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Coevolution of metal availability and nitrogen assimilation in cyanobacteria and algae.

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Glass, Jennifer B, Wolfe-Simon, Felisa, and Anbar, Ariel D, Coevolution of metal availability and nitrogen assimilation in cyanobacteria and algae.: .

Summary

Marine primary producers adapted over eons to the changing chemistry of the oceans. Because a number of metalloenzymes are necessary for N assimilation, changes in the availability of transition metals posed a particular challenge to the supply of this critical nutrient that regulates marine biomass and productivity. Integrating recently developed geochemical, biochemical, and genetic evidence, we infer that the use of metals in N assimilation - particularly Fe and Mo - can be understood in terms of the history of metal availability through time. Anoxic, Fe-rich Archean oceans were conducive to the evolution of Fe-using enzymes that assimilate abiogenic NH(4)(+) and NO(2)(-). The N demands of an expanding biosphere were satisfied by [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS Export <br> On - Wed Sep 19 08:08:31 MDT 2012

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Title Citation Coevolution of metal availability and nitrogen assimilation in cyanobacteria and algae.

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