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Full-Text Articles in Life Sciences

Regulation Of The Ampa Glutamate Receptor Homolog Glr-1 At The Endoplasmic Reticulum In C. Elegans., Sam Witus, Lina Dahlberg May 2015

Regulation Of The Ampa Glutamate Receptor Homolog Glr-1 At The Endoplasmic Reticulum In C. Elegans., Sam Witus, Lina Dahlberg

Scholars Week

In C. elegans, the glutamate receptor GLR-1 functions in the nervous system to decode environmental stimuli and sensory experiences, and to regulate locomotion and the formation of long-term memory. C. elegans GLR-1 is homologous to mammalian glutamate receptors, and we can use this simple organism as a system to better understand the life cycle of human receptors (1). Because GLR-1 is a membrane protein, it is first assembled in the interior of a neuron, and then it is transported to the membrane at the surface of the cell so that it can receive chemical signals (glutamate) from the environment. Currently, …


Importance Of Ubiquitin-Mediated Degradation On Diacetyl Chemosensation In C. Elegans, Ellen Zocher, Nelson Ruth May 2015

Importance Of Ubiquitin-Mediated Degradation On Diacetyl Chemosensation In C. Elegans, Ellen Zocher, Nelson Ruth

Scholars Week

Ubiquitin is a small regulatory protein that can be attached to other proteins in a cell, tagging them for destruction. Ubiquitin plays a critical role in regulating the abundance and activity of many proteins. We examined the role of ubiquitin and the cellular pathway it follows in olfactory neurons in the model organism C. elegans. C. elegans senses and moves towards sources of diacetyl, a volatile compound generated by the bacteria it consumes. This behavior is dependent on the diacetyl receptor, ODR-10. We hypothesized that the ubiquitin-mediated degradation system is involved in the regulation of this sensory receptor. Using transgenic …


Can Collection Specimen Data Reveal Temporal Shifts Due To Climate Change?, Julie Maurer May 2015

Can Collection Specimen Data Reveal Temporal Shifts Due To Climate Change?, Julie Maurer

Scholars Week

Climate change is altering the distribution, behavior, and migration patterns of many species. Typically, these responses are documented studies in which standardized methods are used to collect population or behavioral data over several years. Multi-decade studies are rare and few predate the recent dramatic increase in global temperatures, limiting our ability to understand long-term consequences of climate change. Natural history (NH) collections offer a potential solution; they hold a wealth of species occurrence documentation spanning from decades to centuries. However, because the sampling of natural history collectors is spatially and temporally haphazard, it remains unclear whether NH data is useful …


Organic Content And Silt To Sand Ratio In Correlation With Porewater Sulfide Concentrations Found In Eel Grass (Zostera Marina) Beds, Clarissa Felling May 2015

Organic Content And Silt To Sand Ratio In Correlation With Porewater Sulfide Concentrations Found In Eel Grass (Zostera Marina) Beds, Clarissa Felling

Scholars Week

Eel grass, Zostera marina, beds are a vital habitat for both economically valuable species and nutrient cycling. Populations of Z. marina in Washington State have either stayed consistent or dwindled slightly. To increase the distribution of eel grass in Washington State knowing the organic content and silt to sand ratio is important for these plants survival. If this data correlates to sulfide concentrations, which can inhibit the abundance of eelgrass, department officials can locate viable places for new beds. Sediment samples were taken from four different eelgrass sites around Skagit County. Each sample was divided in two; one heated at …