Research output per year
Research output per year
- 1 - 50 out of 129 results
Search results
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2024
Escherichia coli isolates from vegetable farms in Addis Ababa, Ethiopia: Antimicrobial susceptibility profile and associated resistance genetic markers
Hailu, W., Alemayehu, H., Hailu, L., Medhin, G., Rajashekara, G., Gebreyes, W. A. & Eguale, T., Jun 2024, In: Food Science and Nutrition. 12, 6, p. 4122-4132 11 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Identification of novel small molecule inhibitors of twin arginine translocation (Tat) pathway and their effect on the control of Campylobacter jejuni in chickens
Deblais, L., Drozd, M., Kumar, A., Antwi, J., Fuchs, J., Khupse, R., Helmy, Y. A. & Rajashekara, G., 2024, In: Frontiers in Microbiology. 15, 1342573.Research output: Contribution to journal › Article › peer-review
Open Access -
Impact of Irrigation Source on the Dissemination and Persistence of Coliforms and Foodborne Pathogens in Fresh Tomato High Tunnel-dripline System from Small Specialty Crop Farms
Deblais, L., Kauffman, M. & Rajashekara, G., Dec 2024, In: Journal of Food Protection. 87, 12, 100382.Research output: Contribution to journal › Article › peer-review
Open Access -
In vitro, in planta, and comparative genomic analyses of Pseudomonas syringae pv. syringae strains of pepper (Capsicum annuum var. annuum)
Ranjit, S., Deblais, L., Poelstra, J. W., Bhandari, M., Rotondo, F., Scaria, J., Miller, S. A. & Rajashekara, G., Jun 2024, In: Microbiology Spectrum. 12, 6Research output: Contribution to journal › Article › peer-review
Open Access -
Triazole resistance in Aspergillus fumigatus isolated from a tomato production environment exposed to propiconazole
Jimenez Madrid, A. M., Paul, R. A., Rotondo, F., Deblais, L., Rajashekara, G., Miller, S. A. & Lewis Ivey, M. L., Apr 2024, In: Applied and environmental microbiology. 90, 4Research output: Contribution to journal › Article › peer-review
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2023
A longitudinal study to examine the influence of farming practices and environmental factors on pathogen prevalence using structural equation modeling
Ferguson, M., Hsu, C. K., Grim, C., Kauffman, M., Jarvis, K., Pettengill, J. B., Babu, U. S., Harrison, L. M., Li, B., Hayford, A., Balan, K. V., Freeman, J. P., Rajashekara, G., Lipp, E. K., Rozier, R. S., Zimeri, A. M. & Burall, L. S., 2023, In: Frontiers in Microbiology. 14, 1141043.Research output: Contribution to journal › Article › peer-review
Open Access -
Anti-rotavirus Properties and Mechanisms of Selected Gram-Positive and Gram-Negative Probiotics on Polarized Human Colonic (HT-29) Cells
Kumar, A., Helmy, Y. A., Fritts, Z., Vlasova, A., Saif, L. J. & Rajashekara, G., Feb 2023, In: Probiotics and Antimicrobial Proteins. 15, 1, p. 107-128 22 p.Research output: Contribution to journal › Article › peer-review
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Discovery of Novel Small Molecule Growth Inhibitors to Manage Pseudomonas Leaf Spot Disease on Peppers (Capsicum sp.)
