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Vesentini, D. et al.

Vesentini, Dickinson, Murphy,

Fungicides affect the production of extracellular mucilaginous material (ECMM) and the peripheral growth unit (PGU) in two wood-rotting basidiomycetes.

This study shows the effect of two fungicides on the production of extracellular mucilaginous material (ECMM) in two wood-rotting basidiomycetes and identifies a mechanism that might be responsible for the variation observed. Increasing concentrations of the fungicides copper sulphate (CuSO(4)) and cyproconazole in the growth medium increased the proportion of ECMM in the biomass of Trametes versicolor and Gloeophyllum trabeum. These fungicides also caused a reduction in the length of the peripheral growth unit (PGU) of the mycelia leading to a more highly branched morphology and a larger number of hyphal tips, the sites for active secretion of ECMM, per unit length of mycelium. It is postulated that both in T. versicolor and G. trabeum this change in growth leads to the increases observed in the proportion of ECMM in the total biomass. The implications of these results are discussed with a view to a potential protective role of ECMM against stress and toxic environments.[1]

References

Fungicides affect the production of extracellular mucilaginous material (ECMM) and the peripheral growth unit (PGU) in two wood-rotting basidiomycetes. Vesentini, D., Dickinson, D.J., Murphy, R.J. Mycol. Res. (2006) [Pubmed]

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