Life Sciences Commons^™

Genome-Wide Analysis Of Methylome In The Mouse Brain Using Long-Read Sequencing Technology, Zachary Even, He Huang, Ramkumar Mathur, Xusheng Wang

Arts & Sciences Undergraduate Showcase

DNA methylation is an epigenetic modification that transfers a methyl group onto the C-5 position of the cytosine to form 5-methylcytosine. DNA methylation regulates gene expression by recruiting proteins involved in gene repression or by inhibiting the binding of transcription factor(s) to DNA, especially in regulation of Allele Specific Expression (ASE). In this study, we used Oxford Nanopore long-read sequencing technology to profile methylome in the two inbred mouse strains, C57BL/6J (B6) and DBA/2J (D2). Compared with bisulfite conversion followed by Illumina Sequencing, long-read sequencing technology allows us to achieve much longer read length of 4,653.675 base pairs on average …

Environmental Impacts Of Contact Lens Waste, Abigail Wilhelmi

Arts & Sciences Undergraduate Showcase

Contact lenses have been used for decades to correct vision, and over 150 million people use contact lenses today. The materials used to make contact lenses have evolved drastically, but ultimately resulted in a specific plastic, silicone-derived hydrogel, which provides maximal comfort and clear vision, while also maintaining the eye health of the user. Contact lenses have enhanced the lives of many people, but a topic that is often left out of contact lens discussions is that of plastic waste. Single-use plastic and increased plastic pollution have recently been areas of concern and expanded research. Contact lenses are often forgotten …

Synthetic Hagfish Slime Mimetics: Mechanical Characterization, Hayden Johns, Spencer Walker

Fall Student Research Symposium 2021

Hagfish are ancient animals that eject a slime when attacked by predators. The slime that the hagfish emit is almost entirely composed of water but protein strands within the slime cause the slime to have incredible strength. However, these protein strands will be formed synthetically for the purposes of our experiment. To defend against foes, the Navy launches plastic ropes into the propellers of enemy warships in order to decrease the thrust of the motors. In a push to find a more biodegradable solution, the utilization of hagfish slime has shown great promise in stopping propellers.While we know that the …

Effect Of Basal Diet And Black Raspberry Supplementation On Gene Biomarkers Of "Leaky Gut" In Mouse Model Of Colitis-Associated Colorectal Cancer, Eliza Stewart

Fall Student Research Symposium 2021

Colorectal cancer is currently the third leading cause of cancer death in the world. The risk of developing colorectal cancer increases significantly in individuals who suffer from colitis, which is inflammation of the colon lining, seen in Irritable Bowel Disease. The term “leaky gut” is often used to describe increased intestinal permeability and is closely related to colitis. Leaky gut is associated with dysbiosis of the gut microbiota, which can occur through diet. This dysbiosis leads to pro-longed inflammation and affects genes that encode for proteins involved in the tight junctions between cells. Compromised intestinal integrity allows for translocation of …

Biol 1411- Botany Laboratory Manual, Yolander R. Youngblood

Open Education Resources

Botany Laboratory Manual By – Yolander R.Youngblood, PhD.

This manual was reviewed by student editors, Ayanna Montegut and Ineceia Carter.

Table of Contents

1. The Plant Cell Lab

2. Mitosis Lab

3. Plant Growth and Development Lab

4. Simple Tissue Lab

5. Leaf Lab

6. Stem Lab

7. Root Lab

8. Evolution of Land Plants Lab

9. Bryophyte Lab

10. Fern Lab

11. Gymnosperm Lab

12. Angiosperm Lab

13. Appendix

a. Writing in the Scientific Notebook

b. How to use the Microscope

c. Plants and Their Structure

d. Additional Video, Lecture, and Lab Resources

College Of Natural Sciences Newsletter, December 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 12

Page 1 Dean's Message
Page 2 Awards & Recognition
Page 2 Media Coverage of CNS
Page 3 Media Coverage Cont.
Page 4 Science as Art Competition
Page 5 Open PRAIRIE Data
Page 5 Grants Awarded in CNS

College Of Natural Sciences Scholarship Brunch Program, November 6th 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

This is the program for the first annual College of Natural Sciences Scholarship Brunch, held on November 6th, 2021 at McCrory Gardens.

College Of Natural Sciences Newsletter, November 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 11

Page 1 Dean's Message
Page 2 Awards & Recognition
Page 3 Media Coverage of CNS
Page 4 2021 Day of Scholars
Page 5 Astronomy Outreach
Page 6 SDSU Faculty & Students Host American Society for Microbiology Annual Conference
Page 7 Scholarship Brunch
Page 8 Open PRAIRIE Data, SI Final Exam Review Sessions
Page 9 Aamlid Family Anatomy Lab Photos

College Of Natural Sciences Newsletter, October 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 10

