Fecha/hora: 16/06/2024 03:33:01

Biblioteca(s): | INIA Treinta y Tres.
Fecha corriente: | 11/12/2020
Fecha de la última actualización: | 16/12/2020
Autoria: | GARAYCOCHEA, S.; ROMERO, H.; BEYHAUT, E.; ANDREW, L.; ALTIER, N.
Afiliación: | SILVIA RAQUEL GARAYCOCHEA SOLSONA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; HÉCTOR ROMERO, Laboratorio de Organización y Evolución de Genoma - Unidad de Genómica Evolutiva, Departamento de Ecología y Evolución CURE Maldonado - UDELAR.; ELENA BEYHAUT GUTIERREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; L. ANDREW, Deparment of Sustainable Agricultrual Science. Rothamsted Research, UK.; NORA ADRIANA ALTIER MANZINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Soil structure, nutrient status and water holding capacity shape uruguayan grassland prokaryotic communities.
Año de publicación: | 2020
Fuente/Imprenta: | FEMS Microbiology Ecology, December 2020, v. 96, no. 12, fiaa207. DOI: https://doi.org/10.1093/femsec/fiaa207
Páginas: | 32 p.
DOI: | 10.1093/femsec/fiaa207
Idioma: | Inglés
Notas: | Article history: Received: 13 February 2020 // Accepted: 08 October 2020 // Published: 10 October 2020.
Contenido: | Soil microbial communities play critical roles in maintaining natural ecosystems such as the Campos biome grasslands of southern South America. These grasslands are characterized by a high diversity of soils, low available phosphorus (P) and limited water holding capacity. This work aimed to describe prokaryotic communities associated with different soil types and to examine the relationship among these soil communities, the parent material and the soil nutrient status. Five Uruguayan soils with different parent material and nutrient status, under natural grasslands, were compared. The structure and diversity of prokaryotic communities were characterized by sequencing 16S rRNA gene amplicons. Proteobacteria, Actinobacteria, Firmicutes,Verrucomicrobia, Acidobacteria, Planctomycetes and Chloroflexi were the predominant phyla. Ordination based on several distance measures was able to discriminate clearly between communities associated with different soil types. Edge-PCA phylogeny-sensitive ordination and differential relative abundance analyses identified Archaea and the bacterial phyla Firmicutes, Acidobacteria, Actinobacteria and Verrucomicrobia as those with significant differences among soil types. Canonical analysis of principal coordinates identified porosity, clay content, available P, soil organic carbon and water holding capacity as the main variables contributing to determine the characteristic prokaryotic communities of each soil type.
Palabras-Clave: | CAMPOS BIOME; NATURAL GRASSLANDS; PROKARYOTIC COMMUNITIES; SOIL; SOIL NUTRIENTS; SOIL PHYSICOCHEMICAL VARIABLES; SOIL STRUCTURE.
Categoría del tema: | P30 Ciencia del suelo y manejo del suelo
Registro original: | INIA Treinta y Tres (TT)
Ejemplares: | TT - (103190-1) - PXI - AP - DD - PP/FEMS Microbiology Ecology/2020 -  -  - DIS