Land-use change and soil type are drivers of fungal and archaeal communities in the Pampa biome.
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.
Departamento de Solos, Universidade Federal de Santa Maria, Av. Roraima 1000, Santa Maria, RS 97105900, Brazil.
Manoeli
M
Lupatini
Rodrigo Josemar Seminoti
RJ
Jacques
Zaida Inês
ZI
Antoniolli
Afnan Khalil Ahmad
AK
Suleiman
Roberta R
RR
Fulthorpe
Luiz Fernando Würdig
LF
Roesch
D001105:Archaea / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D044822:Biodiversity; D001938:Brazil; D017753:Ecosystem; D005658:Fungi / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D012987:Soil / Q000737:chemistry*; D012988:Soil Microbiology; D014197:Trees / Q000382:microbiology*
D012987:Soil