Analysis of the global ocean sampling (GOS) project for trends in iron uptake by surface ocean microbes.

ABSTRACT: Microbial metagenomes are DNA samples of the most abundant, and therefore most successful organisms at the sampling time and location for a given cell size range. The study of microbial communities via their DNA content has revolutionized our understanding of microbial ecology and evolution. Iron availability is a critical resource that limits microbial communities' growth in many oceanic areas. Here, we built a database of 2319 sequences, corresponding to 140 gene families of iron metabolism with a large phylogenetic spread, to explore the microbial strategies of iron acquisition in the ocean's bacterial community. We estimate iron metabolism strategies from metagenome gene content and investigate whether their prevalence varies with dissolved iron concentrations obtained from a biogeoche

SUBMITTER: Toulza E 

PROVIDER: S-EPMC3281889 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature