Aerobic biotransformation of 2, 4, 6–trichlorophenol by Penicillium chrysogenum in aqueous batch culture: Degradation and residual phytotoxicity Aerobic biotransformation of 2, 4, 6–trichlorophenol by Penicillium chrysogenum in aqueous batch culture: Degradation and residual phytotoxicity Posted in .