Microbiology Commons^™

Guano Among Bat Species From Two Regions Shows Influence Of Geography And Diet On Bacterial Community, Rahma Ahmed, Thomas Mcelroy, Shannon Whitney, Lydia Moore

Symposium of Student Scholars

Studies of bat guano have shown that the diversity and structure of associated microbial communities can be related to factors such as host phylogeny, life history and reproductive stage, geography, and diet. Many insectivorous bat species in the southeastern U.S. have generalist diets that may shift seasonally to take advantage of abundant prey species or maximize caloric intake. Seasonal shifts in prey availability or consumption should be reflected in a guano microbiome change. We also expected to detect distinct guano microbiomes within species. Within species, distinct microbial communities related to geography, and finally life history and reproductive stage. We compared …

A Novel Approach For Characterizing The Ultra-Micro Size-Fraction Community, Abdullah Ahmed Salim, Priscilla Nicole Pineda, Isabella Alamilla, Andrew Dean Putt

EURēCA: Exhibition of Undergraduate Research and Creative Achievement

A Novel Approach for Characterizing the Ultra-Micro Size-Fraction Community

Students: Abdullah Salim, Priscilla Pineda, Isabella Alamilla

Mentors/Supervisors: Andrew Putt, Terry C. Hazen

ABSTRACT

The ultra-micro size-fraction (UMSF) are bacteria that can pass through the 0.2 µm pore membrane filters employed in environmental surveys. Despite being ubiquitous and having high metabolic activity, UMSF remain elusive and largely uncultured. Investigations of UMSF are skewed by difficulties in culturing and a lack of techniques for measuring UMSF biogeochemical signatures. This study measures surface stream UMSF community diversity, and community response to the addition of the synthetic pharmaceutical and cosmetic carbon product cyclodextrin which …

Theory On Thermodynamic Constraints To Biogeochemical And Metabolic Diversity, Jordan Okie, Everett Shock

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Quantatative Analysis Of Microbial Abundance Within Arctic Fjord Sediments Assessed Through Direct Counting, Alex Taylor Swystun

EURēCA: Exhibition of Undergraduate Research and Creative Achievement

Microbes found in the marine sediments are responsible for the production of nearly half of the carbon dioxide found in the atmosphere (Arrigo, 2005). The fjords of Svalbard (79°N) are not considered typical marine sediments because high iron content influences unique subsurface redox chemistry. Radiotracer studies have shown that these sediments contain active bacterial sulfate-reducing communities (Finke et al., 2016). In addition to bacteria, archaeal cells within these sediments have been in aggregates encompassed by sulfate-reducing bacteria (Ravenschlag et al., 2001). These anaerobic organisms participate in mediating environmental biogeochemical cycles, including the oxidation of methane (Ravenschlag et al., 2001) and …