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Journal article
Diurnal Rhythmicity in the Rhizosphere Microbiome—Mechanistic Insights and Significance for Rhizosphere Function
Plant, cell and environment, Vol.48(3), pp.2040-2052
2024
Abstract
The rhizosphere is a key interface between plants, microbes and the soil which influences plant health and nutrition and modulates terrestrial biogeochemical cycling. Recent research has shown that the rhizosphere environment is far more dynamic than previously recognised, with evidence emerging for diurnal rhythmicity in rhizosphere chemistry and microbial community composition. This rhythmicity is in part linked to the host plant's circadian rhythm, although some heterotrophic rhizosphere bacteria and fungi may also possess intrinsic rhythmicity. We review the evidence for diurnal rhythmicity in rhizosphere microbial communities and its link to the plant circadian clock. Factors which may drive microbial rhythmicity are discussed, including diurnal change in root exudate flux and composition, rhizosphere physico-chemical properties and plant immunity. Microbial processes which could contribute to community rhythmicity are considered, including self-sustained microbial rhythms, bacterial movement into and out of the rhizosphere, and microbe-microbe interactions. We also consider evidence that changes in microbial composition mediated by the plant circadian clock may affect microbial function and its significance for plant health and broader soil biogeochemical cycling processes. We identify key knowledge gaps and approaches which could help to resolve the spatial and temporal variation and functional significance of rhizosphere microbial rhythmicity. This includes unravelling the factors which determine the oscillation of microbial activity, growth and death, and cross-talk with the host over diurnal time frames. We conclude that diurnal rhythmicity is an inherent characteristic of the rhizosphere and that temporal factors should be considered and reported in rhizosphere studies.
Details
- Title
- Diurnal Rhythmicity in the Rhizosphere Microbiome—Mechanistic Insights and Significance for Rhizosphere Function
- Authors/Creators
- Gary D. Bending - Coventry (United Kingdom)Amy Newman - University of WarwickEmma Picot - University of WarwickRyan M. Mushinski - University of WarwickDavey L. Jones - Murdoch University, Centre for Sustainable Farming SystemsIsabelle A. Carré - University of Warwick
- Publication Details
- Plant, cell and environment, Vol.48(3), pp.2040-2052
- Publisher
- John Wiley & Sons Ltd.
- Number of pages
- 13
- Grant note
- The Natural Environment Research Council (NERC, grant NE/S010270/1), the Central England NERC Training Alliance, and the Biotechnology and Biosciences Research Council (grant BB/L025892/1) for funding.: NE/S010270/1 Natural Environment Research Council (NERC)Central England NERC Training Alliance: BB/L025892/1 Biotechnology and Biosciences Research Council
We thank the Natural Environment Research Council (NERC, grant NE/S010270/1), the Central England NERC Training Alliance, and the Biotechnology and Biosciences Research Council (grant BB/L025892/1) for funding.
- Identifiers
- 991005718968207891
- Copyright
- © 2024 The Author(s).
- Murdoch Affiliation
- Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.97 Plant Pathology
- 3.97.556 Microbial Biocontrol
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science