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Tytuł:
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Endophytic bacterial communities of oilseed rape associate with genotype-specific resistance against Verticillium longisporum.
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Autorzy:
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Glaeser SP; Department of Applied Microbiology, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
Gabur I; Department of Plant Breeding, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
Haghighi H; Department of Applied Microbiology, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.; Department of Life Sciences, University of Modena and Reggio Emilia, Via Kenedy 17/I, 42124 Reggio Emilia, Italy.
Bartz JO; Department of Applied Microbiology, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
Kämpfer P; Department of Applied Microbiology, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
Snowdon R; Department of Plant Breeding, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
Obermeier C; Department of Plant Breeding, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
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Źródło:
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FEMS microbiology ecology [FEMS Microbiol Ecol] 2020 Jan 01; Vol. 96 (1).
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Typ publikacji:
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Journal Article; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Publication: 2015- : Oxford Oxford University Press
Original Publication: [Amsterdam] : Elsevier Science Publishers on behalf of the Federation of European Microbiological Societies, [1985-
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MeSH Terms:
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Microbiota*
Brassica napus/*genetics
Brassica napus/*microbiology
Disease Resistance/*genetics
Verticillium/*physiology
Bacteria/classification ; Bacteria/genetics ; Bacteria/isolation & purification ; Genotype ; Host Specificity ; Phylogeny ; Plant Diseases/genetics ; Plant Diseases/microbiology ; RNA, Ribosomal, 16S/genetics
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Contributed Indexing:
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Keywords: Brassica napus; Verticillium longisporum; 16S rRNA gene amplicon Illumina sequencing; disease resistance; endobiome
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Substance Nomenclature:
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0 (RNA, Ribosomal, 16S)
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Entry Date(s):
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Date Created: 20191127 Date Completed: 20200820 Latest Revision: 20200820
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Update Code:
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20240104
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DOI:
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10.1093/femsec/fiz188
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PMID:
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31769797
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Associations of endophytic bacterial community composition of oilseed rape (Brassica napus L.) with quantitative resistance against the soil-borne fungal pathogen Verticillium longisporum was assessed by 16S rRNA gene amplicon sequencing in roots and hypocotyls of four plant lines with contrasting genetic composition in regard to quantitative resistance reactions. The plant compartment was found to be the dominating driving factor for the specificity of bacterial communities in healthy plants. Furthermore, V. longisporum infection triggered a stabilization of phylogenetic group abundance in replicated samples suggesting a host genotype-specific selection. Genotype-specific associations with bacterial phylogenetic group abundance were identified by comparison of plant genotype groups (resistant versus susceptible) and treatment groups (healthy versus V. longisporum-infected) allowing dissection into constitutive and induced directional association patterns. Relative abundance of Flavobacteria, Pseudomonas, Rhizobium and Cellvibrio was associated with resistance/susceptibility. Relative abundance of Flavobacteria and Cellvibrio was increased in resistant genotypes according to their known ecological functions. In contrast, a higher relative abundance of Pseudomonas and Rhizobium, which are known to harbor many species with antagonistic properties to fungal pathogens, was found to be associated with susceptibility, indicating that these groups do not play a major role in genetically controlled resistance of oilseed rape against V. longisporum.
(© FEMS 2019.)
