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Showing 1 to 20 of 39 for “"Pantoea"”.
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Identification and Characterization of Antibiotic Biosynthetic Gene Clusters in Pantoea
… few genera. One underexplored bacterial genus is Pantoea, which produces a variety of compounds with antimicrobial activity. Chapter one describes a general overview of secondary metabolites, antibiotic resistance, strategies to overcome resistance, and Pantoea. Chapter two describes the …
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Evaluation of Antibiotic Production and its Regulation in Pantoea agglomerans Tx10
… products is the enterobacterial genus Pantoea. Although antibiotic discovery efforts in Pantoea have focused largely on agricultural applications, Pantoea remains an unexplored reservoir of antibiotics that may have utilization in a clinical setting. Using an agar overlay assay, Pantoea …
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Phylogenetic Analysis and Characterization of Plant, Environmental, and Clinical Strains of Pantoea
… species are found to cause harm to humans. Pantoea is recognized as a multihost pathogen, colonizing various hosts including plants, insects, and humans; however it is unknown how these strains are related, and the extent of their specific host ranges. Multilocus sequence analysis (MLSA) on …
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Pantoea and Xanthomonas species associated with blight and die-back of Eucalyptus
… plants and trees. Since both Xanthomonas and Pantoea species are becoming increasing important as emerging bacterial pathogens, their rapid and accurate identification is crucially important. Little is known about bacterial pathogens on forestry trees since the most prominent diseases of these …
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Investigation of the quorum-sensing regulon in the corn pathogen Pantoea stewartii
Pantoea stewartii subsp. stewartii is a bacterium that causes Stewart’s wilt disease in corn plants. The bacteria are transmitted to the plants via an insect vector, the corn flea beetle Chaetocnema pulicaria. Once in the plant, the bacteria migrate to the xylem and grow to high cell densities, …
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Development of Methods for Structural Characterization of Pantoea stewartii Quorum-Sensing Regulator EsaR
… It controls virulence in the corn pathogen Pantoea stewartii ssp. stewartii. Solubility issues have previously limited structural studies of LuxR homologues as the proteins could not be purified without the AHL ligand. A soluble recombinant EsaR protein, HMGE, is biologically active and can …
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Structure/Function Analysis of the Quorum-sensing Regulator EsaR from the Plant Pathogen Pantoea stewartii
Pantoea stewartii subsp. stewarti is the causative agent of Stewart's wilt disease in maize. Disease symptoms develop after the bacteria grow to high cell densities in the plant xylem and secrete an abundance of exopolysaccharide (EPS). EPS production is regulated by quorum sensing. Two regulatory …
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Analysis of the Quorum Sensing Regulons of Vibrio parahaemolyticus BB22 and Pantoea stewartii subspecies stewartii
… dissertation work, Vibrio parahaemolyticus and Pantoea stewartii subsp. stewartii. V. parahaemolyticus causes acute gastroenteritis in people who eat contaminated raw or undercooked shellfish. It is found in warmer marine waters and in rare cases, causes systemic infections when bacteria enter …
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Investigation of Pantoea stewartii Quorum-Sensing Controlled Regulators and Genes Important for Infection of Corn
… to detrimental. This dissertation focuses on Pantoea stewartii subspecies stewartii (P. stewartii), an endosymbiont in the corn flea beetle gut that causes Stewart's wilt disease in corn. Gaining insights into the interactions occurring between this bacterial pathogen and its plant host may …
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Exploring the Evolution of Pathogenicity in a Mult-host Bacterial Pathogen Using Comparative Genomics
Pantoea is a Gram-negative bacterial genus within the recently created Erwiniaceae. Pantoea members are found in association with a wide range of hosts, and some species have been reported as the causative agent of human infections. Despite this, little research has focused on the human …
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The in planta role of the global regulator Lrp in the bacterial phytopathogen Pantoea stewartii subsp. stewartii
