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Salinity induced effects on the growth rates and mycelia composition of basidiomycete and zygomycete fungi

2017Journal article Restricted access
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dc.contributor.authorVenâncio, C.
dc.contributor.authorPereira, R.
dc.contributor.authorFreitas, A. C.
dc.contributor.authorRocha-Santos, T. A. P.
dc.contributor.authorCosta, J. P. da
dc.contributor.authorDuarte, A. C.
dc.contributor.authorLopes, I.
dc.date.accessioned2018-09-17T16:20:31Z
dc.date.available2018-09-17T16:20:31Z
dc.date.issued2017
dc.description.abstractSoil salinization, as the combination of primary and secondary events, can adversely affect organisms inhabiting this compartment. In the present study, the effects of increased salinity were assessed in four species of terrestrial fungi: Lentinus sajor caju, Phanerochaete chrysosporium, Rhizopus oryzae and Trametes versicolor. The mycelial growth and biochemical composition of the four fungi were determined under three exposure scenarios: 1) exposure to serial dilutions of natural seawater (SW), 2) exposure to serial concentrations of NaCl (potential surrogate of SW); and 3) exposure to serial concentrations of NaCl after a period of pre-exposure to low levels of NaCl. The toxicity of NaCl was slightly higher than that of SW, for all fungi species: the conductivities causing 50% of growth inhibition (EC50) were within 14.9 and 22.0 mScm−1 for NaCl and within 20.2 and 34.1 mScm−1 for SW. Phanerochaete chrysosporium showed to be the less sensitive species, both for NaCl and SW. Exposure to NaCl caused changes in the biochemical composition of fungi, mainly increasing the production of polysaccharides. When fungi were exposed to SW this pattern of biochemical response was not observed. Fungi pre-exposed to low levels of salinity presented higher EC50 than fungi non-pre-exposed, though 95% confidence limits overlapped, with the exception of P. chrysosporium. Pre-exposure to low levels of NaCl also induced changes in the biochemical composition of the mycelia of L. sajor caju and R. oryzae, relatively to the respective control. These results suggest that some terrestrial fungi may acquire an increased tolerance to NaCl after being pre-exposed to low levels of this salt, thus, suggesting their capacity to persist in environments that will undergo salinization. Furthermore, NaCl could be used as a protective surrogate of SW to derive safe salinity levels for soils, since it induced toxicity similar or higher than that of SW.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVenâncio, C., Pereira, R., Freitas, A.C., Rocha-Santos, T.A.P., Costa, J.P., Duarte, A.C., Lopes, I. (2017). Salinity induced effects on the growth rates and mycelia composition of basidiomycete and zygomycete fungi. Environmental Pollution, 231, 1633-1641pt_PT
dc.identifier.doi10.1016/j.envpol.2017.09.075pt_PT
dc.identifier.eid85030664222
dc.identifier.eissn1873-6424
dc.identifier.issn0269-7491
dc.identifier.pmid28964607
dc.identifier.urihttp://hdl.handle.net/10400.14/25699
dc.identifier.wos000415777300045
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevier
dc.relationIF/00475/2013pt_PT
dc.relationSALTFREE - Prediction of salinisation effects on coastal freshwater and soil ecosystems due to climate changes
dc.subjectFungipt_PT
dc.subjectSalinitypt_PT
dc.subjectSeawaterpt_PT
dc.subjectPre-exposurept_PT
dc.subjectFTIRpt_PT
dc.titleSalinity induced effects on the growth rates and mycelia composition of basidiomycete and zygomycete fungipt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSALTFREE - Prediction of salinisation effects on coastal freshwater and soil ecosystems due to climate changes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAAC-CLI%2F111706%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F81717%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAMB%2F50017%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04423%2F2013/PT
oaire.citation.endPage1641
oaire.citation.startPage1633
oaire.citation.titleEnvironmental Pollutionpt_PT
oaire.citation.volume231
oaire.fundingStream5876-PPCDTI
oaire.fundingStreamSFRH
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNameVenâncio
person.familyNameCardoso Freitas Lopes de Freitas
person.familyNameRocha-Santos
person.familyNamePinto da Costa
person.familyNameDuarte
person.familyNameLopes
person.givenNameCátia
person.givenNameAna Cristina
person.givenNameTeresa
person.givenNameJoao
person.givenNameArmando
person.givenNameIsabel
person.identifier158867
person.identifier.ciencia-idA111-9781-C943
person.identifier.ciencia-id7F10-545A-7D05
person.identifier.ciencia-id2D1C-3C88-7AE4
person.identifier.ciencia-idAE14-87FF-223D
person.identifier.ciencia-id6F14-D930-774A
person.identifier.ciencia-id0C16-05A3-FB60
person.identifier.orcid0000-0002-6232-4081
person.identifier.orcid0000-0002-1430-9370
person.identifier.orcid0000-0003-3660-4116
person.identifier.orcid0000-0002-1871-7160
person.identifier.orcid0000-0002-4868-4099
person.identifier.orcid0000-0002-9325-0329
person.identifier.ridA-2355-2009
person.identifier.ridK-6027-2015
person.identifier.ridC-1424-2008
person.identifier.scopus-author-id35235205100
person.identifier.scopus-author-id55175893400
person.identifier.scopus-author-id7102601994
person.identifier.scopus-author-id35765477100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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