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Articles 181 - 210 of 454
Full-Text Articles in Microbiology
The Rice Blast Fungus Morgs1 Functioning In Camp Signaling And Pathogenicity Is Regulated By Casein Kinase Mock2 Phosphorylation And Modulated By Membrane Protein Moemc2, Rui Yu, Xuetong Shen, Muxing Liu, Xinyu Liu, Ziyi Yin, Xiao Li, Wanzhen Feng, Jiexiong Hu, Haifeng Zhang, Xiaobo Zheng, Ping Wang, Zhengguang Zhang
The Rice Blast Fungus Morgs1 Functioning In Camp Signaling And Pathogenicity Is Regulated By Casein Kinase Mock2 Phosphorylation And Modulated By Membrane Protein Moemc2, Rui Yu, Xuetong Shen, Muxing Liu, Xinyu Liu, Ziyi Yin, Xiao Li, Wanzhen Feng, Jiexiong Hu, Haifeng Zhang, Xiaobo Zheng, Ping Wang, Zhengguang Zhang
School of Graduate Studies Faculty Publications
GTP-binding protein (G-protein) and regulator of G-protein signaling (RGS) mediated signal transduction are critical in the growth and virulence of the rice blast pathogen Magnaporthe oryzae. We have previously reported that there are eight RGS and RGS-like proteins named MoRgs1 to MoRgs8 playing distinct and shared regulatory functions in M. oryzae and that MoRgs1 has a more prominent role compared to others in the fungus. To further explore the unique regulatory mechanism of MoRgs1, we screened a M. oryzae cDNA library for genes encoding MoRgs1-interacting proteins and identified MoCkb2, one of the two regulatory subunits of the casein kinase (CK) …
Sars-Cov-2 Vaccines Elicit Durable Immune Responses In Infant Rhesus Macaques, Carolina Garrido, Alan D. Curtis, Maria Dennis, Sachi H. Pathak, Hongmei Gao, David Montefiori, Mark Tomai, Christopher B. Fox, Pamela A. Kozlowski, Trevor Scobey, Jennifer E. Munt, Michael L. Mallory, Pooja T. Saha, Michael G. Hudgens, Lisa C. Lindesmith, Ralph S. Baric, Olubukola M. Abiona, Barney S. Graham, Kizzmekia S. Corbett, Darin Edwards
Sars-Cov-2 Vaccines Elicit Durable Immune Responses In Infant Rhesus Macaques, Carolina Garrido, Alan D. Curtis, Maria Dennis, Sachi H. Pathak, Hongmei Gao, David Montefiori, Mark Tomai, Christopher B. Fox, Pamela A. Kozlowski, Trevor Scobey, Jennifer E. Munt, Michael L. Mallory, Pooja T. Saha, Michael G. Hudgens, Lisa C. Lindesmith, Ralph S. Baric, Olubukola M. Abiona, Barney S. Graham, Kizzmekia S. Corbett, Darin Edwards
School of Graduate Studies Faculty Publications
The inclusion of infants in the SARS-CoV-2 vaccine rollout is important to prevent severe complications of pediatric SARS-CoV-2 infections and to limit transmission and could possibly be implemented via the global pediatric vaccine schedule. However, age-dependent differences in immune function require careful evaluation of novel vaccines in the pediatric population. Toward this goal, we assessed the safety and immunogenicity of two SARSCoV- 2 vaccines. Two groups of eight infant rhesus macaques (RMs) were immunized intramuscularly at weeks 0 and 4 with stabilized prefusion SARS-CoV-2 S-2P spike (S) protein encoded by mRNA encapsulated in lipid nanoparticles (mRNA-LNP) or the purified S …
Deacylated Trna Accumulation Is A Trigger For Bacterial Antibiotic Persistence Independent Of The Stringent Response, Whitney N. Wood, Kyle Mohler, Jesse Rinehart, Michael Ibba
Deacylated Trna Accumulation Is A Trigger For Bacterial Antibiotic Persistence Independent Of The Stringent Response, Whitney N. Wood, Kyle Mohler, Jesse Rinehart, Michael Ibba
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Bacterial antibiotic persistence occurs when bacteria are treated with an antibiotic and the majority of the population rapidly dies off, but a small subpopulation enters into a dormant, persistent state and evades death. Diverse pathways leading to nucleoside triphosphate (NTP) depletion and restricted translation have been implicated in persistence, suggesting alternative redundant routes may exist to initiate persister formation. To investigate the molecular mechanism of one such pathway, functional variants of an essential component of translation (phenylalanyltRNA synthetase [PheRS]) were used to study the effects of quality control on antibiotic persistence. Upon amino acid limitation, elevated PheRS quality control led …
Prophylactic Phage Therapy In Infant Rabbits Model Of Cholera, Sadeq Ag Kaabi Asst Prof Dr
