Effects of pentachlorophenol and some of its known and possible metabolites on fungi

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Abstract
The fungicidal activity of pentachlorophenol and its derivatives against 16 species of fungi representing 14 genera was tested. In relation to pentachlorophenol, no increase in fungistatic activity was found for pentachloroanisole, pentachloronitrobenzene, hexachlorobenzene, pentachlorophenyl acetate, o- and p-chloranil, the three isomeric chlorophenols, 2,6-dichlorophenol, the three isomeric tetrachlorobenzenediols, the three isomeric tetrachlorodimethoxybenzenes, the three isomeric tetrachlorobenzenediol diacetates, and all of the isomeric mono-, di-, tri-, and tetrachloroanisoles, except for 2,3,5-trichloroanisole with Geotrichum candidadum PC 67 and for 2,3,5,6-tetrachloroanisole with Mucor circinelloides PC 1. Increasing fungistatic activities were seen with 3,5-dichlorophenol, four trichlorophenols, and 2,3,4,5-tetrachlorophenol for all of the strains, with four dichlorophenols, 2,4,6-trichlorophenol, and two tetrachlorophenols for some strains, and with 2,3,6-trichlorophenol for only one strain (M. circinelloides PC 1).