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Full-Text Articles in Life Sciences
Antibiotic Resistance Of Bacteria Isolated From Soils, Jessica Vaughan
Antibiotic Resistance Of Bacteria Isolated From Soils, Jessica Vaughan
Mahurin Honors College Capstone Experience/Thesis Projects
After the discovery of antibiotics, antibiotics have been increasingly implemented into human and veterinary medicine. In addition, antibiotics are inserted into animal feed for non-therapeutic purposes, which potentially leads to the development of antibiotic-resistant pathogens. When the livestock excrete waste onto the soil, the antibiotic resistant bacteria are introduced to the environment. With soil collected from different farms throughout the Bowling Green area, the microbial communities were analyzed to determine its bacterial compositions and their resistances to common antibiotics through a modified agar dilution technique. Once resistant colonies were isolated, they underwent more testing to determine if the colonies could …
Does Soil Moisture Availability Explain Liana Seedling Distribution Across A Tropical Rainfall Gradient?, Eric Manzane-Pinzon, Guillermo Goldstein, Stefan A. Schnitzer
Does Soil Moisture Availability Explain Liana Seedling Distribution Across A Tropical Rainfall Gradient?, Eric Manzane-Pinzon, Guillermo Goldstein, Stefan A. Schnitzer
Biological Sciences Faculty Research and Publications
Liana density tends to increase with decreasing rainfall and increasing seasonality. However, the pattern of liana distribution may be due to differences in soil water retention capacity, not rainfall and seasonality per se. We tested the effect of rainfall and soil substrate with respect to the distribution of liana seedlings in six sites across a rainfall gradient from the wet Atlantic to the dry Pacific in central Panama. Soils were either limestone, with low water-holding capacity, or laterite, with higher water-holding capacity. We sampled liana seedlings at each site using three 1 × 100 m transect. We found that …
Biodiversity Of Terrestrial Cyanobacteria Of The South Ural Region, Lira A. Gaysina, Markéta Bohunicka, Václava Hazukova, Jeffrey R. Johansen
Biodiversity Of Terrestrial Cyanobacteria Of The South Ural Region, Lira A. Gaysina, Markéta Bohunicka, Václava Hazukova, Jeffrey R. Johansen
2018 Faculty Bibliography
South Ural is a territory with a unique geographical position and heterogeneous natural conditions. Unexplored biodiversity of the terrestrial cyanobacteria of this territory is very high. We undertook a floristic study covering all botanical-geographical zones of the Bashkiria and Bredinskiy district of the Chelyabinsk region. In a total of 85 soil samples collected, 56 species of cyanobacteria were identified. The number of cyanobacteria was highest in the boreal-forest zone (39 species) and notably lower in the other zones (18, 29, and 24 species for broad-leaved forest, forest steppe and steppe regions, respectively). Leptolyngbya voronichiniana, Leptolyngbya foveolarum, cf. Trichocoleus hospitus, Pseudophormidium …