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2023

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Articles 151 - 180 of 507

Full-Text Articles in Microbiology

Microbial Commensals Of Tricolored Bats In Georgia And Their Probiotic Potential, Jordyn Upton Jul 2023

Microbial Commensals Of Tricolored Bats In Georgia And Their Probiotic Potential, Jordyn Upton

Master of Science in Integrative Biology Theses

Pseudogymnoascus destructans (Pd) is a fungal pathogen that has been spreading in North American bats since its initial discovery in 2006. P. destructans is the causative agent of white-nose syndrome (WNS), a disease leading to as much as a 90% decrease in some eastern United States bat populations, with select hibernacula experiencing complete extirpation of the hibernating population. To date, there is no effective scaled probiotic for WNS, but probiotics inoculums have shown success in the management of other recently emerged fungal pathogens of wildlife, such as chytridiomycosis in amphibians. Host microbiomes have come under investigation in other disease systems …


The Role Of Adenovirus Serotype 5 E4 11k In The Relocalization Of The Cellular P Body Proteins, Kasey A. Karen, La`Quita Randolph, Kevin Neubrecht, Heather Vincent Jul 2023

The Role Of Adenovirus Serotype 5 E4 11k In The Relocalization Of The Cellular P Body Proteins, Kasey A. Karen, La`Quita Randolph, Kevin Neubrecht, Heather Vincent

Georgia Journal of Science

Human adenoviruses are a useful tool to understand basic cellular biology in addition to viral infections. Historically, cellular splicing was first discovered in adenovirus, but other cellular processes, such as double-strand break repair and aggresome formation, have been further elucidated through adenoviral infection. The adenovirus protein E4 11k has been shown to disrupt cytoplasmic processing bodies (p bodies), which are not well-understood but are involved in mRNA metabolism. Several p body proteins were found to be reorganized in the cytoplasm with adenovirus serotype 5 (Ad5) able to cause the colocalization of these p body proteins with aggresomes. The p body …


N-Acetyltransferase 9 Ameliorates Aβ42-Mediated Neurodegeneration In The Drosophila Eye, Prajakta Deshpande, Anuradha Venkatakrishnan Chimata, Emily E. Snider, Aditi Singh, Madhuri Kango-Singh, Amit Singh Jul 2023

N-Acetyltransferase 9 Ameliorates Aβ42-Mediated Neurodegeneration In The Drosophila Eye, Prajakta Deshpande, Anuradha Venkatakrishnan Chimata, Emily E. Snider, Aditi Singh, Madhuri Kango-Singh, Amit Singh

Biology Faculty Publications

Alzheimer’s disease (AD), a progressive neurodegenerative disorder, manifests as accumulation of amyloid-beta-42 (Aβ42) plaques and intracellular accumulation of neurofibrillary tangles (NFTs) that results in microtubule destabilization. Targeted expression of human Aβ42 (GMR > Aβ42) in developing Drosophila eye retinal neurons results in Aβ42 plaque(s) and mimics AD-like extensive neurodegeneration. However, there remains a gap in our understanding of the underlying mechanism(s) for Aβ42-mediated neurodegeneration. To address this gap in information, we conducted a forward genetic screen, and identified N-acetyltransferase 9 (Mnat9) as a genetic modifier of GMR > Aβ42 neurodegenerative phenotype. Mnat9 is known to stabilize microtubules by inhibiting c-Jun-N- …


Investigating The Physiological Mechanisms Between Resistance Training And Pain Relief In The Cancer Population: A Literature Review, Yvonne Jiang, Peter C. Angeletti, Amy J. Hoffman Jul 2023

Investigating The Physiological Mechanisms Between Resistance Training And Pain Relief In The Cancer Population: A Literature Review, Yvonne Jiang, Peter C. Angeletti, Amy J. Hoffman

Nebraska Center for Virology: Faculty Publications

This literature review examines the mechanisms of how exercise, specifically in the form of resistance training, may lead to pain relief in the cancer population. Primary data from three different cancer populations: breast, prostate, and lung, will be examined. A number of experimental studies have been conducted to confirm the effectiveness of resistance training on pain relief as well as the biochemical pathways that relate to this process. In this review, we will examine 5 randomized controlled trials. For the purposes of this review, pain is defined as physical suffering or discomfort associated with illness. Pain is the body’s natural …


