Brittany J. Belin

The paper traces the origin of hopanoids to marine alphaproteobacteria and identifies new gene families involved in their trafficking.

This study identifies cheA2 as the primary chemotaxis driver in Bradyrhizobium diazoefficiens toward soybean seed exudate, revealing genomic context effects and chemotaxis independence from swimming speed.

This study identifies Bradyrhizobium sp. USDA3516 as a symbiont of Aeschynomene americana and shows that branched bacteroid morphology is not essential for effective symbiosis.

This study shows that hopanoid lipids enhance Bradyrhizobium diazoefficiens symbiosis with soybean by improving nitrogen fixation and survival, and affecting gene expression related to motility and nitrogen metabolism.