Biocontrol Traits Correlate With Resistance to Predation by Protists in Soil Pseudomonads
Root-colonizing bacteria can support plant growth and help fend off pathogens. It is clear that such bacteria benefit from plant-derived carbon, but it remains ambiguous why they invest in plant-beneficial traits. We suggest that selection via protist predation contributes to recruitment of plant-be...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-12-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2020.614194/full |
| _version_ | 1818565276634972160 |
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| author | Nathalie Amacker Zhilei Gao Betina C. Agaras Ellen Latz George A. Kowalchuk Claudio F. Valverde Alexandre Jousset Simone Weidner Simone Weidner |
| author_facet | Nathalie Amacker Zhilei Gao Betina C. Agaras Ellen Latz George A. Kowalchuk Claudio F. Valverde Alexandre Jousset Simone Weidner Simone Weidner |
| author_sort | Nathalie Amacker |
| collection | DOAJ |
| description | Root-colonizing bacteria can support plant growth and help fend off pathogens. It is clear that such bacteria benefit from plant-derived carbon, but it remains ambiguous why they invest in plant-beneficial traits. We suggest that selection via protist predation contributes to recruitment of plant-beneficial traits in rhizosphere bacteria. To this end, we examined the extent to which bacterial traits associated with pathogen inhibition coincide with resistance to protist predation. We investigated the resistance to predation of a collection of Pseudomonas spp. against a range of representative soil protists covering three eukaryotic supergroups. We then examined whether patterns of resistance to predation could be explained by functional traits related to plant growth promotion, disease suppression and root colonization success. We observed a strong correlation between resistance to predation and phytopathogen inhibition. In addition, our analysis highlighted an important contribution of lytic enzymes and motility traits to resist predation by protists. We conclude that the widespread occurrence of plant-protective traits in the rhizosphere microbiome may be driven by the evolutionary pressure for resistance against predation by protists. Protists may therefore act as microbiome regulators promoting native bacteria involved in plant protection against diseases. |
| first_indexed | 2024-12-14T01:39:15Z |
| format | Article |
| id | doaj.art-500d93f99d2e4ba3a6e7582d37538577 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-12-14T01:39:15Z |
| publishDate | 2020-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-500d93f99d2e4ba3a6e7582d375385772022-12-21T23:21:48ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2020-12-011110.3389/fmicb.2020.614194614194Biocontrol Traits Correlate With Resistance to Predation by Protists in Soil PseudomonadsNathalie Amacker0Zhilei Gao1Betina C. Agaras2Ellen Latz3George A. Kowalchuk4Claudio F. Valverde5Alexandre Jousset6Simone Weidner7Simone Weidner8Ecology and Biodiversity Group, Institute of Environmental Biology, University of Utrecht, Utrecht, NetherlandsEcology and Biodiversity Group, Institute of Environmental Biology, University of Utrecht, Utrecht, NetherlandsLaboratorio de Fisiología y Genética de Bacterias Beneficiosas para Plantas, Departamento de Ciencia y Tecnología, Centro de Bioquímica y Microbiología del Suelo, Universidad Nacional de Quilmes, Buenos Aires, ArgentinaGerman Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Leipzig, GermanyEcology and Biodiversity Group, Institute of Environmental Biology, University of Utrecht, Utrecht, NetherlandsLaboratorio de Fisiología y Genética de Bacterias Beneficiosas para Plantas, Departamento de Ciencia y Tecnología, Centro de Bioquímica y Microbiología del Suelo, Universidad Nacional de Quilmes, Buenos Aires, ArgentinaEcology and Biodiversity Group, Institute of Environmental Biology, University of Utrecht, Utrecht, NetherlandsEcology and Biodiversity Group, Institute of Environmental Biology, University of Utrecht, Utrecht, NetherlandsDepartment of Microbial Ecology, Netherlands Institute of Ecology, Wageningen, NetherlandsRoot-colonizing bacteria can support plant growth and help fend off pathogens. It is clear that such bacteria benefit from plant-derived carbon, but it remains ambiguous why they invest in plant-beneficial traits. We suggest that selection via protist predation contributes to recruitment of plant-beneficial traits in rhizosphere bacteria. To this end, we examined the extent to which bacterial traits associated with pathogen inhibition coincide with resistance to protist predation. We investigated the resistance to predation of a collection of Pseudomonas spp. against a range of representative soil protists covering three eukaryotic supergroups. We then examined whether patterns of resistance to predation could be explained by functional traits related to plant growth promotion, disease suppression and root colonization success. We observed a strong correlation between resistance to predation and phytopathogen inhibition. In addition, our analysis highlighted an important contribution of lytic enzymes and motility traits to resist predation by protists. We conclude that the widespread occurrence of plant-protective traits in the rhizosphere microbiome may be driven by the evolutionary pressure for resistance against predation by protists. Protists may therefore act as microbiome regulators promoting native bacteria involved in plant protection against diseases.https://www.frontiersin.org/articles/10.3389/fmicb.2020.614194/fullrhizobacteriaPGPRprotozoamultitrophic interactionsbiocontrol |
| spellingShingle | Nathalie Amacker Zhilei Gao Betina C. Agaras Ellen Latz George A. Kowalchuk Claudio F. Valverde Alexandre Jousset Simone Weidner Simone Weidner Biocontrol Traits Correlate With Resistance to Predation by Protists in Soil Pseudomonads Frontiers in Microbiology rhizobacteria PGPR protozoa multitrophic interactions biocontrol |
| title | Biocontrol Traits Correlate With Resistance to Predation by Protists in Soil Pseudomonads |
| title_full | Biocontrol Traits Correlate With Resistance to Predation by Protists in Soil Pseudomonads |
| title_fullStr | Biocontrol Traits Correlate With Resistance to Predation by Protists in Soil Pseudomonads |
| title_full_unstemmed | Biocontrol Traits Correlate With Resistance to Predation by Protists in Soil Pseudomonads |
| title_short | Biocontrol Traits Correlate With Resistance to Predation by Protists in Soil Pseudomonads |
| title_sort | biocontrol traits correlate with resistance to predation by protists in soil pseudomonads |
| topic | rhizobacteria PGPR protozoa multitrophic interactions biocontrol |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2020.614194/full |
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