Conservation tillage and organic farming induce minor variations in Pseudomonas abundance, their antimicrobial function and soil disease resistance

Dennert, Francesca; Imperiali, Nicola; Staub, Cornelia; Schneider, Jana; Laessle, Titouan; Zhang, Tao; Wittwer, Raphaël; van der Heijden, Marcel G A; Smits, Theo H M; Schlaeppi, Klaus; Keel, Christoph; Maurhofer, Monika

doi:10.21256/zhaw-3904

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-3904

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Conservation tillage and organic farming induce minor variations in Pseudomonas abundance, their antimicrobial function and soil disease resistance
Authors:	Dennert, Francesca Imperiali, Nicola Staub, Cornelia Schneider, Jana Laessle, Titouan Zhang, Tao Wittwer, Raphaël van der Heijden, Marcel G A Smits, Theo H M Schlaeppi, Klaus Keel, Christoph Maurhofer, Monika
DOI:	10.21256/zhaw-3904 10.1093/femsec/fiy075
Published in:	FEMS Microbiology Ecology
Volume(Issue):	94
Issue:	8
Page(s):	fiy075
Issue Date:	25-Apr-2018
Publisher / Ed. Institution:	Oxford University Press
ISSN:	1574-6941
Language:	English
Subjects:	Pythium ultimum; Gaeumannomyces tritici; Phenazines; 2,4-diacetylphloroglucinol; Cropping system; Pyrrolnitrin; FAST
Subject (DDC):	570: Biology 577: Ecology
Abstract:	Conservation tillage and organic farming are strategies used worldwide to preserve the stability and fertility of soils. While positive effects on soil structure have been extensively reported, the effects on specific root- and soil-associated microorganisms are less known. The aim of this study was to investigate how conservation tillage and organic farming influence the frequency and activity of plant-beneficial pseudomonads. Amplicon sequencing using the 16S rRNA gene revealed that Pseudomonas is among the most abundant bacterial taxa in the root microbiome of field-grown wheat, independent of agronomical practices. However, pseudomonads carrying genes required for the biosynthesis of specific antimicrobial compounds were enriched in samples from conventionally farmed plots without tillage. In contrast, disease resistance tests indicated that soil from conventional no tillage plots is less resistant to the soilborne pathogen Pythium ultimum compared to soil from organic reduced tillage plots, which exhibited the highest resistance of all compared cropping systems. Reporter strain-based gene expression assays did not reveal any differences in Pseudomonas antimicrobial gene expression between soils from different cropping systems. Our results suggest that plant-beneficial pseudomonads can be favoured by certain soil cropping systems, but soil resistance against plant diseases is likely determined by a multitude of biotic factors in addition to Pseudomonas.
Further description:	Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)
URI:	https://digitalcollection.zhaw.ch/handle/11475/8545
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Restricted until:	2021-08-01
Departement:	Life Sciences and Facility Management
Organisational Unit:	Institute of Natural Resource Sciences (IUNR)
Published as part of the ZHAW project:	Vergleichende Genomik zur Abklärung der Insektenpathogenizität in Pflanzenassoziierte Pseudomonaden
Appears in collections:	Publikationen Life Sciences und Facility Management

Files in This Item:

File	Description	Size	Format
61_DennertFEMSMicrobiolEcol2018 with suppl mat.pdf		2.88 MB	Adobe PDF	View/Open

Show full item record

Dennert, F., Imperiali, N., Staub, C., Schneider, J., Laessle, T., Zhang, T., Wittwer, R., van der Heijden, M. G. A., Smits, T. H. M., Schlaeppi, K., Keel, C., & Maurhofer, M. (2018). Conservation tillage and organic farming induce minor variations in Pseudomonas abundance, their antimicrobial function and soil disease resistance. FEMS Microbiology Ecology, 94(8), fiy075. https://doi.org/10.21256/zhaw-3904

Dennert, F. et al. (2018) ‘Conservation tillage and organic farming induce minor variations in Pseudomonas abundance, their antimicrobial function and soil disease resistance’, FEMS Microbiology Ecology, 94(8), p. fiy075. Available at: https://doi.org/10.21256/zhaw-3904.

F. Dennert et al., “Conservation tillage and organic farming induce minor variations in Pseudomonas abundance, their antimicrobial function and soil disease resistance,” FEMS Microbiology Ecology, vol. 94, no. 8, p. fiy075, Apr. 2018, doi: 10.21256/zhaw-3904.

DENNERT, Francesca, Nicola IMPERIALI, Cornelia STAUB, Jana SCHNEIDER, Titouan LAESSLE, Tao ZHANG, Raphaël WITTWER, Marcel G A VAN DER HEIJDEN, Theo H M SMITS, Klaus SCHLAEPPI, Christoph KEEL und Monika MAURHOFER, 2018. Conservation tillage and organic farming induce minor variations in Pseudomonas abundance, their antimicrobial function and soil disease resistance. FEMS Microbiology Ecology. 25 April 2018. Bd. 94, Nr. 8, S. fiy075. DOI 10.21256/zhaw-3904

Dennert, Francesca, Nicola Imperiali, Cornelia Staub, Jana Schneider, Titouan Laessle, Tao Zhang, Raphaël Wittwer, et al. 2018. “Conservation Tillage and Organic Farming Induce Minor Variations in Pseudomonas Abundance, Their Antimicrobial Function and Soil Disease Resistance.” FEMS Microbiology Ecology 94 (8): fiy075. https://doi.org/10.21256/zhaw-3904.

Dennert, Francesca, et al. “Conservation Tillage and Organic Farming Induce Minor Variations in Pseudomonas Abundance, Their Antimicrobial Function and Soil Disease Resistance.” FEMS Microbiology Ecology, vol. 94, no. 8, Apr. 2018, p. fiy075, https://doi.org/10.21256/zhaw-3904.