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Microbiology Commons

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2022

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Articles 1 - 30 of 485

Full-Text Articles in Microbiology

Oral Impacts On Daily Performances Among People Living With Human Immunodeficiency Virus On Haart Era Attending Care And Treatment Clinics In Dar Es Salaam, Tanzania, Leonard Evarist, Irene Kida Minja Dec 2022

Oral Impacts On Daily Performances Among People Living With Human Immunodeficiency Virus On Haart Era Attending Care And Treatment Clinics In Dar Es Salaam, Tanzania, Leonard Evarist, Irene Kida Minja

Tanzania Journal of Science

Oral disease/conditions are reported to have negative effects on the quality of life of People Living with Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (PLWHIV/AIDS). This study aimed to assess the prevalence and causes of oral impacts on daily performances (OIDP) and its associated factors among PLWHIV/AIDS. A cross-sectional study was conducted among 218 PLWHIV/AIDS attending two HIV Care and Treatment Centres (CTCs) in Dar es Salaam. The study utilized a structured interview schedule containing questions on socio-demography and a single item of global oral health measure on the perception of current oral health status (OHS). A Swahili version of an …


Antimalarial And Antimicrobial Activities Of Some Heteroleptic Metal(Ii) Complexes Of Sulfadiazine–Vitamin C: Synthesis And Spectroscopic Studies, Ikechukwu P. Ejidike, Mercy O. Bamigboye, Dorcas A. Fadare, Juliana B. Adetunji, Joshua A. Obaleye Dec 2022

Antimalarial And Antimicrobial Activities Of Some Heteroleptic Metal(Ii) Complexes Of Sulfadiazine–Vitamin C: Synthesis And Spectroscopic Studies, Ikechukwu P. Ejidike, Mercy O. Bamigboye, Dorcas A. Fadare, Juliana B. Adetunji, Joshua A. Obaleye

Tanzania Journal of Science

Some new Ni(II), Zn(II), Co(II), Cu(II), and Cd(II) of mixed Sulphadiazine and Vitamin C complexes have been synthesized and characterized by different spectroscopic techniques such as FT-IR, elemental analysis, molar conductivity, and magnetic measurements. Both ligands used for this research work act as bidentate ligands towards the central metal ions coordinating through the nitrogen atoms of >C=N–, NH2 groups of Sulphadiazine and oxygen atoms of OH, CO groups of Vitamin C. Tetrahedral and square-planar geometries have been proposed for the complexes. The complexes are stable under atmospheric conditions. The ligands and their complexes were screened for antimicrobial activities against some …


Chemical Analysis, Antibacterial Activities And Uses Of Leaves And Calyces Of Hibiscus Sabdariffa Grown In Dodoma, Tanzania, Sartaz Begum, Derick R. Mwakimbwala, Gideon Sangiwa, Valence M.K. Ndesendo Dec 2022

Chemical Analysis, Antibacterial Activities And Uses Of Leaves And Calyces Of Hibiscus Sabdariffa Grown In Dodoma, Tanzania, Sartaz Begum, Derick R. Mwakimbwala, Gideon Sangiwa, Valence M.K. Ndesendo

Tanzania Journal of Science

Preliminary phytochemical screening of aqueous and ethanolic extracts of Hibiscus sabdariffa grown in Tanzania revealed the presence of secondary metabolites like steroids, tannins, saponins, glycosides, terpenoids, flavonoids along with L-ascorbic acid (vitamin C) and iron(II). Furthermore, both leaves and calyces showed antibacterial activities (agar well diffusion method) against selected bacterial species (Escherichia coli, Staphylococcus aureus, Salmonella typhi and Shigella sonnei), but calyces possessed potent antibacterial activities compared to leaves. The results also supported the claimed traditional uses of this plant. When interrogated during the cross-sectional study in Dodoma region, 54% of the respondents claimed the plant is used to treat …


Prevalence And Evaluation Of Multidrug Resistance Pattern Of Pseudomonas Aeruginosa Among Critical And Non-Critical Areas At A Tertiary Care Hospital Of Multan, Romah Ishfaq, Hubza Ruatt Khan, Mehvish Javeed, Muhammad Ikrama Tanveer, Asma Ashraf Dec 2022

