Atmospheric pollution, soil nutrients and climate effects on Mucoromycota arbuscular mycorrhizal fungi

Kowal, J.; Arrigoni, E.; Jarvis, S. ORCID: https://orcid.org/0000-0001-5382-5135; Zappala, S.; Forbes, E.; Bidartondo, M.; Suz, L.M.. 2022 Atmospheric pollution, soil nutrients and climate effects on Mucoromycota arbuscular mycorrhizal fungi [in special issue: Microbial ecology of plants] Environmental Microbiology, 24 (8). 3390-3404. https://doi.org/10.1111/1462-2920.16040

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Official URL: https://doi.org/10.1111/1462-2920.16040

Abstract/Summary

Fine root endophyte mycorrhizal fungi in the Endogonales (Mucoromycota arbuscular mycorrhizal fungi, M-AMF) are now recognized as at least as important globally as Glomeromycota AMF (G-AMF), yet little is known about the environmental factors which influence M-AMF diversity and colonization, partly because they typically only co-colonize plants with G-AMF. Wild populations of Lycopodiella inundata predominantly form mycorrhizas with M-AMF and therefore allow focussed study of M-AMF environmental drivers. Using microscopic examination and DNA sequencing we measured M-AMF colonization and diversity over three consecutive seasons and modelled interactions between these response variables and environmental data. Significant relationships were found between M-AMF colonization and soil S, P, C:N ratio, electrical conductivity, and the previously overlooked micronutrient Mn. Estimated N deposition was negatively related to M-AMF colonization. Thirty-nine Endogonales Operational Taxonomic Units (OTUs) were identified in L. inundata roots, a greater diversity than previously recognized in this plant. Endogonales OTU richness correlated negatively with soil C:N while community composition was mostly influenced by soil P. This study provides first evidence that M-AMF have distinct ecological preferences in response to edaphic variables also related to air pollution. Future studies require site-level atmospheric pollution monitoring to guide critical load policy for mycorrhizal fungi in heathlands and grasslands.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1111/1462-2920.16040
UKCEH and CEH Sections/Science Areas:	Soils and Land Use (Science Area 2017-)
ISSN:	1462-2912
Additional Information. Not used in RCUK Gateway to Research.:	Open Access paper - full text available via Official URL link.
NORA Subject Terms:	Ecology and Environment
Date made live:	04 Jul 2022 13:15 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/532838

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1111/1462-2920.16040

UKCEH and CEH Sections/Science Areas:

Soils and Land Use (Science Area 2017-)

ISSN:

1462-2912

Additional Information. Not used in RCUK Gateway to Research.:

Open Access paper - full text available via Official URL link.

NORA Subject Terms:

Ecology and Environment