Ranjit, S., Deblais, L., Rotondo, F., Shannon, B., Johnson, R., Miller, S. A. & Rajashekara, G., Nov 2023, In: Plant disease. 107, 11, p. 3560-3574 15 p.Research output: Contribution to journal › Article › peer-review
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Efficacy of quorum sensing and growth inhibitors alone and in combination against avian pathogenic Escherichia coli infection in chickens
Helmy, Y. A., Kathayat, D., Closs, G., Galgozy, K., Fuchs, J. R. & Rajashekara, G., Apr 2023, In: Poultry science. 102, 4, 102543.Research output: Contribution to journal › Article › peer-review
Open Access -
Genomic Diversity, Antimicrobial Resistance, Plasmidome, and Virulence Profiles of Salmonella Isolated from Small Specialty Crop Farms Revealed by Whole-Genome Sequencing
Bhandari, M., Poelstra, J. W., Kauffman, M., Varghese, B., Helmy, Y. A., Scaria, J. & Rajashekara, G., Nov 2023, In: Antibiotics. 12, 11, 1637.Research output: Contribution to journal › Article › peer-review
Open Access -
Prevalence and Load of the Campylobacter Genus in Infants and Associated Household Contacts in Rural Eastern Ethiopia: a Longitudinal Study from the Campylobacter Genomics and Environmental Enteric Dysfunction (CAGED) Project
Deblais, L., Ojeda, A., Brhane, M., Mummed, B., Hassen, K. A., Ahmedo, B. U., Weldesenbet, Y. D., Amin, J. K., Ahmed, I. A., Usmane, I. A., Yusuf, E. A., Seran, A. J., Abrahim, F. I., Game, H. T., Mummed, B. A., Usmail, M. M., Umer, K. A., Dawid, M. M., Gebreyes, W. & French, N. & 11 others, , Jul 2023, In: Applied and environmental microbiology. 89, 7Research output: Contribution to journal › Article › peer-review
Open Access -
Role of Stress-Induced Proteins RpoS and YicC in the Persistence of Salmonella enterica subsp. enterica Serotype Typhimurium in Tomato Plants
Deblais, L., Ranjit, S., Vrisman, C., Antony, L., Scaria, J., Sally, A. M. & Rajashekara, G., Mar 2023, In: Molecular Plant-Microbe Interactions. 36, 2, p. 109-118 10 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Whole genome characterization of thermophilic Campylobacter species isolated from dairy manure in small specialty crop farms of Northeast Ohio
Deblais, L., Jang, H., Kauffman, M., Gangiredla, J., Sawyer, M., Basa, S., Poelstra, J. W., Babu, U. S., Harrison, L. M., Hiett, K. L., Balan, K. V. & Rajashekara, G., 2023, In: Frontiers in Microbiology. 14, 1074548.Research output: Contribution to journal › Article › peer-review
Open Access -
Women’s empowerment and child nutrition in a context of shifting livelihoods in Eastern Oromia, Ethiopia
Mechlowitz, K., Singh, N., Li, X., Chen, D., Yang, Y., Rabil, A., Cheraso, A. J., Ahmed, I. A., Amin, J. K., Gebreyes, W. A., Hassen, J. Y., Ibrahim, A. M., Manary, M. J., Rajashekara, G., Roba, K. T., Usmane, I. A., Havelaar, A. H. & McKune, S. L., 2023, In: Frontiers in Nutrition. 10, 1048532.Research output: Contribution to journal › Article › peer-review
Open Access -
2022
Effect of Probiotic E. coli Nissle 1917 Supplementation on the Growth Performance, Immune Responses, Intestinal Morphology, and Gut Microbes of Campylobacter jejuni Infected Chickens
Helmy, Y. A., Closs, G., Jung, K., Kathayat, D., Vlasova, A. & Rajashekara, G., Oct 2022, In: Infection and immunity. 90, 10Research output: Contribution to journal › Article › peer-review
Open Access -
Escherichia coli Nissle 1917 Enhances Efficacy of Oral Attenuated Human Rotavirus Vaccine in a Gnotobiotic Piglet Model
