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Ammonium fertilization increases the susceptibility to fungal leaf and root pathogens in winter wheat

dc.contributor.authorMaywald, Niels Julian
dc.contributor.authorMang, Melissa
dc.contributor.authorPahls, Nathalie
dc.contributor.authorNeumann, Günter
dc.contributor.authorLudewig, Uwe
dc.contributor.authorFrancioli, Davide
dc.date.accessioned2024-09-03T14:03:44Z
dc.date.available2024-09-03T14:03:44Z
dc.date.issued2022de
dc.description.abstractNitrogen (N) fertilization is indispensable for high yields in agriculture due to its central role in plant growth and fitness. Different N forms affect plant defense against foliar pathogens and may alter soil–plant-microbe interactions. To date, however, the complex relationships between N forms and host defense are poorly understood. For this purpose, nitrate, ammonium, and cyanamide were compared in greenhouse pot trials with the aim to suppress two important fungal wheat pathogens Blumeria graminis f. sp. tritici (Bgt) and Gaeumannomyces graminis f. sp. tritici (Ggt). Wheat inoculated with the foliar pathogen Bgt was comparatively up to 80% less infested when fertilized with nitrate or cyanamide than with ammonium. Likewise, soil inoculation with the fungal pathogen Ggt revealed a 38% higher percentage of take-all infected roots in ammonium-fertilized plants. The bacterial rhizosphere microbiome was little affected by the N form, whereas the fungal community composition and structure were shaped by the different N fertilization, as revealed from metabarcoding data. Importantly, we observed a higher abundance of fungal pathogenic taxa in the ammonium-fertilized treatment compared to the other N treatments. Taken together, our findings demonstrated the critical role of fertilized N forms for host–pathogen interactions and wheat rhizosphere microbiome assemblage, which are relevant for plant fitness and performance.en
dc.identifier.swb1818344319
dc.identifier.urihttps://hohpublica.uni-hohenheim.de/handle/123456789/16571
dc.identifier.urihttps://doi.org/10.3389/fpls.2022.946584
dc.language.isoengde
dc.rights.licensecc_byde
dc.source1664-462Xde
dc.sourceFrontiers in plant science; Vol. 13 (2022) 946584de
dc.subjectDisease management
dc.subjectCrop-pathogen interactions
dc.subjectPlant-microbe interactions
dc.subjectNitrogen
dc.subjectNitrate
dc.subjectCyanamide
dc.subjectBlumeria graminis
dc.subjectGaeumannomyces graminis
dc.subject.ddc630
dc.titleAmmonium fertilization increases the susceptibility to fungal leaf and root pathogens in winter wheaten
dc.type.diniArticle
dcterms.bibliographicCitationFrontiers in plant science, 13 (2022), 946584. https://doi.org/10.3389/fpls.2022.946584. ISSN: 1664-462X
dcterms.bibliographicCitation.journaltitleFrontiers in plant science
dcterms.bibliographicCitation.volume13
local.export.bibtex@article{Maywald2022, url = {https://hohpublica.uni-hohenheim.de/handle/123456789/16571}, doi = {10.3389/fpls.2022.946584}, author = {Maywald, Niels Julian and Mang, Melissa and Pahls, Nathalie et al.}, title = {Ammonium fertilization increases the susceptibility to fungal leaf and root pathogens in winter wheat}, journal = {Frontiers in plant science}, year = {2022}, volume = {13}, }
local.export.bibtexAuthorMaywald, Niels Julian and Mang, Melissa and Pahls, Nathalie et al.
local.export.bibtexKeyMaywald2022
local.export.bibtexType@article

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