Environmental Filtering Drives Fungal Phyllosphere Community in Regional Agricultural Landscapes

To adapt to climate change, several agricultural strategies are currently being explored, including a shift in land use areas. Regional differences in microbiome composition and associated phytopathogens need to be considered. However, most empirical studies on differences in the crop microbiome foc...

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Bibliographic Details
Published in:Plants (Basel) 2023-01, Vol.12 (3), p.507
Main Authors: Hoffmann, Annika, Posirca, Alexandra-Raluca, Lewin, Simon, Verch, Gernot, Büttner, Carmen, Müller, Marina E H
Format: Article
Language:English
Subjects:
Agricultural land
Agricultural production
Agriculture
Biomarkers
Climate change
Climatic changes
Climatic conditions
community assembly
Corn
Distribution
Environmental aspects
Filters
Fungi
Fusarium
ITS
Land use
LEfSe
Microbiomes
Pathogens
Phyllosphere
Physiological aspects
Phytopathogenic fungi
Precipitation
regional filter processes
Regions
Shifting cultivation
Soil conditions
Soils
Wheat
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Summary:To adapt to climate change, several agricultural strategies are currently being explored, including a shift in land use areas. Regional differences in microbiome composition and associated phytopathogens need to be considered. However, most empirical studies on differences in the crop microbiome focused on soil communities, with insufficient attention to the phyllosphere. In this study, we focused on wheat ears in three regions in northeastern Germany (Magdeburger Börde (MBB), Müncheberger Sander (MSA), Uckermärkisches Hügelland (UKH)) with different yield potentials, soil, and climatic conditions. To gain insight into the fungal community at different sites, we used a metabarcoding approach (ITS-NGS). Further, we examined the diversity and abundance of and using culture-dependent and culture-independent techniques. For each region, the prevalence of different orders rich in phytopathogenic fungi was determined: Sporidiobolales in MBB, Capnodiales and Pleosporales in MSA, and Hypocreales in UKH were identified as taxonomic biomarkers. Additionally, was found predominantly in UKH, whereas was more abundant in the other two regions. Environmental filters seem to be strong drivers of these differences, but we also discuss the possible effects of dispersal and interaction filters. Our results can guide shifting cultivation regions to be selected in the future concerning their phytopathogenic infection potential.
ISSN:2223-7747
2223-7747
DOI:10.3390/plants12030507