Showing 1 - 21 of 21 Items

Miniature of Three Decades of Replicated Field Studies Reveal Eelgrass (<i>Zostera marina</i>) Inhibits Soft-shell Clam (<i>Mya arenaria</i>) Growth in Eastern Maine
Three Decades of Replicated Field Studies Reveal Eelgrass (Zostera marina) Inhibits Soft-shell Clam (Mya arenaria) Growth in Eastern Maine
This record is embargoed.
    • Embargo End Date: 2027-05-16

    Date: 2024-01-01

    Creator: Everett Horch

    Access: Embargoed



      Miniature of Functionality of <i>Candida albicans</i> She3 in the mRNA transport of <i>Saccharomyces cerevisiae</i>
      Functionality of Candida albicans She3 in the mRNA transport of Saccharomyces cerevisiae
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          Date: 2021-01-01

          Creator: Sheikh Omar Kunjo

          Access: Access restricted to the Bowdoin Community



            Miniature of Tracking photosynthetic seasonality at needle and forest scales  in pines experiencing mild winters
            Tracking photosynthetic seasonality at needle and forest scales in pines experiencing mild winters
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            • Restriction End Date: 2025-06-01

              Date: 2022-01-01

              Creator: Sara Elizabeth Nelson

              Access: Access restricted to the Bowdoin Community



                Miniature of Identification of MPKs Involved in the Wall Associated Kinase Regulated Stress Response in Arabidopsis thaliana
                Identification of MPKs Involved in the Wall Associated Kinase Regulated Stress Response in Arabidopsis thaliana
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                    Date: 2013-05-01

                    Creator: Patrick J Lariviere

                    Access: Access restricted to the Bowdoin Community



                      Miniature of A multifaceted analysis of Semaphorin-induced neuroplasticity in the nervous system of <i>Gryllus bimaculatus</i>
                      A multifaceted analysis of Semaphorin-induced neuroplasticity in the nervous system of Gryllus bimaculatus
                      Access to this record is restricted to members of the Bowdoin community. Log in here to view.
                      • Restriction End Date: 2028-06-01

                        Date: 2023-01-01

                        Creator: Ean Lev Small

                        Access: Access restricted to the Bowdoin Community



                          A molecular analysis of green crab diets in Casco Bay, Maine

                          Date: 2015-03-01

                          Creator: Aidan W. Short, David B. Carlon

                          Access: Open access

                          A new wave of green crabs Carcinus maenus is sweeping through the Gulf of Maine (GOM). While first reports of green crabs in the GOM date from the early 1900s, populations in southern GOM have exploded in the last five years. In the Casco Bay region, this unusually high abundance is associated with poor commercial shellfish landings and the decline of eel grass habitat (Zostera marina). To determine the mechanistic roles green crabs play in direct and indirect ecological interactions, it is important to understand diet breadth, and how feeding preferences change in response to ecological context. Since green crabs are omnivorous, traditional approaches to diet analysis via hard parts suffer from substantial bias. We are using DNA barcoding and next generation sequencing (NGS) to analyze green crab diets from a longitudinal sampling design in Casco Bay. In addition to a temporal dimension, our design includes two habitats: clam flats and eel grass beds. We have now sampled ~ 1000 crabs and have processed 460 individual stomachs from a range of sizes and both sexes. Here we will present: our sampling design, our NGS pipeline, and preliminary analysis from a lobster-specific (Homarus americanus) probe. Presenting author status: Undergraduate Preferred presentation type: Poster Preferred topics: 3. Biological invasions; 18. Molecular ecology Benthic Ecology Meeting, 2015 Quebec City, Canada Aidan Short was an undergraduate student at Bowdoin College when this research was conducted.


