Microbe-mediated host defence drives the evolution of reduced pathogen virulence.
Microbe-mediated host defence drives the evolution of reduced pathogen virulence.
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DOI:
10.1038/ncomms13430
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发表时间:
2016-11-15
影响因子:
16.6
通讯作者:
King, Kayla C.
中科院分区:
文献类型:
--
作者:
Ford, Suzanne A.;Kao, Damian;Williams, David;King, Kayla C.
Microbes that protect their hosts from pathogens are widespread in nature and are attractive disease control agents. Given that pathogen adaptation to barriers against infection can drive changes in pathogen virulence, ‘defensive microbes' may shape disease severity. Here we show that co-evolving a microbe with host-protective properties (Enterococcus faecalis) and a pathogen (Staphylococcus aureus) within Caenorhabditis elegans hosts drives the evolution of reduced pathogen virulence as a by-product of adaptation to the defensive microbe. Using both genomic and phenotypic analyses, we discover that the production of fewer iron-scavenging siderophores by the pathogen reduces the fitness of the defensive microbe and underpins the decline in pathogen virulence. These data show that defensive microbes can shape the evolution of pathogen virulence and that the mechanism of pathogen resistance can determine the direction of virulence evolution. Some microbes protect their hosts from pathogens and likely drive pathogens' evolution. Here, Ford et al. show that a host-protective microbe selects for reduced virulence of a pathogen in the model organism Caenorhabditis elegans.
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影响因子:
3.1
作者:
Dale, SE;Doherty-Kirby, A;Heinrichs, DE
通讯作者:
Heinrichs, DE
DOI:
10.1038/ismej.2015.259
发表时间:
2016-08
期刊:
The ISME journal
影响因子:
--
作者:
通讯作者:
--
影响因子:
4.5
作者:
Chrostek E;Marialva MS;Esteves SS;Weinert LA;Martinez J;Jiggins FM;Teixeira L
通讯作者:
Teixeira L
影响因子:
8.8
作者:
Garbutt, Jennie;Bonsall, Michael B.;Raymond, Ben
通讯作者:
Raymond, Ben
影响因子:
11
作者:
Fuentes, Susana;van Nood, Els;de Vos, Willem M.
通讯作者:
de Vos, Willem M.