Enzimas Extracelulares de Solos de Cerrado como Bioindicadores de Qualidade em Áreas Agricultáveis em Goiás, Brasil

Zago, Leciana de Menezes Sousa; Oliveira, Rogério Nunes; Bombonatto, Anne Kethlen Gonçalves; Moreira, Letícia Mikaelly de Oliveira; Melo, Erik Nelson de Paiva; Caramori, Samantha Salomão

doi:10.21664/2238-8869.2016v5i1.p104-127

Cited by 5 publications

(8 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This behavior can be attributed to the high TOC values observed in these systems. The higher the organic carbon content is, the higher the β-glucosidase enzyme values (Zago et al, 2016). In addition, the values of β-glucosidase in the IPF and PAS systems might be strongly related to the presence of grasses, since these plants usually have a dense root system that is mostly formed by fast-decomposing thin roots.…”

Section: Resultsmentioning

confidence: 99%

Soil biological attributes in monoculture and integrated systems in the Cerrado region of Piauí State, Brazil

et al. 2021

View full text Add to dashboard Cite

The implementation of integrated agricultural production systems is considered a promising strategy for sustainable agricultural intensification in Brazil. This study aimed to evaluate the effects of different monoculture and integrated production systems on the microbiological attributes and organic carbon of soil from the Cerrado region in Piauí, Brazil. Soil samples were collected from the 0.0-0.10-m layer in the following systems: no-tillage (PD), pasture (PAS), exclusive eucalyptus cultivation (CEE), integrated livestock-forest system (IPF) and a native Cerrado (CN) area, which was used as reference. Total organic carbon (TOC) and nitrogen (NT) contents, microbial biomass carbon (CMIC), microbial respiration (MR), microbial quotient (qMIC), metabolic quotient (qCO2), as well as the activities of the hydrolysis of fluorescein diacetate (FDA), acid phosphatase, β-glucosidase and urease enzymes were evaluated. High TOC contents were found in the CEE, IPF and PAS systems, and high CMIC and qMIC values were found in the CN and CEE systems. The variables MR, qCO2 and enzymatic activity varied as a function of the management systems. The IPF and CEE systems caused improvements in the soil attributes, with increases in organic carbon and microbial biomass. The IPF integrated production system promoted improvements in the microbiological indicators of soil quality and was considered an environmentally sustainable agricultural production system. The transition from CN to agricultural areas caused changes in the soil microbiological indicators, which were perceived several years after anthropogenic intervention, indicating that even with the adoption of conservation systems, it was not possible to reestablish the soil microbial biomass.

show abstract

Section: Resultsmentioning

confidence: 99%

Soil biological attributes in monoculture and integrated systems in the Cerrado region of Piauí State, Brazil

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Hydrolases (EC 3.-) and oxidoreductases (EC 1.-) are the most studied classes of enzymes when evaluating SOM transformation and nutrient cycling processes [26,27]. These transformations of SOM and nutrient cycling enable the assimilation of simple molecules by microorganisms and plants through the roots [28]. Enzymes recognized in the literature for participating in nutrient cycling and SOM transformation that were found in the soils in this study are listed in Table 4.…”

Section: Functional Similarity Of Enzymes Of Soil Organisms During Re...mentioning

confidence: 95%

“…In the present study, important hydrolases were found, such as cellulose hydrolysis (EC 3.2.1.4) in R4 and NS, and glycosides hydrolysis such as beta-glucosidase (EC 3.2.1.21) in NS and alpha-glucosidase (EC 3.2.1.20) in R4. The first randomly hydrolyzes the cellulose molecule, releasing oligosaccharides of varying degrees of polymerization, whereas the enzymes beta-glucosidase (EC 3.2.1.21) and alpha-glucosidase (EC 3.2.1.20) break down low-molecular-mass oligosaccharides to produce monosaccharides, the main energy source for soil microorganisms [28,38]. Thus, we can observe in the R4 and NS soils enzymes involved in the complete transformation of cellulose, an organic compound that contains a relevant C stock necessary for the growth and survival of soil microorganisms [39].…”

Section: Protein Functional Analysis In the Community Of Soil Organismsmentioning

confidence: 99%

Soil Metaproteomics as a Tool for Environmental Monitoring of Minelands

Trindade

Gastauer

Ramos

et al. 2021

Forests

View full text Add to dashboard Cite

Opencast mining drastically alters the landscape due to complete vegetation suppression and removal of topsoil layers. Precise indicators able to address incremental changes in soil quality are necessary to monitor and evaluate mineland rehabilitation projects. For this purpose, metaproteomics may be a useful tool due to its capacity to shed light on both taxonomic and functional overviews of soil biodiversity, allowing the linkage between proteins found in soil and ecosystem functioning. We investigated bacterial proteins and peptide abundance of three different mineland rehabilitation stages and compared it with a non-rehabilitated site and a native area (evergreen dense forest) in the eastern Amazon. The total amount of identified soil proteins was significantly higher in the rehabilitating and native soils than in the non-rehabilitated site. Regarding soil bacterial composition, the intermediate and advanced sites were shown to be most similar to native soil. Cyanobacteria and Firmicutes phyla are abundant in the early stages of environmental rehabilitation, while Proteobacteria population dominates the later stages. Enzyme abundances and function in the three rehabilitation stages were more similar to those found in the native soil, and the higher accumulation of many hydrolases and oxidoreductases reflects the improvement of soil biological activity in the rehabilitating sites when compared to the non-rehabilitated areas. Moreover, critical ecological processes, such as carbon and nitrogen cycling, seem to return to the soil in short periods after the start of rehabilitation activities (i.e., 4 years). Metaproteomics revealed that the biochemical processes that occur belowground can be followed throughout rehabilitation stages, and the enzymes shown here can be used as targets for environmental monitoring of mineland rehabilitation projects.

show abstract

“…O potencial de transformação de nutrientes ou de fontes de energia específicas pode ser acessado ao se examinar essas enzimas do solo (MIRALLES et al, 2012). Estas transformações da MOS possibilitam a assimilação de moléculas simples pelos microrganismos e pelas plantas através das raízes (ZAGO et al, 2016).…”

Section: Enzimas Do Solo Ciclagem De C E Atividade Microbianaunclassified

“…Tabela 2 -Exemplos de oxidoredutases e hidrolases identificadas na metaproteômica de RAD Bastida et al (2014),Zago et al (2016). eAdetunji et al (2017).As oxidoredutases 1.2.1.12, 1.1.1.40, 1.1.1.42 são espécies de desidrogenases, suas atividades catalíticas de oxidação da matéria orgânica ocorrem no interior celular participando de vias metabólicas.…”

unclassified

Metaproteômica comparativa de solos de um gradiente temporal de recuperação

Trindade¹,

Fonseca²,

Gastauer³

et al. 2019

View full text Add to dashboard Cite

Enzimas Extracelulares de Solos de Cerrado como Bioindicadores de Qualidade em Áreas Agricultáveis em Goiás, Brasil

Cited by 5 publications

References 43 publications

Soil biological attributes in monoculture and integrated systems in the Cerrado region of Piauí State, Brazil

Soil biological attributes in monoculture and integrated systems in the Cerrado region of Piauí State, Brazil

Soil Metaproteomics as a Tool for Environmental Monitoring of Minelands

Metaproteômica comparativa de solos de um gradiente temporal de recuperação

Contact Info

Product

Resources

About