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Diversity of active marine picoeukaryotes in the Eastern Mediterranean Sea unveiled using photosystem-II psbA transcripts

Journal Article · · The ISME Journal
 [1];  [2];  [3];  [4];  [5];  [5];  [3];  [4];  [2]
  1. Faculty of Biology, Technion-Israel Institute of Technology , Haifa , Israel; MIT
  2. Faculty of Biology, Technion-Israel Institute of Technology , Haifa , Israel
  3. Department of Civil and Environmental Engineering, Massachusetts Institute of Technology , Cambridge, MA , USA
  4. UPMC (Paris-06) and CNRS, UMR7144, Station Biologique de Roscoff , Roscoff Cedex , France
  5. Mina and Everard Faculty of Life Sciences, Bar-Ilan University , Ramat Gan , Israel
+ Show Author Affiliations
In vast areas of the oceans, most of the primary production is performed by cells smaller than 2–3 μm in diameter (picophytoplankton). In recent years, several in situ molecular studies showed a broad genetic diversity of small eukaryotes by sequencing 18S rRNA genes. Compared with photosynthetic cyanobacteria that are dominated by two genera, Prochlorococcus and Synechococcus, marine photosynthetic picoeukaryotes (PPEs) are much more diverse, with virtually every algal class being represented. However, the genetic diversity and ecology of PPEs are still poorly described. Here, we show using in situ molecular analyses of psbA transcripts that PPEs in the Eastern Mediterranean Sea are highly diverse, probably very active, and dominated by groups belonging to the red algal lineages, Haptophyta, Heterokontophyta (also called Stramenopiles), and Cryptophyta.
Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE SC Office of Biological and Environmental Research (SC-23)
DOE Contract Number:
FG02-08ER64516
OSTI ID:
1089360
Report Number(s):
DOE-FG02-08ER64516-Final
Journal Information:
The ISME Journal, Journal Name: The ISME Journal Journal Issue: 8 Vol. 4; ISSN 1751-7362
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English

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