Ecological co-occurrence and soil physicochemical factors drive the archaeal community in Amazonian soils.

Autor: de Chaves MG; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo (USP), Piracicaba, SP, Brazil., Merloti LF; College of Agriculture, Luiz de Queiroz, University of São Paulo (USP), Piracicaba, SP, Brazil., de Souza LF; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo (USP), Piracicaba, SP, Brazil., Américo-Pinheiro JHP; Graduate Program in Environmental Sciences, University Brazil, Fernandópolis, SP, Brazil., Kozusny-Andreani DI; Graduate Program in Environmental Sciences, University Brazil, Fernandópolis, SP, Brazil., de Souza Moreira FM; Department of Soil Sciences, Federal University of Lavras, Lavras, MG, Brazil., Tsai SM; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo (USP), Piracicaba, SP, Brazil., Navarrete AA; Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo (USP), Piracicaba, SP, Brazil. acacionavarrete@gmail.com.; Graduate Program in Environmental Sciences, University Brazil, Fernandópolis, SP, Brazil. acacionavarrete@gmail.com.
Jazyk: angličtina
Zdroj: Archives of microbiology [Arch Microbiol] 2022 Dec 17; Vol. 205 (1), pp. 31. Date of Electronic Publication: 2022 Dec 17.
DOI: 10.1007/s00203-022-03372-0
Abstrakt: We evaluated the co-occurrence of archaeal taxonomic groups and soil physicochemical characteristics in relation to the structuring of the archaeal community in Amazonian soil under different land use systems. Soil samples were collected in primary forest (PF), secondary forest (SF), agricultural systems (AG) and cattle pastures (PA). Archaeal community composition was revealed based on high-throughput amplicon sequencing of the 16S rRNA gene. The results revealed co-occurrence of archaeal classes, with two groups formed: Thaumarchaeota classes, including South Africa Gold Mine-Group 1 (SAGMG-1), Crenarchaeotic group (SCG) and Crenarchaeota candidate division YNPFFA, with predominance in PF and SF; and Bathyarchaeota_unclassified, Methanomicrobia and Methanobacteria (Euryarchaeota) with the FHMa11 terrestrial group, with predominance in PA. The number of co-occurrences between groups was lower in SF, AG and PA (approximately 30%) than in PF. The qPCR analysis revealed that PF also had the largest number of archaeal representatives. Soil texture may be a limiting factor of interactions between groups since the most representative groups, SAGMG-1 and the SCG (over 20% in all sites), were positively associated with coarse sand, the soil factor most correlated with the groups (33% of the total). These results suggest that interactions between archaeal classes belonging to different phyla may be dependent on the number of individuals in the soil environment. In this context, differences in soil physical structure among the land use systems can reduce the representatives of key groups and consequently the co-occurrence of Archaea, which could compromise the natural dynamics of this complex environment.
(© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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