Research output: Contribution to journal › Article

**Mathematical modelling of fungi-initiated siderophore-iron interactions.** / Choudhury, Muhamed; Trevelyan, P.M.J.; Boswell, Graeme.

Research output: Contribution to journal › Article

Choudhury, M, Trevelyan, PMJ & Boswell, G 2020, 'Mathematical modelling of fungi-initiated siderophore-iron interactions', *Mathematical Medicine and Biology*. https://doi.org/10.1093/imammb/dqaa008

Choudhury, M., Trevelyan, P. M. J., & Boswell, G. (2020). Mathematical modelling of fungi-initiated siderophore-iron interactions. *Mathematical Medicine and Biology*. https://doi.org/10.1093/imammb/dqaa008

Choudhury M, Trevelyan PMJ, Boswell G. Mathematical modelling of fungi-initiated siderophore-iron interactions. Mathematical Medicine and Biology. 2020 Jul 14. https://doi.org/10.1093/imammb/dqaa008

@article{eb5140da1b70474fbfb1fe5ca5834da1,

title = "Mathematical modelling of fungi-initiated siderophore-iron interactions",

abstract = "Nearly all life forms require iron to survive and function. Microorganisms utilize a number of mechanisms to acquire iron including the production of siderophores, which are organic compounds that combine with ferric iron into forms that are easily absorbed by the microorganism. There has been significant experimental investigation into the role, distribution and function of siderophores in fungi but until now no predictive tools have been developed to qualify or quantify fungi-initiated siderophore-iron interactions. In this investigation, we construct the first mathematical models of siderophore function related to fungi. Initially, a set of partial differential equations are calibrated and integrated numerically to generate quantitative predictions on the spatio-temporal distributions of siderophores and related populations. This model is then reduced to a simpler set of equations that are solved algebraically giving rise to solutions that predict the distributions of siderophores and resultant compounds. These algebraic results require the calculation of zeros of cross products of Bessel functions and thus new algebraic expansions are derived for a variety of different cases that are in agreement with numerically computed values. The results of the modelling are consistent with experimental data while the analysis provides new quantitative predictions on the time scales involved between siderophore production and iron uptake along with how the total amount of iron acquired by the fungus depends on its environment. The implications to bio-technological applications are briefly discussed.",

keywords = "mathematical model, partial differential equations, numerical solution, ferric iron uptake",

author = "Muhamed Choudhury and P.M.J. Trevelyan and Graeme Boswell",

note = "{\circledC} The Author(s) 2020. Published by Oxford University Press on behalf of the Institute of Mathematics and its Applications. All rights reserved.",

year = "2020",

month = "7",

day = "14",

doi = "10.1093/imammb/dqaa008",

language = "English",

journal = "Mathematical Medicine and Biology",

issn = "1477-8599",

publisher = "Oxford University Press",

}

TY - JOUR

T1 - Mathematical modelling of fungi-initiated siderophore-iron interactions

AU - Choudhury, Muhamed

AU - Trevelyan, P.M.J.

AU - Boswell, Graeme

N1 - © The Author(s) 2020. Published by Oxford University Press on behalf of the Institute of Mathematics and its Applications. All rights reserved.

PY - 2020/7/14

Y1 - 2020/7/14

N2 - Nearly all life forms require iron to survive and function. Microorganisms utilize a number of mechanisms to acquire iron including the production of siderophores, which are organic compounds that combine with ferric iron into forms that are easily absorbed by the microorganism. There has been significant experimental investigation into the role, distribution and function of siderophores in fungi but until now no predictive tools have been developed to qualify or quantify fungi-initiated siderophore-iron interactions. In this investigation, we construct the first mathematical models of siderophore function related to fungi. Initially, a set of partial differential equations are calibrated and integrated numerically to generate quantitative predictions on the spatio-temporal distributions of siderophores and related populations. This model is then reduced to a simpler set of equations that are solved algebraically giving rise to solutions that predict the distributions of siderophores and resultant compounds. These algebraic results require the calculation of zeros of cross products of Bessel functions and thus new algebraic expansions are derived for a variety of different cases that are in agreement with numerically computed values. The results of the modelling are consistent with experimental data while the analysis provides new quantitative predictions on the time scales involved between siderophore production and iron uptake along with how the total amount of iron acquired by the fungus depends on its environment. The implications to bio-technological applications are briefly discussed.

AB - Nearly all life forms require iron to survive and function. Microorganisms utilize a number of mechanisms to acquire iron including the production of siderophores, which are organic compounds that combine with ferric iron into forms that are easily absorbed by the microorganism. There has been significant experimental investigation into the role, distribution and function of siderophores in fungi but until now no predictive tools have been developed to qualify or quantify fungi-initiated siderophore-iron interactions. In this investigation, we construct the first mathematical models of siderophore function related to fungi. Initially, a set of partial differential equations are calibrated and integrated numerically to generate quantitative predictions on the spatio-temporal distributions of siderophores and related populations. This model is then reduced to a simpler set of equations that are solved algebraically giving rise to solutions that predict the distributions of siderophores and resultant compounds. These algebraic results require the calculation of zeros of cross products of Bessel functions and thus new algebraic expansions are derived for a variety of different cases that are in agreement with numerically computed values. The results of the modelling are consistent with experimental data while the analysis provides new quantitative predictions on the time scales involved between siderophore production and iron uptake along with how the total amount of iron acquired by the fungus depends on its environment. The implications to bio-technological applications are briefly discussed.

KW - mathematical model

KW - partial differential equations

KW - numerical solution

KW - ferric iron uptake

U2 - 10.1093/imammb/dqaa008

DO - 10.1093/imammb/dqaa008

M3 - Article

C2 - 32666102

JO - Mathematical Medicine and Biology

JF - Mathematical Medicine and Biology

SN - 1477-8599

ER -

ID: 3324996