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Full-Text Articles in Organisms

S-Layer Increases Predation Ability Of Myxococcus Xanthus Aug 2021

S-Layer Increases Predation Ability Of Myxococcus Xanthus

Symposium of Student Scholars

Background: Myxococcus xanthus is a gram-negative soil bacterium that exhibits micro-predatory activities. When starved, M. xanthus produces resistant spores within fruiting bodies for survival. The S-layer is a paracrystalline structure intertwined in many different patterns and is composed of proteins or glycoproteins. A species that produces the S-layer is Aeromonas. A. salmonicida is a strain of Aeromonas that infects fish. A. hydrophila is another pathogenic strain that causes a wide range of human diseases. We investigated the ability of the S-layer to protect Aeromonas from predation by Myxobacteria. Methods: Myxococcus and prey Aeromonas cultures were standardized to a concentration …


Neuroactivational And Behavioral Correlates Of Psychosocial Stress-Induced Cocaine Seeking In Rats, Nicole M. Hinds, Ireneusz D. Wojtas, Desta M. Pulley, Stephany J. Mcdonald, Samantha De Guzman, Nicole E. Hubbard, Colin M. Kulick-Soper, Jessica J. Debski, Bianca Patel, Daniel Manvich May 2021

Neuroactivational And Behavioral Correlates Of Psychosocial Stress-Induced Cocaine Seeking In Rats, Nicole M. Hinds, Ireneusz D. Wojtas, Desta M. Pulley, Stephany J. Mcdonald, Samantha De Guzman, Nicole E. Hubbard, Colin M. Kulick-Soper, Jessica J. Debski, Bianca Patel, Daniel Manvich

Rowan-Virtua Research Day

A prominent feature of cocaine abuse is a high risk of relapse even despite prolonged periods of abstinence. Psychosocial stress is thought to be a major contributor to the onset of cocaine craving and relapse in human substance abusers, yet most preclinical models of stress-induced relapse employ physical stressors (e.g., unpredictable footshock) or pharmacological stressors (e.g., yohimbine to elicit a drug seeking response) and do not rely upon psychosocial stress per se. Importantly, social stressors are well known to activate distinct neural circuits within the brain as compared to other stressors. It is therefore possible that currently available animal models …


Identification Of Parasites From Wisconsin And Minnesota Diving Ducks In The Winona Area, Morgan Condon, Kimberly Bates Apr 2021

Identification Of Parasites From Wisconsin And Minnesota Diving Ducks In The Winona Area, Morgan Condon, Kimberly Bates

Ramaley Celebration

Many different diving ducks in the Midwest are hosts to parasites like cestodes, trematodes, and nematodes. These parasites often live in the ducks gastrointestinal tract and use the ducks chyme and intestinal tissues to thrive. For this research, local hunters volunteered to donate diving duck carcasses they harvested. Ducks donated were cut open on the ventral side from esophagus to cloaca. Major organs were separated into bottles containing 0.85% saline, shaken, settled, and then the supernatant removed multiple times to isolate any parasites residing within the duck’s organs and tissues. Any parasites found in dissected diving ducks organ wash were …