Artículo
Crop monoculture rather than agriculture reduces the spatial turnover of soil bacterial communities at a regional scale
Figuerola, Eva Lucia Margarita
; Guerrero, Leandro Demián
; Türkovsky, Dominique; Wall, Luis Gabriel
; Erijman, Leonardo
Fecha de publicación:
02/06/2014
Editorial:
Wiley
Revista:
Environmental Microbiology
ISSN:
1462-2912
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The goal of this study was to investigate the spatial turnover of soil bacterial communities in response to environmental changes introduced by the practices of soybean monoculture or crop rotations, relative to grassland soils. Amplicon sequencing of the 16S rRNA gene was used to analyze bacterial diversity in producer fields through three successive cropping cycles within one and a half years, across a regional scale of 400 km at the Argentinean Pampas. Unlike local diversity, which was not significantly affected by land use type, agricultural management had a strong influence on β-diversity patterns. Distributions of pairwise distances between all soils samples under soybean monoculture had significantly lower β-diversity and narrower breadth compared to distributions of pairwise distances between soils managed with crop rotation. Interestingly, good agricultural practices had similar degree of β-diversity as natural grasslands. The higher phylogenetic relatedness of bacterial communities in soils under monoculture across the region were likely determined by the observed loss of endemic species, and affected mostly to phyla with low regional diversity, such as Acidobacteria, Verrucomicrobia and the candidates phyla SPAM and WS3. These results suggest that the implementation of good agricultural practices, including crop rotation, may be critical for the long-term conservation of soil biodiversity.
Palabras clave:
Bacteria
,
Microbial Communities
,
Microbial Ecology
,
Environmental Signals
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INGEBI)
Articulos de INST.DE INVEST.EN ING.GENETICA Y BIOL.MOLECULAR "DR. HECTOR N TORRES"
Articulos de INST.DE INVEST.EN ING.GENETICA Y BIOL.MOLECULAR "DR. HECTOR N TORRES"
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Figuerola, Eva Lucia Margarita; Guerrero, Leandro Demián; Türkovsky, Dominique; Wall, Luis Gabriel; Erijman, Leonardo; Crop monoculture rather than agriculture reduces the spatial turnover of soil bacterial communities at a regional scale; Wiley; Environmental Microbiology; 17; 3; 2-6-2014; 678-688
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