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Niche specialization of bacteria in permanently ice-covered lakes of the McMurdo Dry Valleys, Antarctica

Cited 19 time in wos
Cited 18 time in scopus

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dc.contributor.authorKwon, Miye-
dc.contributor.authorKim, Ok-Sun-
dc.contributor.authorJohn C Priscu-
dc.contributor.authorKim, Sang Jong-
dc.contributor.authorHong, Soon Gyu-
dc.contributor.authorLee, Jaejin-
dc.contributor.authorCristina Takacs-Vesbach-
dc.contributor.authorKim, Mincheol-
dc.date.accessioned2018-03-20T13:53:47Z-
dc.date.available2018-03-20T13:53:47Z-
dc.date.issued2017-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/6398-
dc.description.abstractPerennially ice-covered lakes in the McMurdo Dry Valleys are chemically stratified with depth and have distinct biological gradients. Despite the long-term studies on these unique environments there remains a paucity of data on microbial community structure in the water columns of these lakes. We investigated bacterial diversity in five different ice-covered Antarctic lakes using 16S rRNA gene-based pyrosequencing. Distinct communities were present in each lake, paralleling the unique biogeochemical characteristics of each environment. Certain bacterial lineages were confined exclusively to a specific depth of each lake. For example, Candidate division WM88 occurred at 15 m depth of Lake Fryxell solely, while unknown lineages of Chlorobi are found only at the depth of 18 m in Lake Miers. The 30 m depth of East and West Lobe Bonney was occupied by two distinct Firmicutes classes. Redundancy analysis revealed that community variation of bacterioplankton was explained by the different chemistries unique to each lake and depth. In particular, assemblages from deeper layers beneath the chemocline had distinct biogeochemical associations differing from those of the upper layers. These patterns of community composition may represent bacterial adaptations to the extreme and unique biogeochemical gradients of ice-covered lakes in the McMurdo Dry Valleys.-
dc.languageEnglish-
dc.subjectMicrobiology-
dc.titleNiche specialization of bacteria in permanently ice-covered lakes of the McMurdo Dry Valleys, Antarctica-
dc.title.alternative남극 드라이밸리에 영구적으로 얼음으로 덮여있는 호수에서의 미생물 군집 연구-
dc.typeArticle-
dc.identifier.bibliographicCitationKwon, Miye, et al. 2017. "Niche specialization of bacteria in permanently ice-covered lakes of the McMurdo Dry Valleys, Antarctica". <em>ENVIRONMENTAL MICROBIOLOGY</em>, 19(6): 2258-2271.-
dc.citation.titleENVIRONMENTAL MICROBIOLOGY-
dc.citation.volume19-
dc.citation.number6-
dc.identifier.doi10.1111/1462-2920.13721-
dc.citation.startPage2258-
dc.citation.endPage2271-
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2015:13.008-
dc.subject.keyword16S rRNA gene-
dc.subject.keywordAntarctic Ice-covered lakes-
dc.subject.keywordbacterial diversity-
dc.subject.keywordbiogeochemical properties-
dc.subject.keywordpyrosequencing-
dc.identifier.localId2017-0030-
dc.identifier.scopusid2-s2.0-85017470917-
dc.identifier.wosid000404007700015-
Appears in Collections  
2012-2013, Preliminary study on the response of terrestrial organisms in Victoria Land of Antarctica by environmental changes (12-13) / Kim, Ok-Sun (PP12050; PP13050)
2014-2018, Crustal evolution of Victoria Land, Antarctica, and the formative process of planets (14-18) / Lee, Jong Ik (PM14030; PM15030; PM16030; PM17030)
2014-2016, Long-Term Ecological Researches on King George Island to Predict Ecosystem Responses to Climate Change (14-16) / Hong; Soon Gyu (PE14020; PE15020; PE16020)
2017-2018, The Antarctic Korean Route Expedition and Development of Technologies for Deep Ice Coring and Hot Water Drilling (17-18) / Lee, Jong Ik (PE17110; PE18110)
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