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O principal objetivo deste trabalho foi estudar a degradação de PCP por Sphingomonas chlorophenolicaem solo argiloso na presença e ausência de trigo. As concentrações de PCP foram determinadas através de Análises de Alta Performance de Cromatografia Líquida. Os efeitos tóxicos de PCP foram estudados através do monitoramento do crescimento das plantas. A biodegradação de PCP por S. chlorophenolica foi acompanhada por testes de bioluminescência de Escherichia coli HB101 pUCD607 e contagens bacterianas no solo e nas raízes. A degradação de PCP ocorreu de forma mais rápida no solo plantado e inoculado quando comparada ao solo sem plantas. Houve um aumento significativo nas populações dos organismos testados nas raízes quando comparadas com as populações presentes no solo. O monitoramento do crescimento da planta mostrou o papel protetor exercido pela S.chlorophenolica contra a toxicidade do PCP. The main objective of this study was study the PCP degradation by Sphingomonas chlorophenolica in a loamy soil in the presence and absence of plants (Winter wheat). Measurements of PCP concentrations were carried out in a laboratory basis using High performance liquid chromatography analysis (HPLC). The toxic effect of PCP on plants was studied through the monitoring of the plant growth. The biodegradation of PCP by S. chlorophenolica in soil was assessed with a bioluminescence assay of Escherichia coli HB101 pUCD607 and bacterial analyses in roots and soil. The planted and inoculated soil showed a faster degradation when compared to the inoculated soil without plants. There was a significative increase in the populations of the organisms tested in the roots when compared to the soil. The monitoring of the plant growth showed a protective role of S. chlorophenolica against the toxicity of PCP in the loamy soil

Rizoremediação de pentaclorofenol em um solo argiloso por sphingomonas chlorophenolica ATCC 39723