Prevalence And Evaluation Of Multidrug Resistance Pattern Of Pseudomonas Aeruginosa Among Critical And Non-Critical Areas At A Tertiary Care Hospital Of Multan, Romah Ishfaq, Hubza Ruatt Khan, Mehvish Javeed, Muhammad Ikrama Tanveer, Asma Ashraf

Journal of Bioresource Management

Pseudomonas aeruginosa is an extremely wide spread microorganism linked to nosocomial illnesses. Effective inspection of variations in antimicrobial resistance patterns of P. aeruginosa is vital for selecting suitable antimicrobial drugs for pragmatic treatment. The current research has been performed for assessing antimicrobial sensitivity profile of P. aeruginosa isolated as of a variety of medical specimens collected from critical and non-critical admitted patients of Nishtar Hospital, Multan. The isolates were detected utilizing standard lab practices, as well as the sensitivity was examined employing Kirby-Bauer disk diffusion method corresponding to Clinical and Laboratory Standard Institute (CLSI) recommendations 2019. Out of 373 samples, …


Host-Pathogen Interactions In A Changing World: Microbes, Mucosal Defenses, And Multiple Hosts, Brandon C. Labumbard Dec 2022

Host-Pathogen Interactions In A Changing World: Microbes, Mucosal Defenses, And Multiple Hosts, Brandon C. Labumbard

Graduate Doctoral Dissertations

As fungal diseases continue to emerge, research increasingly focuses on host-microbiome interactions and links to disease. Certain skin-associated microbes may benefit hosts by protecting them from invading pathogens. Seasonal changes in the host environment can also result in shifts in the microbial community and pathogen virulence – potentially influencing disease dynamics. I investigated how cutaneous microbial communities differ across hosts, seasons, and Batrachochytrium dendrobatidis (Bd) infection status by sequencing the microbial communities of 1,100 leopard frogs at five locations across the US. Percent anti-Bd function varied seasonally and with Bd infection status. Bacterial communities also varied across locations and time. …


Isolation And Characterization Of Cellulose Degrading Microorganisms Generating Electricity Using Microbial Fuel Cell, Lama Fayad, Rania Amer, Ahmad Abd El Nabi, Ali Hammoud, Hoda Yusef Dec 2022

Isolation And Characterization Of Cellulose Degrading Microorganisms Generating Electricity Using Microbial Fuel Cell, Lama Fayad, Rania Amer, Ahmad Abd El Nabi, Ali Hammoud, Hoda Yusef

BAU Journal - Science and Technology

Global warming and the accumulation of organic waste constitute a serious environmental problem. Therefore, microbial fuel cells (MFC) are an eco-friendly device that have significant capability for the production of electricity using biodegradable waste as fuel. Microorganisms used as catalysts in the anode compartment, execute a principal function in operating MFCs. The present study was conducted to isolate and to screen potential bioelectricity generating microorganisms from dumpsite soil samples and also to construct a domestic dual-chambered microbial fuel cell (MFC). Streptomyces fimicarius was found to be the best isolate for the degradation of cellulose and the production of bioelectricity. The …


Prevalence And Plasmid Profiles Of Enterobacteriaceae Isolates Obtained From Individuals With Asymptomatic Bacteriuria In Okada, Edo State, Nigeria, Osarumwense Precious Otote, Maureen Uchechukwu Okwu, Osazee Ekundayo Izevbuwa, Happy Ovuerhi Oferiofe Dec 2022

Prevalence And Plasmid Profiles Of Enterobacteriaceae Isolates Obtained From Individuals With Asymptomatic Bacteriuria In Okada, Edo State, Nigeria, Osarumwense Precious Otote, Maureen Uchechukwu Okwu, Osazee Ekundayo Izevbuwa, Happy Ovuerhi Oferiofe

Makara Journal of Science

Asymptomatic bacteriuria (ASB) is the presence of bacteria in apparently healthy individuals. Although, the prevalence varies widely with age, gender, and the presence or absence of genitourinary abnormalities, the detection of pathogenic bacteria in urine constitutes firm evidence of infection. The objectives of this study were to isolate members of the family Enterobacteriaceae from urine samples of research participants, and to determine the antibacterial susceptibility and plasmid profiles of the isolates. A total of 122 mid-stream urine samples consisting of 72 male and 50 female participants from selected primary and secondary schools were collected. The age of the participants used …


