The bacterial parasite Pasteuria ramosa is not killed if it fails to infect: implications for coevolution [PDF]
Ecology and Evolution, 2013 Strong selection on parasites, as well as on hosts, is crucial for fueling coevolutionary dynamics. Selection will be especially strong if parasites that encounter resistant hosts are destroyed and diluted from the local environment.
Stuart Auld +2 more
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Variable-number tandem repeats as molecular markers for biotypes of Pasteuria ramosa in Daphnia spp. [PDF]
Applied and Environmental Microbiology, 2007 Variable-number tandem repeats (VNTRs) have been identified in populations of Pasteuria ramosa, a castrating endobacterium of Daphnia species. The allelic polymorphisms at 14 loci in laboratory and geographically diverse soil samples showed that VNTRs ...
Dieter Ebert, Laurence Mouton
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Genetic and immunological comparison of the cladoceran parasite Pasteuria ramosa with the nematode parasite Pasteuria penetrans. [PDF]
Applied and Environmental Microbiology, 2008 Pasteuria penetrans, an obligate endospore-forming parasite of Meloidogyne spp. (root knot nematodes), has been identified as a promising agent for biocontrol of these destructive agricultural crop pests.
Dieter Ebert, Laurence Mouton
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Resolving the infection process reveals striking differences in the contribution of environment, genetics and phylogeny to host-parasite interactions [PDF]
BMC Biology, 2011 Background Infection processes consist of a sequence of steps, each critical for the interaction between host and parasite. Studies of host-parasite interactions rarely take into account the fact that different steps might be influenced by different ...
Laforsch Christian +4 more
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Successfully resisting a pathogen is rarely costly in
BMC Evolutionary Biology, 2010 Background A central hypothesis in the evolutionary ecology of parasitism is that trade-offs exist between resistance to parasites and other fitness components such as fecundity, growth, survival, and predator avoidance, or resistance to other parasites.
Vale Pedro F +2 more
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Epidemiology of a Daphnia-multiparasite system and its implications for the red queen. [PDF]
PLoS ONE, 2012 The Red Queen hypothesis can explain the maintenance of host and parasite diversity. However, the Red Queen requires genetic specificity for infection risk (i.e., that infection depends on the exact combination of host and parasite genotypes) and ...
Stuart K J R Auld +3 more
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Resource quality differentially impacts Daphnia interactions with two parasites
EcosphereResource quality can have conflicting effects on host–parasite interactions; for example, higher resource quality might increase host investment in immune function, or conversely, might permit greater parasite reproduction.
Michelle L. Fearon +6 more
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Phenoloxidase but not lytic activity reflects resistance against Pasteuria ramosa in Daphnia magna. [PDF]
Biol Lett, 2011 The field of ecological immunology strongly relies on indicators of immunocompetence. Two major indicators in invertebrates, the activity of phenoloxidase (PO) and lytic activity have recently been questioned in studies showing that, across a natural ...
Pauwels K +3 more
europepmc +2 more sources
The visual ecology of selective predation: Are unhealthy hosts less stealthy hosts?
Ecology and Evolution, 2021 Predators can strongly influence disease transmission and evolution, particularly when they prey selectively on infected hosts. Although selective predation has been observed in numerous systems, why predators select infected prey remains poorly ...
Nina Wale +4 more
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Within–and between–population variation for resistance of Daphnia magna to the bacterial endoparasite Pasteuria ramosa [PDF]
Proceedings of the Royal Society of London Series B, Biological Sciences, 1998 Dieter Ebert
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