Prophylactic Phage Therapy In Infant Rabbits Model Of Cholera, Sadeq Ag Kaabi Asst Prof Dr
Karbala International Journal of Modern Science
A number of 8 phages lytic of V. cholerae O1- biotype-EI-Tor, serotype Inaba were selected for the formulation of a phage cocktail. A phage cocktail composed of 8 phages was prepared and showed 100% inhibition of V. cholerae isolates comparing with a percentage ranged from 0-75% for every single phage in growth inhibition assay. The potential activity of phage cocktail of prophylactic therapy for infant rabbits model of cholera was evaluated through phage retention time and length of phage prophylaxis studies. Results have been showed that phage cocktail was potent in the prevention of development of cholera in infant rabbits …
Non-B Dna-Forming Motifs Promote Mfd-Dependent Stationary-Phase Mutagenesis In Bacillus Subtilis, Tatiana Ermi, Carmen Vallin, Ana Gabriela Regalado García, Moises Bravo, Ismaray Fernandez Cordero, Holly Anne Martin, Mario Pedraza-Reyes, Eduardo Robleto
Non-B Dna-Forming Motifs Promote Mfd-Dependent Stationary-Phase Mutagenesis In Bacillus Subtilis, Tatiana Ermi, Carmen Vallin, Ana Gabriela Regalado García, Moises Bravo, Ismaray Fernandez Cordero, Holly Anne Martin, Mario Pedraza-Reyes, Eduardo Robleto
Life Sciences Faculty Research
Transcription-induced mutagenic mechanisms limit genetic changes to times when expression happens and to coding DNA. It has been hypothesized that intrinsic sequences that have the potential to form alternate DNA structures, such as non-B DNA structures, influence these mechanisms. Non-B DNA structures are promoted by transcription and induce genome instability in eukaryotic cells, but their impact in bacterial genomes is less known. Here, we investigated if G4 DNA-and hairpin-forming motifs influence stationary-phase mutagenesis in Bacillus subtilis. We developed a system to measure the influence of non-B DNA on B. subtilis stationary-phase mutagenesis by deleting the wild-type argF at its chromosomal …
Microbial Screening Reveals Oral Site-Specific Locations Of The Periodontal Pathogen Selenomonas Noxia, Jaydene Mcdaniel, Steven Mcdaniel, Beanca Jhanine Samiano, Matthew Marrujo, Karl Kingsley, Katherine M. Howard
Microbial Screening Reveals Oral Site-Specific Locations Of The Periodontal Pathogen Selenomonas Noxia, Jaydene Mcdaniel, Steven Mcdaniel, Beanca Jhanine Samiano, Matthew Marrujo, Karl Kingsley, Katherine M. Howard
Dental Medicine Faculty Research
Introduction: Selenomonas noxia (SN) is an important periodontal pathogen, associated with gingivitis and periodontitis. Many studies have found associations between SN and indicators of poor health outcomes, such as smoking, low socioeconomic status and obesity. However, less is known about the prevalence of this organism and more specifically about other oral site-specific locations that may harbor this organism. Methods: Using an existing patient repository (n = 47) of DNA isolated from saliva and other oral sites (n = 235), including the dorsum of the tongue, lower lingual incisor, upper buccal molar and gingival crevicular fluid (GCF), molecular screening for SN …
Prevalence And Risk Factors Associated With Multi-Drug Resistant Organisms (Mdro) Carriage Among Pediatric Patients At The Time Of Admission In A Tertiary Care Hospital Of A Developing Country. A Cross-Sectional Study, Sonia Qureshi, Noshi Maria, Mohammad Zeeshan, Seema Irfan, Farah Naz Qamar
Prevalence And Risk Factors Associated With Multi-Drug Resistant Organisms (Mdro) Carriage Among Pediatric Patients At The Time Of Admission In A Tertiary Care Hospital Of A Developing Country. A Cross-Sectional Study, Sonia Qureshi, Noshi Maria, Mohammad Zeeshan, Seema Irfan, Farah Naz Qamar
Department of Paediatrics and Child Health
Background: The rise of Multidrug-resistant organisms (MDROs) poses a considerable burden on the healthcare systems, particularly in low-middle income countries like Pakistan. There is a scarcity of data on the carriage of MDRO particularly in the pediatrics population therefore, we aimed to determine MDRO carriage in pediatric patients at the time of admission to a tertiary care hospital in Karachi, Pakistan, and to identify the risk factors associated with it.
