Resilience of the resident soil microbiome to organic and inorganic amendment disturbances and to temporary bacterial invasion

Autor(es)

Lourenco, Kesia Silva ^{[1, 2, 3]} ; Suleiman, Afnan K. A. ^[2] ; Pijl, A. ^[2] ; van Veen, J. A. ^{[1, 2]} ; Cantarella, H. ^[3] ; Kuramae, E. E. ^[2]

Afiliação do(s) autor(es)

^[1] Leiden Univ, Inst Biol Leiden, Leiden - Netherlands

^[2] Netherlands Inst Ecol NIOO, Microbial Ecol Dept, Droevendaalsesteeg 10, NL-6708 PB Wageningen - Netherlands

^[3] Agron Inst Campinas IAC, Soils & Environm Resources Ctr, Av Barao de Itapura 1481, BR-13020902 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MICROBIOME; v. 6, AUG 13 2018.
• Citações Web of Science: 7

Resumo

Background: Vinasse, a by-product of sugarcane ethanol production, is recycled by sugarcane plantations as a fertilizer due to its rich nutrient content. However, the impacts of the chemical and microbial composition of vinasse on soil microbiome dynamics are unknown. Here, we evaluate the recovery of the native soil microbiome after multiple disturbances caused by the application of organic vinasse residue, inorganic nitrogen, or a combination of both during the sugarcane crop-growing season (389 days). Additionally, we evaluated the resistance of the resident soil microbial community to the vinasse microbiome. Results: Vinasse applied alone or 30 days prior to N resulted in similar changes in the soil microbial community. Furthermore, the impact of the application of vinasse together with N fertilizer on the soil microbial community differed from that of N fertilizer alone. Organic vinasse is a source of microbes, nutrients, and organic matter, and the combination of these factors drove the changes in the resident soil microbial community. However, these changes were restricted to a short period of time due to the capacity of the soil community to recover. The invasive bacteria present in the vinasse microbiome were unable to survive in the soil conditions and disappeared after 31 days, with the exception of the Acetobacteraceae (native in the soil) and Lactobacillaceae families. Conclusion: Our analysis showed that the resident soil microbial community was not resistant to vinasse and inorganic N application but was highly resilient. (AU)

• Processo FAPESP: 13/50365-5 - Microbial networks in control of greenhouse gases emissions in biobased agriculture - MiniBag
• Beneficiário: Heitor Cantarella
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular
• Processo FAPESP: 13/12716-0 - Fluxo dos gases do efeito estufa (co2, n2o e ch4) a partir de solos com cana-de-açúcar em função da adubação com vinhaça concentrada e vinhaça não concentrada em diferentes epocas de aplicação.
• Beneficiário: Késia Silva Lourenço
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/24141-5 - Estudo das redes microbianas (networks) que controlam a emissão de N2O, CO2 e CH4 do solo com cana-de-açúcar
• Beneficiário: Késia Silva Lourenço
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado