Picobiliphytes: A marine picoplanktonic algal group with unknown affinities to other eukaryotes


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kvalentin [ at ] awi-bremerhaven.de

Abstract

Environmental sequencing has revealed unimagined diversity among eukaryotic picoplankton. Here, a distinct picoplanktonic algal group (table S1), initially detected from 18S rDNA sequences, was hybridized with rRNA probes, detected by Tyramide Signal Amplification - Fluorescent In Situ Hybridization (TSA-FISH) and showed an organelle-like body with orange fluorescence indicative of phycobilins. Using this fluorescence signal, cells were sorted by flow cytometry and probed. Hybridized cells contained a DAPI staining organelle resembling a plastid with a nucleomorph. This suggests that they may be secondary endosymbiotic algae. Pending isolation of living cells and their formal description these algae have been termed picobiliphytes.



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Scopus/ISI peer-reviewed
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Published
Eprint ID
16025
DOI 10.1126/science.1136264

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Not, F. , Valentin, K. U. , Romari, K. , Lovejoy, C. , Massana, R. , Töbe, K. , Vaulot, D. and Medlin, L. (2007): Picobiliphytes: A marine picoplanktonic algal group with unknown affinities to other eukaryotes , Science 315( 5809), 253 - 255 . doi: 10.1126/science.1136264


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