Assessment of soil bacterial communities in integrated crop production systems within the Amazon Biome, Brazil: a comparative study.
| Title: | Assessment of soil bacterial communities in integrated crop production systems within the Amazon Biome, Brazil: a comparative study. |
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| Authors: | do Carmo KB; Programa de pós graduação em Agricultura Tropical, Universidade Federal de Mato Grosso (UFMT), Campus Central, Cuiabá, MT, 78060-900, Brazil.; Dias R; Microbiology & Cell Science Department, University of Florida (UF), Gainesville, FL, 110-700, USA.; de Quadros PD; Departamento de Solos e Bioquímica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, 90410-000, Brazil.; Berber GCM; Programa de pós graduação em Ciências Ambientais, Universidade Federal de Mato Grosso (UFMT), Campus Sinop, Sinop, MT, 78550-000, Brazil.; Bourscheidt MLB; Curso de graduação em Zootecnia, Universidade Federal de Mato Grosso (UFMT), Campus Sinop, Sinop, MT, 78550-000, Brazil.; de Farias Neto AL; Embrapa Agrossilvipastoril - Empresa Brasileira de Pesquisa Agropecuária; endereço atual Embrapa Trigo, Passo Fundo, RS, 99050-970, Brazil.; Dos Santos Weber OL; Programa de pós graduação em Agricultura Tropical, Universidade Federal de Mato Grosso (UFMT), Campus Central, Cuiabá, MT, 78060-900, Brazil.; Triplett EW; Microbiology & Cell Science Department, University of Florida (UF), Gainesville, FL, 110-700, USA.; Ferreira A; Programa de pós graduação em Agricultura Tropical, Universidade Federal de Mato Grosso (UFMT), Campus Central, Cuiabá, MT, 78060-900, Brazil. anderson.ferreira@embrapa.br. |
| Source: | Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] [Braz J Microbiol] 2024 Sep; Vol. 55 (3), pp. 2815-2825. Date of Electronic Publication: 2024 May 02. |
| Publication Type: | Comparative Study; Journal Article |
| Language: | English |
| Journal Info: | Publisher: Springer International Publishing Country of Publication: Brazil NLM ID: 101095924 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1678-4405 (Electronic) Linking ISSN: 15178382 NLM ISO Abbreviation: Braz J Microbiol Subsets: MEDLINE |
| Imprint Name(s): | Publication: 2019- : Switzerland, AG : Springer International Publishing; Original Publication: Rio de Janeiro, RJ, Brasil : Sociedade Brasileira de Microbiologia |
| MeSH Terms: | Bacteria*/classification ; Bacteria*/genetics ; Bacteria*/isolation & purification ; Biodiversity* ; Soil Microbiology*; Crop Production/methods ; Crops, Agricultural/microbiology ; Microbiota/genetics ; RNA, Ribosomal, 16S/genetics ; Brazil ; Forests ; Phylogeny ; Seasons |
| Abstract: | Integrated production systems have been proposed as alternative to sustainable land use. However, information regarding bacterial community structure and diversity in soils of integrated Crop-Livestock-Forest systems remains unknown. We hypothesize that these integrated production systems, with their ecological intensification, can modulate the soil bacterial communities. However, Yet, it remains unclear whether the modulation of bacterial biodiversity is solely attributable to the complexity of root exudates or if seasonal climatic events also play a contributory role. The objective of this study is to evaluate the impact of monoculture and integrated production systems on bacterial soil communities in the Amazon Biome, Brazil. Three monoculture systems, each with a single crop over time and space (Eucalyptus (E), Crop Soybean (C), Pasture (P)), and three integrated systems with multiple crops over time and space (ECI, PI, ECPI) were evaluated, along with a Native forest serving as a reference area. Soil samples were collected at a depth of 0-10 cm during both the wet and dry seasons. Bacterial composition was determined using Illumina high-throughput sequencing of the 16 S rRNA gene. The sequencing results revealed the highest abundance classified under the phyla Firmicutes, Actinobacteria, and Proteobacteria. The Firmicutes correlated with the Crop in the rainy period and in the dry only ECPI and Forest. For five classes corresponding to the three phyla, the Crop stood out with the greatest fluctuations in their relative abundance compared to other production systems. In cluster analysis by genus during the rainy season, only Forest and ECPI showed no similarity with the other production systems. However, in the dry season, both were grouped with Forest and EPI. Therefore, the bacterial community in integrated systems proved to be sensitive to management practices, even with only two years of use. ECPI demonstrated the greatest similarity in bacterial structure to the Native forest, despite just two years of experimental deployment. Crop exhibited fluctuations in relative abundance in both seasons, indicating an unsustainable production system with changes in soil microbial composition. These findings support our hypothesis that integrated production systems and their ecological intensification, as exemplified by ECPI, can indeed modulate soil bacterial communities.; (© 2024. The Author(s) under exclusive licence to Sociedade Brasileira de Microbiologia.) |
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| Contributed Indexing: | Keywords: 16S rRNA sequencing; Illumina; Integrated crop-livestock-forest; Tropical forest biodiversity |
| Substance Nomenclature: | 0 (RNA, Ribosomal, 16S) |
| Entry Date(s): | Date Created: 20240502 Date Completed: 20240916 Latest Revision: 20250503 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC11405747 |
| DOI: | 10.1007/s42770-024-01352-8 |
| PMID: | 38696039 |
| Database: | MEDLINE |
Comparative Study; Journal Article