Page 1 Dean's Message
Page 2 Awards and Recognition; Introducing Natural Sciences Student Ambassadors
Page 3 Media Coverage of CNS
Page 4 Spooky Science Outreach
Page 5 The BIG Event Outreach
Page 6 Geography Club Road Trip
Page 7 Aamlid Family Anatomy Lab
Page 8 Hobo Day Recap
Page 10 Open PRAIRIE Data; Grants Awarded in CNS

Squid And Cuttlefish Resources Of Western Australia, Daniel E. Yeoh Phd, Danielle J. Johnston Phd, David C. Harris

Fisheries research reports

This report provides a description and assessment of the squid and cuttlefish resources of Western Australia, and all of the fishing activities (i.e. fisheries / fishing sectors) affecting these resources. Encompassed are multiple species in the orders Oegopsida and Myopsida (squid or ‘calamari’) and Sepiida (cuttlefish), including; southern calamari (Sepioteuthis australis), northern calamari (Sepioteuthis lessoniana), Gould’s squid (Nototodarus gouldi), loligo squids Uroteuthis (Photololigo) spp.,giant cuttlefish (Sepia apama), broadclub cuttlefish (Sepia latimanus) and pharaoh cuttlefish (Sepia pharaonis).

2021 Assessment Of The Status Of The West Coast Demersal Scalefifish Resource, David Fairclough, E. A. Fisher, Sybrand Alex Hesp, Ainslie Denham, Rachel Marks

Fisheries research reports

No abstract provided.

Fisheries Science Update – October 2021: West Coast Demersal Scalefish Resource, Department Of Primary Industries And Regional Development, Western Australia

Fisheries occasional publications

Key points: 2021 stock assessment outcomes • The West Coast Demersal Scalefish Resource (WCDSR) is halfway into a 20-year recovery plan following a period of overfishing in the 1990s and 2000s. • This latest assessment provides an important “health check” on the recovery status. • The recovery plan is based on maintaining recreational (including charter) and commercial sector’s total fishing mortality below catch limits and protecting key spawning aggregations to recover the WCDSR by 2030. • The Department of Primary Industries and Regional Development (DPIRD) tracks recovery progress by undertaking weight of evidence stock assessments of WCDSR indicator species dhufish …

2021 Assessment Of The Status Of The West Coast Demersal Scalefish Resource, David V. Fairclough, Sybrand Alex Hesp, Ainslie Denham, Emily A. Fisher, Rachel Marks, Karina L. Ryan, Elaine Lek, Rhys Allen, Brett M. Crisafulli

Fisheries research reports

A recovery program for the West Coast Demersal Scalefish Resource was introduced between late 2007 and early 2010, based on the maintenance of retained catches of demersal species (overall suite and each indicator species) by both the commercial and recreational sectors below 50% of the catches reported in 2005/06 (original catch recovery benchmarks).

Catch reductions were aimed at reducing exploitation levels (F, long-term fishing mortality of the key indicator species’ stocks) to below the threshold reference point (F = M, the natural mortality rate), which would then allow stocks to recover to above the …

Ecological Risk Assessment For The Temperate Demersal Elasmobranch Resource, Department Of Primary Industries And Regional Development, Western Australia

Fisheries research reports

No abstract provided.

Squid And Cuttlefish Resources Of Western Australia, Daniel Yeoh, Danielle J. Johnston Phd, David C. Harris

Fisheries research reports

No abstract provided.

College Of Natural Sciences Newsletter, September 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 9.

Page 1 Dean's Message
Page 2 Awards and Recognition
Page 3 Student Clubs in Natural Science
Page 4 Media Coverage of CNS
Page 5 Hobo Day Festivities
Page 6 Open PRAIRIE Data; Grants Awarded in CNS
Page 7 One Day for State Recap

Otoliths Of South-Western Australian Fish: A Photographic Catalogue, Chris Dowling, Kim Smith, Elain Lek, Joshua Brown

Fisheries research reports

No abstract provided.

Otoliths Of South-Western Australian Fish: A Photographic Catalogue, Chris Dowling, Kim Smith, Elaine Lek, Joshua Brown

Fisheries research reports

Due to the species-specific nature of otoliths and given they are often the only part of the fish preserved when fish die, otolith catalogues can be used in numerous applications, such as diet studies in fish eating animals, including pinnipeds, fish and sea birds; archaeological purposes such as reconstructing indigenous people’s diets from otoliths found in middens or evolutionary history of fish species by comparing fossilized otoliths. Given the unique mixture of subtropical and temperate fish, including many endemic species that occur off the southwest corner of WA having a catalogue for this area is extremely important for people working …

College Of Natural Sciences Newsletter, August 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 8.

Page 1 Dean's Message
Page 2 Awards and Recognition
Page 3 Student Summer Research
Page 4 Media Coverage of CNS
Page 5 Wintrode Student Success Center
Page 6-7 Welcome to our new Faculty & Staff!
Page 8 One Day for State: Thursday, Sept. 2nd
Page 7 Open PRAIRIE Data; Fall Faculty Retreat 2021

College Of Natural Sciences Newsletter, July 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 7.

