期刊
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
卷 62, 期 10, 页码 1451-1461出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/03650340.2016.1155699
关键词
White-rot fungi; biobed; atrazine; pelletized support; biological activity
资金
- Universidad de La Frontera [UFRO-2015-2016]
- FONDECYT [1120963]
- CONICYT FONDAP [15130015]
Due to environmental concerns about accumulation of the herbicide atrazine in food products and water reservoirs, there is a need to develop safe and economical methods for its dissipation. The main aim of this study was to evaluate atrazine dissipation in a biobed system inoculated with immobilized white-rot fungi in a pelletized support (PS). All fungal isolates evaluated were efficient in colonizing the surface and inner parts of the PS, with no differences observed in the colonization over the assay. The highest atrazine dissipation (93%) was observed for Stereum hirsutum Ru-104 after 60days of incubation. In contrast, the lowest atrazine dissipation (78%) was observed for the non-inoculated biobed over an identical period. Trametes versicolor HL01 was involved in the highest phenoloxidase activity. This activity indicates that inoculated and non-inoculated biobeds were biologically active over the incubation period. A high respiration rate in the biobed was observed when it was inoculated with S. hirsutum Ru-104. Inoculation of fungi on PS systems may be a coadjutant in the increase of fungal efficiency in enzymatic production.
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