Microbial Aggregation
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. Soil quality indicators after conversion of “murundu” fields into no-tillage cropping in the Brazilian Cerrado
Resumo: O objetivo deste trabalho foi avaliar as alterações na qualidade do solo devido a diferentes tempos de adoção do sistema plantio direto em campos de murundus convertidos para agricultura, bem como identificar quais seriam os melhores indicadores para explicar essas alterações. O estudo foi realizado em Plintossolo Háplico, no Município de Por
Pesq. agropec. bras.. Publicado em: 04/07/2019
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2. Physical, Chemical, and Microbiological Properties of Soil under Different Plant Covers in the Seridó Desertification Region in the Brazilian Semiarid
ABSTRACT The Seridó Desertification Region is a result of inadequate management of the native Caatinga vegetation, which generated degraded areas with little or no capacity for plant production. The area has experienced a succession of different land uses, but little is known about the impact of these changes. The present study tested the hypothesis that th
Rev. Bras. Ciênc. Solo. Publicado em: 28/03/2019
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3. Identification of Anti-Inflammatory and Anti-Hypertensive Drugs as Inhibitors of Bacterial Diguanylate Cyclases
Biofilms are widely present in many human chronic infections, often more resistant to treatment with antibiotics. Bacterial diguanylate cyclases (DGCs) synthesize cyclic dimeric guanosine monophosphate (c-di-GMP) from two guanosine-5'-triphosphate (GTP) molecules. c-di-GMP is a central second messenger controlling biofilm formation, turning this class of enz
J. Braz. Chem. Soc.. Publicado em: 2018-02
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4. Soil health: looking for suitable indicators. What should be considered to assess the effects of use and management on soil health?
Soil Health refers to the ecological equilibrium and the functionality of a soil and its capacity to maintain a well balanced ecosystem with high biodiversity above and below surface, and productivity. To understand and use soil health as a tool for sustainability, physical, chemical, and biological properties must be employed to verify which respond to the
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-08
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5. Bacterial exopolysaccharide and biofilm formation stimulate chickpea growth and soil aggregation under salt stress
To compensate for stress imposed by salinity, biofilm formation and exopolysaccharide production are significant strategies of salt tolerant bacteria to assist metabolism. We hypothesized that two previously isolated salt-tolerant strains Halomonas variabilis (HT1) and Planococcus rifietoensis (RT4) have an ability to improve plant growth, These strains can
Braz. J. Microbiol.. Publicado em: 2012-09
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6. Are we ready for caries prevention through bacteriotherapy?
Recent insights in medical science indicate that human biofilms play an important role in health and well-being, and have put microbiota modulation through bacteriotherapy into focus. In dentistry, bacterial interference with probiotic bacteria to support the stability and diversity of oral biofilms has gained similar interest. Investigations in vitro into m
Braz. oral res.. Publicado em: 2012
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7. Análise da atividade antimicrobiana dos óleos de dopaíba (C opaifera officinalis ) e da melaleuca ( Melaleuca alternifolia ) sobre Fusobacterium nucleatum e Por phyromonas gingivalis: determinação das concentrações inibitórias e bactericidas mínimas e efeito de concentrações subinibitórias sobre a agregação / Antimicrobial activity of copaiba (Copaifera officinalis) and melaleuca (Melaleuca alternifolia) oils on Porphyromonas gingivalis and Fusobacterium nucleatum: determination of minimum inhibitory and bactericidal concentrations and subinibitory effect on the aggregation
The oral cavity is a complex microbial habitat that has more than 500 bacterial species as components of the microbiota. Periodontal health is established when there is equilibrium between pathogens and host. The chlorhexidine digluconate is one of the most commonly used oral antibiotics, however, this substance has been associated with some undesirable side
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/08/2011
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8. Tratamento com lodo aeróbio granular de efluente de fábrica de papel / Aerobic granular sludge treatment of paper mill effluents
The activated sludge process is widely used for the treatment of industrial effluents, achieving high rates of organic matter removal. Nevertheless, the separation of biological sludge in secondary clarifiers can be a serious problem of this process due to the poor floc formation, causing solids losses and, consequently, deterioration of treated effluent qua
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2011
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9. Seqüestro de carbono e alterações bioquímicas da matéria orgânica de solos cultivados com eucalipto / Carbon sequestration and biochemical changes in organic matter of soils cultivated with eucalyptus
The maintenance of soil organic matter (SOM) in commercial plantations of eucalyptus depends on the adoption of appropriate crop and soil management. Changes in inventories of C and the quality of the MOS caused by the use and soil management can be identified by quantifying the stocks of C in forest compartments (soil and plant) over time of cultivation, an
Publicado em: 2007
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10. MÃtodos de Controle de Plantas Daninhas na Cultura do Cafeeiro e seus Efeitos na AgregaÃÃo e em FraÃÃes da MatÃria OrgÃnica do Solo / Weed Control Methods in Coffee (Coffea arÃbica L.) And Yours Effects On Soil Aggregation and Soil Organic Matter Fractions.
The coffee crop expansion in Latosol occur with high invest in varieties, fertilization, irrigation and control of insects and plant diseases. The weeds in coffee crop should be control for to avoid production loss and make easier the crop management. This work aimed to study the effect of weed control methods in coffee on soil aggregation and also on soil o
Publicado em: 2005
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11. The pequi fruit (Caryocar brasiliense Camb.): vital cycle and aggregation of value for the minimal processing / Ciclo vital e agregaÃÃo de valores ao pequi
The species Caryocar brasiliense Camb. is very common in the region which composes the Cerrado (savanna-like vegetation), known popularly as pequi. It plays an important role in the life of the inhabitants in that region, whether economically with its sale in natura or even for its consumption. The purpose of this work was the characterization of the pequi a
Publicado em: 2005
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12. Sintese quimioenzimatica de (-)- serricornina e (+)- sitofilure
Chiral alcohols are versatile and convenient building blocks in the synthesis of biologically important compounds. Asymmetric reduction of b-keto esters by Baker s yeast (S. cerevisiae) has been widely used to obtain chiral alcohols because of simplicity, cheapness and enantioselectivity. However, the optical purities and the yields of these compounds are of
Publicado em: 1997