Pedosphere 34(2): 374--384, 2024
ISSN 1002-0160/CN 32-1315/P
©2024 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Effects of arbuscular mycorrhizal fungi on zinc uptake, translocation and accumulation in winter wheat during whole plant growth stages |
Jing YANG1,2, Chuangye ZHANG1,2, Yifan LIU1,2, Yuanzhe MA1,2, Xiangyao WU1,2, Jun CAI1,2, Fuyong WU1,2, |
| 1 College of Natural Resources and Environment, Northwest A&F University, Yangling 712100 (China) 2 Key Laboratory of Plant Nutrition and Agricultural Environment of Northwest of Ministry of Agriculture, Yangling 712100 (China) |
| ABSTRACT |
| Although arbuscular mycorrhizal fungi (AMF) could play important roles in zinc (Zn) uptake in host plants, the effects of AMF on Zn uptake and transport in winter wheat during the whole growth stages remain unclear. A pot experiment was conducted to investigate the effects of Funneliformis mosseae (Fm) and Claroideoglomus etunicatum (Ce) on Zn absorption, transport, and accumulation in winter wheat growing in soils spiked with different Zn levels (0, 2.5, and 25 mg kg-1). The results showed that there was a significant correlation between mycorrhizal colonization rate and Zn absorption efficiency in winter wheat roots during the post-anthesis period, but there was no significant correlation during the pre-anthesis period. Arbuscular mycorrhizal fungi significantly increased Zn concentrations (0.56-1.58 times) in wheat grains under 0 mg kg-1 Zn level, but decreased Zn concentrations in wheat grains under 25 mg kg-1 Zn level. Additionally, at the filling and maturity stages, AMF increased Zn absorption rate and the contribution of root Zn uptake to grain Zn by 3-14 and 0.36-0.64 times, respectively, under 0 mg kg-1 Zn level and 0.21-1.02 and 0.27-0.37 times, respectively, under 2.5 mg kg-1 Zn level. However, AMF decreased root Zn absorption rate (0.32-0.61 times) and increased the contribution of Zn remobilization in vegetative tissues to grain Zn (1.69-2.01 times) under 25 mg kg-1 Zn level. This study would complement the mechanisms and effects of AMF on Zn absorption and transport in winter wheat and provide a potential method for the application of AMF to enrich wheat grain Zn. |
| Key Words: grain Zn source,mycorrhizal response,post-anthesis period,Zn absorption rate,Zn remobilization |
| Citation: Yang J, Zhang C Y, Liu Y F, Ma Y Z, Wu X Y, Cai J, Wu F Y. 2024. Effects of arbuscular mycorrhizal fungi on zinc uptake, translocation and accumulation in winter wheat during whole plant growth stages. Pedosphere. 34(2): 374-384. |
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