Advisor(s)
Abstract(s)
This work evaluates for the first time the
relationships between copper-tolerance, -solubilization
and -bioaccumulation in the entomopathogen Beauveria
bassiana exposed to Bordeaux mixture, copper oxychloride
or copper hydroxide. Bordeaux mixture was highly detrimental
to fungus, by inhibiting the growth totally at the
recommended dose (RD) and 29RD. Copper hydroxide
and copper oxychloride were found to be less toxic,
reducing fungus growth, sporulation and conidial germination
in an average of 29 %, 30 % and 58 %, respectively.
These two copper forms were the easiest to
solubilize, to precipitate and the most accumulated by
B. bassiana, suggesting the involvement of all these processes
on fungus copper-tolerance.
Description
Keywords
Beauveria bassiana Copper-based fungicides Tolerance
Citation
Martins, Fátima; Soares, Maria Elisa; Oliveira, Ivo; Pereira, J.A.; Bastos, Maria de Lourdes; Baptista, Paula (2012). Tolerance and bioaccumulation of copper by the entomopathogen Beauveria bassiana (Bals.-Criv.) Vuill. exposed to various copper-based fungicides. Bulletin of Environmental Contamination and Toxicology. ISSN 0007-4861. 89:1, p. 53-60
Publisher
Springer