Journal
SCIENCE
Volume 336, Issue 6081, Pages 608-611Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1218344
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- European Bioinformatics Institute [ERP001227]
- German Federal Ministry of Education and Research (BMBF) [03F0480A]
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Phytoplankton blooms characterize temperate ocean margin zones in spring. We investigated the bacterioplankton response to a diatom bloom in the North Sea and observed a dynamic succession of populations at genus-level resolution. Taxonomically distinct expressions of carbohydrate-active enzymes (transporters; in particular, TonB-dependent transporters) and phosphate acquisition strategies were found, indicating that distinct populations of Bacteroidetes, Gammaproteobacteria, and Alphaproteobacteria are specialized for successive decomposition of algal-derived organic matter. Our results suggest that algal substrate availability provided a series of ecological niches in which specialized populations could bloom. This reveals how planktonic species, despite their seemingly homogeneous habitat, can evade extinction by direct competition.
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