Community response of arbuscular mycorrhizal fungi to extreme drought in a cold-temperate grassland
© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.
Veröffentlicht in: | The New phytologist. - 1979. - 234(2022), 6 vom: 01. Juni, Seite 2003-2017 |
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1. Verfasser: | |
Weitere Verfasser: | , , , , , , , , , , , |
Format: | Online-Aufsatz |
Sprache: | English |
Veröffentlicht: |
2022
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Zugriff auf das übergeordnete Werk: | The New phytologist |
Schlagworte: | Journal Article Research Support, Non-U.S. Gov't arbuscular mycorrhiza belowground biodiversity climate change community interactions environmental filtering mutualism species coexistence Soil |
Zusammenfassung: | © 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation. Climate extremes pose enormous threats to natural ecosystems. Arbuscular mycorrhizal (AM) fungi are key plant symbionts that can affect plant community dynamics and ecosystem stability. However, knowledge about how AM fungal communities respond to climate extremes in natural ecosystems remains elusive. Based on a grassland extreme drought experiment in Inner Mongolia, we investigated the response of AM fungal communities to extreme drought in association with plant communities. The experiment simulated two types of extreme drought (chronic/intense) of once-in-20-year occurrence. AM fungal richness and community composition exhibited high sensitivity to extreme drought and were more sensitive to intense drought than chronic drought. This community sensitivity (i.e. decline in richness and shifts in community composition) of AM fungi can be jointly explained by soil moisture, plant richness, and aboveground productivity. Notably, the robustness of the plant-AM fungal community co-response increased with drought intensity. Our results indicate that AM fungal communities are sensitive to climate extremes, and we propose that the plant community mediates AM fungal community responses. Given the ubiquitous nature of AM associations, their climate sensitivity may have profound consequences on plant communities and ecosystem stability under climate change |
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Beschreibung: | Date Completed 24.05.2022 Date Revised 31.05.2022 published: Print-Electronic figshare: 10.6084/m9.figshare.14495811.v2 Citation Status MEDLINE |
ISSN: | 1469-8137 |
DOI: | 10.1111/nph.17692 |