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Influence of iron and copper on the activity of laccases in Fusarium oxysporum f. sp. lycopersici BJM
Hernández-Monjaraz,Wendy Susana; Caudillo-Pérez,César; Salazar-Sánchez,Pedro Ulises; Macías-Sánchez,Karla Lizbeth.
ABSTRACT Fusarium oxysporum f. sp. lycopersici is a phytopathogenic fungus that causes vascular wilt in tomato plants. In this work we analyze the influence of metal salts such as iron and copper sulphate, as well as that of bathophenanthrolinedisulfonic acid (iron chelator) and bathocuproinedisulfonic acid (copper chelator) on the activity of laccases in the intra (IF) and extracellular fractions (EF) of the wild-type and the non-pathogenic mutant strain (rho1::hyg) of F. oxysporum. The results show that laccase activity in the IF fraction of the wild and mutant strain increased with the addition of iron chelator (53.4 and 114.32%; respectively). With copper, it is observed that there is an inhibition of the activity with the addition of CuSO4 for the EF...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chelators; Cooper; Fusarium; Iron; Laccases.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500269
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