%ASchvarcz, Christopher%AWilson, Samuel%ACaffin, Mathieu%AStancheva, Rosalina%ALi, Qian%ATurk-Kubo, Kendra%AWhite, Angelicque%AKarl, David%AZehr, Jonathan%ASteward, Grieg%BJournal Name: Nature Communications; Journal Volume: 13; Journal Issue: 1; Related Information: CHORUS Timestamp: 2023-11-17 03:07:43 %D2022%INature Publishing Group %JJournal Name: Nature Communications; Journal Volume: 13; Journal Issue: 1; Related Information: CHORUS Timestamp: 2023-11-17 03:07:43 %K %MOSTI ID: 10379324 %PMedium: X %TOverlooked and widespread pennate diatom-diazotroph symbioses in the sea %X
Persistent nitrogen depletion in sunlit open ocean waters provides a favorable ecological niche for nitrogen-fixing (diazotrophic) cyanobacteria, some of which associate symbiotically with eukaryotic algae. All known marine examples of these symbioses have involved either centric diatom or haptophyte hosts. We report here the discovery and characterization of two distinct marine pennate diatom-diazotroph symbioses, which until now had only been observed in freshwater environments. Rhopalodiaceae diatoms