English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/243295
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Vertical distribution and temporal variation of marine planktonic archaea in the Gerlache Strait, Antarctica, during early spring

AuthorsMassana, Ramon CSIC ORCID ; Taylor, Lance T.; Murray, Alison; Wu, Key Y.; Jeffrey, W.H.; DeLong, Edward F.
Issue DateJun-1998
PublisherAssociation for the Sciences of Limnology and Oceanography
CitationLimnology and Oceanography 43(4): 607-617 (1998)
AbstractA station located in the Gerlache Strait (Antarctic Peninsula) was sampled during early spring to determine the vertical distribution of marine planktonic archaea and to further describe the dynamic environment where they live. Chlorophyll concentration indicated that sampling occurred during the early stages of austral spring algal development. As expected, prokaryote abundance was higher at surface than at depth, and prokaryotic activity estimated by leucine incorporation was low at the surface and extremely low at 500 m. The relative abundance of planktonic archaeal, eucaryal, and bacterial ribosomal RNA was determined by quantitative rRNA hybridization, and the performance of two different universal probes used to normalize group-specific probe hybridization response was compared. Archaeal rRNA was detected in all samples analyzed, and was more abundant at depth (up to 25% of total rRNA) than at the surface. In both years, the archaeal signal decreased during the sampling period, particularly at surface. Most of the archaeal signal was attributable to group I archaea, affiliated with the kingdom Crenarchaeota. Planktonic euryarchaeotes (group II archaea) showed a larger contribution to the archaeal assemblage in surface waters than at depth. In total, our results verify that planktonic archaea are dynamic and abundant components in marine picoplankton assemblages of the Antarctic Peninsula
Description11 pages, 7 figures, 3 tables
Publisher version (URL)https://doi.org/10.4319/lo.1998.43.4.0607
URIhttp://hdl.handle.net/10261/243295
DOIhttp://dx.doi.org/10.4319/lo.1998.43.4.0607
ISSN0024-3590
Appears in Collections:(ICM) Artículos
Files in This Item:
File Description SizeFormat 
Massana_et_al_1998.pdf3,66 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.