首页|ENVIRONMENT CHEMISTRY: COMPARATIVE STUDIES AND SUBLETHAL ECOTOXICITY OF NEW ANTIFUNGALS ON DAPHNIAMAGNA AS MODEL ORGANISM
ENVIRONMENT CHEMISTRY: COMPARATIVE STUDIES AND SUBLETHAL ECOTOXICITY OF NEW ANTIFUNGALS ON DAPHNIAMAGNA AS MODEL ORGANISM
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The objective of this work was to compare through chronic tests, the sublethal effects of two compounds: the antifungal commercial Pellital Bio-F36 (TCMTB), and a synthetic eco-friendly gemini (Gem-3e) compound in Daphnia magna. Both compounds are used in the industry as antifungals for the preservation of woods and leathers. The attributes of life history recorded as endpoints were: survival; growth; fecundity and net reproductive rate (Ro). The net reproductive rate (Ro) was =0 in the bioassays conducted with lxlO"4, 5xl05 and 2.5xl0'5 mg L"1 of TCMTB. This value is indicative of no reproductive events, condition that would indicate a population decline and possible local extinction. For the synthetic compound type-gemini (Gem-3e) only in the lowest concentration Ro was >1. Changes occurred in the life cycle of D. magna exposed to both compounds, but the concentrations tested with the commercial formulation was between 2100 and 2403 times lower than those of the Gem-3e compound.
Gemini surfactantsFull life cycle testsDaphnia magnaSublethal ecotoxicity
RENO ULISES、MACHUCA L. MARCELA、REGALDO LUCIANA
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Laboratorio de Ecotoxicologia, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral,(3000) Santa Fe, Argentina
Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Godoy Cruz 2290 (C1425FQB)Buenos Aires, Argentina
2021
Asian Journal of Microbiology, Biotechnology and Environmental Science
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