Exploring the microbiome of an ocean bacteria

Microbiome works with cynobacteria to create a community that thrives. Click here to read the full article or an excerpt below.


As the Trichodesmium nitrogen fixation genes turned on and off, genes for nitrogen use in the microbiome followed in lockstep. The same patterns appeared in Trichodesmium carbon fixation genes and microbiome carbon consumption genes. On the other hand, we also found evidence that the microbiome earns their keep on colonies by using up the oxygen produced by photosynthesis, and breaking down the sugars back into carbon dioxide—essentially breathing, eating, and exhaling just like animals do. By removing oxygen, which inhibits , and resupplying carbon dioxide, the microbiome ensures a favorable setting for Trichodesmium to continue fixing nitrogen and photosynthesizing. To us, these links suggested a tight symbiotic relationship that could have a profound geochemical impact.


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