Sars‑Cov‑2 Entry Into And Evolution Within A Skilled Nursing Facility, Nicole R. Sexton, Parker Parker Cline, Emily N. Gallichotte, Emily Fitzmeyer, Michael C. Young, Ashley J. Janich, Kristy L. Pabilonia, Nicole Ehrhart, Gregory D. Ebel Jul 2023

Sars‑Cov‑2 Entry Into And Evolution Within A Skilled Nursing Facility, Nicole R. Sexton, Parker Parker Cline, Emily N. Gallichotte, Emily Fitzmeyer, Michael C. Young, Ashley J. Janich, Kristy L. Pabilonia, Nicole Ehrhart, Gregory D. Ebel

Nebraska Center for Virology: Faculty Publications

SARS-CoV-2 belongs to the family Coronaviridae which includes multiple human pathogens that have an outsized impact on aging populations. As a novel human pathogen, SARS-CoV-2 is undergoing continuous adaptation to this new host species and there is evidence of this throughout the scientific and public literature. However, most investigations of SARS-CoV-2 evolution have focused on largescale collections of data across diverse populations and/or living environments. Here we investigate SARS-CoV-2 evolution in epidemiologically linked individuals within a single outbreak at a skilled nursing facility beginning with initial introduction of the pathogen. The data demonstrate that SARSCoV- 2 was introduced to the …


Evaluation Of Bio-Friendly Formulations From Siderophore-Producing Fluorescent Pseudomonas As Biocontrol Agents For The Management Of Soil-Borne Fungi, Fusarium Oxysporum And Rhizoctonia Solani, Gaber Attia Abo-Zaid, Ahmed Salah Abdullah, Nadia Abdel-Mohsen Soliman, Ebaa Ebrahim El-Sharouny, Abdulaziz A. Al-Askar, Yiming Su, Ahmed Abdelkhalek, Soraya Abdel-Fattah Sabry Jul 2023

Evaluation Of Bio-Friendly Formulations From Siderophore-Producing Fluorescent Pseudomonas As Biocontrol Agents For The Management Of Soil-Borne Fungi, Fusarium Oxysporum And Rhizoctonia Solani, Gaber Attia Abo-Zaid, Ahmed Salah Abdullah, Nadia Abdel-Mohsen Soliman, Ebaa Ebrahim El-Sharouny, Abdulaziz A. Al-Askar, Yiming Su, Ahmed Abdelkhalek, Soraya Abdel-Fattah Sabry

Civil and Environmental Engineering Faculty Publications

Secretion of siderophores by Pseudomonas aeruginosa F2 and P. fluorescens JY3 was evaluated on chrome azurol S (CAS) agar plates and their inhibitory effect was inspected against Fusarium oxysporum and Rhizoctonia solani. Production of siderophores as biocontrol agents from F2 and JY3 was accomplished in two optimized media. Afterward, cell-free supernatants of the bacterial cultures containing siderophores were used for the preparation of two bio-friendly formulations for the management of F. oxysporum and R. solani under greenhouse conditions. The investigated bacterial isolates, F2 and JY3, showed antagonistic activity in vitro against F. oxysporum and R. solani and produced siderophores …


Evaluating Vaccine Management Strategies For Edwardsiella Ictaluri Infections In Zebrafish (Danio Rerio), Brandy Malbrough Jul 2023

Evaluating Vaccine Management Strategies For Edwardsiella Ictaluri Infections In Zebrafish (Danio Rerio), Brandy Malbrough

LSU Master's Theses

Aquaculture is a globally important industry that faces significant challenges due to infectious diseases, which can result in substantial financial losses. In 2011, a new strain of Edwardsiella ictaluri emerged as a major pathogen affecting zebrafish in the ornamental fish industry, leading to high mortality rates and posing a severe threat to the sector. Vaccines provide potential benefits for disease prevention in aquaculture, particularly live-attenuated vaccines (LAVs), which induce strong host immune responses. Bacterial attenuation for vaccine development has evolved from serial passage to more targeted genetic modification techniques. However, regulatory constraints limit the availability of licensed LAVs for aquaculture. …


