Pinna, Maria Vittoria and Castaldi, Paola and Deiana, Pietrino and Pusino, Alba and Garau, Giovanni (2012) Sorption behavior of sulfamethazine on unamended and manure-amended soils and short-term impact on soil microbial community. Ecotoxicology and Environmental Safety, Vol. 84 , p. 234-242. eISSN 1090-2414. Article.
Full text not available from this repository.
In this study we investigated the sorption of sulfamethazine (SMZ) in two soils with different physico-chemical properties and the sulfonamide short-term influence on the microbial community structure and function. The presence of manure increased the SMZ sorption, the uppermost level being measured on soil with the lower pH and the higher manure content allowed by the Italian regulation. The sulfonamide desorption was hysteretic on both soils. SMZ addition to soil at the concentration of 53.6 μg/g had a significant short-term negative impact on readily culturable bacteria, potential metabolic activity (Biolog CLPP) and soil enzyme activity. Moreover, a shift of the culturable microbial populations towards a lower bacteria/fungi ratio was observed after SMZ addition. Despite the observed SMZ effects disappeared almost completely after 7 day, structural changes of microbial communities were still present in SMZ-treated soils. The results presented are remarkable since previous studies addressing the SMZ impact on soil microbial parameters failed to highlight any significant effect of the sulfonamide on microbial abundance and diversity.
I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore
Repository Staff Only: item control page