Pantoea stewartii subsp. stewartii is a bacterial phytopathogen that causes the disease Stewart's wilt in corn. The insect vector Chaetocnema pulicaria, the corn flea beetle, transmits P. stewartii into corn plants through wounds in the leaves. The bacteria can then move to the xylem of the plant …
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Identifying Pantoea Genetic Factors Involved in Host Association by Integrating Comparative Genomics with a Dictyostelium discoideum Grazing Resistance Model
Pantoea is a genus of Gram-negative bacteria within the Enterobacterales. Much of what is known about Pantoea has been determined through studies focused on its phytopathogenicity and epiphytic associations. Limited research has been conducted on Pantoea to characterize its capacity for opportunism …
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In planta studies of the corn pathogen Pantoea stewartii subsp. stewartii and applications of a corn-based industrial byproduct
… causal agent of Stewart's wilt disease in corn, Pantoea stewartii subsp. stewartii, is a bacterial phytopathogen that is vectored into the plant by the corn flea beetle, Chaetocnema pulicaria. After entering the apoplast of the leaf, the bacteria cause water soaking symptoms before traveling to …
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Evaluation of bactericides and plant defense inducers in the presence and absence of onion pathogens Pantoea spp. and Burkholderia gladioli in Colorado
… bacterial inoculation was prepared using Pantoea spp. and Burkholderia gladioli isolates. The pesticide products included the following types: traditional copper bactericides (Kocide and ManKocide), sanitizers (Oxidate 5.0), biological microorganisms (BlightBan A506), and plant defense …
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Role of the Leucine-responsive Regulatory Protein during growth of the bacterial corn pathogen Pantoea stewartii subspecies stewartii in the xylem environment
… disease Stewart's Wilt reduces crop yield. Pantoea stewartii subsp. stewartii (Pss) is transmitted into corn via the corn flea beetle insect vector, Chaetocnema pulicaria. As the beetle feeds on the corn plant leaves, Pss deposited in beetle feces enter the leaf through lesions. The early …
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Phytochemical Investigation and Bioactivity Assessment of Medicinal Plant from Northern Nigeria
… the endophyte Enterobacter cloacae. In addition, Pantoea spp was also isolated from the bark of B. Dalzielii. The sequences of both E. cloacae and Pantoea spp are deposited in the GenBank nucleotide database under the accession number MH764584 and MH764583, respectively. Similarly, activity-guided …
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Genomic and Molecular Characterization of Microbial Ice Nucleation
… family tree of a group of bacteria called Pantoea, (2) to study how changes in a specific gene cluster in a bacterium called Lysinibacillus parviboronicapiens affect its ability to nucleate ice, and (3) to identify genes in fungi that may also be responsible for ice nucleation. To do this, …
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Identification, Characterization, and Use of Precipitation-borne and Plant-associated Bacteria
… Methylobacterium, Pseudomonas, Acidiphilium, and Pantoea as members of the core rain microbiome in Blacksburg, VA. Further, I used rainwater as a bacterial inoculum to treat tomato plants. I showed that rain-borne bacteria of the genera Chryseobacterium, Enterobacter, Pantoea, Paenibacillus, …
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Taxonomy and comparative genomics of bacterial species associated with onion bulb rot focusing on Rahnella species
… Erwinia, Serratia, Enterobacter species, the Pantoea complex, and Klebsiella. The management strategies currently implemented to help combat onion diseases, both pre- and post-harvest, were also reviewed. To understand the underlying issues related to bacterial diseases in onions, we analysed …
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Determining role of bacteria associated with bacterial spot on pumpkin and squash fruit in the North Central Region of the United States
… Erwinia, Exiguobacterium, Microbacterium, Pantoea, Peanibacillus, Pectobacterium, and Pseudomonas. In-vitro studies of interactions between non-X. cucurbitae and X. cucurbitae showed that Pantoea isolates had antibacterial activity against X. cucurbitae. None of the tested non-X. cucurbitae …
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