Revue: | Brazilian archives of biology and technology |
Base de datos: | PERIÓDICA |
Número de sistema: | 000388235 |
ISSN: | 1516-8913 |
Autores: | Silva-Junior, Flavio Manoel Rodrigues da1 Pereira, Sonia Valeria2 |
Instituciones: | 1Universidade Federal do Rio Grande, Laboratorio de Ensaios Farmacologicos e Toxicologicos, Rio Grande, Rio Grande do Sul. Brasil 2Instituto de Tecnologia de Pernambuco, Recife, Pernambuco. Brasil |
Año: | 2014 |
Periodo: | Sep-Oct |
Volumen: | 57 |
Número: | 5 |
Paginación: | 723-727 |
País: | Brasil |
Idioma: | Inglés |
Tipo de documento: | Nota breve o noticia |
Enfoque: | Experimental |
Resumen en inglés | The purpose of this study was to assess the impact of metallurgical industry wastes on the semiarid soil microbiota using physico-chemical and microbiological parameters, highlighting the filamentous fungi assembly. Soil samples were collected in an area of industrial waste deposit contaminated with lead and mixed with natural soil (control soil) in seven different concentrations (0, 7.5, 15, 30, 45, 60 and 100%). The results showed alterations on the physico-chemical properties of the soil treated with industrial wastes, with a gradate increase of the soil's pH (5.6-10.4) and electrical conductivity (0.3-14.7 dS m-1) and also reduction of organic matter (7.0-1.8%). The use of microbiological parameters (fungal richness and diversity, CO2 emission, and the carbon on the microbial biomass) enabled the identification of alterations on the microbial community due to stress caused by the exposure to industrial wastes, despite the presence of Thielavia, Chaetomium and Aspergillus tolerant to high concentrations of the scoria. Therefore, these filamentous fungi could be used in biomonitoring and bioremediation studies in the soils contaminated by industrial wastes |
Disciplinas: | Biología |
Palabras clave: | Hongos, Toxicología, Suelos, Industria metalúrgica, Residuos industriales, Bioensayos, Actividad microbiana, Suelos contaminados, Hongos filamentosos, Plomo |
Keyword: | Biology, Fungi, Toxicology, Soils, Metallurgical industry, Industrial wastes, Bioassays, Microbial activity, Polluted soils, Filamentous fungi, Lead |
Texte intégral: | Texto completo (Ver HTML) |