Bunlong UNSPECIFIED UNSPECIFIED UNSPECIFIED Ibrahim, Zeeshan UNSPECIFIED UNSPECIFIED UNSPECIFIED Rueger, Lioba UNSPECIFIED UNSPECIFIED UNSPECIFIED Ganther, Minh UNSPECIFIED UNSPECIFIED UNSPECIFIED Maccario, Lorrie UNSPECIFIED UNSPECIFIED UNSPECIFIED Sorensen, Soren J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Heintz-Buschart, Anna UNSPECIFIED UNSPECIFIED UNSPECIFIED Tarkka, Mika T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vetterlein, Doris UNSPECIFIED UNSPECIFIED UNSPECIFIED Bonkowski, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Blagodatskaya, Evgenia UNSPECIFIED UNSPECIFIED UNSPECIFIED Smalla, Kornelia UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-687392
DOI:	10.1007/s11104-022-05618-8
Journal or Publication Title:	Plant Soil
Volume:	478
Number:	1-2
Page Range:	S. 229 - 252
Date:	2022
Publisher:	SPRINGER
Place of Publication:	DORDRECHT
ISSN:	1573-5036
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BACTERIAL COMMUNITY COMPOSITION; PHOSPHORUS UPTAKE; PLANT; DIVERSITY; KINETICS; POPULATIONS; MICROORGANISMS; TEMPERATURE; SENSITIVITY; REDUNDANCY Multiple languages Agronomy; Plant Sciences; Soil Science Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68739