Rapid Bacterial And Fungal Successional Dynamics In First Year After Chaparral Wildfire, M. Fabiola Pulido-Chavez, James W. J. Randolph, Cassandra A. Zalman, Loralee Larios, Peter M. Homyak, Sydney I. Glassman Dec 2022

Rapid Bacterial And Fungal Successional Dynamics In First Year After Chaparral Wildfire, M. Fabiola Pulido-Chavez, James W. J. Randolph, Cassandra A. Zalman, Loralee Larios, Peter M. Homyak, Sydney I. Glassman

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The rise in wildfire frequency and severity across the globe has increased interest in secondary succession. However, despite the role of soil microbial communities in controlling biogeochemical cycling and their role in the regeneration of post-fire vegetation, the lack of measurements immediately post-fire and at high temporal resolution has limited understanding of microbial secondary succession. To fill this knowledge gap, we sampled soils at 17, 25, 34, 67, 95, 131, 187, 286, and 376 days after a southern California wildfire in fire-adapted chaparral shrublands. We assessed bacterial and fungal biomass with qPCR of 16S and 18S and richness and composition …


A Monovalent Mt10-Cvb3 Vaccine Prevents Cvb4-Accelerated Type 1 Diabetes In Nod Mice, Mahima T. Rasquinha, Ninaad Lasrado, Meghna Sur, Kiruthiga Mone, Haowen Qiu, Jean-Jack Riethoven, Raymond A. Sobel, Jay Reddy Dec 2022

A Monovalent Mt10-Cvb3 Vaccine Prevents Cvb4-Accelerated Type 1 Diabetes In Nod Mice, Mahima T. Rasquinha, Ninaad Lasrado, Meghna Sur, Kiruthiga Mone, Haowen Qiu, Jean-Jack Riethoven, Raymond A. Sobel, Jay Reddy

Nebraska Center for Virology: Faculty Publications

Enteroviruses, which include Coxsackieviruses, are a common cause of virus infections in humans, and multiple serotypes of the group B Coxsackievirus (CVB) can induce similar diseases. No vaccines are currently available to prevent CVB infections because developing serotype-specific vaccines is not practical. Thus, developing a vaccine that induces protective immune responses for multiple serotypes is desired. In that direction, we created a live-attenuated CVB3 vaccine virus, designated mutant (Mt)10, that offers protection against myocarditis and pancreatitis induced by CVB3 and CVB4 in disease-susceptible A/J mice. Here, we report that the Mt10 vaccine protected against CVB4-triggered type 1 diabetes (T1D) in …


Do The Culturable Microbial Groups Present In Cutaway Bogs Change According To Temporal Variation? Pilot Study Based On The Midlands In The Republic Of Ireland, Gouri Atapattu, Tara Battersby, Michelle Giltrap, Furong Tian Nanolab Research Centre, Focas Research Institute, Technological University Dublin Dec 2022

Do The Culturable Microbial Groups Present In Cutaway Bogs Change According To Temporal Variation? Pilot Study Based On The Midlands In The Republic Of Ireland, Gouri Atapattu, Tara Battersby, Michelle Giltrap, Furong Tian Nanolab Research Centre, Focas Research Institute, Technological University Dublin

Articles

Cutaway peatlands in the midlands of the Republic of Ireland are rarely the focus of scientific studies. The soil quality and related microenvironment have been severely impacted by peat extraction. Returning them to a ‘near-natural state’ would require greater insights into this ecological niche. The current research took the initiative to study the microbiology of vast cutaway sites in the midlands of Ireland. Peat was collected over two seasons in January, February and April. Homogenised peat was aseptically cultured on a range of specific and non-specific culture media. Microbial enumeration, Gram staining and other microscopic observations of morphologically distinct microorganisms …


The Role Of Dha In The Impact Of Trem2 On Microglia Activation And Alzheimer’S Disease, Michael A. Palmieri Iii Dec 2022

The Role Of Dha In The Impact Of Trem2 On Microglia Activation And Alzheimer’S Disease, Michael A. Palmieri Iii

