Temporal complementarity between roots and mycorrhizal fungi drives wheat nitrogen use efficiency

Bibliographische Detailangaben
Veröffentlicht in:	The New phytologist. - 1979. - 236(2022), 3 vom: 14. Nov., Seite 1168-1181
1. Verfasser:	Yang, Haishui (VerfasserIn)
Weitere Verfasser:	Fang, Chun, Li, Yifan, Wu, Yongcheng, Fransson, Petra, Rillig, Matthias C, Zhai, Silong, Xie, Junjie, Tong, Zongyi, Zhang, Qian, Sheteiwy, Mohamed S, Li, Fengmin, Weih, Martin
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 arbuscular mycorrhiza functional complementarity nitrogen utilisation efficiency root traits wheat Fertilizers Soil Phosphorus mehr... 27YLU75U4W Carbon 7440-44-0 Nitrogen N762921K75

Beschreibung
Zusammenfassung:	© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation. Improving nitrogen (N) use efficiency (NUE) to reduce the application of N fertilisers in a way that benefits the environment and reduces farmers' costs is an ongoing objective for sustainable wheat production. However, whether and how arbuscular mycorrhizal fungi (AMF) affect NUE in wheat is still not well explored. Three independent but complementary experiments were conducted to decipher the contribution of roots and AMF to the N uptake and utilisation efficiency in wheat. We show a temporal complementarity pattern between roots and AMF in shaping NUE of wheat. Pre-anthesis N uptake efficiency mainly depends on root functional traits, but the efficiency to utilise the N taken up during pre-anthesis for producing grains (EN,g ) is strongly affected by AMF, which might increase the uptake of phosphorus and thereby improve photosynthetic carbon assimilation. Root association with AMF reduced the N remobilisation efficiency in varieties with high EN,g ; whilst the overall grain N concentration increased, due to a large improvement in post-anthesis N uptake supported by AMF and/or other microbes. The findings provide evidence for the importance of managing AMF in agroecosystems, and an opportunity to tackle the contradiction between maximising grain yield and protein concentration in wheat breeding
Beschreibung:	Date Completed 07.10.2022 Date Revised 22.12.2022 published: Print-Electronic Citation Status MEDLINE
ISSN:	1469-8137
DOI:	10.1111/nph.18419