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Full-Text Articles in Microbiology
Cattle Access Affects Periphyton Community Structure In Tennessee Farm Ponds., Robert Gerald Middleton
Cattle Access Affects Periphyton Community Structure In Tennessee Farm Ponds., Robert Gerald Middleton
Masters Theses
Cattle farming is vital to the economy of the United States. Frequently, cattle are given access to ponds and streams for water. The relative impacts of cattle access in natural water sources on the periphyton community have been rarely investigated. Periphyton is the basis of the aquatic food web, and community composition can serve as a bioindicator of pollution. Thus, my objectives were to quantify the effects of cattle access in aquatic lentic systems on periphyton community structure and biovolume, identify taxa that were associated with cattle access, and identify abiotic mechanisms that might be driving assemblage changes. I conducted …
Agricultural Soil Bacteria; A Study Of Collection, Cultivation, And Lysogeny, Katherine Elizabeth Sides
Agricultural Soil Bacteria; A Study Of Collection, Cultivation, And Lysogeny, Katherine Elizabeth Sides
Masters Theses
The aim of this research project was to test new collection and cultivation techniques that may increase the range of cultivable diversity of soil bacteria. Fortified BioSep beads were employed in situ to capture soil bacteria, and the success of the beads was analyzed using Phylochip microarray analysis. In the cultivation phase, three different media substrates and increased incubation period were evaluated for the ability to select novel or rare bacteria. Over 700 agricultural soil bacterial isolates were classified, including a rare Gemmatimonadetes sp., a rare Verrucomicrobia sp., several Acidobacteria sp., and many novel isolates. Land management, media, and incubation …