TWO MARINE SPONGES, LENDENFELDIA CHONDRODES AND HYMENIACIDON HELIOPHILA, AND THEIR MICROBIAL SYMBIONTS: ROLES IN MARINE PHOSPHORUS CYCLING.

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dc.contributor.advisorHill, Russellen_US
dc.contributor.authorJonas, Laurenen_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2021-07-14T05:36:16Z
dc.date.available2021-07-14T05:36:16Z
dc.date.issued2021en_US
dc.description.abstractMarine sponges have emerged as major players within coral reef biogeochemical cycles, facilitating intake and release of carbon, nitrogen, and phosphorus. The majority of studies have investigated the role of sponges in transforming dissolved carbon and nitrogen; however, the same breadth of insights has not been extended to phosphorus. This study uses 32P-labeled orthophosphate and ATP to determine that two marine sponges, Lendenfeldia chondrodes and Hymeniacidon heliophila, both rapidly take up ambient dissolved inorganic phosphate and dissolved organic phosphorus. Subsequent genetic analysis and chemical extraction showed that sponge symbionts store phosphorus in the form of energy-rich polyphosphate (poly-P). L. chondrodes, a sponge from oligotrophic habitats and with a microbiome dominated by cyanobacterial symbionts, stores more phosphorus as poly-P (6–8%) than H. heliophila (0.55%), a eutrophic sponge with low cyanobacterial abundance. This work adds new insights to the roles of the sponge holobiont in cycling the crucial element, phosphorus.en_US
dc.identifierhttps://doi.org/10.13016/0z0p-bkff
dc.identifier.urihttp://hdl.handle.net/1903/27466
dc.language.isoenen_US
dc.subject.pqcontrolledMicrobiologyen_US
dc.subject.pqcontrolledBiogeochemistryen_US
dc.subject.pquncontrolledbacteriaen_US
dc.subject.pquncontrolledmarineen_US
dc.subject.pquncontrollednutrienten_US
dc.subject.pquncontrolledphosphorusen_US
dc.subject.pquncontrolledspongeen_US
dc.subject.pquncontrolledsymbionten_US
dc.titleTWO MARINE SPONGES, LENDENFELDIA CHONDRODES AND HYMENIACIDON HELIOPHILA, AND THEIR MICROBIAL SYMBIONTS: ROLES IN MARINE PHOSPHORUS CYCLING.en_US
dc.typeThesisen_US

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