Cargando…

Temperature Alters Host Genotype-Specific Susceptibility to Chytrid Infection

The cost of parasitism often depends on environmental conditions and host identity. Therefore, variation in the biotic and abiotic environment can have repercussions on both, species-level host-parasite interaction patterns but also on host genotype-specific susceptibility to disease. We exposed sev...

Descripción completa

Detalles Bibliográficos
Autores principales: Gsell, Alena S., de Senerpont Domis, Lisette N., van Donk, Ellen, Ibelings, Bas W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3753301/
https://www.ncbi.nlm.nih.gov/pubmed/23990982
http://dx.doi.org/10.1371/journal.pone.0071737
_version_ 1782281809874124800
author Gsell, Alena S.
de Senerpont Domis, Lisette N.
van Donk, Ellen
Ibelings, Bas W.
author_facet Gsell, Alena S.
de Senerpont Domis, Lisette N.
van Donk, Ellen
Ibelings, Bas W.
author_sort Gsell, Alena S.
collection PubMed
description The cost of parasitism often depends on environmental conditions and host identity. Therefore, variation in the biotic and abiotic environment can have repercussions on both, species-level host-parasite interaction patterns but also on host genotype-specific susceptibility to disease. We exposed seven genetically different but concurrent strains of the diatom Asterionella formosa to one genotype of its naturally co-occurring chytrid parasite Zygorhizidium planktonicum across five environmentally relevant temperatures. We found that the thermal tolerance range of the tested parasite genotype was narrower than that of its host, providing the host with a “cold” and “hot” thermal refuge of very low or no infection. Susceptibility to disease was host genotype-specific and varied with temperature level so that no genotype was most or least resistant across all temperatures. This suggests a role of thermal variation in the maintenance of diversity in disease related traits in this phytoplankton host. The duration and intensity of chytrid parasite pressure on host populations is likely to be affected by the projected changes in temperature patterns due to climate warming both through altering temperature dependent disease susceptibility of the host and, potentially, through en- or disabling thermal host refugia. This, in turn may affect the selective strength of the parasite on the genetic architecture of the host population.
format Online
Article
Text
id pubmed-3753301
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-37533012013-08-29 Temperature Alters Host Genotype-Specific Susceptibility to Chytrid Infection Gsell, Alena S. de Senerpont Domis, Lisette N. van Donk, Ellen Ibelings, Bas W. PLoS One Research Article The cost of parasitism often depends on environmental conditions and host identity. Therefore, variation in the biotic and abiotic environment can have repercussions on both, species-level host-parasite interaction patterns but also on host genotype-specific susceptibility to disease. We exposed seven genetically different but concurrent strains of the diatom Asterionella formosa to one genotype of its naturally co-occurring chytrid parasite Zygorhizidium planktonicum across five environmentally relevant temperatures. We found that the thermal tolerance range of the tested parasite genotype was narrower than that of its host, providing the host with a “cold” and “hot” thermal refuge of very low or no infection. Susceptibility to disease was host genotype-specific and varied with temperature level so that no genotype was most or least resistant across all temperatures. This suggests a role of thermal variation in the maintenance of diversity in disease related traits in this phytoplankton host. The duration and intensity of chytrid parasite pressure on host populations is likely to be affected by the projected changes in temperature patterns due to climate warming both through altering temperature dependent disease susceptibility of the host and, potentially, through en- or disabling thermal host refugia. This, in turn may affect the selective strength of the parasite on the genetic architecture of the host population. Public Library of Science 2013-08-26 /pmc/articles/PMC3753301/ /pubmed/23990982 http://dx.doi.org/10.1371/journal.pone.0071737 Text en © 2013 Gsell et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Gsell, Alena S.
de Senerpont Domis, Lisette N.
van Donk, Ellen
Ibelings, Bas W.
Temperature Alters Host Genotype-Specific Susceptibility to Chytrid Infection
title Temperature Alters Host Genotype-Specific Susceptibility to Chytrid Infection
title_full Temperature Alters Host Genotype-Specific Susceptibility to Chytrid Infection
title_fullStr Temperature Alters Host Genotype-Specific Susceptibility to Chytrid Infection
title_full_unstemmed Temperature Alters Host Genotype-Specific Susceptibility to Chytrid Infection
title_short Temperature Alters Host Genotype-Specific Susceptibility to Chytrid Infection
title_sort temperature alters host genotype-specific susceptibility to chytrid infection
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3753301/
https://www.ncbi.nlm.nih.gov/pubmed/23990982
http://dx.doi.org/10.1371/journal.pone.0071737
work_keys_str_mv AT gsellalenas temperaturealtershostgenotypespecificsusceptibilitytochytridinfection
AT desenerpontdomislisetten temperaturealtershostgenotypespecificsusceptibilitytochytridinfection
AT vandonkellen temperaturealtershostgenotypespecificsusceptibilitytochytridinfection
AT ibelingsbasw temperaturealtershostgenotypespecificsusceptibilitytochytridinfection