Seton Hall University Dissertations and Theses (ETDs)

Alzheimer’s disease (AD) is a neurological disease that is associated with microglia activation. An important receptor involved in microglia activation is Triggering receptor expressed on myeloid cells 2 (TREM2). Recent studies suggest that docosahexaenoic acid (DHA) could reduce the neuroinflammation that is associated with microglia activation. We hypothesized that when DHA concentration was increased, TREM2 expression would decrease, microglia activity would be inhibited, and a resulting decrease in neuroinflammation would be observed. We examined peer-reviewed journal articles from 2017-2022 that investigated the relationship between TREM2 activation and severity of AD symptoms, the protective properties of DHA against AD, and the …


Surveillance Of Antimicrobial Resistance In Veterinary Medicine In The United States: Current E, Juliana M. Ruzante, Beth Harris, Paul Plummer, Raissa R. Raineri, John Dustin Loy, Megan Jacob, Orhan Sahin, Amanda J. Kreuder Dec 2022

Surveillance Of Antimicrobial Resistance In Veterinary Medicine In The United States: Current E, Juliana M. Ruzante, Beth Harris, Paul Plummer, Raissa R. Raineri, John Dustin Loy, Megan Jacob, Orhan Sahin, Amanda J. Kreuder

Nebraska Center for Virology: Faculty Publications

Antimicrobial resistance (AMR) is a global problem facing human, animal, plant, and environmental health by threatening our ability to effectively treat bacterial infections with antimicrobials. In the United States, robust surveillance efforts exist to collect, analyze, and disseminate AMR data in human health care settings. These tools enable the development of effective infection control methods, the detection of trends, and provide the evidence needed to guide stewardship efforts to reduce the potential for emergence and further spread of AMR. However, in veterinary medicine, there are currently no known equivalent tools. This paper reviews efforts to reduce the potential for emergence …


Genetic Characterization Of Resitance To Frogeye Leaf Spot Of Soybean, Gabriel D. Munoz Herrera Dec 2022

Genetic Characterization Of Resitance To Frogeye Leaf Spot Of Soybean, Gabriel D. Munoz Herrera

LSU Master's Theses

Cercospora sojina is the causal agent of the fungal disease frogeye leaf spot (FLS) in soybeans. Management of this disease consists of foliar application of fungicides and the use of resistant cultivars. However, fungicide resistance has been detected in C. sojina populations and characterization of host resistance genes is relatively limited. To overcome the latter obstacle, we aimed to identify novel resistance genes using quantitative image analysis of the SoyNAM population. Two image analysis workflows using ImageJ and PlantCV were optimized and implemented to increase reproducibility and reduce subjectivity. The quantitative measurements included disease severity, lesion count, and average lesion …


Evaluation Of Antibacterial Potential Of Artemisinin Extracts Of Artemisia Annua In Vivo And In Vitro, Arsalan Khan, Akhtar Ali, Imtiaz Ali Shah, Umm-E- Aimen, Waseem Ullah, Imtiaz Khan Dec 2022

Evaluation Of Antibacterial Potential Of Artemisinin Extracts Of Artemisia Annua In Vivo And In Vitro, Arsalan Khan, Akhtar Ali, Imtiaz Ali Shah, Umm-E- Aimen, Waseem Ullah, Imtiaz Khan

Journal of Bioresource Management

To ensure universal health care, the World Health Organization recognized the significance of complementary and alternative medicines (CAM) and recommended the use of natural herbs and plants bearing therapeutic potential and fewer adverse effects. Therefore, Artemisia annua herb was evaluated for its antibacterial potential and therapeutic efficacy against Staphylococcus aureus, Streptococcus and Escherichia coli both in vitro and in vivo. Artemisinin was extracted from Artemisia annua by chemical treatment. Subsequently, the culture sensitivity tests were performed on MHA by disk diffusion method to determine the antibacterial potential of the Artemisinin extracts against the test bacteria (in vitro phase). …