Microbe Hunters, Paul De Kruif Jul 2023

Microbe Hunters, Paul De Kruif

Zea E-Books Collection

Microbe Hunters by Paul de Kruif was first published in 1926 by Harcourt, Brace and Company, New York. It dramatically recounts the breakthrough discoveries of the fundamental elements of bacteriology. It features exciting profiles of Antony Leeuwenhoek, Lazzaro Spallanzani, Louis Pasteur, Robert Koch, Émile Roux, Emil Behring, Élie Metchnikoff, Theobald Smith, David Bruce, Ronald Ross, Battista Grassi, Walter Reed, and Paul Ehrlich. Their development of germ theory and its scientific proofs led to the first effective treatments for human diseases like anthrax, rabies, diptheria, malaria, sleeping sickness, syphilis, and yellow fever. They also made discoveries that saved the dairy, wine, …


Diving Into Aquatic Microbial Ecology And Evolution With Anne Thompson, Anne Thompson Jul 2023

Diving Into Aquatic Microbial Ecology And Evolution With Anne Thompson, Anne Thompson

PDXPLORES Podcast

On this episode of PDXPLORES, Assistant Professor of Biology, Anne Thompson, discusses her award-winning research work studying the diverse ecology of microorganisms found in Earth’s oceans. Thompson’s research examines microbial mortality impacts on the structure of oceanic food webs, carbon flow, and cell interactions that create dynamic patterns of nutrient and energy abundance within diverse aquatic ecosystems.

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Roving Methyltransferases Generate A Mosaic Epigenetic Landscape And Influence Evolution In Bacteroides Fragilis Group, Michael J Tisza, Derek D N Smith, Andrew E Clark, Jung-Ho Youn, Pavel P Khil, John P Dekker Jul 2023

Roving Methyltransferases Generate A Mosaic Epigenetic Landscape And Influence Evolution In Bacteroides Fragilis Group, Michael J Tisza, Derek D N Smith, Andrew E Clark, Jung-Ho Youn, Pavel P Khil, John P Dekker

Faculty, Staff and Students Publications

Three types of DNA methyl modifications have been detected in bacterial genomes, and mechanistic studies have demonstrated roles for DNA methylation in physiological functions ranging from phage defense to transcriptional control of virulence and host-pathogen interactions. Despite the ubiquity of methyltransferases and the immense variety of possible methylation patterns, epigenomic diversity remains unexplored for most bacterial species. Members of the Bacteroides fragilis group (BFG) reside in the human gastrointestinal tract as key players in symbiotic communities but also can establish anaerobic infections that are increasingly multi-drug resistant. In this work, we utilize long-read sequencing technologies to perform pangenomic (n = …


Yes-Associated Protein-1 Overexpression In Ocular Surface Squamous Neoplasia; A Potential Diagnostic Marker And Therapeutic Target, Peter Julius, Stepfanie N. Siyumbwa, Fred Maate, Phyllis Moonga, Guobin Kang, Trevor Kaile, John T. T., Charles Wood Jul 2023

Yes-Associated Protein-1 Overexpression In Ocular Surface Squamous Neoplasia; A Potential Diagnostic Marker And Therapeutic Target, Peter Julius, Stepfanie N. Siyumbwa, Fred Maate, Phyllis Moonga, Guobin Kang, Trevor Kaile, John T. T., Charles Wood

Nebraska Center for Virology: Faculty Publications

Yes-associated protein-1 (YAP-1) is a Hippo system transcription factor, which serves as an oncogene in squamous cell carcinoma, and several solid tumors when the Hippo pathway is dysregulated. Yet, the activity of YAP-1 in ocular surface squamous neoplasia (OSSN) has not been determined. Here, we investigate the relationship between YAP-1 overexpression and OSSN. Using a cross-sectional study design, we recruited 227 OSSN patients from the University Teaching Hospitals in Lusaka, Zambia. Immunohistochemistry was used to assess YAP-1 protein overexpression in tumor tissue relative to surrounding benign squamous epithelium. OSSN patient samples (preinvasive, n = 62, 27% and invasive, n = …