Methods: A cross-sectional study conducted at the pediatric department of Aga Khan University Hospital (AKUH) from May to September 2019 on 347 children aged 1-18 years. For identification of MDRO …
Development And Validation Of An Isothermal Amplification Assay For Eastern Equine Encephalitis Virus, Mikayla D. Maddison
Development And Validation Of An Isothermal Amplification Assay For Eastern Equine Encephalitis Virus, Mikayla D. Maddison
USF Tampa Graduate Theses and Dissertations
Eastern Equine Encephalitis virus (EEEV) is a neurotrophic alphavirus for which there is no effective treatment or vaccine for humans. Periodic outbreaks in the Eastern United States represent an ongoing public health problem; Florida serves as the reservoir for EEEV for the rest of the country. Reverse transcription-polymerase chain reaction (RT-PCR) is the current gold standard for molecular diagnostic testing of the presence of EEEV in vectors. However, RT-PCR is technically complex and can be difficult for mosquito control districts to utilize. In order to provide a simple, cost-effective alternative for mosquito surveillance and control, a novel one step reverse …
Draft Genome Sequences Of 13 Vibrio Cholerae Strains From The Rio Grande Delta, Jeffrey W. Turner, Jorge Duran-Gonzalez, David A. Laughlin, Daniel Unterweger, David Silva, Boris Ermolinsky, Stefan Pukatzki, Daniele Provenzano
Draft Genome Sequences Of 13 Vibrio Cholerae Strains From The Rio Grande Delta, Jeffrey W. Turner, Jorge Duran-Gonzalez, David A. Laughlin, Daniel Unterweger, David Silva, Boris Ermolinsky, Stefan Pukatzki, Daniele Provenzano
School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)
Vibrio cholerae is the etiologic agent of cholera, an acute and often fatal diarrheal disease that affects millions globally. We report the draft genome sequences of 13 non-O1/O139 V. cholerae strains isolated from the Rio Grande Delta in Texas. These genomes will aid future analyses of environmental serovars.
Draft Genome Sequences Of 13 Vibrio Cholerae Strains From The Rio Grande Delta, Jeffrey W. Turner, Jorge Duran-Gonzalez, David A. Laughlin, Daniel Unterweger, David Silva, Boris Ermolinsky, Stefan Pukatzki, Daniele Provenzano
Draft Genome Sequences Of 13 Vibrio Cholerae Strains From The Rio Grande Delta, Jeffrey W. Turner, Jorge Duran-Gonzalez, David A. Laughlin, Daniel Unterweger, David Silva, Boris Ermolinsky, Stefan Pukatzki, Daniele Provenzano
Publications and Research
Vibrio cholerae is the etiologic agent of cholera, an acute and often fatal diarrheal disease that affects millions globally. We report the draft genome sequences of 13 non-O1/O139 V. cholerae strains isolated from the Rio Grande Delta in Texas. These genomes will aid future analyses of environmental serovars.
Global Analysis Of High Cited Papers On “Impact Of Covid-19 On Mental Health” During 2020-21, Ghouse Modin Nabeesab Mamdapur Mr., Brij Mohan Gupta Dr., Sandeep Grover Dr.
Global Analysis Of High Cited Papers On “Impact Of Covid-19 On Mental Health” During 2020-21, Ghouse Modin Nabeesab Mamdapur Mr., Brij Mohan Gupta Dr., Sandeep Grover Dr.
