Aloe vera is among the world’s economically most important medicinal plants, but as the growth of this plant and, consequently, the accumulation of metabolites is slow, we tested the hypothesis that root endophytic bacteria isolated from A. vera plants can promote growth and inc...
BACKGROUND: This work studied how the exposure to an unusual substrate forced a change in microbial populations during anaerobic fermentation of crude glycerol, a by-product of biodiesel production, with freshwater sediment used as an inoculum. RESULTS: The microbial associations almost completely (99.9%...
Estudos moleculares ressaltam as limitações do protocolo endodôntico tradicional em eliminar bactérias dos canais radiculares. Apesar do preparo químico-cirúrgico (PQC) promover uma drástica redução bacteriana, muitos canais continuam infectados após essa etapa do tratamento. Dessa forma, estud...
Hidróxido de Calcio/uso terapéutico,
Periodontitis Periapical/tratamiento farmacológico,
Cementos para Huesos/uso terapéutico,
Cavidad Pulpar/microbiología,
Bacterias/metabolismo,
Preparación del Conducto Radicular/métodos,
Irrigación Terapéutica/métodos,
ADN Ribosómico/aislamiento & purificación,
ARN Ribosómico/aislamiento & purificación,
Bacterias/aislamiento & purificación,
Reacción en Cadena de la Polimerasa
Abstract INTRODUCTION: Introducing new antibiotics to the clinic is critical. METHODS: We adapted a plate method described by Kawaguchi and coworkers in 20131 for detecting inhibitory airborne microorganisms. RESULTS: We obtained 51 microbial colonies antagonist to Chromobacterium violaceum, purifi...
Microbiología del Aire,
Antibacterianos/aislamiento & purificación,
Antibacterianos/metabolismo,
Antibacterianos/farmacología,
Bacterias/aislamiento & purificación,
Bacterias/metabolismo,
Candida/efectos de los fármacos,
Chromobacterium/efectos de los fármacos,
Recuento de Colonia Microbiana,
Hongos/aislamiento & purificación,
Hongos/metabolismo,
Percepción de Quorum
ABSTRACT Anthropogenic activity, such as accidental oil spills, are typical sources of urban mangrove pollution that may affect mangrove bacterial communities as well as their mobile genetic elements. To evaluate remediation strategies, we followed over the time the effects of a petroleum hydrocarbon deg...
Avicennia/metabolismo,
Avicennia/microbiología,
Bacterias/clasificación,
Bacterias/genética,
Bacterias/aislamiento & purificación,
Bacterias/metabolismo,
Biodegradación Ambiental,
ADN Bacteriano/genética,
Hidrocarburos/metabolismo,
Petróleo/análisis,
Contaminación por Petróleo/análisis,
Plásmidos/genética,
Plásmidos/metabolismo,
ARN Ribosómico 16S/genética,
Rizosfera,
Contaminantes del Suelo/análisis,
Contaminantes del Suelo/metabolismo
ABSTRACT Anaerobic digestion is important for the management of livestock manure with high ammonia level. Although ammonia effects on anaerobic digestion have been comprehensively studied, the molecular mechanism underlying ammonia inhibition still remains elusive. In this study, based on metatranscripto...
Amoníaco/metabolismo,
Anaerobiosis,
Bacterias/clasificación,
Bacterias/genética,
Bacterias/aislamiento & purificación,
Bacterias/metabolismo,
Reactores Biológicos/microbiología,
Ácidos Grasos Volátiles/metabolismo,
Metano/metabolismo,
Microbiota,
Transcripción Genética
Background: Anaerobic digestion is an alternative bioprocess used to treat effluents containing toxic compounds such as phenol and p-cresol. Selection of an adequate sludge as inoculum containing an adapted microbial consortium is a relevant factor to improve the removal of these pollutants. The objectiv...
Abstract Human activities on the Earth's surface change the landscape of natural ecosystems. Mining practices are one of the most severe human activities, drastically altering the chemical, physical and biological properties of the soil environment. Bacterial communities in soil play an important role in...
Abstract An increasing production of natural rubber (NR) products has led to major challenges in waste management. In this study, the degradation of rubber latex gloves in a mineral salt medium (MSM) using a bacterial consortium, a mixed culture of the selected bacteria and a pure culture were studied. T...
Bacterias/clasificación,
Bacterias/genética,
Bacterias/aislamiento & purificación,
Bacterias/metabolismo,
Biodegradación Ambiental,
Guantes Protectores/microbiología,
Látex/metabolismo,
Rhodococcus/clasificación,
Rhodococcus/genética,
Rhodococcus/aislamiento & purificación,
Rhodococcus/metabolismo,
Goma/metabolismo,
Microbiología del Suelo
