Modeling nutrient and disease dynamics in a plant-pathogen system

Bruce Pell, Amy E. Kendig, Elizabeth T. Borer, Yang Kuang

Research output: Contribution to journalArticle

Abstract

Human activities alter elemental nutrient cycling, which can have profound impacts on agriculture, grasslands, lakes, and other systems. It is becoming increasingly clear that enhanced nitrogen and phosphorus levels can affect disease dynamics across a range of taxa. However, there are few mathematical models that explicitly incorporate nutrients into host-pathogen interactions. Using viral load and plant mass data from an experiment with cereal yellow dwarf virus and its host plant, Avena sativa, we propose and compare two models describing the overall infection dynamics. However, the first model considers nutrient-limited virus production while the other considers a nutrient-induced viral production delay. A virus reproduction number is derived for this nutrient model, which depends on environmental and physiological attributes. Results suggest that including nutrient mediated viral production mechanisms can give rise to robust models that can be used to untangle how nutrients impact pathogen dynamics.

Original languageEnglish (US)
Pages (from-to)234-264
Number of pages31
JournalMathematical Biosciences and Engineering
Volume16
Issue number1
DOIs
StatePublished - Jan 1 2019

Fingerprint

Pathogens
Nutrients
plant pathogens
Food
nutrients
Modeling
Viruses
Virus
Cereal yellow dwarf virus-RPV
host-pathogen relationships
Host-Pathogen Interactions
Reproduction number
Avena sativa
virus replication
viral load
Phosphorus
Agriculture
Cycling
biogeochemical cycles
Lakes

Keywords

  • cereal yellow dwarf viruses
  • delay differential equation
  • disease ecology
  • droop equation
  • within-host

ASJC Scopus subject areas

  • Modeling and Simulation
  • Agricultural and Biological Sciences(all)
  • Computational Mathematics
  • Applied Mathematics

Cite this

Modeling nutrient and disease dynamics in a plant-pathogen system. / Pell, Bruce; Kendig, Amy E.; Borer, Elizabeth T.; Kuang, Yang.

In: Mathematical Biosciences and Engineering, Vol. 16, No. 1, 01.01.2019, p. 234-264.

Research output: Contribution to journalArticle

Pell, Bruce ; Kendig, Amy E. ; Borer, Elizabeth T. ; Kuang, Yang. / Modeling nutrient and disease dynamics in a plant-pathogen system. In: Mathematical Biosciences and Engineering. 2019 ; Vol. 16, No. 1. pp. 234-264.
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