In the deep ocean, these bacteria play a key role in trapping carbon
The organisms oxidize the nitrogen compound nitrite to “fix” inorganic carbon dioxide
![ocean water samples](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/11/112117_CG_ocean-carbon_feat.jpg?fit=860%2C460&ssl=1)
DEEP FIXERS Scientists collected ocean water at different depths using this rosette (center), revealing that an abundant group of nitrite-oxidizing bacteria called Nitrospinae dominate carbon “fixation” in the deep ocean.
Mar Nieto-Cid