Horizontal Transfer Of Probable Chicken-Pathogenicity Chromosomal Islands Between Staphylococcus Aureus And Staphylococcus Agnetis, Douglas D. Rhoads, Jeff Pummil, Nnamdi S. Ekesi, Adnan A.K. Alrubaye Jul 2023

Horizontal Transfer Of Probable Chicken-Pathogenicity Chromosomal Islands Between Staphylococcus Aureus And Staphylococcus Agnetis, Douglas D. Rhoads, Jeff Pummil, Nnamdi S. Ekesi, Adnan A.K. Alrubaye

Cell and Molecular Biology Faculty Publications and Presentations

Staphylococcus agnetis is an emerging pathogen in chickens but has been most commonly isolated from sub-clinical mastitis in bovines. Previous whole-genome analyses for known virulence genes failed to identify determinants for the switch from mild ductal infections in cattle to severe infections in poultry. We now report identification of a family of 15 kbp, 17–19 gene mobile genetic elements (MGEs) specific to chicken osteomyelitis and dermatitis isolates of S. agnetis. These MGEs can be present in multiple copies per genome. The MGE has been vectored on a Staphylococcus phage that separately lysogenized two S. agnetis osteomyelitis strains. …


Silver Ions Inhibit Bacterial Movement And Stall Flagellar Motor, Benjamin Russell, Ariel Rogers, Ryan Yoder, Matthew Kurilich, Venkata Rao Krishnamurthi, Jingy Chen, Yong Wang Jul 2023

Silver Ions Inhibit Bacterial Movement And Stall Flagellar Motor, Benjamin Russell, Ariel Rogers, Ryan Yoder, Matthew Kurilich, Venkata Rao Krishnamurthi, Jingy Chen, Yong Wang

Physics Faculty Publications and Presentations

Silver (Ag) in different forms has been gaining broad attention due to its antimicrobial activities and the increasing resistance of bacteria to commonly prescribed antibiotics. However, various aspects of the antimicrobial mechanism of Ag have not been understood, including how Ag affects bacterial motility, a factor intimately related to bacterial virulence. Here, we report our study on how Ag+ ions affect the motility of E. coli bacteria using swimming, tethering, and rotation assays. We observed that the bacteria slowed down dramatically by >70% when subjected to Ag+ ions, providing direct evidence that Ag+ ions inhibit the motility …


Characterization Of Antimicrobial Properties Of Excrement And Functional Microbiome Of Black Vultures (Coragyps Atratus), Bridgette Gray Jul 2023

Characterization Of Antimicrobial Properties Of Excrement And Functional Microbiome Of Black Vultures (Coragyps Atratus), Bridgette Gray

Theses

Black vultures, Coragyps atratus, are obligate scavenging birds that consume and dispose of decaying carcasses and carrion. They fulfill a key ecological niche in the environments in which they live. It has been observed that these vultures sometimes excrete bodily waste onto their legs. This adaptive behavior could help aid them in controlling bacteria and other microbes they encounter while stepping into a carcass to eat. This study directly examined the antimicrobial properties of the excrement of black vultures across various bacterial species utilizing a zone of inhibition test and a nematode species utilizing a survival assay. The black vulture …


Sympatric Soil Microbe Interactions Between Streptomyces And Fusarium Isolates, Lehren A. Olk-Szost Jul 2023

Sympatric Soil Microbe Interactions Between Streptomyces And Fusarium Isolates, Lehren A. Olk-Szost

All NMU Master's Theses

Interkingdom interactions between soil bacteria and fungi may play a critical role in occurrence of disease suppressive soils, yet our understanding of these interactions remains limited. Streptomyces are well-known producers of antimicrobial compounds important to medicine and agriculture. Production of these secondary metabolites is often mediated by quorum sensing. Most Streptomyces research occurs in single species experiments, yet new metabolites have been discovered in interspecies co-culture experiments. Interspecies, intergenic, and interkingdom co-culture research will likely reveal many valuable compounds, and strengthen our understanding of complex ecological interactions in soil microbiomes. Interactions between sympatric Streptomyces and Fusarium isolates from disease suppressive …


