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Curr Opin Plant Biol. 2006 Jun;9(3):264-73. Epub 2006 Apr 17.

An ecological and evolutionary context for integrated nitrogen metabolism and related signaling pathways in marine diatoms.

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1
Princeton University, Department of Geosciences, Guyot Hall, Princeton, New Jersey 08540, USA.

Abstract

Whole-genome sequence analysis has revealed that diatoms contain genes and pathways that are novel in photosynthetic eukaryotes. More generally, the unique evolutionary footprint of the chromalveolates, which includes a genome fusion between a heterotrophic protist and a red alga in addition to a major prokaryotic influence, has fostered their inheritance of a unique complement of metabolic capabilities. Many aspects of nitrogen metabolism and cell signaling appear to be linked in diatoms. This new perspective provides a basis for understanding the ecological dominance of diatoms in contemporary oceans.

PMID:
16603409
DOI:
10.1016/j.pbi.2006.03.013
[Indexed for MEDLINE]
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