Research Article A New Informatics Framework For Evaluating The Codon Usage Metrics, Evolutionary Models And Phylogeographic Reconstruction Of Tomato Yellow Leaf Curl Virus (Tylcv) In Different Regions Of Asian Countries, Mamathashree Mn, Kuralyanapalya Putta Honnappa Suresh, Sharanagouda S Patil, Uma Bharathi Indrabalan, Mallikarjun S Beelagi, Sushma Pradeep, Krishnamoorthy Paramanandham, Siju Susan Jacob, Chandrashekar Srinivasa, Shiva Prasad Kollur, Raghu Ram Achar, Ashwini Prasad, Shashanka K Prasad, Chandan Shivamallu Dec 2022

Research Article A New Informatics Framework For Evaluating The Codon Usage Metrics, Evolutionary Models And Phylogeographic Reconstruction Of Tomato Yellow Leaf Curl Virus (Tylcv) In Different Regions Of Asian Countries, Mamathashree Mn, Kuralyanapalya Putta Honnappa Suresh, Sharanagouda S Patil, Uma Bharathi Indrabalan, Mallikarjun S Beelagi, Sushma Pradeep, Krishnamoorthy Paramanandham, Siju Susan Jacob, Chandrashekar Srinivasa, Shiva Prasad Kollur, Raghu Ram Achar, Ashwini Prasad, Shashanka K Prasad, Chandan Shivamallu

International Journal of Health and Allied Sciences

Tomato yellow leaf curl virus (TYLCV) is a major devastating viral disease, majorly affecting the tomato production globally. The disease is majorly transmitted by the Whitefly. The Begomovirus (TYLCV) having a six major protein coding genes, among them the C1/AC1 is evidently associated with viral replication. Owing to immense role of C1/AC1 gene, the present study is an initial effort to elucidate the factors shaping the codon usage bias and evolutionary pattern of TYLCV-C1/AC1 gene in five major Asian countries. Based on publically available nucleotide sequence data the Codon usage pattern, Evolutionary and Phylogeographic reconstruction was carried out. The study …


Artificial Intelligence And Machine Learning Based Techniques In Analyzing The Covid-19 Gene Expression Data: A Review, Santhosh K, Ajitha S, Sushma Pradeep, Kuralyanapalya Putta Honnappa Suresh, Sharanagouda S Patil, Shiva Prasad Kollur, Chandan Shivmallu Dec 2022

Artificial Intelligence And Machine Learning Based Techniques In Analyzing The Covid-19 Gene Expression Data: A Review, Santhosh K, Ajitha S, Sushma Pradeep, Kuralyanapalya Putta Honnappa Suresh, Sharanagouda S Patil, Shiva Prasad Kollur, Chandan Shivmallu

International Journal of Health and Allied Sciences

The novel Coronavirus associated with respiratory illness has become a new threat to human health as it is spreading very rapidly among the human population. Scientists and healthcare specialists throughout the world are still looking for a breakthrough technology to help combat the Covid-19 outbreak, despite the recent worldwide urgency. The use of Machine Learning (ML) and Artificial Intelligence (AI) in earlier epidemics has encouraged researchers by providing a fresh approach to combating the latest Coronavirus pandemic. This paper aims to comprehensively review the role of AI and ML for analysis of gene expressed data of COVID-19


Crispr Technology As An Antiviral In Dsdna And Ssrna Viruses, Cathryn Mayes Dec 2022

Crispr Technology As An Antiviral In Dsdna And Ssrna Viruses, Cathryn Mayes

Theses & Dissertations

The COVID-19 pandemic highlights the necessity of emergency response and pandemic preparedness, especially for emerging viral threats. Currently, virus-specific vaccines and antivirals are the primary tools to combat viral diseases; however, broad-spectrum antivirals that target more than one virus species could provide additional protection from emerging and re-emerging viral diseases (Andersen et al. 2020; Zhu et al. 2015; Hickman et al. 2022).

Clustered regulatory interspaced short palindromic repeat (CRISPR)-associated endonucleases have become recently utilized as potential antiviral strategies due to their high specificity, efficacy, and versatility (Najafi et al. 2022). While CRISPR-based antivirals have previously been used to target specific …


Super-Enhanced Marco Variant Drives Triple-Negative Breast Cancer Progression, Weei-Chin Lin, Fang-Tsyr Lin Dec 2022

Super-Enhanced Marco Variant Drives Triple-Negative Breast Cancer Progression, Weei-Chin Lin, Fang-Tsyr Lin

Faculty, Staff and Students Publications

No abstract provided.


