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Comment
. 2009 Jun 30;106(26):10400-1.
doi: 10.1073/pnas.0905187106. Epub 2009 Jun 24.

Prochlorococcus: approved for export

Zackary I Johnson  1 , Yajuan Lin
Affiliations
Comment

Prochlorococcus: approved for export

Zackary I Johnson et al. Proc Natl Acad Sci U S A. .
No abstract available

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Fig. 1.
Fig. 1.
Prochlorococcus is the smallest marine phytoplankton and important to the marine nitrogen cycle. (Left) Scanning electron micrograph of Prochlorococcus (strain MIT9312). (Right) Conceptual diagram of the uptake of some major nitrogen compounds by various phytoplankton groups and their contribution to export production. Diatoms and Synechococcus, among other types of phytoplankton, can use new NO3− and therefore contribute substantially to the draw-down of carbon dioxide from the surface ocean (and atmosphere). Prochlorococcus was thought to be in a tightly coupled cycle living only on NH4+ and urea, which is supplied directly or indirectly (by bacterioplankton) by micrograzers. However, Martiny et al. (3) provide strong evidence that Prochlorococcus can also use NO3− and therefore may contribute more substantially to carbon export from surface waters.
See this image and copyright information in PMC

Comment on

References

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