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Article: Changes in the biofilm microflora of limestone caused by atmospheric pollutants

TitleChanges in the biofilm microflora of limestone caused by atmospheric pollutants
Authors
KeywordsAir pollution
Biofilms
Historic stone
Hydrocarbons
Limestone
Pollutants
Stone deterioration
Sulfur
Issue Date2000
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/ibiod
Citation
International Biodeterioration And Biodegradation, 2000, v. 46 n. 4, p. 299-303 How to Cite?
AbstractHistoric limestone materials in urban environments are continually exposed to air pollutants, including sulfur compounds and hydrocarbons. We investigated the effects of air pollution on the biofilm microflora of historic limestone gravestones located at two locations Massachusetts, USA. Our data showed that the culturable populations of chemolithotrophic and heterotrophic bacteria, and fungi were suppressed in the polluted habitat comparing with the unpolluted location. The diversity of the microflora was also reduced in the surface biofilms on gravestones in the city contaminated by air pollution. However, both the sulfur-oxidizing and hydrocarbon-utilizing microflora were enriched in the biofilms exposed to air pollution. In a laboratory study, low concentrations of the polluting chemicals stimulated growth of these bacteria, and resulted in rapid acid production. Scanning electron microscopy demonstrated that the biofilms of both the sulfur-oxidizing bacteria and the hydrocarbon-degrading microflora penetrated into the limestone. The enrichment of sulfur- and hydrocarbon-utilizing bacteria in the biofilms may contribute to dissolution of the stone. However, further research is required to determine the effects of specific metabolites of these microorganisms on stone deterioration. © 2001 Published by Elsevier Science Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/73393
ISSN
2015 Impact Factor: 2.429
2015 SCImago Journal Rankings: 0.919
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorMitchell, Ren_HK
dc.contributor.authorGu, JDen_HK
dc.date.accessioned2010-09-06T06:50:51Z-
dc.date.available2010-09-06T06:50:51Z-
dc.date.issued2000en_HK
dc.identifier.citationInternational Biodeterioration And Biodegradation, 2000, v. 46 n. 4, p. 299-303en_HK
dc.identifier.issn0964-8305en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73393-
dc.description.abstractHistoric limestone materials in urban environments are continually exposed to air pollutants, including sulfur compounds and hydrocarbons. We investigated the effects of air pollution on the biofilm microflora of historic limestone gravestones located at two locations Massachusetts, USA. Our data showed that the culturable populations of chemolithotrophic and heterotrophic bacteria, and fungi were suppressed in the polluted habitat comparing with the unpolluted location. The diversity of the microflora was also reduced in the surface biofilms on gravestones in the city contaminated by air pollution. However, both the sulfur-oxidizing and hydrocarbon-utilizing microflora were enriched in the biofilms exposed to air pollution. In a laboratory study, low concentrations of the polluting chemicals stimulated growth of these bacteria, and resulted in rapid acid production. Scanning electron microscopy demonstrated that the biofilms of both the sulfur-oxidizing bacteria and the hydrocarbon-degrading microflora penetrated into the limestone. The enrichment of sulfur- and hydrocarbon-utilizing bacteria in the biofilms may contribute to dissolution of the stone. However, further research is required to determine the effects of specific metabolites of these microorganisms on stone deterioration. © 2001 Published by Elsevier Science Ltd.en_HK
dc.languageengen_HK
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/ibioden_HK
dc.relation.ispartofInternational Biodeterioration and Biodegradationen_HK
dc.subjectAir pollutionen_HK
dc.subjectBiofilmsen_HK
dc.subjectHistoric stoneen_HK
dc.subjectHydrocarbonsen_HK
dc.subjectLimestoneen_HK
dc.subjectPollutantsen_HK
dc.subjectStone deteriorationen_HK
dc.subjectSulfuren_HK
dc.titleChanges in the biofilm microflora of limestone caused by atmospheric pollutantsen_HK
dc.typeArticleen_HK
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_HK
dc.identifier.authorityGu, JD=rp00701en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0964-8305(00)00105-0en_HK
dc.identifier.scopuseid_2-s2.0-0034468535en_HK
dc.identifier.hkuros56931en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034468535&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume46en_HK
dc.identifier.issue4en_HK
dc.identifier.spage299en_HK
dc.identifier.epage303en_HK
dc.identifier.isiWOS:000167128200007-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridMitchell, R=7403974570en_HK
dc.identifier.scopusauthoridGu, JD=7403129601en_HK

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