Respons Pertumbuhan Biomassa Bagian Atas Bibit Kelapa Sawit Akibat Pemberian Kompos Pelepah Kelapa Sawit, Pupuk Hayati, Dan Asam Humat, Mira Ariyanti, Esnakelga Bernadetha Keliat, Cucu Suherman, Santi Rosniawaty, Mochamad Arief Soleh Dec 2022

Respons Pertumbuhan Biomassa Bagian Atas Bibit Kelapa Sawit Akibat Pemberian Kompos Pelepah Kelapa Sawit, Pupuk Hayati, Dan Asam Humat, Mira Ariyanti, Esnakelga Bernadetha Keliat, Cucu Suherman, Santi Rosniawaty, Mochamad Arief Soleh

Jurnal Kultivasi

Pemberian pupuk anorganik dapat meningkatkan pertumbuhan tanaman, tetapi penggunaan secara terus menerus menyebabkan dampak kurang baik bagi tanaman dan lingkungan pertanaman. Penelitian ini berkaitan dengan pentingnya penggunaan pupuk organik dalam mengurangi penggunaan pupuk anorganik sebagai salah satu langkah untuk mewujudkan perkebunan kelapa sawit (Elaeis guineensis Jacq.) yang berkelanjutan. Tujuan penelitian ini adalah untuk mengetahui respons pertumbuhan biomassa bagian atas bibit kelapa sawit akibat pemberian kompos pelepah kelapa sawit yang dikombinasikan dengan pupuk hayati dan asam humat. Percobaan dilaksanakan di Kebun Percobaan Ciparanje, Fakultas Pertanian, Universitas Padjadjaran pada bulan Januari – Juli 2020. Penelitian disusun menggunakan Rancangan Acak Kelompok (RAK) dengan …


Place Cells Dynamically Refine Grid Cell Activities To Reduce Error Accumulation During Path Integration In A Continuous Attractor Model, Jose A Fernandez-Leon, Ahmet Kerim Uysal, Daoyun Ji Dec 2022

Place Cells Dynamically Refine Grid Cell Activities To Reduce Error Accumulation During Path Integration In A Continuous Attractor Model, Jose A Fernandez-Leon, Ahmet Kerim Uysal, Daoyun Ji

Faculty, Staff and Students Publications

Navigation is one of the most fundamental skills of animals. During spatial navigation, grid cells in the medial entorhinal cortex process speed and direction of the animal to map the environment. Hippocampal place cells, in turn, encode place using sensory signals and reduce the accumulated error of grid cells for path integration. Although both cell types are part of the path integration system, the dynamic relationship between place and grid cells and the error reduction mechanism is yet to be understood. We implemented a realistic model of grid cells based on a continuous attractor model. The grid cell model was …


Next-Generation Sequencing Shows Increasing Temperatures Affect Stream Fungal Communities, Regan Hodgson Dec 2022

Next-Generation Sequencing Shows Increasing Temperatures Affect Stream Fungal Communities, Regan Hodgson

Electronic Theses and Dissertations

Under climate change predictions, surface air temperature is expected to continue to rise and will likely affect functioning of stream ecosystems and microbial communities. Aquatic hyphomycetes are key fungal decomposers of plant litter in headwater streams controlling carbon, energy, and nutrient flows to higher trophic levels. This project addressed the effects of temperature on stream fungal communities in two recently conducted experiments (microcosm and streamside channel studies) using Illumina sequencing. The objectives were to determine (1) if temperature affects community structure of stream fungi based on relative abundances of ITS2 rDNA sequences, (2) if the effects of temperature on aquatic …


Potential Use Of Pgpr Based Biofertilizer For Improving The Nutrient Availability In Soil And Agronomic Efficiency Of Upland Rice, Rahma Tia Harahap, Diyan Herdiyantoro, Mieke Rochimi Setiawati, Isna Niar Rahmatul Azizah, Tualar Simarmata Dec 2022

