TY - JOUR
T1 - An isolate of Rhizopus nigricans capable of tolerating and removing pentachlorophenol
AU - Tomasini, Araceli
AU - Flores, Verónica
AU - Cortés, Diana
AU - Barrios-González, Javier
N1 - Funding Information:
This research was supported by CONACYT grant No. 25703-B and grant 31572-B, México.
PY - 2001
Y1 - 2001
N2 - 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.
AB - 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.
KW - Biodegradation
KW - Filamentous fungi
KW - Pentachlorophenol
KW - Rhizopus nigricans
KW - Tolerance
UR - http://www.scopus.com/inward/record.url?scp=0035745540&partnerID=8YFLogxK
U2 - 10.1023/A:1016694720608
DO - 10.1023/A:1016694720608
M3 - Artículo
SN - 0959-3993
VL - 17
SP - 201
EP - 205
JO - World Journal of Microbiology and Biotechnology
JF - World Journal of Microbiology and Biotechnology
IS - 2
M1 - 337458
ER -