Library Philosophy and Practice (e-journal)
A bibliometric analysis based on 160 highly cited papers extracted from the Scopus international database was carried out to provide insights into literature characteristics and publication performances of various participating actors on “Impact of COVID-19 on Mental Health”. Quantitative and qualitative Indicators were applied to measure the productivity and citation impact of most productive participating countries, organizations, authors, journals and significant keywords and to visualise and measure collaborative interaction among them using VOSviewer software. Results obtained from this study can provide valuable information for researchers and policy-makers to identify present and future hotspots in research on “Impact of COVID-19 on …
Development Of A Novel, High Resolution Melting Analysis Based Genotyping Method For Cryptosporidium Parvum, Jennifer K. O'Leary, Liam Blake, Gerard D. Corcoran, Roy D. Sleator, Brigid Lucey
Development Of A Novel, High Resolution Melting Analysis Based Genotyping Method For Cryptosporidium Parvum, Jennifer K. O'Leary, Liam Blake, Gerard D. Corcoran, Roy D. Sleator, Brigid Lucey
Department of Biological Sciences Publications
This study employed the post-real-time PCR application, high resolution melting (HRM) analysis, in order to differentiate between characterised clinical and reference Cryptosporidium parvum samples obtained from Cork University Hospital (Cork, Ireland) and the Cryptosporidium Reference Unit (Swansea, Wales). A sample set composed of 18 distinct C. parvum gp60-subtypes of the IIa gp60-subtype family (an allele family accounting for over 80% of all cryptosporidiosis cases in Ireland) was employed. HRM analysis-based interrogation of the gp60, MM5 and MS9-Mallon tandem repeat loci was found to completely differentiate between 10 of the 18 studied gp60-subtypes. The remaining eight gp60-subtypes were differentiated into three …
A Novel Genotyping Method For Cryptosporidium Hominis, Jennifer K. O'Leary, Liam Blake, Gerard D. Corcoran, Roy D. Sleator, Brigid Lucey
A Novel Genotyping Method For Cryptosporidium Hominis, Jennifer K. O'Leary, Liam Blake, Gerard D. Corcoran, Roy D. Sleator, Brigid Lucey
Department of Biological Sciences Publications
Cryptosporidiosis remains the leading protozoan induced cause of diarrhoea-associated mortality worldwide. Cryptosporidium hominis, the anthroponotically transmitted species within the Cryptosporidium genus, contributes significantly to the global burden of infection, accounting for the majority of clinical cases in many countries. This study applied high resolution melting analysis, a post-real-time PCR application, to the differentiation of six globally prevalent C. hominis gp60-subtypes. This novel method targeted three microsatellite, tandem repeat containing genetic markers, gp60, the genetic marker upon which current Cryptosporidium subtype nomenclature is based, MSB, and MSE, by which to differentiate between C. hominis isolates. This multi-locus approach successfully differentiated between …
Effects Of Traditional And Microbially-Focused Restoration Techniques On Soil Communities In Tallgrass Prairies, Zachary J. Whitacre
Effects Of Traditional And Microbially-Focused Restoration Techniques On Soil Communities In Tallgrass Prairies, Zachary J. Whitacre
Masters Theses
Tallgrass prairies have virtually disappeared in many parts of their former range due to the conversion of this ecosystem to farmland. In more recent years there have been efforts to restore these prairies on reclaimed agricultural land. However, these restored prairies do not resemble their remnant counterparts in many ways, such as in soil microbial community composition and metrics related to carbon storage. In Chapter 1, I show that bacterial communities in a restored prairie and an adjacent remnant prairie in southwest Michigan differ in their immediate and longer-term responses to prescribed fire, a commonly used prairie restoration and maintenance …
College Of Natural Sciences Newsletter, June 2021, College Of Natural Sciences
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.
