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Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence arbuscular mycorrhizal fungi in a grassland ecosystem

Open access
Antoninka, Anita, Reich, Peter B., Johnson, Nancy Collins·2011·New Phytologist

Abstract

• We tested the prediction that the abundance and diversity of arbuscular mycorrhizal (AM) fungi are influenced by resource availability and plant community composition by examining the joint effects of carbon dioxide (CO(2) ) enrichment, nitrogen (N) fertilization and plant diversity on AM fungi. • We quantified AM fungal spores and extramatrical hyphae in 176 plots after 7 yr of treatment with all combinations of ambient or elevated CO(2) (368 or 560 ppm), with or without N fertilization (0 or 4 g Nm(-2) ), and one (monoculture) or 16 host plant species (polyculture) in the BioCON field experiment at Cedar Creek Ecosystem Science Reserve, Minnesota, USA. • Extramatrical hyphal lengths were increased by CO(2) enrichment, whereas AM spore abundance decreased with N fertilization. Spore abundance, morphotype richness and extramatrical hyphal lengths were all greater in monoculture plots. A structural equation model showed AM fungal biovolume was most influenced by CO(2) enrichment, plant community composition and plant richness, whereas spore richness was most influenced by fungal biovolume, plant community composition and plant richness. • Arbuscular mycorrhizal fungi responded to differences in host community and resource availability, suggesting that mycorrhizal functions, such as carbon sequestration and soil stability, will be affected by global change.

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Crossref · 10.1111/j.1469-8137.2011.03776.x

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Metadata

Authors
Antoninka, A., Reich, P. B., & Johnson, N. C.
Venue
New Phytologist
Publisher
Wiley
Published
2011-06-08
Volume
192
Issue
1
Pages
200-214
ISSN
  • 0028-646X (ISSN-L)
  • 1469-8137
OpenAlex
W2127318519
Cited by
184
References
6
FWCI
10.53
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence arbuscular mycorrhizal fungi in a grassland ecosystem. https://app.cochat.ai/papers/10.1111/j.1469-8137.2011.03776.x
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Antoninka, A., Reich, P. B., & Johnson, N. C. (2011). Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence arbuscular mycorrhizal fungi in a grassland ecosystem. New Phytologist. https://doi.org/10.1111/j.1469-8137.2011.03776.x

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