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dc.contributor.advisorJordan, Heather
dc.contributor.authorDidesch, Taylor
dc.date.accessioned2020-07-17T18:43:27Z
dc.date.available2020-07-17T18:43:27Z
dc.identifier.urihttps://hdl.handle.net/11668/18016
dc.description.abstractThe microorganisms that live in and on a host (the microbiome) influence host phenotype, health, and behavior in plants and animals. However, the effects of the host and environment on the composition of microbiome communities are unclear. This is especially true in arid and semi-arid environments such as deserts that filter many microorganisms. This study investigated variation in phyllosphere microbiotal bacterial assemblages of prickly pear cactus (Opuntia) across differing spatial scales, ecoregions, and taxa throughout Texas at two timepoints. I expected bacterial assemblages to differ significantly among Texas ecoregions and among species. Results support significant influences on bacterial assemblage composition including ecoregion, taxonomy, and potentially seasonal time of sampling. The dry season timepoint yielded high microbial diversity and abundance across species and ecoregions, with different species and ecoregions harboring unique microbial communities. The rainy season timepoint yielded significantly lower levels of microbial diversity and abundance across species and ecoregions.en_US
dc.subjectecologyen_US
dc.subjectmicrobiologyen_US
dc.subjectmicrobiomeen_US
dc.subjectphyllosphereen_US
dc.subjectcactien_US
dc.subjectopuntiaen_US
dc.subjectdeserten_US
dc.titleExploring the role of host species and abiotic factors on epiphytic bacterial communities in prickly pear cactusen_US
dc.typeGraduate Thesisen_US
dc.publisher.departmentBiological Sciencesen_US
dc.publisher.collegeCollege of Arts and Sciencesen_US
dc.date.authorbirth1995-01-21
dc.subject.degreeMaster of Scienceen_US
dc.subject.majorBiological Sciencesen_US
dc.contributor.committeeBrooks, Christopher P.
dc.contributor.committeeBarton, Brandon
dc.date.defense2020-03-01
dc.date.graduation2020-08


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