Nac1 Confines Virus‐Specific Memory Formation Of Cd4+ T Cells Through The Rock1‐Mediated Pathway, Liqing Wang, Hao-Yun Peng, Jugal Kishore Das, Anil Kumar, Yijie Ren, Darby J. Ballard, Xiaofang Xiong, Wen Yang, Xingcong Ren, Paul De Figueiredo, Jin-Ming Yang, Jianxun Song Jul 2023

Nac1 Confines Virus‐Specific Memory Formation Of Cd4+ T Cells Through The Rock1‐Mediated Pathway, Liqing Wang, Hao-Yun Peng, Jugal Kishore Das, Anil Kumar, Yijie Ren, Darby J. Ballard, Xiaofang Xiong, Wen Yang, Xingcong Ren, Paul De Figueiredo, Jin-Ming Yang, Jianxun Song

Markey Cancer Center Faculty Publications

Nucleus accumbens‐associated protein 1 (NAC1), a transcriptional cofactor, has been found to play important roles in regulating regulatory T cells, CD8 + T cells, and antitumor immunity, but little is known about its effects on T‐cell memory. In this study, we found that NAC1 expression restricts memory formation of CD4 + T cells during viral infection. Analysis of CD4 + T cells from wild‐type (WT) and NAC1‐ deficient (−/−) mice showed that NAC1 is essential for T‐cell metabolism, including glycolysis and oxidative phosphorylation, and supports CD4 + T‐cell survival in vitro. We further demonstrated that a deficiency of NAC1 downregulates …


Longitudinal Analysis Of The Evolution Of Cellular Immunity To Sars-Cov-2 Induced By Infection And Vaccination, Spyridoula Vasileiou, Manik Kuvalekar, Yovana Velazquez, Ayumi Watanabe, Mansi Narula, Aster G Workineh, Matthew French-Kim, Alejandro Torres Chavez, Sarah Gilmore, Cliona M Rooney, Ann M Leen Jul 2023

Longitudinal Analysis Of The Evolution Of Cellular Immunity To Sars-Cov-2 Induced By Infection And Vaccination, Spyridoula Vasileiou, Manik Kuvalekar, Yovana Velazquez, Ayumi Watanabe, Mansi Narula, Aster G Workineh, Matthew French-Kim, Alejandro Torres Chavez, Sarah Gilmore, Cliona M Rooney, Ann M Leen

Faculty, Staff and Students Publications

No abstract provided.


Vincristine/Irinotecan/Temsirolimus Upfront Window Treatment Of High-Risk Hepatoblastoma: A Report From The Children’S Oncology Group Ahep0731 Study Committee, Patrick A Thompson, Marcio H Malogolowkin, Wayne L Furman, Jin Piao, Mark D Krailo, Nadia Chung, Lindsay Brock, Alexander J Towbin, Elizabeth B Mccarville, Milton J Finegold, Sarangarajan Ranganathan, Stephen P Dunn, Max R Langham, Eugene D Mcgahren, Gregory M Tiao, Christopher B Weldon, Allison F O'Neill, Carlos Rodriguez-Galindo, Rebecka L Meyers, Howard M Katzenstein Jul 2023

Vincristine/Irinotecan/Temsirolimus Upfront Window Treatment Of High-Risk Hepatoblastoma: A Report From The Children’S Oncology Group Ahep0731 Study Committee, Patrick A Thompson, Marcio H Malogolowkin, Wayne L Furman, Jin Piao, Mark D Krailo, Nadia Chung, Lindsay Brock, Alexander J Towbin, Elizabeth B Mccarville, Milton J Finegold, Sarangarajan Ranganathan, Stephen P Dunn, Max R Langham, Eugene D Mcgahren, Gregory M Tiao, Christopher B Weldon, Allison F O'Neill, Carlos Rodriguez-Galindo, Rebecka L Meyers, Howard M Katzenstein

Faculty, Staff and Students Publications

Background: Survival for children with metastatic hepatoblastoma (HB) remains suboptimal. We report the response rate and outcome of two courses of vincristine/irinotecan/temsirolimus (VIT) in children with high-risk (HR)/metastatic HB.

