Nitrogen fertilisation disrupts the temporal dynamics of arbuscular mycorrhizal fungal hyphae but not spore density and community composition in a wheat field

© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 234(2022), 6 vom: 01. Juni, Seite 2057-2072
1. Verfasser: Babalola, Busayo Joshua (VerfasserIn)
Weitere Verfasser: Li, Jing, Willing, Claire Elizabeth, Zheng, Yong, Wang, Yong-Long, Gan, Hui-Yun, Li, Xing-Chun, Wang, Cong, Adams, Catharine A, Gao, Cheng, Guo, Liang-Dong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't agricultural practice arbuscular mycorrhizal fungi nitrogen fertilisation temporal dynamics watering reduction Soil Water 059QF0KO0R mehr... Nitrogen N762921K75
Beschreibung
Zusammenfassung:© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.
Elucidating the temporal dynamics of arbuscular mycorrhizal (AM) fungi is critical for understanding their functions. Furthermore, research investigating the temporal dynamics of AM fungi in response to agricultural practices remains in its infancy. We investigated the effect of nitrogen fertilisation and watering reduction on the temporal dynamics of AM fungi, across the lifespan of wheat. Nitrogen fertilisation decreased AM fungal spore density (SD), extraradical hyphal density (ERHD), and intraradical colonisation rate (IRCR) in both watering conditions. Nitrogen fertilisation affected AM fungal community composition in soil but not in roots, regardless of watering conditions. The temporal analysis revealed that AM fungal ERHD and IRCR were higher under conventional watering and lower under reduced watering in March than in other growth stages at low (≤ 70 kg N ha-1  yr-1 ) but not at high (≥ 140) nitrogen fertilisation levels. AM fungal SD was lower in June than in other growth stages and community composition varied with plant development at all nitrogen fertilisation levels, regardless of watering conditions. This study demonstrates that high nitrogen fertilisation levels disrupt the temporal dynamics of AM fungal hyphal growth but not sporulation and community composition
Beschreibung:Date Completed 24.05.2022
Date Revised 31.05.2022
published: Print-Electronic
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.18043