Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxification

At present, it is common to observe environments with organic and inorganic pollution, defined as co-contamination. Most industrial and urban effluents releases both pollutant types, leading to a complex environmental problem, as the biota must be tolerant to both xenobiotics. T. helicus, an efficie...

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Autores principales:	Romero,M. Cristina, Reinoso,Enso H., Urrutia,M. Inés, Moreno Kiernan,Alejandro
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2006
Materias:	biodegradation biphenyl cocontaminated sites cotolerance metal sorption Talaromyces helicus
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300009
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spelling	oai:scielo:S0717-345820060003000092007-01-17Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxificationRomero,M. CristinaReinoso,Enso H.Urrutia,M. InésMoreno Kiernan,Alejandro biodegradation biphenyl cocontaminated sites cotolerance metal sorption Talaromyces helicus At present, it is common to observe environments with organic and inorganic pollution, defined as co-contamination. Most industrial and urban effluents releases both pollutant types, leading to a complex environmental problem, as the biota must be tolerant to both xenobiotics. T. helicus, an efficient strain to degrade biphenyl, was trained with high copper levels, and became co tolerant to cobalt, lead and cadmium when was cultured in their presence. The copper adaptation was the result of physiological mechanisms, and the activated biochemical processes conferred resistance to Cu2+ as well as to other heavy metals. Furthermore, the Cu2+ adaptation of the mycelium was also transferred to the spores, that removed twice as much copper from solution than those of the no trained parentals. Interestingly, metals combinations were less toxic than single ones, and co tolerance development indicated that the cellular mechanisms that conferred resistance were non-specific, so the micobiota isolated from co contaminated environments often exhibited resistance to more than one ions. These results emphasized the detoxification abilities of T. helicus and the adaptation to heavy metals and biarylic compounds. This data is significant for the environmental biotechnology, suggesting that such tolerance and co tolerance could be acquired in natural environments. So a simple bioremediation strategy could enhance the detoxification of these polluted areas, as the degrader organisms could be present.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.9 n.3 20062006-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300009en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	biodegradation biphenyl cocontaminated sites cotolerance metal sorption Talaromyces helicus
spellingShingle	biodegradation biphenyl cocontaminated sites cotolerance metal sorption Talaromyces helicus Romero,M. Cristina Reinoso,Enso H. Urrutia,M. Inés Moreno Kiernan,Alejandro Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxification
description	At present, it is common to observe environments with organic and inorganic pollution, defined as co-contamination. Most industrial and urban effluents releases both pollutant types, leading to a complex environmental problem, as the biota must be tolerant to both xenobiotics. T. helicus, an efficient strain to degrade biphenyl, was trained with high copper levels, and became co tolerant to cobalt, lead and cadmium when was cultured in their presence. The copper adaptation was the result of physiological mechanisms, and the activated biochemical processes conferred resistance to Cu2+ as well as to other heavy metals. Furthermore, the Cu2+ adaptation of the mycelium was also transferred to the spores, that removed twice as much copper from solution than those of the no trained parentals. Interestingly, metals combinations were less toxic than single ones, and co tolerance development indicated that the cellular mechanisms that conferred resistance were non-specific, so the micobiota isolated from co contaminated environments often exhibited resistance to more than one ions. These results emphasized the detoxification abilities of T. helicus and the adaptation to heavy metals and biarylic compounds. This data is significant for the environmental biotechnology, suggesting that such tolerance and co tolerance could be acquired in natural environments. So a simple bioremediation strategy could enhance the detoxification of these polluted areas, as the degrader organisms could be present.
author	Romero,M. Cristina Reinoso,Enso H. Urrutia,M. Inés Moreno Kiernan,Alejandro
author_facet	Romero,M. Cristina Reinoso,Enso H. Urrutia,M. Inés Moreno Kiernan,Alejandro
author_sort	Romero,M. Cristina
title	Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxification
title_short	Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxification
title_full	Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxification
title_fullStr	Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxification
title_full_unstemmed	Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxification
title_sort	biosorption of heavy metals by talaromyces helicus: a trained fungus for copper and biphenyl detoxification
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300009
work_keys_str_mv	AT romeromcristina biosorptionofheavymetalsbytalaromyceshelicusatrainedfungusforcopperandbiphenyldetoxification AT reinosoensoh biosorptionofheavymetalsbytalaromyceshelicusatrainedfungusforcopperandbiphenyldetoxification AT urrutiamines biosorptionofheavymetalsbytalaromyceshelicusatrainedfungusforcopperandbiphenyldetoxification AT morenokiernanalejandro biosorptionofheavymetalsbytalaromyceshelicusatrainedfungusforcopperandbiphenyldetoxification
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Biosorption of heavy metals by Talaromyces helicus: a trained fungus for copper and biphenyl detoxification

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