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Article: Community structure of free-floating filamentous cyanobacterial mats from the Wonder Lake geothermal springs in the Philippines

TitleCommunity structure of free-floating filamentous cyanobacterial mats from the Wonder Lake geothermal springs in the Philippines
Authors
KeywordsCyanobacteria
Fischerella
Geothermal springs
Microbial mats
Oscillatoria
Issue Date2005
PublisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cjm
Citation
Canadian Journal Of Microbiology, 2005, v. 51 n. 7, p. 583-589 How to Cite?
AbstractCyanobacterial mats were characterized from pools of 45-60 °C in near-neutral pH, low-sulphide geothermal springs in the Philippines. Mat structure did not vary with temperature. All mats possessed highly ordered layers of airspaces at both the macroscopic and microscopic level, and these appear to be an adaptation to a free-floating growth habit. Upper mat layers supported biomass with elevated carotenoid:chlorophyll a ratios and an as yet uncharacterized waxy layer on the dorsal surface. Microscopic examination revealed mats comprised a single Fischerella morphotype, with abundant heterocysts throughout mats at all temperatures. Molecular analysis of mat community structure only partly matched morphological identification. All samples supported greater 16S rDNA-defined diversity than morphology suggested, with a progressive loss in the number of genotypes with increasing temperature. Fischerella-like sequences were recovered from mats occurring at all temperatures, but some mats also yielded Oscillatoria-like sequences, although corresponding phenotypes were not observed. Phylogenetic analysis revealed that Fischerella-like sequences were most closely affiliated with Fischerella major and the Oscillatoria-like sequences with Oscillatoria amphigranulata. © 2005 NRC Canada.
Persistent Identifierhttp://hdl.handle.net/10722/44699
ISSN
2015 Impact Factor: 1.335
2015 SCImago Journal Rankings: 0.537
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLacap, DCen_HK
dc.contributor.authorSmith, GJDen_HK
dc.contributor.authorWarrenRhodes, Ken_HK
dc.contributor.authorPointing, SBen_HK
dc.date.accessioned2007-10-30T06:08:08Z-
dc.date.available2007-10-30T06:08:08Z-
dc.date.issued2005en_HK
dc.identifier.citationCanadian Journal Of Microbiology, 2005, v. 51 n. 7, p. 583-589en_HK
dc.identifier.issn0008-4166en_HK
dc.identifier.urihttp://hdl.handle.net/10722/44699-
dc.description.abstractCyanobacterial mats were characterized from pools of 45-60 °C in near-neutral pH, low-sulphide geothermal springs in the Philippines. Mat structure did not vary with temperature. All mats possessed highly ordered layers of airspaces at both the macroscopic and microscopic level, and these appear to be an adaptation to a free-floating growth habit. Upper mat layers supported biomass with elevated carotenoid:chlorophyll a ratios and an as yet uncharacterized waxy layer on the dorsal surface. Microscopic examination revealed mats comprised a single Fischerella morphotype, with abundant heterocysts throughout mats at all temperatures. Molecular analysis of mat community structure only partly matched morphological identification. All samples supported greater 16S rDNA-defined diversity than morphology suggested, with a progressive loss in the number of genotypes with increasing temperature. Fischerella-like sequences were recovered from mats occurring at all temperatures, but some mats also yielded Oscillatoria-like sequences, although corresponding phenotypes were not observed. Phylogenetic analysis revealed that Fischerella-like sequences were most closely affiliated with Fischerella major and the Oscillatoria-like sequences with Oscillatoria amphigranulata. © 2005 NRC Canada.en_HK
dc.format.extent1679053 bytes-
dc.format.extent1831 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cjmen_HK
dc.relation.ispartofCanadian Journal of Microbiologyen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsCanadian Journal of Microbiology. Copyright © N R C Research Press.en_HK
dc.subjectCyanobacteriaen_HK
dc.subjectFischerellaen_HK
dc.subjectGeothermal springsen_HK
dc.subjectMicrobial matsen_HK
dc.subjectOscillatoriaen_HK
dc.subject.meshCyanobacteria-growth-and-developmenten_HK
dc.subject.meshEcosystem-en_HK
dc.titleCommunity structure of free-floating filamentous cyanobacterial mats from the Wonder Lake geothermal springs in the Philippinesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0008-4166&volume=51&issue=7&spage=583&epage=539&date=2005&atitle=Community+structure+of+free-floating+filamentous+cyanobacterial+mats+from+the+Wonder+Lake+geothermal+springs+in+the+Philippinesen_HK
dc.identifier.emailSmith, GJD: gjsmith@hkucc1.hku.hken_HK
dc.identifier.emailPointing, SB: pointing@hkucc.hku.hken_HK
dc.identifier.authoritySmith, GJD=rp00444en_HK
dc.identifier.authorityPointing, SB=rp00771en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1139/w05-038en_HK
dc.identifier.pmid16175207-
dc.identifier.scopuseid_2-s2.0-28344454481en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-28344454481&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume51en_HK
dc.identifier.issue7en_HK
dc.identifier.spage583en_HK
dc.identifier.epage589en_HK
dc.identifier.isiWOS:000231985700008-
dc.publisher.placeCanadaen_HK
dc.identifier.scopusauthoridLacap, DC=9640383000en_HK
dc.identifier.scopusauthoridSmith, GJD=8344015800en_HK
dc.identifier.scopusauthoridWarrenRhodes, K=6507272414en_HK
dc.identifier.scopusauthoridPointing, SB=6603986412en_HK

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