                          Modulation of the crustacean cardiac neuromuscular system by the SLY neuropeptide family

                          Date: 2024-01-01

                          Creator: Grant Griesman

                          Access: Open access

                          Central pattern generators (CPGs) are neuronal networks that produce rhythmic motor output in the absence of sensory stimuli. Invertebrate CPGs are valuable models of neural circuit dynamics and neuromodulation because they continue to generate fictive activity in vitro. For example, the cardiac ganglion (CG) of the Jonah crab (Cancer borealis) and American lobster (Homarus americanus) contains nine electrochemically coupled neurons that fire bursts of action potentials to trigger a heartbeat. The CG is modulated by neuropeptides, amines, small molecule transmitters, gases, and mechanosensory feedback pathways that enable flexibility and constrain output. One such modulator, the SLY neuropeptide family, was previously shown to be expressed in hormonal release sites and within the CG itself and has unusual processing features. However, its physiological effect was unknown. Here, I performed dose-response experiments in the crab and lobster whole heart and isolated CG to determine the threshold concentration of SLY neuropeptides to which these systems respond. The crab isoform had strong, excitatory effects in the crab whole heart and weakly modulated the crab CG. The lobster isoform weakly modulated the lobster whole heart and CG. Surprisingly, the crab isoform exerted large, variable effects on the lobster system, which suggests that SLY neuropeptides, their receptors, and their signaling pathways may be evolutionarily conserved across these two species. This research contributes to our understanding of how neural circuits can generate flexible output in response to modulation. It may also offer insight into processes influenced by peptidergic neurotransmission in the nervous systems of other animals, including mammals.


                          Miniature of Isolation of Cell Adhesion Mutations in <i>Arabidopsis thaliana</i>
                          Isolation of Cell Adhesion Mutations in Arabidopsis thaliana
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                              Date: 2020-01-01

                              Creator: Frances DeCamp Hobart Zorensky

                              Access: Access restricted to the Bowdoin Community



                                Miniature of The identification and visualization of candidate early embryonic patterning genes in <i>Bradysia coprophila</i>
                                The identification and visualization of candidate early embryonic patterning genes in Bradysia coprophila
                                This record is embargoed.
                                  • Embargo End Date: 2027-05-16

                                  Date: 2024-01-01

                                  Creator: Sarah Conant

                                  Access: Embargoed



                                    Miniature of Cell Adhesion in Arabidopsis thaliana
                                    Cell Adhesion in Arabidopsis thaliana
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                                        Date: 2019-05-01

                                        Creator: Natasha Ann Belsky

                                        Access: Access restricted to the Bowdoin Community



                                          Miniature of The role of the ROG1 protein in pectin perception
                                          The role of the ROG1 protein in pectin perception
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                                              Date: 2014-05-01

                                              Creator: Divya Hoon

                                              Access: Access restricted to the Bowdoin Community



                                                Miniature of Testing conservation of an mRNA transport pathway in yeast
                                                Testing conservation of an mRNA transport pathway in yeast
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                                                    Date: 2021-01-01

                                                    Creator: Kyu Young "Kevin" Chi

                                                    Access: Access restricted to the Bowdoin Community



                                                      The Role of ELMO5 in Arabidopsis thaliana Cell Adhesion

                                                      Date: 2022-01-01

                                                      Creator: Isabel Kristina Ball

                                                      Access: Open access

                                                      Plant cell growth and development relies on proper cellular adhesion. As the extracellular matrix serves as the area of connection between two cells, its synthesis and maintenance are essential for cellular adhesion. The middle lamella region, the layer of the extracellular matrix between two adjacent cell walls, is diffuse with the polysaccharide pectin due to its delivery by Golgi vesicles early during cell division. A Ruthenium Red screen for cellular adhesion mutants identified the family of 5 ELMO proteins that are critical for proper cellular adhesion. To further our understanding of plant cellular adhesion and pathways of pectin synthesis and modification, this work investigates ELMO5. Plants homozygous for a T-DNA insertion in ELMO5 and a new deletion mutant allele generated using CRSPR do not have a cellular adhesion phenotype, suggesting it is either not critical for cellular adhesion or is redundant with another gene. Redundancy within the ELMO family is identified through the analysis of double mutants of elmo5 and each of the other four elmo genes. Both elmo1-/- elmo5-/-and elmo4-/- elmo5-/-mutants have a visibly worse cellular adhesion defect phenotype, suggesting partial redundancy through the ELMO family. The mutants are also rescued by growth on agar, pointing to the importance of turgor pressure and osmotic potential in modulating cellular adhesion. Both ELMO4 and ELMO5 were found to localize to the Golgi using a GFP fusion, consistent with a role for ELMOs as scaffold for pectin biosynthesis.