Structure Of Chimpanzee Gut Microbiomes Across Tropical Africa, Clifton P. Bueno De Mesquita, Lauren M. Nichols, Matthew J. Gebert, Caihong Vanderburgh, Gaëlle Bocksberger, Jack D. Lester, Ammie K. Kalan, Paula Dieguez, Maureen S. Mccarthy, Anthony Agbor, Paula Álvarez Varona, Ayuk Emmanuel Ayimisin, Mattia Bessone, Rebecca Chancellor, Heather Cohen, Charlotte Coupland, Tobias Deschner, Villard Ebot Egbe, Annemarie Goedmakers, Anne-Céline Granjon, Cyril C. Grueter, Josephine Head, R. Adriana Hernandez-Aguilar, Kathryn J. Jeffery, Sorrel Jones, Parag Kadam, Michael Kaiser, Juan Lapuente, Bradley Larson, Sergio Marrocoli, David Morgan, Badru Mugerwa, Felix Mulindahabi, Emily Neil, Protais Niyigaba, Liliana Pacheco, Alex K. Piel, Martha M. Robbins, Aaron S. Rundus, Crickette M. Sanz, Lilah Sciaky, Douglas Sheil, Volker Sommer, Fiona A. Stewart, Els Ton, Joost Van Schijndel, Virginie Vergnes, Erin G. Wessling, Roman M. Wittig, Yisa Ginath Yuh, Kyle Yurkiw, Klaus Zuberbühler, Jan F. Gogarten, Anna Heintz-Buschart, Alexandra N. Muellner-Riehl, Christophe Boesch, Hjalmar S. Kühl, Noah Fierer, Mimi Arandjelovic, Robert R. Dunn
Structure Of Chimpanzee Gut Microbiomes Across Tropical Africa, Clifton P. Bueno De Mesquita, Lauren M. Nichols, Matthew J. Gebert, Caihong Vanderburgh, Gaëlle Bocksberger, Jack D. Lester, Ammie K. Kalan, Paula Dieguez, Maureen S. Mccarthy, Anthony Agbor, Paula Álvarez Varona, Ayuk Emmanuel Ayimisin, Mattia Bessone, Rebecca Chancellor, Heather Cohen, Charlotte Coupland, Tobias Deschner, Villard Ebot Egbe, Annemarie Goedmakers, Anne-Céline Granjon, Cyril C. Grueter, Josephine Head, R. Adriana Hernandez-Aguilar, Kathryn J. Jeffery, Sorrel Jones, Parag Kadam, Michael Kaiser, Juan Lapuente, Bradley Larson, Sergio Marrocoli, David Morgan, Badru Mugerwa, Felix Mulindahabi, Emily Neil, Protais Niyigaba, Liliana Pacheco, Alex K. Piel, Martha M. Robbins, Aaron S. Rundus, Crickette M. Sanz, Lilah Sciaky, Douglas Sheil, Volker Sommer, Fiona A. Stewart, Els Ton, Joost Van Schijndel, Virginie Vergnes, Erin G. Wessling, Roman M. Wittig, Yisa Ginath Yuh, Kyle Yurkiw, Klaus Zuberbühler, Jan F. Gogarten, Anna Heintz-Buschart, Alexandra N. Muellner-Riehl, Christophe Boesch, Hjalmar S. Kühl, Noah Fierer, Mimi Arandjelovic, Robert R. Dunn
Psychology Faculty Publications
Understanding variation in host-associated microbial communities is important given the relevance of microbiomes to host physiology and health. Using 560 fecal samples collected from wild chimpanzees (Pan troglodytes) across their range, we assessed how geography, genetics, climate, vegetation, and diet relate to gut microbial community structure (prokaryotes, eukaryotic parasites) at multiple spatial scales. We observed a high degree of regional specificity in the microbiome composition, which was associated with host genetics, available plant foods, and potentially with cultural differences in tool use, which affect diet. Genetic differences drove community composition at large scales, while vegetation and potentially tool use drove …
Antibiotic Resistance In Mucosal Bacteria From High Arctic Migratory Salmonids, Kristy Moniz, Virginia K. Walker, Vishal Shah
Antibiotic Resistance In Mucosal Bacteria From High Arctic Migratory Salmonids, Kristy Moniz, Virginia K. Walker, Vishal Shah
Biology Faculty Publications
Two related salmonids, Arctic char (Salvelinus alpinus) and lake whitefish (Coregonus clupeaformis) sampled from the high Arctic region of Nunavut, Canada are anadromous fish, migrating annually from the same ice-covered freshwater waterbodies to spend summers in the marine waters of the Arctic Ocean. Microbiota associated with the skin-associated mucus undergo community change coincident with migration, and irrespective of this turnover, antibiotic resistance was detected in mixed bacterial cultures initiated with mucus samples. Although as expected most bacteria were unculturable, however, 5/7 isolates showed susceptibility to a panel of five common antibiotics. The fish were sampled under severe conditions and at …
