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Article: Phenotypic expression of Vogesella indigofera upon exposure to hexavalent chromium, Cr6+

TitlePhenotypic expression of Vogesella indigofera upon exposure to hexavalent chromium, Cr6+
Authors
KeywordsBioindicator
Chromium
Heavy metal
Phenotypic expression
Pigment production
Plasticity
Rugose colony
Vogesella indigofera
Issue Date2001
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0959-3993
Citation
World Journal Of Microbiology And Biotechnology, 2001, v. 17 n. 5, p. 475-480 How to Cite?
AbstractA eubacterium producing a blue pigment was isolated from a drinking water filter, and subsequently identified as Vogesella indigofera. This bacterium was further investigated for its morphological and biochemical characteristics after exposure to hexavalent chromium, Cr6+. The threshold Cr6+ concentration inhibiting the pigment production by V. indigofera was 200-300 μg ml-1 in liquid cultures of nutrient broth and 100-150 μg ml-1 on nutrient agar plates. The Cr6+ concentration preventing V. indigofera growth was 300-400 μg ml-1 in liquid cultures, but greater than 150 μg ml-1 on agar plates. Moreover, rugose colonies without the blue pigmentation were observed on agar plates amended with 150 (μg Cr6+) ml-1. The biochemical utilization profiles of the colonies without pigmentation did not differ from the original pigment-producing ones, indicating phenotypic plasticity of this bacterium. The difference of phenotypic expression of V. indigofera under various Cr6+ concentrations might have potential application as a pollution bioindicator for heavy metals.
Persistent Identifierhttp://hdl.handle.net/10722/73374
ISSN
2015 Impact Factor: 1.532
2015 SCImago Journal Rankings: 0.634
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorGu, JDen_HK
dc.contributor.authorCheung, KHen_HK
dc.date.accessioned2010-09-06T06:50:40Z-
dc.date.available2010-09-06T06:50:40Z-
dc.date.issued2001en_HK
dc.identifier.citationWorld Journal Of Microbiology And Biotechnology, 2001, v. 17 n. 5, p. 475-480en_HK
dc.identifier.issn0959-3993en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73374-
dc.description.abstractA eubacterium producing a blue pigment was isolated from a drinking water filter, and subsequently identified as Vogesella indigofera. This bacterium was further investigated for its morphological and biochemical characteristics after exposure to hexavalent chromium, Cr6+. The threshold Cr6+ concentration inhibiting the pigment production by V. indigofera was 200-300 μg ml-1 in liquid cultures of nutrient broth and 100-150 μg ml-1 on nutrient agar plates. The Cr6+ concentration preventing V. indigofera growth was 300-400 μg ml-1 in liquid cultures, but greater than 150 μg ml-1 on agar plates. Moreover, rugose colonies without the blue pigmentation were observed on agar plates amended with 150 (μg Cr6+) ml-1. The biochemical utilization profiles of the colonies without pigmentation did not differ from the original pigment-producing ones, indicating phenotypic plasticity of this bacterium. The difference of phenotypic expression of V. indigofera under various Cr6+ concentrations might have potential application as a pollution bioindicator for heavy metals.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0959-3993en_HK
dc.relation.ispartofWorld Journal of Microbiology and Biotechnologyen_HK
dc.subjectBioindicatoren_HK
dc.subjectChromiumen_HK
dc.subjectHeavy metalen_HK
dc.subjectPhenotypic expressionen_HK
dc.subjectPigment productionen_HK
dc.subjectPlasticityen_HK
dc.subjectRugose colonyen_HK
dc.subjectVogesella indigoferaen_HK
dc.titlePhenotypic expression of Vogesella indigofera upon exposure to hexavalent chromium, Cr6+en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0959-3993&volume=17&spage=475&epage=480&date=2001&atitle=Phenotypic+expression+of+Vogesella+indigofera+upon+exposure+to+hexavalent+chromium,+Cr6+en_HK
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_HK
dc.identifier.authorityGu, JD=rp00701en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1023/A:1011966725978en_HK
dc.identifier.scopuseid_2-s2.0-0034768929en_HK
dc.identifier.hkuros69645en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034768929&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume17en_HK
dc.identifier.issue5en_HK
dc.identifier.spage475en_HK
dc.identifier.epage480en_HK
dc.identifier.isiWOS:000171303600008-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridGu, JD=7403129601en_HK
dc.identifier.scopusauthoridCheung, KH=7402406659en_HK

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