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Potential of ectomycorrhizal fungus Pisolithus tinctorius to tolerate and to degrade trifluoroacetate into fluoroform

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dc.contributor.authorFranco, Albina R.
dc.contributor.authorRamos, Miguel A.
dc.contributor.authorCravo, Sara
dc.contributor.authorAfonso, Carlos
dc.contributor.authorCastro, Paula M. L.
dc.date.accessioned2014-10-29T10:39:20Z
dc.date.available2014-10-29T10:39:20Z
dc.date.issued2014
dc.description.abstractTrifluoroacetate (TFA) is a persistent fluorinated organic compound originated from the degradation of fluorinated compounds, such as HCFC and isoflurane, or as a side product from the thermolysis of fluoropolymers, like Teflon. TFA can reach soil through precipitation, where it persists in water and soil, and may contribute to forest decline. In this study, we assessed the capacity of P. tinctorius, an ectomycorrhizal fungus (ECMF), to tolerate and/or degrade TFA. In vitro studies in glucose-supplemented solid medium showed that the fungus tolerated up to 8.77 mM TFA. P. tinctorius also degraded 88.3 %, 89.9 %, and 42.1 % of 0.88, 2.39, and 4.39 mM TFA, respectively, in liquid cultures. No TFA accumulation was detected on the fungus mycelium, suggesting that TFA depletion was due to fungal degradation. Defluorination was not detected. A volatile compound with a structure and behavior compatible with fluoroform (CHF3), a potent greenhouse gas, was detected using GC-MS/MS, only in the gas phase of sealed P. tinctorius cultures supplied with TFA. Further confirmation of this compound is needed. Nevertheless, the study shows that P. tinctorius was capable to degrade TFA possibly through a similar pathway to that found on marine sediments. The results evidence the role of ECMF may play in the degradation of fluorinated organic compounds, enhancing their potential contribution on establishing tree growth in soils exposed to organic contamination.por
dc.identifier.citationFRANCO, Albina R. [et al.] - Potential of ectomycorrhizal fungus Pisolithus tinctorius to tolerate and to degrade trifluoroacetate into fluoroform. In 16th European Congress on Biotechnology, Edinburgh, Scotland, 13-16 July, 2014.- In New Biotechnology, Abstracts of the 16th European Congress on Biotechnology, vol.31, Supplement, 2014, p.S65por
dc.identifier.doi10.1016/j.nbt.2014.05.1760
dc.identifier.urihttp://hdl.handle.net/10400.14/15371
dc.language.isoengpor
dc.relationPTDC-AGR-CFL-111583-2009por
dc.titlePotential of ectomycorrhizal fungus Pisolithus tinctorius to tolerate and to degrade trifluoroacetate into fluoroformpor
dc.typeconference object
dspace.entity.typePublication
person.familyNameFranco
person.familyNameAfonso
person.familyNameCastro
person.givenNameAlbina
person.givenNameCarlos
person.givenNamePaula
person.identifier2013444
person.identifier.ciencia-id6A10-3565-6158
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0001-8974-8354
person.identifier.orcid0000-0002-5731-5789
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridE-3755-2014
person.identifier.ridI-5989-2015
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id10142995700
person.identifier.scopus-author-id36145043600
person.identifier.scopus-author-id7102781782
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublication838bf95f-6ac2-41cf-b03f-2afd6e95b212
relation.isAuthorOfPublication181a86a6-86a0-463c-b86e-d4e5669236da
relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isAuthorOfPublication.latestForDiscovery838bf95f-6ac2-41cf-b03f-2afd6e95b212

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