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Article: Diverse hypolithic refuge communities in the McMurdo Dry Valleys

TitleDiverse hypolithic refuge communities in the McMurdo Dry Valleys
Authors
KeywordsAntarctic
Cryptic
Cyanobacteria
Hypoliths
Microbial Diversity
Issue Date2010
PublisherCambridge University Press. The Journal's web site is located at http://journals.cambridge.org/action/displayJournal?jid=ANS
Citation
Antarctic Science, 2010, v. 22 n. 6, p. 714-720 How to Cite?
AbstractHyper-arid deserts present extreme challenges to life. The environmental buffering provided by quartz and other translucent rocks allows hypolithic microbial communities to develop on sub-soil surfaces of such rocks. These refuge communities have been reported, for many locations worldwide, to be predominantly cyanobacterial in nature. Here we report the discovery in Antarcticas hyper-arid McMurdo Dry Valleys of three clearly distinguishable types of hypolithic community. Based on gross colonization morphology and identification of dominant taxa, we have classified hypolithic communities as Type I (cyanobacterial dominated), Type II (fungal dominated) and Type III (moss dominated). This discovery supports a growing awareness of the high biocomplexity in Antarctic deserts, emphasizes the possible importance of cryptic microbial communities in nutrient cycling and provides evidence for possible successional community processes within a cold arid landscape. Copyright © 2010 Antarctic Science Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/179221
ISSN
2015 Impact Factor: 1.336
2015 SCImago Journal Rankings: 0.728
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCowan, DAen_US
dc.contributor.authorKhan, Nen_US
dc.contributor.authorPointing, SBen_US
dc.contributor.authorCary, SCen_US
dc.date.accessioned2012-12-19T09:53:11Z-
dc.date.available2012-12-19T09:53:11Z-
dc.date.issued2010en_US
dc.identifier.citationAntarctic Science, 2010, v. 22 n. 6, p. 714-720en_US
dc.identifier.issn0954-1020en_US
dc.identifier.urihttp://hdl.handle.net/10722/179221-
dc.description.abstractHyper-arid deserts present extreme challenges to life. The environmental buffering provided by quartz and other translucent rocks allows hypolithic microbial communities to develop on sub-soil surfaces of such rocks. These refuge communities have been reported, for many locations worldwide, to be predominantly cyanobacterial in nature. Here we report the discovery in Antarcticas hyper-arid McMurdo Dry Valleys of three clearly distinguishable types of hypolithic community. Based on gross colonization morphology and identification of dominant taxa, we have classified hypolithic communities as Type I (cyanobacterial dominated), Type II (fungal dominated) and Type III (moss dominated). This discovery supports a growing awareness of the high biocomplexity in Antarctic deserts, emphasizes the possible importance of cryptic microbial communities in nutrient cycling and provides evidence for possible successional community processes within a cold arid landscape. Copyright © 2010 Antarctic Science Ltd.en_US
dc.languageengen_US
dc.publisherCambridge University Press. The Journal's web site is located at http://journals.cambridge.org/action/displayJournal?jid=ANSen_US
dc.relation.ispartofAntarctic Scienceen_US
dc.subjectAntarcticen_US
dc.subjectCrypticen_US
dc.subjectCyanobacteriaen_US
dc.subjectHypolithsen_US
dc.subjectMicrobial Diversityen_US
dc.titleDiverse hypolithic refuge communities in the McMurdo Dry Valleysen_US
dc.typeArticleen_US
dc.identifier.emailPointing, SB: pointing@hkucc.hku.hken_US
dc.identifier.authorityPointing, SB=rp00771en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1017/S0954102010000507en_US
dc.identifier.scopuseid_2-s2.0-79551686363en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79551686363&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume22en_US
dc.identifier.issue6en_US
dc.identifier.spage714en_US
dc.identifier.epage720en_US
dc.identifier.isiWOS:000285470300012-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridCowan, DA=24425600900en_US
dc.identifier.scopusauthoridKhan, N=39861594900en_US
dc.identifier.scopusauthoridPointing, SB=6603986412en_US
dc.identifier.scopusauthoridCary, SC=7006567885en_US

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