Ruvb-Like Protein 2 Interacts With The Ns1 Protein Of Influenza A Virus And Affects Apoptosis That Is Counterbalanced By Type I Interferons, Yimeng Wang, Jianhong Zhou, Samuel G. Mackintosh, Yuchun Du
Ruvb-Like Protein 2 Interacts With The Ns1 Protein Of Influenza A Virus And Affects Apoptosis That Is Counterbalanced By Type I Interferons, Yimeng Wang, Jianhong Zhou, Samuel G. Mackintosh, Yuchun Du
Biological Sciences Faculty Publications and Presentations
The NS1 protein of influenza A virus (IAV) plays important roles in viral pathogenesis and host immune response. Through a proteomic approach, we have identified RuvB-like proteins 1 and 2 (RuvBL1 and RuvBL2) as interacting partners of the NS1 protein of IAVs. Infection of human lung A549 cells with A/PR/8/34 (PR8) virus resulted in reductions in the protein levels of RuvBL2 but not RuvBL1. Further studies with RuvBL2 demonstrated that the NS1-RuvBL2 interaction is RNA-independent, and RuvBL2 binds the RNA-binding domain of the NS1. Infection of interferon (IFN)-deficient Vero cells with wild-type or delNS1 PR8 virus reduced RuvBL2 protein levels …
Development Of A Portable Low-Moisture Food Pasteurization Device Using Rf Heating, Eric Jason Ohata
Development Of A Portable Low-Moisture Food Pasteurization Device Using Rf Heating, Eric Jason Ohata
Master's Theses
Bacterial presence in low-moisture foods such as flour, cereals, baby formula, and spices, have become a concern due to sanitizing challenges. The food industry currently focuses on wet food sanitation as opposed to low-moisture foods because of bacteria’s inability to reproduce in low water activity media. Traditionally, food processing RF heating pasteurizes in mass quantities while an equivalent consumer device does not exist the market today. A consumer product would help eliminate food waste by providing an easy way to sanitize food and extend shelf life. The Portable Food Pasteurization (PFP) project is an interdisciplinary project involving the Electrical Engineering, …
Phenotypic And Genotypic Characterization Of Biofilm Producing Clinical Coagulase Negative Staphylococci From Nepal And Their Antibiotic Susceptibility Pattern, Sarita Manandhar, Anjana Singh, Ajit Varma, Shanti Pandey, Neeraj Shrivastava
Phenotypic And Genotypic Characterization Of Biofilm Producing Clinical Coagulase Negative Staphylococci From Nepal And Their Antibiotic Susceptibility Pattern, Sarita Manandhar, Anjana Singh, Ajit Varma, Shanti Pandey, Neeraj Shrivastava
Student Publications
Background
Coagulase-negative staphylococci (CNS) survive as commensals of skin, anterior nares and external canals of human and were regarded as non-infectious pathogens. However, they are emerging as a major cause of nosocomial infectious due to their ability to form biofilms and high resistance to several classes of antibiotics. This study examines the biofilm forming abilities of 214 clinical CNS isolates using phenotypic and genotypic methods, and determines their antibiotic susceptibility patterns.
Methods
A total of 214 clinical isolates collected from different clinical samples were identified as CNS and their antibiotic susceptibility determined by CLSI guidelines. The biofilm forming ability of …
Synthesis And Antimicrobial Activities Of Some New Sulfonyl Phenoxides, Oluwaseyi B Ovonramwen, Bodunde J Owolabi, Abiodun Falodun
Synthesis And Antimicrobial Activities Of Some New Sulfonyl Phenoxides, Oluwaseyi B Ovonramwen, Bodunde J Owolabi, Abiodun Falodun
Tanzania Journal of Science
Four new sulfonyl phenoxides were synthesized through O-sulfonylation reaction of phenolic compounds with 5-chloro-1-ethyl-2-methylimidazole-4-sulfonyl chloride in good yield. FT-IR, 1H-NMR, 13C-NMR, and DEPT 135 NMR were carried out to characterize and the thin layer chromatography (TLC) confirm the purity. Antimicrobial activities of the sulfonyl phenoxides against Gram-positive (methicillin-susceptible Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, and Bacillus subtilis), Gram-negative (Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae), and Candida albicans were carried out using the standard microbiological method. The antimicrobial activities were referenced to ciprofloxacin and itraconazole, antibacterial and antifungal drug respectively. The in vitro antimicrobial studies of 5-chloro-1-ethyl-2-methyl-1H-imidazole-4-sulfonyl(4-chloro-3-methyl)phenoxide and 5-chloro-1-ethyl-2-methyl-1H-imidazole-4-sulfonyl-2-methylphenoxide showed moderate activity …
