000000775 001__ 775 000000775 005__ 20260112151905.0 000000775 0247_ $$2DOI$$a10.6083/M4G73BQ8 000000775 037__ $$aETD 000000775 245__ $$aThe chemical biology of siderophores from the bacterial endosymbiots of shipworms 000000775 260__ $$bOregon Health and Science University 000000775 269__ $$a2011 000000775 336__ $$aDissertation 000000775 502__ $$bPh.D. 000000775 502__ $$gEnvironmental Science and Engineering 000000775 520__ $$aShipworms (Teredinidae) rely on gill-associated bacterial endosymbionts for wood digestion and nitrogen fixation. This study investigates iron acquisition strategies in these symbionts, focusing on siderophore production. Teredinibacter turnerae was found to synthesize a novel catecholate siderophore, turnerbactin, and its biosynthetic pathway was characterized. Mass spectrometry and genomic analyses revealed widespread siderophore potential among symbionts, predominantly catecholate types. Functional assays indicate siderophores may mediate competitive interactions rather than cooperative iron acquisition within the symbiotic community. These findings highlight siderophores as key factors in symbiont ecology and suggest roles in nutrient acquisition and microbial dynamics. 000000775 540__ $$fCC BY 000000775 542__ $$fIn copyright - single owner 000000775 650__ $$aSymbiosis$$026695 000000775 650__ $$aMarine Biology$$021842 000000775 650__ $$aSiderophores$$029823 000000775 650__ $$aWood$$027990 000000775 650__ $$aDigestion$$017807 000000775 6531_ $$ashipworms 000000775 691__ $$aSchool of Medicine$$041369 000000775 692__ $$aDepartment of Environmental and Biomolecular Systems$$041414 000000775 7001_ $$aHan, Andrew$$uOregon Health and Science University$$041354 000000775 7201_ $$aHaygood, Margo$$uOregon Health and Science University$$041354$$7Personal$$eAdvisor 000000775 8564_ $$982b8493d-fd6e-4c4b-9b32-61cd1c9349d4$$s3194985$$uhttps://digitalcollections.ohsu.edu/record/775/files/778_etd.pdf$$ePublic$$293a8407dd27d2f87eb6212eead7b9b3f$$31 000000775 905__ $$a/rest/prod/r7/81/wg/00/r781wg00k 000000775 909CO $$ooai:digitalcollections.ohsu.edu:775$$pstudent-work 000000775 980__ $$aTheses and Dissertations