Potential Use Of Pgpr Based Biofertilizer For Improving The Nutrient Availability In Soil And Agronomic Efficiency Of Upland Rice, Rahma Tia Harahap, Diyan Herdiyantoro, Mieke Rochimi Setiawati, Isna Niar Rahmatul Azizah, Tualar Simarmata

Jurnal Kultivasi

Present study aimed to perform literature review to investigate the current status and potential use of plant growth promoting rhizobacteria (PGPR) for enhancing the soil plant’s health, plant growth and productivity in sustainable ways. The Systematic Literature Review (SLR) methods was applied according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) on published scientific literature from 2012-2022. Results revealed that genus diversity of PGPR (Bacillus sp., Serratia sp., Streptomyces sp., Pseudomonas sp., and Burkholderia sp.) produce siderophore and phytohormones such as indole-3-acetic acid (IAA), gibberellin (GAs), auxin, and 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activity, organic acids, biocontrol agent that …


Predicting The Next Pandemic: Utilizing Wastewater-Based Epidemiology As A Novel Technique For Detecting Mpox Dna, Austin Tang, Michael Moshi, Hayley Baker, Ching-Lan Chang Dec 2022

Predicting The Next Pandemic: Utilizing Wastewater-Based Epidemiology As A Novel Technique For Detecting Mpox Dna, Austin Tang, Michael Moshi, Hayley Baker, Ching-Lan Chang

Undergraduate Research Symposium Lightning Talks

Mpox cases are trending downward in Las Vegas, aligning with national trends. The study demonstrates that it is possible to extract mpox DNA directly from wastewater and quantify the genetic material using qPCR. This research indicates that WBE can be utilized to give a relative abundance of virual nucleic acids in wastewater, giving opportunities for early-warning systems and other public health interventions. Mpox remains a global threat to public health, continued surveillance of MPXV using wastewater is necessary to ensure that we can detect unusual spike in viral DNA level. Mpox detected in the wastewater samples will be sequences to …


Quantification Of Sars-Cov-2 Prevalence Using Wastewater Surveillance, Moonis Ghani, Hayley Baker, Nabih Ghani, Anthony Harrington, Ching-Lan Chang Dec 2022

Quantification Of Sars-Cov-2 Prevalence Using Wastewater Surveillance, Moonis Ghani, Hayley Baker, Nabih Ghani, Anthony Harrington, Ching-Lan Chang

Undergraduate Research Symposium Lightning Talks

SARS-CoV-2 RNA was successfully detected in the wastewater samples. PMMoV concentrations varied little, meaning it was a valid control. The diversity of SARS-CoV-2 concentrations indicated varying levels of infection within different parts of the community. PCR and WGS can help determine viral load and identify variants.


Evaluation Of Novel Litter Amendments For Use In The Commercial Broiler Industry, Jorge A. Urrutia Dec 2022

Evaluation Of Novel Litter Amendments For Use In The Commercial Broiler Industry, Jorge A. Urrutia

Theses and Dissertations

Poultry litter amendments (LA) are commonly used to maintain good litter quality; the most common ones; are acidifiers. However, concern over the lifespan of LA acidifiers (d) and corrosive nature revealed a need for alternative LA. Products of interest include biochar (BC), superabsorbent polymers (SAPs), and alum mud (AM). Experiment 1 was a screening study (n=17 treatments, no birds) conducted to determine the optimal application rate/method of BC, SAPs, and AM vs.commercial LA and a control. Most SAPs treatments measured metrics may be similar (i.e., bacteria, water activity) or better (pH) vs. commercial LA (PLT). High inclusions of novel LA …


Survival, Regrowth And Morphotype Formation Of Salmonella Strains After Exposure To High Or Low Concentrations Of First Generation Qac In Water, Grace Umutesi Dec 2022

Survival, Regrowth And Morphotype Formation Of Salmonella Strains After Exposure To High Or Low Concentrations Of First Generation Qac In Water, Grace Umutesi

Theses and Dissertations

This study determines the differences in survival of eight Salmonella strains concentration of BAC in water, followed by regrowth in high and low nutrition conditions containing sublethal concentration of BAC. Our results show strain difference in survival, persistence of Salmonella in BAC at different concentrations. All eight strains of Salmonella were non-recoverable when exposed to 40 to 48 µg/ml BAC for 1h in water. When exposed to 24 µg/ml of BAC for 1 h in water, S. Typhimurium ATCC 14028 and S. Heidelberg ATCC 8326 cells were non-detectable from the initial 7 log CFU/ml. S. Blockley 7175, S. Virchow 7207, …


