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dc.contributor.authorRedondo, Miguel Ángel
dc.contributor.authorBoberg, Johanna
dc.contributor.authorStenlid, Jan
dc.contributor.authorOliva Palau, Jonàs
dc.description.abstractDiversity of microbial organisms is linked to global climatic gradients. The genus Phytophthora includes both aquatic and terrestrial plant pathogenic species that display a large variation of functional traits. The extent to which the physical environment (water or soil) modulates the interaction of microorganisms with climate is unknown. Here, we explored the main environmental drivers of diversity and functional trait composition of Phytophthora communities. Communities were obtained by a novel metabarcoding setup based on PacBio sequencing of river filtrates in 96 river sites along a geographical gradient. Species were classified as terrestrial or aquatic based on their phylogenetic clade. Overall, terrestrial and aquatic species showed contrasting patterns of diversity. For terrestrial species, precipitation was a stronger driver than temperature, and diversity and functional diversity decreased with decreasing temperature and precipitation. In cold and dry areas, the dominant species formed resistant structures and had a low optimum temperature. By contrast, for aquatic species, temperature and water chemistry were the strongest drivers, and diversity increased with decreasing temperature and precipitation. Within the same area, environmental filtering affected terrestrial species more strongly than aquatic species (20% versus 3% of the studied communities, respectively). Our results highlight the importance of functional traits and the physical environment in which microorganisms develop their life cycle when predicting their distribution under changing climatic conditions. Temperature and rainfall may be buffered differently by water and soil, and thus pose contrasting constrains to microbial assemblies.ca_ES
dc.description.sponsorshipThis research was funded by the European BiodivERsA project RESIPATH and the Swedish FORMAS project 215- 2012-1255. We acknowledge SciLifeLab in Uppsala for the sequencing, and the kind help of Ines Prieto Ruiz during the field work, and Silvia Giménez Santamarina during the laboratory work. We acknowledge the input of three anonymous referees who made valuable comments on an earlier version of this manuscript.ca_ES
dc.publisherSpringer Natureca_ES
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofISME Journal, 2018, vol. 12, p. 2967-2980ca_ES
dc.rightscc-by, (c) Redondo et al., 2018ca_ES
dc.titleContrasting distribution patterns between aquatic and terrestrial Phytophthora species along a climatic gradient are linked to functional traitsca_ES

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cc-by, (c) Redondo et al., 2018
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