Michael, H., Miyazaki, A., Langel, S. N., Amimo, J. O., Kick, M. K., Chepngeno, J., Paim, F. C., Fischer, D. D., Rajashekara, G., Saif, L. J. & Vlasova, A. N., Jan 2022, In: Vaccines. 10, 1, 83.Research output: Contribution to journal › Article › peer-review
Open Access -
Evaluation of Novel Quorum Sensing Inhibitors Targeting Auto-Inducer 2 (AI-2) for the Control of Avian Pathogenic Escherichia coli Infections in Chickens
Helmy, Y. A., Kathayat, D., Deblais, L., Srivastava, V., Closs, G., Tokarski, R. J., Ayinde, O., Fuchs, J. R. & Rajashekara, G., Jun 2022, In: Microbiology Spectrum. 10, 3Research output: Contribution to journal › Article › peer-review
Open Access -
Gut Microbiota of Obese Children Influences Inflammatory Mucosal Immune Pathways in the Respiratory Tract to Influenza Virus Infection: Optimization of an Ideal Duration of Microbial Colonization in a Gnotobiotic Pig Model
Renu, S., Deblais, L., Patil, V., Schrock, J., Kathayat, D., Srivastava, V., Feliciano-Ruiz, N., Han, Y., Ramesh, A., Lakshmanappa, Y. S., Ghimire, S., Dhakal, S., Rajashekara, G. & Renukaradhya, G. J., Jun 2022, In: Microbiology Spectrum. 10, 3Research output: Contribution to journal › Article › peer-review
Open Access -
Identification and Subtyping of Salmonella Isolates Using Matrix-Assisted Laser Desorption–Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF)
Persad, A. K., Fahmy, H. A., Anderson, N., Cui, J., Topalcengiz, Z., Jeamsripong, S., Spanninger, P. M., Buchanan, R. L., Kniel, K. E., Jay-Russell, M. T., Danyluk, M. D., Rajashekara, G. & Lejeune, J. T., Apr 2022, In: Microorganisms. 10, 4, 688.Research output: Contribution to journal › Article › peer-review
Open Access -
In Vitro and In Vivo Evaluation of Lacticaseibacillus rhamnosus GG and Bifidobacterium lactis Bb12 Against Avian Pathogenic Escherichia coli and Identification of Novel Probiotic-Derived Bioactive Peptides
Kathayat, D., Closs, G., Helmy, Y. A., Deblais, L., Srivastava, V. & Rajashekara, G., Dec 2022, In: Probiotics and Antimicrobial Proteins. 14, 6, p. 1012-1028 17 p.Research output: Contribution to journal › Article › peer-review
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Shiga toxin (stx) encoding genes in sheep and goats reared in Trinidad and Tobago
Persad, A. K., Rajashekara, G. & LeJeune, J. T., Nov 2022, In: PloS one. 17, 11 November, e0277564.Research output: Contribution to journal › Article › peer-review
Open Access -
The Combined Escherichia coli Nissle 1917 and Tryptophan Treatment Modulates Immune and Metabolome Responses to Human Rotavirus Infection in a Human Infant Fecal Microbiota-Transplanted Malnourished Gnotobiotic Pig Model
Michael, H., Srivastava, V., Deblais, L., Amimo, J. O., Chepngeno, J., Saif, L. J., Rajashekara, G. & Vlasova, A. N., Sep 2022, In: mSphere. 7, 5Research output: Contribution to journal › Article › peer-review
Open Access -
Unravelling the reservoirs for colonisation of infants with Campylobacter spp. in rural Ethiopia: protocol for a longitudinal study during a global pandemic and political tensions
Havelaar, A. H., Brhane, M., Ahmed, I. A., Kedir, J., Chen, D., Deblais, L., French, N., Gebreyes, W. A., Hassen, J. Y., Li, X., Manary, M. J., Mekuria, Z., Ibrahim, A. M., Mummed, B., Ojeda, A., Rajashekara, G., Roba, K. T., Saleem, C., Singh, N. & Usmane, I. A. & 3 others, , Oct 5 2022, In: BMJ Open. 12, 10, e061311.Research output: Contribution to journal › Article › peer-review
Open Access -
2021
A cross-sectional study of the nasal and fecal microbiota of sows from different health status within six commercial swine farms