Procedures: Patients with newly diagnosed HB received HR window chemotherapy if they had metastatic disease or a serum alpha-fetoprotein (AFP) level less than 100 ng/mL. Patients received vincristine (days 1 and 8), irinotecan (days 1-5), and temsirolimus (days 1 and 8). Cycles were repeated every 21 days. Responders had either a 30% decrease using RECIST (Response Evaluation Criteria in Solid Tumors) criteria OR a 90% (>1 log10 decline) AFP decline …


Exploring The Interactions Between Sars-Cov-2 And Host Proteins, Sojan Shrestha Jul 2023

Exploring The Interactions Between Sars-Cov-2 And Host Proteins, Sojan Shrestha

School of Biological Sciences: Dissertations, Theses, and Student Research

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the current pandemic, Coronavirus Disease 2019 (COVID-19). SARS-CoV-2 is considered to be of zoonotic origin; it originated in non-human animals and was transmitted to humans. Since the early stage of the pandemic, however, the evidence of transmissions from humans to animals (reverse zoonoses) has been found in multiple animal species including mink, white-tailed deer, and pet and zoo animals. Furthermore, secondary zoonotic events of SARS-CoV-2, transmissions from animals to humans, have been also reported. It is suggested that non-human hosts can act as SARS-CoV-2 reservoirs where accumulated …


Biofilms And Their Role On Diseases, Vijay Singh Gondil, Bindu Subhadra Jul 2023

Biofilms And Their Role On Diseases, Vijay Singh Gondil, Bindu Subhadra

Faculty Publications - Biological Sciences

Biofilms are complex, three-dimensional structures that provide a long-established survival mechanism for microorganisms. Biofilms play a substantial role in pathogenesis as they can evade the immune response and be highly resistant to conventional antimicrobials, thus impacting the human health and healthcare system. To address this issue, BMC Microbiology invites submissions to the collection ‘Biofilms and its impact on disease’.


Determination Of Epigallocatechin Gallate (Egcg) And Antibacterial Activities Of Commercially Available Tanzanian Green Tea (Camellia Sinensis), Raphael J Shedafa, Joseph Sempombe, Ramadhan So Nondo, Eliangiringa Kaale, Mary Temu, Peter Imming Jun 2023

Determination Of Epigallocatechin Gallate (Egcg) And Antibacterial Activities Of Commercially Available Tanzanian Green Tea (Camellia Sinensis), Raphael J Shedafa, Joseph Sempombe, Ramadhan So Nondo, Eliangiringa Kaale, Mary Temu, Peter Imming

Tanzania Journal of Science

This paper presents the results of the antibacterial activity of green tea extract (Camellia sinensis) against Staphylococcus aureus (ATCC 29213), Escherichia coli (ATCC 25922), and Klebsiella pneumoniae (ATCC 708903). Quantitative and qualitative measurements of epigallocatechin gallate (EGCG) have also been reported. The analysis by High Performance Thin Layer Chromatography (HPTLC) revealed the presence of epigallocatechin gallate (EGCG) in the green tea extracts ranging from 13.16 to 18.64 mg/g. Crude extracts GT 01–GT 03 inhibited a greater number of microorganisms and presented the lowest values of MIC against Staphylococcus aureus (0.625 mg/mL), Escherichia coli (0.625 mg/mL), and Klebsiella pneumoniae (1.25 mg/mL). …


Synthesis, Characterization And Antimicrobial Properties Of Mixed-Ligand Complexes Of Some Metal(Ii) Ions With Barbituric Acid And 1,10-Phenanthroline Ligands, Kayode Taiwo Ishola, Oluwabiyi James Olaoye, Mary Adelaide Oladipo, Omobola Ajibike Odedokun, Oyebanji Oluseun Aboyeji Jun 2023

Synthesis, Characterization And Antimicrobial Properties Of Mixed-Ligand Complexes Of Some Metal(Ii) Ions With Barbituric Acid And 1,10-Phenanthroline Ligands, Kayode Taiwo Ishola, Oluwabiyi James Olaoye, Mary Adelaide Oladipo, Omobola Ajibike Odedokun, Oyebanji Oluseun Aboyeji