Metagenomic Analysis Of Root-Associated Microbiome Of Healthy And Taproot Decline-Affected Soybeans And Identification Of Healthy Soybean Root Endophytes With Protective Activity Against The Causal Agent, Xylaria Necrophora, Uyen Wesser Dec 2022

Metagenomic Analysis Of Root-Associated Microbiome Of Healthy And Taproot Decline-Affected Soybeans And Identification Of Healthy Soybean Root Endophytes With Protective Activity Against The Causal Agent, Xylaria Necrophora, Uyen Wesser

Theses and Dissertations

Plant roots are associated with a diverse microbial community of bacteria and fungi. The root microbiome communities associate with the root surface or penetrate the superficial layers of root tissues. It is of high agronomic interest to characterize root microbiomes and identify microbes with beneficial effects on plant defense against pathogens. Soybean taproot decline (TRD) is an emerging soil-borne disease caused by a fungus classified as Xylaria necrophora, challenging to control and with devastating effects on yield. Our group has initiated a study of the soybean root microbiome with three primary experiments: (I) perform a comparative study of root …


Effects Of Microcystin-Lr On Channel Catfish (Ictalurus Punctatus) Susceptibility To Microbial Pathogens (Aeromonas Hydrophila And Edwardsiella Piscicida), Alison Marchant Dec 2022

Effects Of Microcystin-Lr On Channel Catfish (Ictalurus Punctatus) Susceptibility To Microbial Pathogens (Aeromonas Hydrophila And Edwardsiella Piscicida), Alison Marchant

Theses and Dissertations

Microcystin-LR is a hepatotoxin produced by cyanobacteria. Aeromonas hydrophila and Edwardsiella piscicida infections are leading causes of losses in market-sized channel catfish (Ictalurus punctatus). These older fish should have natural immunity in place and a predisposing factor is likely a prerequisite for these disease outbreaks. While microcystin-LR rarely causes mortality in warm-water aquaculture, we believe it may be a predisposing factor that leads to bacterial disease outbreaks during the summer months due to its ability to damage the liver. Our study investigated microcystin-LR’s effects on channel catfish susceptibility to these pathogens. We found that a sublethal dose of microcystin-LR induced …


Molecular And Phenotypic Characterization Of Escherichia Coli Isolated From Broiler Chicken Flocks In Mississippi, Priyanka Devkota Dec 2022

Molecular And Phenotypic Characterization Of Escherichia Coli Isolated From Broiler Chicken Flocks In Mississippi, Priyanka Devkota

Theses and Dissertations

Avian pathogenic Escherichia coli (APEC) is the causative agent of colibacillosis. APEC causes significant economic losses to the poultry industry. In this study, 66 E. coli isolates were collected from broiler flocks across Mississippi and categorized as clinical and non-clinical isolates. Genotypic and phenotypic characterization of virulence factors and antimicrobial resistance profiles of these E. coli were examined. The data disclosed a higher prevalence of virulence genes in clinical isolates than in non-clinical isolates. High differences on the genotypic and phenotypic antimicrobial resistance among clinical and non-clinical isolates were observed. Whole genome sequences of avian E. coli elaborated a diverse …


The Expanding Marine Built Environment And Biofilm Formation Processes, Rachel Mugge Dec 2022

The Expanding Marine Built Environment And Biofilm Formation Processes, Rachel Mugge

Dissertations

The marine built environment (i.e., places or things made or modified by humans) in the northern Gulf of Mexico is rapidly expanding and includes over 2,000 known historic shipwrecks, nearly 4,100 artificial reefs, and other built structures for natural resource extraction, marine aquaculture, renewable energy generation, munitions dumping areas, and commercial and recreational activities. While these structures have the potential to develop into artificial reefs, acting as biodiversity hotspots that provide food and shelter and facilitate organism transport, it is unclear how they affect biodiversity and ecosystem function in the marine environment. The success of artificial reefs to become ecosystems …