Contrasting distribution patterns between aquatic and terrestrial Phytophthora species along a climatic gradient are linked to functional traits
Fecha de publicación2018
MetadatosMostrar el registro completo del ítem
Diversity 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.
Es parte deISME Journal, 2018, vol. 12, p. 2967-2980
Proyectos de investigación europeos
El ítem tiene asociados los siguientes ficheros de licencia:
Excepto si se señala otra cosa, la licencia del ítem se describe comocc-by, (c) Redondo et al., 2018
Showing items related by title, author, creator and subject.
Halophytophthora fluviatilis Pathogenicity and Distribution along a Mediterranean-Subalpine Gradient Caballol, Maria; Štraus, Dora; Macià, Héctor; Ramis, Xavier; Redondo, Miguel Ángel; Oliva Palau, Jonàs (MDPI, 2021-02-03)Halophytophthora species have been traditionally regarded as brackish water oomycetes; however, recent reports in inland freshwater call for a better understanding of their ecology and possible pathogenicity. We studied ...
Patterns of genetic diversification in the invasive hybrid plant pathogen Phytophthora x alni and its parental species P. uniformis Mizeriene, Goda; Cerny, Karel; Zyka, Vladimir; Bakonyi, József; Nagy, Zoltán Á.; Oliva Palau, Jonàs; Redondo, Miguel Ángel; Corcobado, Tamara; Martín-García, Jorge; Prospero, Simone (The American Phytopathological Society, 2020-07-07)In pathogenic fungi and oomycetes, interspecific hybridization may lead to the formation of new species having a greater impact on natural ecosystems than the parental species. From the early 1990s, a severe alder (Alnus ...
Redondo, Miguel Ángel; Berlin, Anna; Boberg, Johanna; Oliva Palau, Jonàs (Oxford University Press, 2020-05-01)Predicting fungal community assembly is partly limited by our understanding of the factors driving the composition of deposited spores. We studied the relative contribution of vegetation, geographical distance, seasonality ...