An isolate of Rhizopus nigricans capable of tolerating and removing pentachlorophenol

Araceli Tomasini, Verónica Flores, Diana Cortés, Javier Barrios-González

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Rhizopus nigricans, isolated from an industrial effluent (paper mill), was resistant to pentachlorophenol (PCP) in Petri dishes and in submerged cultures (100 and 25 mg 1 -1 respectively). It was shown that this strain of R. nigricans can remove PCP in submerged culture. When 12.5 mg of PCP 1 -1 were added at 48 h, this compound had been completely removed by 144 h. Results indicated that the fungus did not produce extracellular lignin peroxidase (LiP) and laccase, but extracellular phenoloxidase production was observed. The synthesis of the latter enzyme was stimulated by the presence of PCP and/or tyrosine. These results indicate that this fungus, and probably other filamentous fungi, have an interesting potential to be used in processes for chlorophenol biodegradation.
Original languageAmerican English
Pages (from-to)201-205
Number of pages180
JournalWorld Journal of Microbiology and Biotechnology
DOIs
StatePublished - 1 Jan 2001
Externally publishedYes

Fingerprint

Pentachlorophenol
Rhizopus stolonifer
pentachlorophenol
Rhizopus
Fungi
fungi
lignin peroxidase
Chlorophenols
chlorophenols
pulp and paper mills
Laccase
industrial effluents
Monophenol Monooxygenase
laccase
monophenol monooxygenase
Biodegradation
biodegradation
Tyrosine
tyrosine
Effluents

Cite this

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abstract = "Rhizopus nigricans, isolated from an industrial effluent (paper mill), was resistant to pentachlorophenol (PCP) in Petri dishes and in submerged cultures (100 and 25 mg 1 -1 respectively). It was shown that this strain of R. nigricans can remove PCP in submerged culture. When 12.5 mg of PCP 1 -1 were added at 48 h, this compound had been completely removed by 144 h. Results indicated that the fungus did not produce extracellular lignin peroxidase (LiP) and laccase, but extracellular phenoloxidase production was observed. The synthesis of the latter enzyme was stimulated by the presence of PCP and/or tyrosine. These results indicate that this fungus, and probably other filamentous fungi, have an interesting potential to be used in processes for chlorophenol biodegradation.",
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An isolate of Rhizopus nigricans capable of tolerating and removing pentachlorophenol. / Tomasini, Araceli; Flores, Verónica; Cortés, Diana; Barrios-González, Javier.

In: World Journal of Microbiology and Biotechnology, 01.01.2001, p. 201-205.

Research output: Contribution to journalArticle

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