Psychological Impact Of Novel Coronavirus Covid-19 Across The Globe-A Review, Sadaf Shaheen, Iram Asim, Rida Zainab, Humaira Yasmeen
Psychological Impact Of Novel Coronavirus Covid-19 Across The Globe-A Review, Sadaf Shaheen, Iram Asim, Rida Zainab, Humaira Yasmeen
Journal of Bioresource Management
The recent outbreaks of novel coronavirus disease have unprecedent impact on mental health of patients, front-line healthcare workers and local population. However, the impact is not fully documented. This review explores stress-driven factors, stress-vulnerable groups and stress management interventions. Repetitive exposure to mass media and inappropriate health protective measures has heightened stress responses. Fear of not getting recovered from COVID-19 and disaffection has profound impact of infected individuals and their families. They may experience fear, anxiety, anger, sleep deprives and anorexia which may weakens their immune system thus making them vulnerable to COVID-19. The COVID-19 pandemic has underscored potential gaps …
Investigating Distribution Of Legionella Pneumophila In Urban And Suburban Watersheds, Azlan Maqbool
Investigating Distribution Of Legionella Pneumophila In Urban And Suburban Watersheds, Azlan Maqbool
Student Theses
The presence of Legionella pneumophila was assessed using a cultivation-based approach in New York City waterways, a freshwater portion of the lower Hudson River Estuary near Kingston NY, and in urban and suburban street water. Legionella pneumophila was detected in 51% of brackish New York City Estuary samples, most with concentrations near minimum detection (=>1 organism/ mL). In contrast, it was detected in 22% of suburban freshwater Hudson River Estuary samples. Levels of the bacterium were found to be higher during wet weather compared to dry weather in the highly dense urban setting, but not in the less dense …
Mucormycosis (Black Fungus) Maiming Covid Patients: Scientometrics Analysis Through Prism Of Biblioshiny, Sivankalai S, K Sivasekaran
Mucormycosis (Black Fungus) Maiming Covid Patients: Scientometrics Analysis Through Prism Of Biblioshiny, Sivankalai S, K Sivasekaran
Library Philosophy and Practice (e-journal)
This study analyses the global level outlook of research publications on Mucormycosis output between the period of 1923 to 2021 (May) on different limitations including contribution of authors, communication channel, publications on Institutions, countries, Journals, cited articles and mode of languages. 4451 data was downloaded from core collection of Web of Science bibliographic database using the search term ‘Mucormycosis’ and limited the publications 1900 to 2021, first publication was started in 1923 onwards. 3798 institutions and 8562 different disciplines contributed and 2808 records are in Articles. 4451 records published by 17320 authors and 23552 collaborated authors, documents per author are …
Assessment Of Endogenous Biomass Decay As A Source Of Precursors For Microbially-Mediated Toluene And P-Cresol Production, Samuel J. Reynolds
Assessment Of Endogenous Biomass Decay As A Source Of Precursors For Microbially-Mediated Toluene And P-Cresol Production, Samuel J. Reynolds
LSU Master's Theses
The research reported in this thesis was conducted to investigate whether protein hydrolysis associated with endogenous decay of biomass produced following the addition of a readily fermentable substrate is a potential source of precursors that can ultimately be transformed to toluene and p-cresol in environments undergoing enhanced bioremediation.