Tanzania Journal of Science

Many pathogenic organisms have developed resistance to many antibiotics, which leads to an increase in the spread of many microbial infections. There is an urgent need to find more effective drugs to curb widespread transmission. Hence, this study synthesized and evaluated the antimicrobial activities of mixed-ligand complexes of Cu(II), Co(II), Ni(II), Mn(II), and Zn(II) ions with barbituric acid and 1,10 phenanthroline ligands in effort to find more effective antibiotics. The complexes were characterized using elemental analysis, metal analysis, melting points, solubility tests, and spectroscopic analyses (IR and UV-visible). The antimicrobial activities of the complexes were evaluated against two gram-positive bacteria …


Assessment Of Antimicrobial Competence Of Epiphytes And Endophytes From Osmium Basilicum And Trigonella Foenum Graecum, Iram Asim, Atia Iqbal, Muhammad Ikrama Tanveer Jun 2023

Assessment Of Antimicrobial Competence Of Epiphytes And Endophytes From Osmium Basilicum And Trigonella Foenum Graecum, Iram Asim, Atia Iqbal, Muhammad Ikrama Tanveer

Journal of Bioresource Management

Plant-associated bacteria are an unexplored group of microorganisms that has enormous potential. These bacteria are the source of finding new antimicrobial substances. The present study aimed to isolate and characterize the epiphytes and endophytes from Osmium basilicum and Trigonella foenum graecum plants and to determine their antimicrobial potential against pathogenic bacteria from Nishtar Hospital Multan, Pakistan. The sum of 18 stems and roots along leaf specimens were assembled as of the plant's Osmium basilicum plus Trigonella foenum graecum as of the distinct locales of the Multan city. Overall 73 bacterial strains were isolated and their colony morphology, gram staining, spore …


Endophytic Potential Of Entomopathogenic Fungi For The Remediation Of Wastewater, Huda Bilal, Hasnain Raza, Sana Sarfaraz, Danyal Haider Khan Jun 2023

Endophytic Potential Of Entomopathogenic Fungi For The Remediation Of Wastewater, Huda Bilal, Hasnain Raza, Sana Sarfaraz, Danyal Haider Khan

Journal of Bioresource Management

Phytoremediation has the potential to significantly reduce water contamination caused by excessive harmful chemicals. The degradative properties of fungi are used in fungal phytoremediation to eliminate or neutralise the hazardous pollutants present in water. The goal of the current study was to endophytize water lettuce with the two entomopathogenic fungus Metarhizium anisopilae and Trichoderma harazium. The plant is inoculated with the fungus using the root-dipping procedure. There were two main treatments and a control all with five replications. The analysis of plant and wastewater were analyzed initially like frequency of fungus remained in plant weight, root length and for …


A Review On Antibiotic Resistance And The Use Of Medicinal Plants In The Management Of Uropathogenic Bacteria, Hubza Ruatt Khan, Mehvish Javeed, Iqra Batool, Rabeea Anwar, Asma Ashraf, Sara Janiad Jun 2023

A Review On Antibiotic Resistance And The Use Of Medicinal Plants In The Management Of Uropathogenic Bacteria, Hubza Ruatt Khan, Mehvish Javeed, Iqra Batool, Rabeea Anwar, Asma Ashraf, Sara Janiad

Journal of Bioresource Management

UTIs are the most prevalent infections and are caused by uropathogenic microbes such as Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa, Staphylococcus aureus, and Enterococcus spp. Antibiotic resistance has hampered the management of UTIs over the years, with direct repercussions on the treatment cost, the infection severity, and the duration of hospitalization. This review discussed the route of infections, risk factors connected to UTIs, antibiotic resistance issues as well as an alternative therapy to overcome the problem of antibiotic resistance. The medicinal plants, which have been utilized for thousands of years to cure a variety of ailments, represent a …


In Vitro Evaluation Of Antibacterial And Anticoagulant Activities Of Harmala Alkaloids Roots, Amel Benbott, Sabah Boukeria, Hakima Beldi, Kanza Kadi, Abdelouahab Yahia Jun 2023

In Vitro Evaluation Of Antibacterial And Anticoagulant Activities Of Harmala Alkaloids Roots, Amel Benbott, Sabah Boukeria, Hakima Beldi, Kanza Kadi, Abdelouahab Yahia