Page 1 Dean's Message
Page 2 Celebrating Three Years
Page 3 Summer School Travel
Page 4 Media Coverage of CNS
Page 5 Chemistry Teachers Visit
Page 5 Remembering Dr. Warren Hein
Page 6 Research Spotlights: Undergraduate Summer Experiences
Page 7 Open PRAIRIE Data; Grants Awarded in CNS

College Of Natural Sciences Newsletter, June 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 6.

Page 1 Dean's Message
Page 2-6 Remembering the Life of Dr. Pengra and Celebrating His legacy for Entire Generations to Come.

Marine Protected Species Identification Guide, Department Of Fisheries

Fisheries occasional publications

No abstract provided.

College Of Natural Sciences Newsletter, May 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 5.

Page 1 Dean's Message
Page 2 - 3 Awards & Recognition
Page 4 Research Spotlight: Dr. Xiaoyang Zhang
Page 5 Upcoming Retirements
Page 6 - 7 Geography Alumni Social, Recent Media Coverage
Page 8 Open PRAIRIE Data
Page 9 - 11 Spring 2021 Dean's List and Academic Recognitions

Altered Gametogenesis Gene Expression Of The Eastern Oyster (Crassostrea Virginica) In Response To Plastic Exposure, Marissa Kordal

Transformations: Presentation Slides

Marine plastic pollution leaches chemicals that cause detrimental effects such as reduced fecundity and feminization of males in marine species. The eastern oyster, Crassostrea virginica, is a valuable species to study the effects of plastic on sex differentiation because it is a protandric hermaphrodite that undergoes gametogenesis yearly. My objective was to investigate a potential cause of an observed female-skew in the sex ratio of first year oysters exposed to plastic by measuring differential gene expression of eight gametogenesis genes from oysters grown on plastic compared to those on shell. Plastic exposure increased the expression of genes involved in egg …

Sciadopitys Verticillata (Japanese Umbrella Pine), #1065-1067, Grace C. Kubat

BIO 140 Arboretum Project

Over the course of the 2021 spring semester, I observed a grove of Japanese Umbrella Pines. These trees are a part of the University's arboretum. In addition to making weekly observations, I researched the cultural significance of the Umbrella Pines. My research will hopefully contribute to future projects regarding the trees and help to enrich the University's arboretum project.

Fagus Sylvatica (European Beech), #1009, Megan L. Trafford

BIO 140 Arboretum Project

No abstract provided.

Tilia Cordata (Littleleaf Linden) #1059, Heather Noel Mckee

BIO 140 Arboretum Project

In this paper I studied the Tilia cordata, more commonly known as the Littleleaf Linden, over the course of three months. I included the history and uses of the Linden tree along with its symbolic value in European culture. This tree symbolizes friendship and peace which coincides with the critical concerns of the Sisters of Mercy.

Creepy Crawly Compensation: Examining The Costs Of Ectoparasite-Induced Compensatory Growth In Late-Stage Nestlings, Elliot Lusk

Biology

When normal growth rates are suppressed, organisms may undergo a rapid period of increased growth in order to match the physical requirements of a developmental benchmark. This compensatory growth, however, is not without its costs, which can have varying consequences. In nestlings, a major benchmark is that of fledging, which requires advanced physical maturation. In previous studies, compensatory growth and some of its associated costs have been shown in prefledging nestlings but fledging-aged nestlings and the costs they may have sustained needs further study. Here we examine the costs of compensatory growth in late-stage European starling (Sturnus vulgaris) nestlings under …

Exotic Legume's Leaf Litter Beneficial To Prairie Plants, Asher Gardner

Biology

Lespedeza cuneata is an invasive, non-native species of bush clover that is invading prairies where the native Lespedeza capitata grows. Both species of bush clover are legumes, which are nitrogen fixers. Legumes and their senescent leaves (i.e., “litter”) are well known for increasing levels of available nitrogen in the soil. However, the exotic L. cuneata also produces tannins that reduce the rate of germination in some prairie plants. The purpose of this study was to clarify whether these compounds in the litter of the invasive species of bush clover deter early growth in its native competitors, and to determine whether …

Effect Of Cyclooxygenase-2 Glycosylation On Downstream Expression Of E-Cadherin And Β-Catenin In Mcf-7 Breast Cancer Cells, Genna Roan, Grace Alexander, Klarisse Cruz, Janelle Nguyen, Mary B. Sevigny

Natural Sciences and Mathematics | Faculty Research Posters

Cyclooxygenase-2 (COX-2) is an enzyme that helps catalyze the formation of prostaglandins, which promote inflammation, pain, and fever and maintain other normal physiological functions throughout the body. However, the overexpression of COX-2 has been found to play a role in various diseases including breast cancer. COX-2 exists as two major glycoforms— 72 kDa and 74 kDa— due to the glycosylation site Asn580 which is glycosylated 50% of the time. Past studies from our lab have shown that this glycosylation regulates COX-2 protein turnover in the cell3. The proteins E-cadherin— a tumor suppressor— and β-catenin— a tumor driver— can be regulated …