Resident and phytometer plants host comparable rhizosphere fungal communities in managed grassland ecosystems

Plants are known to modulate their own rhizosphere mycobiome. However, field studies that use resident plants to relate the microbiome assemblage to environmental factors such as land-use suffer from the problem that confounding factors such as plant age and performance may override the targeted eff...

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Bibliographic Details
Published in:	Scientific reports 2020-01, Vol.10 (1), p.919-919, Article 919
Main Authors:	Schöps, Ricardo, Goldmann, Kezia, Korell, Lotte, Bruelheide, Helge, Wubet, Tesfaye, Buscot, François
Format:	Article
Language:	eng
Subjects:	Dactylis - microbiology Dactylis - physiology Ecosystem Ecosystem management Environment Environmental factors Flowers & plants Grassland Grasslands Herbivores Host Microbial Interactions - physiology Host plants Land use Microbiomes Mycobiome Plantago - microbiology Plantago - physiology Rhizosphere rRNA Soil Microbiology Species
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Summary:	Plants are known to modulate their own rhizosphere mycobiome. However, field studies that use resident plants to relate the microbiome assemblage to environmental factors such as land-use suffer from the problem that confounding factors such as plant age and performance may override the targeted effects. In contrast, the use of even-aged phytometer plants pre-cultivated under uniform conditions helps to reduce such random variation. We investigated the rhizosphere mycobiomes of phytometer and resident plants of two common grassland species, Dactylis glomerata L. s. str. and Plantago lanceolata L. along a land-use intensity gradient using ITS rRNA Illumina amplicon sequencing. Remarkably, we did not detect effects of the plant types (resident vs. phytometer plant, even though some fungal taxa exhibited plant species specificity), indicating that phytometer plants hosted a comparable rhizosphere mycobiome as resident plants. Our data indicate that the plant species harbor distinct fungal communities, with fungal richness in the rhizosphere of P. lanceolata being substantially higher than that of D. glomerata. Land-use intensity had a clear impact on the mycobiome of both plant species, with specific fungal genera showing differential tolerance to high intensities. Overall, the phytometer approach has a high potential to reveal environmental impacts on rhizosphere communities.
ISSN:	2045-2322 2045-2322