Responses of a bacterial pathogen to phosphorus limitation of its aquatic invertebrate host

Ecology
Paul C FrostVal Smith

Abstract

Host nutrition is thought to affect the establishment, persistence, and severity of pathogenic infections. Nutrient-deficient foods possibly benefit pathogens by constraining host immune function or benefit hosts by limiting parasite growth and reproduction. However, the effects of poor elemental food quality on a host's susceptibility to infection and disease have received little study. Here we show that the bacterial microparasite Pasteuria ramosa is affected by the elemental nutrition of its aquatic invertebrate host, Daphnia magna. We found that high food carbon:phosphorus (C:P) ratios significantly reduced infection rates of Pasteuria in Daphnia and led to lower within-host pathogen multiplication. In addition, greater virulent effects of bacterial infection on host reproduction were found in Daphnia-consuming P-deficient food. Poor Daphnia elemental nutrition thus reduced the growth and reproduction of its bacterial parasite, Pasteuria. The effects of poor host nutrition on the pathogen were further evidenced by Pasteuria's greater inhibition of reproduction in P-limited Daphnia. Our results provide strong evidence that elemental food quality can significantly influence the incidence and intensity of infectious disease in...Continue Reading

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Citations

Dec 4, 2009·Oecologia·Paul C FrostAlexandra Zalewski
Feb 3, 2012·Proceedings. Biological Sciences·Brooks E MinerNelson G Hairston
Jun 18, 2014·Integrative and Comparative Biology·Robin W Warne
Oct 22, 2015·Global Change Biology·Thijs FrenkenDedmer B Van de Waal
Aug 4, 2015·Ecology·Ellen DecaesteckerSteven A J Declerck
Jul 18, 2008·The Journal of Animal Ecology·Paul C FrostVal H Smith
Dec 4, 2008·Ecology Letters·Spencer R HallCarla E Cáceres
Jun 14, 2013·Ecology and Evolution·Sanni L Aalto, Katja Pulkkinen
Nov 1, 2011·Ecology Letters·Erin P OverholtCarla E Cáceres
Feb 20, 2014·The Journal of Animal Ecology·Pieter T J Johnson, Jason T Hoverman
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Oct 16, 2015·Proceedings. Biological Sciences·Leiling TaoJacobus C de Roode
Mar 18, 2015·The New Phytologist·Briana K WhitakerCharles E Mitchell
Mar 4, 2015·The Journal of Animal Ecology·David J CivitelloSpencer R Hall
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Dec 3, 2016·Ecology·C TellenbachP Spaak
Nov 23, 2017·Frontiers in Microbiology·Christelle LacroixElizabeth T Borer
Jan 13, 2019·The Journal of Animal Ecology·Charlotte F NarrPaul C Frost
Aug 16, 2017·Ecology and Evolution·Nicole Chodkowski, Randall J Bernot
Mar 14, 2018·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·David J CivitelloJason R Rohr
Apr 10, 2019·Proceedings. Biological Sciences·Kristel F SánchezMark D Hunter
May 19, 2017·Evolutionary Applications·Hanna KinnulaLotta-Riina Sundberg
Nov 20, 2016·Ecology·Charlotte F Narr, Paul C Frost
Jul 28, 2019·International Journal for Parasitology·Kevin Sanchez-ThirionVincent Felten
Aug 26, 2021·Ecology and Evolution·Zhimeng XuHongbin Liu

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