Temperature-dependent transmission and latency of Holospora undulata, a micronucleus-specific parasite of the ciliate Paramecium caudatum.

Proceedings. Biological Sciences
D Fels, Oliver Kaltz

Abstract

Transmission of parasites to new hosts crucially depends on the timing of production of transmission stages and their capacity to start an infection. These parameters may be influenced by genetic factors, but also by the environment. We tested the effects of temperature and host genotype on infection probability and latency in experimental populations of the ciliate Paramecium caudatum, after exposure to infectious forms of its bacterial parasite Holospora undulata. Temperature had a significant effect on the expression of genetic variation for transmission and maintenance of infection. Overall, low temperature (10 degrees C) increased levels of (multiple) infection, but arrested parasite development; higher temperatures (23 and 30 degrees C) accelerated the onset of production of infectious forms, but limited transmission success. Viability of infectious forms declined rapidly at 23 and 30 degrees C, thereby narrowing the time window for transmission. Thus, environmental conditions can generate trade-offs between transmission relevant parameters and alter levels of multiple infection or parasite-mediated selection, which may affect evolutionary trajectories of parasite life history or virulence.

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Citations

Dec 24, 2010·Proceedings. Biological Sciences·Rafal Mostowy, Jan Engelstädter
Jun 14, 2013·Proceedings. Biological Sciences·Ellie HarrisonMichael A Brockhurst
Aug 24, 2013·Proceedings. Biological Sciences·Alison B DuncanOliver Kaltz
Oct 18, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Brian P Lazzaro, Tom J Little
Apr 3, 2009·PloS One·Daniel Fels
May 30, 2014·Proceedings. Biological Sciences·Anna-Liisa LainePeter H Thrall
May 18, 2011·Research in Microbiology·Alison B DuncanOliver Kaltz
Apr 10, 2009·Trends in Parasitology·Justyna Wolinska, Kayla C King
Apr 19, 2007·Evolution; International Journal of Organic Evolution·Alison B Duncan, Tom J Little
Aug 9, 2007·Evolution; International Journal of Organic Evolution·Thibault Nidelet, Oliver Kaltz
Aug 9, 2006·Evolution; International Journal of Organic Evolution·Konrad LohseOliver Kaltz
Jan 19, 2011·The Journal of Ecology·Anna-Liisa LainePeter H Thrall
Apr 22, 2010·Journal of Evolutionary Biology·S AdibaOliver Kaltz
Mar 11, 2015·Evolution; International Journal of Organic Evolution·Eike DusiOliver Kaltz
Sep 12, 2016·Trends in Parasitology·Otto Seppälä, Jukka Jokela
Oct 25, 2016·Molecular Ecology·Daniel Croll, Bruce A McDonald
Nov 23, 2016·Ecology Letters·Quan-Guo Zhang, Angus Buckling
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Jun 16, 2021·Biology Letters·Tobias E HectorMatthew D Hall
Jun 26, 2021·Global Change Biology·Tobias E HectorMatthew D Hall

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