A packed column intended to represent a laboratory-scale section of an aquifer was seeded with groundwater and then supplied with molasses-amended groundwater for a two-day interval. The injected molasses concentration and surface loading rate were selected to be representative of conditions in the vicinity of injection wells at a Superfund Site …
Analysis Of Symptom Expressions And Transmission Rates Caused By The Plant Pathogen Phytophthora Ramorum On Native Chaparral Plants From The Genus Arctostaphylos, Bharati Gaonker
Natural Sciences and Mathematics | Biological Sciences Master's Theses
Phytophthora ramorum is the causal agent of Sudden Oak death (SOD), ramorum dieback and ramorum leaf blight which affect both forest environments and nurseries. This oomycete pathogen has had a huge economic impact on the nursery and lumber industry. Forests in California have experienced substantial mortality of oaks affecting the forest dynamics and diversity. Our research investigates four native species and two ornamental cultivars of plants, which belong to the genus Arctostaphylos (manzanita) and are considered to be new hosts for P. ramorum in the chaparral ecosystem of California. Symptom expression and transmission rates were analyzed on Arctostaphylos glauca, …
Increased Antimicrobial And Multidrug Resistance Downstream Of Wastewater Treatment Plants In An Urban Watershed, Maitreyee Mukherjee, Edward Laird, Terry J. Gentry, John P. Brooks, Raghupathy Karthikeyan
Increased Antimicrobial And Multidrug Resistance Downstream Of Wastewater Treatment Plants In An Urban Watershed, Maitreyee Mukherjee, Edward Laird, Terry J. Gentry, John P. Brooks, Raghupathy Karthikeyan
Faculty Publications
Development and spread of antimicrobial resistance (AMR) and multidrug resistance (MDR) through propagation of antibiotic resistance genes (ARG) in various environments is a global emerging public health concern. The role of wastewater treatment plants (WWTPs) as hot spots for the dissemination of AMR and MDR has been widely pointed out by the scientific community. In this study, we collected surface water samples from sites upstream and downstream of two WWTP discharge points in an urban watershed in the Bryan-College Station (BCS), Texas area, over a period of nine months. E. coli isolates were tested for resistance to ampicillin, tetracycline, sulfamethoxazole, …
Evidence For Perchlorate-Coupled Molybdenum And Nickel Carbon Monoxide Dehydrogenase Co Oxidation And Characterization Of Novel Perchlorate-Reducing Haloarchaea, Marisa Russell Myers
Evidence For Perchlorate-Coupled Molybdenum And Nickel Carbon Monoxide Dehydrogenase Co Oxidation And Characterization Of Novel Perchlorate-Reducing Haloarchaea, Marisa Russell Myers
LSU Doctoral Dissertations
Carbon monoxide (CO) has been exploited as a microbial energy source for much of life’s evolutionary history. A phylogenetically diverse array of microorganisms can oxidize CO using two distinct CO dehydrogenases, molybdenum-dependent (Mo-CODH) and nickel-dependent (Ni-CODH). Aerobes and facultative organisms contain Mo-CODHs which allow them to utilize oxygen as an electron acceptor in addition to alternatives such as nitrate and sulfate. Obligate anaerobic organisms contain Ni-CODHs, which oxidize CO at elevated concentrations, but cannot utilize oxygen. In systems where organic matter deposits are limited or absent, atmospheric trace gases such as CO are thought to assist in supporting the growth …
Manipulation Of The Microbiome In The Gut Of The Fruit Fly To Alleviate Cadmium Bioaccumulation, Natasya Tamba
Manipulation Of The Microbiome In The Gut Of The Fruit Fly To Alleviate Cadmium Bioaccumulation, Natasya Tamba
Symposium of Student Scholars
Cadmium (Cd) poisoning contributes to severe bodily detriments characterized by kidney failure, osteomalacia, and osteoporosis, otherwise known as Itai-Itai disease. The ingestion of cadmium contaminated foods primarily causes these conditions. There are no treatments to remove cadmium once absorbed, resulting in bioaccumulation. In this study, we are developing a method to manipulate the community of microorganisms (microbiome) living within the gastrointestinal (GI) tract of the fruit fly (Drosophila melanogaster), intending to use microorganisms to reduce the availability of ingested cadmium.
The biodiversity of microorganisms within the GI tract is responsible for metabolizing substances that the body cannot perform. …
Detecting Bacterial Species From Ancient Human Skeletal Samples, Ariel Owens, Daisy Mcgrath, Tsai-Tien Tseng
Detecting Bacterial Species From Ancient Human Skeletal Samples, Ariel Owens, Daisy Mcgrath, Tsai-Tien Tseng
Symposium of Student Scholars
This paleopathological study aims to identify Mycobacterium tuberculosis complex (MTBC), Mycobacterium avium complex (MAC) and other Mycobacterium species in silico from skeletal samples that belonged to 28 Polish individuals in the Neolithic period under PRJNA422903 from the Sequence Read Archive (SRA). After next-generation sequencing (NGS), bioinformatics methods are heavily relied upon for identification of pathogens from complex samples. We implemented a bioinformatics pipeline, with custom-built databases, utilizing the following software tools: Trim Galore! and Kraken2. After adapter trimming, Kraken2 was used for taxonomic classifications. We have found that Mycobacterium is present in all 28 individuals. The average percentage of MAC …