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Carbon partitioning in a walnut-maize agroforestry system through arbuscular mycorrhizal fungi
Rhizosphere ( IF 3.4 ) Pub Date : 2020-07-12 , DOI: 10.1016/j.rhisph.2020.100230
Diederik van Tuinen , Eloïse Tranchand , François Hirissou , Daniel Wipf , Pierre-Emmanuel Courty

In tree-based intercropping systems, roots of trees and crops are interacting and could influence ecosystem services provided by soil microorganisms. Here, the analysis of diversity of arbuscular mycorrhiza fungi (AMF) associated with roots of walnut and maize reveals differences. Of interest, Funneliformis genus is mainly associated with maize roots, and one OTU related to an uncultured Glomus, might form a common mycorrhizal network linking roots of both plants. In addition, the analysis of 13C of mycelium living in the surrounding environment of roots, suggest that part of the carbon derived from walnut trees could be transferred to maize plants. Our results suggest that in temperate agroforestry ecosystems, AMF could participle in the redistribution of nutrients between connected plants.



中文翻译:

通过丛枝菌根真菌在核桃-玉米农林业系统中进行碳分配

在基于树木的间作系统中,树木和农作物的根系相互作用,并可能影响土壤微生物提供的生态系统服务。在这里,对与核桃和玉米根相关的丛枝菌根真菌(AMF)多样性的分析揭示了差异。有趣的是,漏斗形属(Funneliformis)属主要与玉米根相关,而与未培养的Glomus相关的一个OTU可能会形成连接两种植物根的常见菌根网络。另外,分析13根部周围环境中存在的菌丝体碳,表明核桃树中部分碳可以转移到玉米中。我们的结果表明,在温带农林业生态系统中,AMF可以参与相连植物之间养分的重新分配。

更新日期:2020-07-12
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