Arruda, A. G., Deblais, L., Hale, V. L., Madden, C., Pairis-Garcia, M., Srivastava, V., Kathayat, D., Kumar, A. & Rajashekara, G., Sep 2021, In: PeerJ. 9, e12120.Research output: Contribution to journal › Article › peer-review
Open Access -
Bioluminescent Xanthomonas hortorum pv. gardneri as a Tool to Quantify Bacteria in Planta, Screen Germplasm, and Identify Infection Routes on Leaf Surfaces
Bernal, E., Deblais, L., Rajashekara, G. & Francis, D. M., Jun 15 2021, In: Frontiers in Plant Science. 12, 667351.Research output: Contribution to journal › Article › peer-review
Open Access -
Campylobacter Colonization, Environmental Enteric Dysfunction, Stunting, and Associated Risk Factors Among Young Children in Rural Ethiopia: A Cross-Sectional Study From the Campylobacter Genomics and Environmental Enteric Dysfunction (CAGED) Project
Chen, D., McKune, S. L., Singh, N., Yousuf Hassen, J., Gebreyes, W., Manary, M. J., Bardosh, K., Yang, Y., Diaz, N., Mohammed, A., Terefe, Y., Roba, K. T., Ketema, M., Ameha, N., Assefa, N., Rajashekara, G., Deblais, L., Ghanem, M., Yimer, G. & Havelaar, A. H., Jan 21 2021, In: Frontiers in Public Health. 8, 615793.Research output: Contribution to journal › Article › peer-review
Open Access -
Compound prioritization through meta-analysis enhances the discovery of antimicrobial hits against bacterial pathogens
Deblais, L. & Rajashekara, G., Sep 2021, In: Antibiotics. 10, 9, 1065.Research output: Contribution to journal › Article › peer-review
Open Access -
Escherichia coli Nissle 1917 administered as a dextranomar microsphere biofilm enhances immune responses against human rotavirus in a neonatal malnourished pig model colonized with human infant fecal microbiota
Michael, H., Paim, F. C., Miyazaki, A., Langel, S. N., Fischer, D. D., Chepngeno, J., Goodman, S. D., Rajashekara, G., Saif, L. J. & Vlasova, A. N., Feb 2021, In: PloS one. 16, 2 February, e0246193.Research output: Contribution to journal › Article › peer-review
Open Access -
Escherichia coli Nissle 1917 Enhances Innate and Adaptive Immune Responses in a Ciprofloxacin-Treated Defined-Microbiota Piglet Model of Human Rotavirus Infection
Michael, H., Paim, F. C., Langel, S. N., Miyazaki, A., Fischer, D. D., Chepngeno, J., Amimo, J., Deblais, L., Rajashekara, G., Saif, L. J. & Vlasova, A. N., Mar 2021, In: mSphere. 6, 2, p. 1-16 16 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Immuno-modulatory effect of probiotic E. coli Nissle 1917 in polarized human colonic cells against Campylobacter jejuni infection
Helmy, Y. A., Kassem, I. I. & Rajashekara, G., 2021, In: Gut Microbes. 13, 1, p. 1-16 16 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Impact of Plant Pathogen Infection on Salmonella enterica subsp. enterica Serotype Typhimurium Persistence in Tomato Plants
DEBLAIS, L., MILLER, S. A. & Rajashekara, G., Apr 2021, In: Journal of Food Protection. 84, 4, p. 563-571 9 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Novel small molecule growth inhibitor affecting bacterial outer membrane reduces extraintestinal pathogenic escherichia coli (ExPEC) infection in avian model
Kathayat, D., Helmy, Y. A., Deblais, L., Srivastava, V., Closs, G., Khupse, R. & Rajashekara, G., Oct 2021, In: Microbiology Spectrum. 9, 2, e00006-21.Research output: Contribution to journal › Article › peer-review
Open Access -
Novel small molecule growth inhibitors of xanthomonas spp. causing bacterial spot of tomato
