Quasi-steady uptake and bacterial community assembly in a mathematical model of soil-phosphorus mobility

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dc.contributor.authorMoyles, Iain
dc.contributor.authorFowler, Andrew
dc.contributor.authorDonohue, John
dc.date.accessioned2020-12-18T19:25:56Z
dc.date.available2020-12-18T19:25:56Z
dc.date.issued2021-01-21
dc.description.abstractWe mathematically model the uptake of phosphorus by a soil community consisting of a plant and two bacterial groups: copiotrophs and oligotrophs. Four equilibrium states emerge, one for each of the species monopolising the resource and dominating the community and one with coexistence of all species. We show that the dynamics are controlled by the ratio of chemical adsorption to bacterial death permitting either oscillatory states or quasi-steady uptake. We show how a steady state can emerge which has soil and plant nutrient content unresponsive to increased fertilization. However, the additional fertilization supports the copiotrophs leading to community reassembly. Our results demonstrate the importance of time-series measurements in nutrient uptake experiments.en_US
dc.identifier.citationI.R. Moyles, J.G. Donohue, A.C. Fowler, Quasi-steady uptake and bacterial community assembly in a mathematical model of soil-phosphorus mobility, Journal of Theoretical Biology, Volume 509, 2021, 110530, ISSN 0022-5193, https://doi.org/10.1016/j.jtbi.2020.110530. (http://www.sciencedirect.com/science/article/pii/S0022519320303854) Abstract: We mathematically model the uptake of phosphorus by a soil community consisting of a plant and two bacterial groups: copiotrophs and oligotrophs. Four equilibrium states emerge, one for each of the species monopolising the resource and dominating the community and one with coexistence of all species. We show that the dynamics are controlled by the ratio of chemical adsorption to bacterial death permitting either oscillatory states or quasi-steady uptake. We show how a steady state can emerge which has soil and plant nutrient content unresponsive to increased fertilization. However, the additional fertilization supports the copiotrophs leading to community reassembly. Our results demonstrate the importance of time-series measurements in nutrient uptake experiments. Keywords: Plant-soil (below-ground) interactions; Nutrient cycling; Microbial dynamics; Microbial succession; Scarce nutrients; Carbon: phosphorus coupling; Mathematical ecologyen_US
dc.identifier.urihttps://doi.org/10.1016/j.jtbi.2020.110530en_US
dc.identifier.urihttp://hdl.handle.net/10315/38039
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rightsThis is a post-peer-review, pre-copyedit version of an article published in the Journal of Theoretical Biology. The final authenticated version is available online at: https://doi.org/10.1016/j.jtbi.2020.110530en_US
dc.rightsCC0 1.0 Universal*
dc.rights.articlehttps://www.sciencedirect.com/science/article/abs/pii/S0022519320303854en_US
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.subjectPlant-soil (below-ground) interactionsen_US
dc.subjectNutrient cyclingen_US
dc.subjectMicrobial dynamicsen_US
dc.subjectMicrobial successionen_US
dc.subjectScarce nutrientsen_US
dc.subjectCarbon: phosphorus couplingen_US
dc.subjectMathematical ecologyen_US
dc.titleQuasi-steady uptake and bacterial community assembly in a mathematical model of soil-phosphorus mobilityen_US
dc.typeArticleen_US

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