                                                      Miniature of The Role of Pectin Methyl Esterase in Pectin Activation of WAK Regulated Stress Response in Arabidopsis thaliana
                                                      The Role of Pectin Methyl Esterase in Pectin Activation of WAK Regulated Stress Response in Arabidopsis thaliana
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                                                          Date: 2014-05-01

                                                          Creator: Nicholas J Saba

                                                          Access: Access restricted to the Bowdoin Community



                                                            Miniature of Characterizing variation in enhancer usage within and between natural populations of <i>Drosophila</i> by comparing chromatin conformation in non-coding DNA
                                                            Characterizing variation in enhancer usage within and between natural populations of Drosophila by comparing chromatin conformation in non-coding DNA
                                                            This record is embargoed.
                                                              • Embargo End Date: 2027-05-19

                                                              Date: 2022-01-01

                                                              Creator: Serena Jonas

                                                              Access: Embargoed



                                                                Miniature of Assessing parameters influencing interhomolog proximity of paired homologous chromosomes in <i>Drosophila</i>
                                                                Assessing parameters influencing interhomolog proximity of paired homologous chromosomes in Drosophila
                                                                This record is embargoed.
                                                                  • Embargo End Date: 2026-05-20

                                                                  Date: 2021-01-01

                                                                  Creator: Molly Margaret Moore

                                                                  Access: Embargoed



                                                                    Miniature of Conifer forest photosynthetic seasonality: exploring the effect of winter severity and the efficacy of different remote sensing methodologies
                                                                    Conifer forest photosynthetic seasonality: exploring the effect of winter severity and the efficacy of different remote sensing methodologies
                                                                    This record is embargoed.
                                                                      • Embargo End Date: 2026-05-20

                                                                      Date: 2021-01-01

                                                                      Creator: Anneka Florence Williams

                                                                      Access: Embargoed



                                                                        Miniature of High Resolution Molecular Analysis of the Hedgehog Pathway in Tooth Development
                                                                        High Resolution Molecular Analysis of the Hedgehog Pathway in Tooth Development
                                                                        This record is embargoed.
                                                                          • Embargo End Date: 2026-05-20

                                                                          Date: 2021-01-01

                                                                          Creator: Claire Christine Havig

                                                                          Access: Embargoed



                                                                            Miniature of Enhancer usage variation assessed via chromatin-conformation within and among three species of <i>Drosophila</i>
                                                                            Enhancer usage variation assessed via chromatin-conformation within and among three species of Drosophila
                                                                            This record is embargoed.
                                                                              • Embargo End Date: 2027-05-19

                                                                              Date: 2022-01-01

                                                                              Creator: Maia B. Granoski

                                                                              Access: Embargoed



                                                                                Miniature of Determining the influence of proximal Zeste binding sites and promoters on rates of transvection
                                                                                Determining the influence of proximal Zeste binding sites and promoters on rates of transvection
                                                                                This record is embargoed.
                                                                                  • Embargo End Date: 2026-05-17

                                                                                  Date: 2023-01-01

                                                                                  Creator: Molly Henderson

                                                                                  Access: Embargoed



                                                                                    Miniature of Disease on the Half-Shell: Prevalence and impact of the protistan pathogen MSX on oyster population health throughout the Gulf of Maine
                                                                                    Disease on the Half-Shell: Prevalence and impact of the protistan pathogen MSX on oyster population health throughout the Gulf of Maine
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                                                                                        Date: 2018-05-01

                                                                                        Creator: Madeline Schuldt

                                                                                        Access: Access restricted to the Bowdoin Community