PMID- 17472640
OWN - NLM
STAT- MEDLINE
DCOM- 20070524
LR  - 20070502
IS  - 1462-2912 (Print)
IS  - 1462-2912 (Linking)
VI  - 9
IP  - 5
DP  - 2007 May
TI  - Basin-scale distribution patterns of picocyanobacterial lineages in the Atlantic 
      Ocean.
PG  - 1278-90
AB  - Marine picocyanobacteria of the genera Prochlorococcus and Synechococcus are 
      major contributors to oceanic primary production. The genera are genetically 
      diverse, comprising several known ecotypes or lineages. However, little is known 
      of the distribution of these lineages over large geographic areas. Here, we 
      analysed the relative abundance of Prochlorococcus ecotypes and Synechococcus 
      lineages at the ocean basin scale along an Atlantic Meridional Transect (AMT) 
      using dot blot hybridization and fluorescence in situ hybridization (FISH) 
      techniques. The transect covered several contrasting oceanic provinces (gyres, 
      upwelling, temperate regions) as well as environmentally 'equivalent' regions in 
      the northern and southern hemisphere (northern and southern gyres and temperate 
      regions). Flow cytometric data revealed a discrete separation in abundance of 
      major picocyanobacterial genera. Prochlorococcus reached highest abundance in 
      oligotrophic regions, while more mesotrophic waters were dominated by 
      Synechococcus. Individual genetic lineages of both Prochlorococcus and 
      Synechococcus showed highly similar distributions in corresponding regions in the 
      northern and southern hemisphere. In addition, Prochlorococcus showed a 
      distinctive depth distribution, with HLI and HLII ecotypes near the surface and 
      co-occurring LL ecotypes further down in the water column. Conversely, 
      Synechococcus generally revealed no obvious depth preference, but did show highly 
      specific distribution at the horizontal scale, with clades I and IV particularly 
      dominating temperate, mesotrophic waters in both the northern and southern 
      hemispheres. The data clearly reveal that specific picocyanobacterial lineages 
      proliferate in similar oceanic provinces separated by large spatial scales. 
      Furthermore, comparison with an earlier AMT dataset suggests that basin scale 
      distribution patterns for Prochlorococcus ecotypes are remarkably reproducible 
      from year to year.
FAU - Zwirglmaier, Katrin
AU  - Zwirglmaier K
AD  - Department of Biological Sciences, University of Warwick, Gibbet Hill Road, 
      Coventry CV4 7AL, UK.
FAU - Heywood, Jane L
AU  - Heywood JL
FAU - Chamberlain, Katie
AU  - Chamberlain K
FAU - Woodward, E Malcolm S
AU  - Woodward EM
FAU - Zubkov, Mikhail V
AU  - Zubkov MV
FAU - Scanlan, Dave J
AU  - Scanlan DJ
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Environ Microbiol
JT  - Environmental microbiology
JID - 100883692
RN  - 0 (RNA, Bacterial)
RN  - 0 (RNA, Ribosomal, 16S)
SB  - IM
MH  - Atlantic Ocean
MH  - Cyanobacteria/*classification/isolation & purification
MH  - Environmental Monitoring
MH  - Immunoblotting
MH  - In Situ Hybridization, Fluorescence
MH  - Population Density
MH  - RNA, Bacterial/analysis
MH  - RNA, Ribosomal, 16S/*classification
MH  - Seawater/chemistry/*microbiology
EDAT- 2007/05/03 09:00
MHDA- 2007/05/26 09:00
CRDT- 2007/05/03 09:00
PHST- 2007/05/03 09:00 [pubmed]
PHST- 2007/05/26 09:00 [medline]
PHST- 2007/05/03 09:00 [entrez]
AID - EMI1246 [pii]
AID - 10.1111/j.1462-2920.2007.01246.x [doi]
PST - ppublish
SO  - Environ Microbiol. 2007 May;9(5):1278-90. doi: 10.1111/j.1462-2920.2007.01246.x.