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Full-Text Articles in Physical Sciences and Mathematics
Sex And The Seas: Gene Transfer Agents, Elizabeth Young
Sex And The Seas: Gene Transfer Agents, Elizabeth Young
USF Tampa Graduate Theses and Dissertations
Gene Transfer Agents (GTAs) are phage-like pthesiss that are produced by many alpha proteobacteria in late stationary growth phase and are capable of transferring chromosomal genes (termed "constitutive transduction"). Examination of alpha proteobacterial genomic sequences indicated widespread occurrence of GTA-like elements. The goal of this study was to investigate gene transfer potential of GTAs of marine alpha proteobacteria in culture as well as in natural marine environments. Another goal was to determine the potential of bacterial symbionts from zooxanthellae and coral to genetically transfer beneficial properties between symbionts. Ruegeria mobilis (ID 45A6) was isolated from cultures of the coral endosymbiotic …
Coastal Processes And Anthropogenic Factors Influencing The Geomorphic Evolution Of Weedon Island, Florida, Jeanne Lambert
Coastal Processes And Anthropogenic Factors Influencing The Geomorphic Evolution Of Weedon Island, Florida, Jeanne Lambert
USF Tampa Graduate Theses and Dissertations
Weedon Island, a peninsula located on the western inner shoreline of Tampa Bay, Florida, is the location of a collaborative geological and archaeological project that aims to relate the present day geomorphology to natural processes and human occupational activity during the middle to late Holocene. The area is known for extensive archaeological sites, which were originally investigated in the 1920s, although they have received relatively little scientific attention during most of the last century. We hypothesize that activities associated with pre-historic human occupation of Weedon Island at various times during the last ca. 5,000 years influenced the geomorphic evolution of …