Srivastava, V., Deblais, L., Kathayat, D., Rotondo, F., Helmy, Y. A., Miller, S. A. & Rajashekara, G., Jun 2021, In: Phytopathology. 111, 6, p. 940-953 14 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Peptides Affecting the Outer Membrane Lipid Asymmetry System (MlaA-OmpC/F) Reduce Avian Pathogenic Escherichia coli (APEC) Colonization in Chickens
Kathayat, D., Closs, G., Helmy, Y. A., Lokesh, D., Ranjit, S. & Rajashekara, G., Aug 2021, In: Applied and environmental microbiology. 87, 17, p. 1-22 22 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Prevalence and Antimicrobial Resistance Profiles of Foodborne Pathogens Isolated from Dairy Cattle and Poultry Manure Amended Farms in Northeastern Ohio, the United States
Hailu, W., Helmy, Y. A., Carney-Knisely, G., Kauffman, M., Fraga, D. & Rajashekara, G., Dec 2021, In: Antibiotics. 10, 12, 1450.Research output: Contribution to journal › Article › peer-review
Open Access -
2020
Co-occurrence of Campylobacter Species in Children From Eastern Ethiopia, and Their Association With Environmental Enteric Dysfunction, Diarrhea, and Host Microbiome
Terefe, Y., Deblais, L., Ghanem, M., Helmy, Y. A., Mummed, B., Chen, D., Singh, N., Ahyong, V., Kalantar, K., Yimer, G., Yousuf Hassen, J., Mohammed, A., McKune, S. L., Manary, M. J., Ordiz, M. I., Gebreyes, W., Havelaar, A. H. & Rajashekara, G., Apr 15 2020, In: Frontiers in Public Health. 8, 99.Research output: Contribution to journal › Article › peer-review
Open Access -
Discovery and characterization of low-molecular weight inhibitors of Erwinia tracheiphila
Vrisman, C. M., Deblais, L., Helmy, Y. A., Johnson, R., Rajashekara, G. & Miller, S. A., May 2020, In: Phytopathology. 110, 5, p. 989-998 10 p.Research output: Contribution to journal › Article › peer-review
Open Access -
High-throughput screening reveals small molecule modulators inhibitory to Acidovorax citrulli
Lu, Y., Deblais, L., Rajashekara, G., Miller, S. A., Helmy, Y. A., Zhang, H., Wu, P., Qiu, Y. & Xu, X., Jun 1 2020, In: Plant Pathology. 69, 5, p. 818-826 9 p.Research output: Contribution to journal › Article › peer-review
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Identification and characterization of novel small molecule inhibitors to control Mycoplasma gallisepticum infection in chickens
Helmy, Y. A., Kathayat, D., Ghanem, M., Jung, K., Closs, G., Deblais, L., Srivastava, V., El-Gazzar, M. & Rajashekara, G., Aug 2020, In: Veterinary Microbiology. 247, 108799.Research output: Contribution to journal › Article › peer-review
Open Access -
Malnutrition Decreases Antibody Secreting Cell Numbers Induced by an Oral Attenuated Human Rotavirus Vaccine in a Human Infant Fecal Microbiota Transplanted Gnotobiotic Pig Model
Michael, H., Langel, S. N., Miyazaki, A., Paim, F. C., Chepngeno, J., Alhamo, M. A., Fischer, D. D., Srivastava, V., Kathayat, D., Deblais, L., Rajashekara, G., Saif, L. J. & Vlasova, A. N., Feb 14 2020, In: Frontiers in immunology. 11, 196.Research output: Contribution to journal › Article › peer-review
Open Access -
Reduced rotavirus vaccine efficacy in protein malnourished human-faecal-microbiota-transplanted gnotobiotic pig model is in part attributed to the gut microbiota
Srivastava, V., Deblais, L., Huang, H. C., Miyazaki, A., Kandasamy, S., Langel, S. N., Paim, F. C., Chepngeno, J., Kathayat, D., Vlasova, A. N., Saif, L. J. & Rajashekara, G., 2020, In: Beneficial Microbes. 11, 8, p. 733-751 19 p.Research output: Contribution to journal › Article › peer-review
