The free-living wellspring of symbiotic nitrogen fixation in Bradyrhizobium
Proceedings of the National Academy of Sciences, Volume 123, Issue 31, August 2026. SignificanceFor over a century, nitrogen-fixing bacteria called rhizobia have been celebrated for their symbiotic partnership with legumes like soybeans and peas. This study challenges the view that this symbiotic lifestyle was the original, advanced ...
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