Land-use change and soil type are drivers of fungal and archaeal communities in the Pampa biome

• Published in: World journal of microbiology & biotechnology Vol. 29; no. 2; pp. 223 - 233
• Main Authors: Lupatini, Manoeli, Jacques, Rodrigo Josemar Seminoti, Antoniolli, Zaida Inês, Suleiman, Afnan Khalil Ahmad, Fulthorpe, Roberta R., Roesch, Luiz Fernando Würdig
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01-02-2013; Springer Nature B.V
• Subjects: Acacia; Alluvial soils; Analysis; Applied Microbiology; Archaea - classification; Archaea - genetics; Archaea - isolation & purification; Biochemistry; Biodiversity; Biomass; Biomedical and Life Sciences; Biotechnology; Brazil; Citrullus lanatus; Community structure; Ecosystem; Ecosystems; Environmental Engineering/Biotechnology; Eucalyptus; Fungi - classification; Fungi - genetics; Fungi - isolation & purification; Grasslands; Hypotheses; Land use; Life Sciences; Metabolism; Microbial activity; Microbiology; Microorganisms; Original Paper; Plantations; Soil - chemistry; Soil Microbiology; Soil microorganisms; Soil structure; Soil types; Soils; Soybeans; Studies; Trees - microbiology; Vegetation; Argentina, Pampa; Metabolic quotient; Soil microbial core; Microbial biomass; Intergenic spacer analysis
• ISSN: 0959-3993; 1573-0972
• DOI: 10.1007/s11274-012-1174-3

The current study aimed to test the hypothesis that both land-use change and soil type are responsible for the major changes in the fungal and archaeal community structure and functioning of the soil microbial community in Brazilian Pampa biome. Soil samples were collected at sites with different land-uses (native grassland, native forest,
Eucalyptus
and
Acacia
plantation, soybean and watermelon field) and in a typical toposequence in Pampa biome formed by Paleudult, Albaqualf and alluvial soils. The structure of soil microbial community (archaeal and fungal) was evaluated by ribosomal intergenic spacer analysis and soil functional capabilities were measured by microbial biomass carbon and metabolic quotient. We detected different patterns in microbial community driven by land-use change and soil type, showing that both factors are significant drivers of fungal and archaeal community structure and biomass and microbial activity. Fungal community structure was more affected by land-use and archaeal community was more affected by soil type. Irrespective of the land-use or soil type, a large percentage of operational taxonomic unit were shared among the soils. We accepted the hypothesis that both land-use change and soil type are drivers of archaeal and fungal community structure and soil functional capabilities. Moreover, we also suggest the existence of a soil microbial core.