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Small molecule adjuvants potentiate colistin activity and attenuate resistance development in escherichia coli by affecting pmrab system
Kathayat, D., Antony, L., Deblais, L., Helmy, Y. A., Scaria, J. & Rajashekara, G., 2020, In: Infection and Drug Resistance. 13, p. 2205-2222 18 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2019
Imidazole and methoxybenzylamine growth inhibitors reduce salmonella persistence in tomato plant tissues
Deblais, L., Vrisman, C., Kathayat, D., Helmy, Y. A., Miller, S. A. & Rajashekara, G., Jun 2019, In: Journal of Food Protection. 82, 6, p. 997-1006 10 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Novel narrow spectrum benzyl thiophene sulfonamide derivatives to control Campylobacter
Deblais, L., Helmy, Y. A., Kumar, A., Antwi, J., Kathayat, D., Acuna, U. M., Huang, H. C., de Blanco, E. C., Fuchs, J. R. & Rajashekara, G., Jul 1 2019, In: Journal of Antibiotics. 72, 7, p. 555-565 11 p.Research output: Contribution to journal › Article › peer-review
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Specific environmental temperature and relative humidity conditions and grafting affect the persistence and dissemination of Salmonella enterica subsp. enterica serotype Typhimurium in tomato plant tissues
Deblais, L., Helmy, Y. A., Testen, A., Vrisman, C., Madrid, A. M. J., Kathayat, D., Miller, S. A. & Rajashekara, G., Jun 1 2019, In: Applied and environmental microbiology. 85, 11, e00403-19.Research output: Contribution to journal › Article › peer-review
Open Access -
2018
Comparative genomic studies of salmonella heidelberg isolated from chicken- and Turkey-associated farm environmental samples
Deblais, L., Lorentz, B., Scaria, J., Nagaraja, K. V., Nisar, M., Lauer, D., Voss, S. & Rajashekara, G., Aug 10 2018, In: Frontiers in Microbiology. 9, AUG, 1841.Research output: Contribution to journal › Article › peer-review
Open Access -
Draft genome sequences of salmonella enterica subsp. Enterica serotype heidelberg from chicken and turkey farm environments
Deblais, L., Scaria, J. & Rajashekara, G., Nov 21 2018, In: Microbiology Resource Announcements. 7, 20, e01204-18.Research output: Contribution to journal › Article › peer-review
Open Access -
E. coli Nissle microencapsulation in alginate-chitosan nanoparticles and its effect on Campylobacter jejuni in vitro
Mawad, A., Helmy, Y. A., Shalkami, A. G., Kathayat, D. & Rajashekara, G., Dec 1 2018, In: Applied Microbiology and Biotechnology. 102, 24, p. 10675-10690 16 p.Research output: Contribution to journal › Article › peer-review
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Effect of antibiotic, probiotic, and human rotavirus infection on colonisation dynamics of defined commensal microbiota in a gnotobiotic pig model
Huang, H. C., Vlasova, A. N., Kumar, A., Kandasamy, S., Fischer, D. D., Deblais, L., Paim, F. C., Langel, S. N., Alhamo, M. A., Rauf, A., Shao, L., Saif, L. J. & Rajashekara, G., 2018, In: Beneficial Microbes. 9, 1, p. 71-86 16 p.Research output: Contribution to journal › Article › peer-review
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Impact of nutrition and rotavirus infection on the infant gut microbiota in a humanized pig model
Kumar, A., Vlasova, A. N., Deblais, L., Huang, H. C., Wijeratne, A., Kandasamy, S., Fischer, D. D., Langel, S. N., Paim, F. C., Alhamo, M. A., Shao, L., Saif, L. J. & Rajashekara, G., Jun 22 2018, In: BMC Gastroenterology. 18, 1, 93.Research output: Contribution to journal › Article › peer-review
Open Access