From rhizosphere to detritusphere – Soil structure formation driven by plant roots and the interactions with soil biota
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We provide a comprehensive review of current knowledge and novel insights into processes that drive the formation and stabilization of soil structure in the rhizosphere. These processes are regulated by multiple indirect and direct pathways, involving root growth, the production of rhizodeposits and root hairs, as well as the activity of soil microorganisms and fauna. Further, we highlight that rhizosphere processes may persist and evolve after root death to an extent currently largely unknown. Finally, we identify five pertinent challenges that should be addressed to fully apprehend rhizosphere processes and thus harness the potential resilience of plant-soil interactions. These challenges include refining structural assessment and sampling of rhizosheaths, examining the rhizosphere in-situ and bridging the gap between solid phase and pore scale research. In our view, overcoming these obstacles can be accomplished by combining the power of imaging and isotopic approaches, especially at the field scale, encompassing diverse soils and plant species. The ultimate objective of future research should be to upscale rhizosphere processes by conducting more field experiments in concert with modeling efforts, under the umbrella of collaborative interdisciplinary research.
Originalsprog | Engelsk |
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Artikelnummer | 109396 |
Tidsskrift | Soil Biology and Biochemistry |
Vol/bind | 193 |
Antal sider | 13 |
ISSN | 0038-0717 |
DOI | |
Status | Udgivet - 2024 |
Bibliografisk note
Funding Information:
We especially thank the two editors handling our manuscript for their constructive feedback and valuable suggestions that significantly increased the quality and sharpened the focus of the manuscript. We also thank two anonymous reviewers for their insightful comments and suggestions. We are very grateful for the excellent support during NanoSIMS analyses and image processing by Carmen Hoeschen at Technische Universität München. The authors thank the DFG, German Research Foundation, for the funding in the framework of the priority program 2089 “Rhizosphere spatiotemporal organisation - a key to rhizosphere functions”.
Publisher Copyright:
© 2024 The Authors
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