Informações sobre o comportamento de pesticidas são importantes para o conhecimento do seu destino ambiental e, consequentemente, para a avaliação da sustentabilidade dos sistemas de produção agrícolas. Este trabalho teve os seguintes objetivos: (i) quantificar a lixiviação de dois inseticidas (endossulfam e tiametoxam) em uma área de plantio de soja na região de Ponta Porã, MS; (ii) avaliar a degradação e sorç...
Verificou-se a incidência de herpesvírus bovinos (BoHVs) em encéfalos de bovinos submetidos ao diagnóstico de raiva no estado do Rio Grande do Sul. Para tanto, amostras coletadas durante dois anos (n=70) foram submetidas ao isolamento viral em cultivos celulares. Os BoHVs foram isolados em dois (2,9%) encéfalos. Após serem submetidas à caracterização antigênica e molecular, as amostras foram subtipadas como BoH...
This study is focused on the diversity of bacterial communities from two series of horizontal subsurface flow constructed wetlands (CW) polishing high salinity tannery wastewater. Each series was planted with Arundo donax or Sarcocornia sp. in a substrate composed by expanded clay and sand. Chemical and biochemical oxygen demand removal efficiencies were similar in each series, varying between 58 and 67% (inlet...
The mycorrhizal colonisation of plants grown in unmanaged soils from two restoration sites with a fire history in Northern Portugal was evaluated from the perspective of supporting restoration programmes. To promote restoration of original tree stands, Quercus ilex L. and Pinus pinaster Ait. were used as target species on two sites, denoted Site 1 and 2 respectively. The aim of the study was to assess whether m...
Purpose: To test the antimicrobial properties of the extracts of stems and leaves of Ginja cherry plant. Both stems and leaves are waste in the production of the cherry liquor and they could be valorised by extracting valuable compounds, making the process more environmentally sustainable. Methods: The ethanol extracts from both stems and leaves were analysed by LC-ESI/MS to determine the phenolic composition....
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