{"588392":{"#nid":"588392","#data":{"type":"event","title":"Environmental Acquisition of Ecologically-Important Microbes in a Tractable Insect-Symbiont Model","body":[{"value":"\u003Cp\u003ENicole Gerardo*\u003Csup\u003E1\u003C\/sup\u003E, Tarik Acevedo\u003Csup\u003E1\u003C\/sup\u003E, Tiffanie Alcaide\u003Csup\u003E1\u003C\/sup\u003E, Greg Fricker\u003Csup\u003E1\u003C\/sup\u003E, Justine Garcia\u003Csup\u003E1\u003C\/sup\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EInsects have long served as key systems for addressing questions concerning the ecological and evolutionary underpinnings of both harmful and beneficial host-microbe interactions. Complete understanding of the dynamics and importance of these associations benefits from systems that include both experimentally tractable microbes and experimentally tractable hosts. Here, we exploit systems in which true bugs associate with primary bacterial symbionts that can be cultivated and experimentally introduced to hosts. We explore symbiont variation in natural populations, the consequences of the association for host fitness, and the impacts of the infection on the ability of the insects to vector a bacterial plant pathogen. We demonstrate that dominant members of the hosts\u0026rsquo; symbiotic community are bacteria in the genus \u003Cem\u003EBurkholderia. \u003C\/em\u003EDespite the fact that fitness assays indicate that association with \u003Cem\u003EBurkholderia\u003C\/em\u003E is critical for host fitness, the symbionts are not transmitted directly to the offspring but are acquired from the environment. \u003Cem\u003EBurkholderia \u003C\/em\u003Ecan suppress growth of vectored pathogens both \u003Cem\u003Ein vitro \u003C\/em\u003Eand \u003Cem\u003Ein vivo\u003C\/em\u003E, however the dynamics of such suppression are dependent on strain-level variation, suggesting the outcome of symbiont-pathogen coinfection are likely complex in natural populations.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E*presenting author\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Csup\u003E1\u003C\/sup\u003EDepartment of Biology, Emory University, Atlanta, GA, USA\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Seminar by Nicole Gerardo from Emory University"}],"uid":"27964","created_gmt":"2017-03-07 18:28:16","changed_gmt":"2017-04-20 16:18:52","author":"Jasmine Martin","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2017-04-27T12:00:00-04:00","event_time_end":"2017-04-27T13:00:00-04:00","event_time_end_last":"2017-04-27T13:00:00-04:00","gmt_time_start":"2017-04-27 16:00:00","gmt_time_end":"2017-04-27 17:00:00","gmt_time_end_last":"2017-04-27 17:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"1275","name":"School of Biological Sciences"},{"id":"1278","name":"College of Sciences"}],"categories":[],"keywords":[{"id":"166892","name":"School of Biological Sciences Seminar"},{"id":"174101","name":"Nicole Gerardo"},{"id":"167225","name":"Sam Brown"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}