Journal of Bioresource Management

Peganum harmala L. is a wild herbal plant rich in active compounds, and is among the most used plants in local medicine. The purpose of this study is to contribute to the evaluation of some biological activities of alkaloids extract of P. harmala roots. Using the classical method of extraction of β-carboline alkaloids, the yield of alkaloids in the roots was estimated at 2.34 %. The thin layer chromatography (TLC) method identified the two components Harmine and Hrmaline in the total alkaloid extract of the roots. We evaluated the antibacterial activity of harmala alkaloids in roots against three referenced bacterial …


Molecular Epidemiology Of Antibiotic Resistance Among Escherichia Coli Isolated From Broiler Chickens Sold At Selected Markets In Dar Es Salaam, Tanzania, Abdilahi H. Kiula, Victor A. Makene Jun 2023

Molecular Epidemiology Of Antibiotic Resistance Among Escherichia Coli Isolated From Broiler Chickens Sold At Selected Markets In Dar Es Salaam, Tanzania, Abdilahi H. Kiula, Victor A. Makene

Tanzania Journal of Science

Unwarranted and improper uses of antibiotics in broiler farms contribute to the challenge of antibiotic resistance, making even previously treatable infections, difficult to treat. We conducted a cross sectional study from November 2021 to May 2022 from broiler chicken markets in four districts of Dar es Salaam to determine the extent of antibiotic resistance among E. coli isolates from broiler chickens. A total of 160 E. coli isolates recovered from cloacal swabs were identified by culture and biochemical tests and confirmed by Polymerase Chain Reaction (PCR) assays. Antimicrobial susceptibility testing, targeting seven classes of antibiotics, was performed by disk diffusion …


The Pros Of Changing Trna Identity, Michael Ibba Jun 2023

The Pros Of Changing Trna Identity, Michael Ibba

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The notion that errors in protein synthesis are universally harmful to the cell has been questioned by findings that suggest such mistakes may sometimes be beneficial. However, how often these beneficial mistakes arise from programmed changes in gene expression as opposed to reduced accuracy of the translation machinery is still unclear. A new study published in JBC shows that some bacteria have beneficially evolved the ability to mistranslate specific parts of the genetic code, a trait that allows improved antibiotic resistance.


Acetate-Encapsulated Linolenic Acid Liposomes Reduce Sars-Cov-2 And Rsv Infection, Andrew R. Mcgill Jun 2023

Acetate-Encapsulated Linolenic Acid Liposomes Reduce Sars-Cov-2 And Rsv Infection, Andrew R. Mcgill

USF Tampa Graduate Theses and Dissertations

Coronavirus disease-19 (COVID-19), caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), is an ongoing pandemic-endemic. In the United States, it remains the third leading cause of death in 2022. SARS-CoV-2, an RNA virus, has a genome prone to rapid mutation, generating variant species capable of resisting therapies and vaccination efforts. However, it has been estimated that more than 40% of SARS-CoV-2 infections may be asymptomatic, which calls into question any biological differences between the asymptomatic and afflicted groups. Additionally, Respiratory Syncytial Virus (RSV) is the most significant cause of bronchiolitis and asthma in neonates, with an increasing burden on the …


Enhancing Lovastatin Biosynthesis In Oyster Mushrooms (Pleurotus Ostreatus) Using Phytohormones, Fransisca Astrid Mustafa, Mamat Kandar, I Nyoman Pugeg Aryantha Jun 2023

Enhancing Lovastatin Biosynthesis In Oyster Mushrooms (Pleurotus Ostreatus) Using Phytohormones, Fransisca Astrid Mustafa, Mamat Kandar, I Nyoman Pugeg Aryantha

Makara Journal of Science

The biosynthesis of lovastatin, the anti-cholesterol compound, in oyster mushrooms (Pleurotus ostreatus), has the potential to be enhanced by utilizing phytohormones, which activate the expression of certain genes. This research aimed to determine the best type and concentration of phytohormone among auxin, gibberellin, and cytokinin, as well as the best mycelial colonization percentage in F2 medium to realize the greatest increase in lovastatin biosynthesis in oyster mushrooms. Lovastatin was extracted from the fruiting bodies and mycelia and analyzed by spectrophotometry. The analysis of CYP450 linked to lovastatin biosynthesis was conducted by quantitative polymerase chain reaction (qPCR) using samples containing …