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Article: Community phylogenetic analysis of moderately thermophilic cyanobacterial mats from China, the Philippines and Thailand

TitleCommunity phylogenetic analysis of moderately thermophilic cyanobacterial mats from China, the Philippines and Thailand
Authors
KeywordsCyanobacteria
Hot springs
Microbial mats
Synechococcus
Thermophiles
Issue Date2005
PublisherSpringer Japan. The Journal's web site is located at http://link.springer-ny.com/link/service/journals/00792/index.htm
Citation
Extremophiles, 2005, v. 9 n. 4, p. 325-332 How to Cite?
AbstractMost community molecular studies of thermophilic cyanobacterial mats to date have focused on Synechococcus occurring at temperatures of ∼50-65°C. These reveal that molecular diversity exceeds that indicated by morphology, and that phylogeographic lineages exist. The moderately thermophilic and generally filamentous cyanobacterial mat communities occurring at lower temperatures have not previously been investigated at the community molecular level. Here we report community diversity in mats of 42-53°C recovered from previously unstudied geothermal locations. Separation of 16S rRNA gene-defined genotypes from community DNA was achieved by DGGE. Genotypic diversity was greater than morphotype diversity in all mats sampled, although genotypes generally corresponded to observed morphotypes. Thirty-six sequences were recovered from DGGE bands. Phylogenetic analyses revealed these to form novel thermophilic lineages distinct from their mesophilic counterparts, within Calothrix, Cyanothece, Fischerella, Phormidium, Pleurocapsa, Oscillatoria and Synechococcus. Where filamentous cyanobacterial sequences belonging to the same genus were recovered from the same site, these were generally closely affiliated. Location-specific sequences were observed for some genotypes recovered from geochemically similar yet spatially separated sites, thus providing evidence for phylogeographic lineages that evolve in isolation. Other genotypes were more closely affiliated to geographically remote counterparts from similar habitats suggesting that adaptation to certain niches is also important. © Springer-Verlag 2005.
Persistent Identifierhttp://hdl.handle.net/10722/72974
ISSN
2015 Impact Factor: 2.346
2015 SCImago Journal Rankings: 0.972
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHongmei, Jen_HK
dc.contributor.authorAitchison, JCen_HK
dc.contributor.authorLacap, DCen_HK
dc.contributor.authorPeerapornpisal, Yen_HK
dc.contributor.authorSompong, Uen_HK
dc.contributor.authorPointing, SBen_HK
dc.date.accessioned2010-09-06T06:46:52Z-
dc.date.available2010-09-06T06:46:52Z-
dc.date.issued2005en_HK
dc.identifier.citationExtremophiles, 2005, v. 9 n. 4, p. 325-332en_HK
dc.identifier.issn1431-0651en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72974-
dc.description.abstractMost community molecular studies of thermophilic cyanobacterial mats to date have focused on Synechococcus occurring at temperatures of ∼50-65°C. These reveal that molecular diversity exceeds that indicated by morphology, and that phylogeographic lineages exist. The moderately thermophilic and generally filamentous cyanobacterial mat communities occurring at lower temperatures have not previously been investigated at the community molecular level. Here we report community diversity in mats of 42-53°C recovered from previously unstudied geothermal locations. Separation of 16S rRNA gene-defined genotypes from community DNA was achieved by DGGE. Genotypic diversity was greater than morphotype diversity in all mats sampled, although genotypes generally corresponded to observed morphotypes. Thirty-six sequences were recovered from DGGE bands. Phylogenetic analyses revealed these to form novel thermophilic lineages distinct from their mesophilic counterparts, within Calothrix, Cyanothece, Fischerella, Phormidium, Pleurocapsa, Oscillatoria and Synechococcus. Where filamentous cyanobacterial sequences belonging to the same genus were recovered from the same site, these were generally closely affiliated. Location-specific sequences were observed for some genotypes recovered from geochemically similar yet spatially separated sites, thus providing evidence for phylogeographic lineages that evolve in isolation. Other genotypes were more closely affiliated to geographically remote counterparts from similar habitats suggesting that adaptation to certain niches is also important. © Springer-Verlag 2005.en_HK
dc.languageengen_HK
dc.publisherSpringer Japan. The Journal's web site is located at http://link.springer-ny.com/link/service/journals/00792/index.htmen_HK
dc.relation.ispartofExtremophilesen_HK
dc.subjectCyanobacteriaen_HK
dc.subjectHot springsen_HK
dc.subjectMicrobial matsen_HK
dc.subjectSynechococcusen_HK
dc.subjectThermophilesen_HK
dc.titleCommunity phylogenetic analysis of moderately thermophilic cyanobacterial mats from China, the Philippines and Thailanden_HK
dc.typeArticleen_HK
dc.identifier.emailAitchison, JC: jona@hku.hken_HK
dc.identifier.emailPointing, SB: pointing@hkucc.hku.hken_HK
dc.identifier.authorityAitchison, JC=rp00658en_HK
dc.identifier.authorityPointing, SB=rp00771en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00792-005-0456-1en_HK
dc.identifier.pmid15970994-
dc.identifier.scopuseid_2-s2.0-23944519637en_HK
dc.identifier.hkuros103413en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-23944519637&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume9en_HK
dc.identifier.issue4en_HK
dc.identifier.spage325en_HK
dc.identifier.epage332en_HK
dc.identifier.isiWOS:000231020800008-
dc.publisher.placeJapanen_HK
dc.identifier.scopusauthoridHongmei, J=8661391300en_HK
dc.identifier.scopusauthoridAitchison, JC=7102533858en_HK
dc.identifier.scopusauthoridLacap, DC=9640383000en_HK
dc.identifier.scopusauthoridPeerapornpisal, Y=6506468433en_HK
dc.identifier.scopusauthoridSompong, U=8661391100en_HK
dc.identifier.scopusauthoridPointing, SB=6603986412en_HK

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