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Articles 1 - 7 of 7
Full-Text Articles in Plant Pathology
Identification And Characterization Of The Antimicrobial Activities Of Pseudomonas Sp. Strain Wp18, Emma Suzanne Willis
Identification And Characterization Of The Antimicrobial Activities Of Pseudomonas Sp. Strain Wp18, Emma Suzanne Willis
Theses and Dissertations
Strain WP18 was isolated from disease suppressive soil of a soybean rhizosphere in the Mississippi Delta. Phylogenetic analysis supported that strain WP18 could represent a novel species within the genus Pseudomonas. This conclusion is supported by genome-wide bioinformatic analyses such as average nucleotide identity and genome to genome distance calculations. Further studies are needed to claim a novel bacterial species, which include cell fatty profiles, fingerprinting analysis, and polar lipid analysis based on the International Code for Nomenclature of Prokaryotes. Strain WP18 showed a broad-spectrum of antimicrobial activity against plant pathogenic bacteria and fungi that are economically important in agriculture, …
Evaluation Of Soybean [Glycine Max (L.) Merr.] Cultivar Response To Prophylactic Fungicide Application, Steven B. Stoker
Evaluation Of Soybean [Glycine Max (L.) Merr.] Cultivar Response To Prophylactic Fungicide Application, Steven B. Stoker
Theses and Dissertations
Soybean growers in the southern United States commonly deal with disease issues that can limit yield potential. As a result, growers have adopted prophylactic fungicide application targeted at specific growth stages as a standard management practice. However, yield responses to prophylactic applications have become sporadic over time. One major change that has occurred is adoption of cultivars with improved disease tolerances. Therefore, the objective of this research was to evaluate yield response of cultivars representing multiple genetic backgrounds to fungicides applied prophylactically at the R4 soybean growth stage. Experiments were conducted in 2020 and 2021 to determine the yield impact …
Dynamics Of Redox-Driven Molecular Processes In Local And Systemic Plant Immunity, Philip Berg
Dynamics Of Redox-Driven Molecular Processes In Local And Systemic Plant Immunity, Philip Berg
Theses and Dissertations
The work here presents two main parts. In the first part, chapters 1 – 3 focus on dynamical systems modeling in plant immunity, whereas chapters 4 – 6 describe contributions to computational modeling and analysis of proteomics and genomics data. Chapter 1 investigates dynamical and biochemical patterns of reversibly oxidized cysteines (RevOxCys) during effector-triggered immunity (ETI) in Arabidopsis, examines the regulatory patterns associated with Arabidopsis thimet oligopeptidase 1 and 2’s (TOP1 and TOP2), roles in the RevOxCys events during ETI, and analyzes the redox phenotype of the top1top2 mutant. The second chapter investigates the peptidome dynamics during ETI …
The Emerging Value Of The Viroid Model In Understanding Plant Responses To Foreign Rnas, Junfei Ma
The Emerging Value Of The Viroid Model In Understanding Plant Responses To Foreign Rnas, Junfei Ma
Theses and Dissertations
RNAs play essential roles in various biological processes. Mounting evidence has demonstrated that RNA subcellular localization and intercellular trafficking govern their functions in coordinating plant growth at the organismal level. Beyond that, plants constantly encounter foreign RNAs (i.e., RNAs from pathogens including viruses and viroids). The subcellular localizations of RNAs are crucial for their function. While numerous types of RNAs (i.e., mRNAs, small RNAs, rRNAs, tRNAs, and long noncoding RNAs) have been found to traffic in a non-cell-autonomous fashion within plants, the underlying regulatory mechanism remains unclear. Viroids are single-stranded circular noncoding RNAs, which entirely rely …
Characterization Of Corynespora Cassiicola Resistance To The Quinone Outside Inhibitor Fungicides, Elucidation Of Fitness Parameters, And Defining Alternative Fungicide Product Strategies In Mississippi Soybean, Xiaopeng Wang
Theses and Dissertations
Target spot, caused by Corynespora cassiicola, is a common lower canopy disease of soybean in the southern United States. Given the recent resurgence of target spot and increasing reports of resistance to the quinone outside inhibitor (QoI) fungicide class within C. cassiicola, a survey of C. cassiicola from the Mississippi soybean production system was initiated in 2019 to determine the nature of its resistance mechanisms. A total of 819 monoconidial isolates were collected from 228 geographic field locations in 75 Mississippi counties. The molecular mechanism of resistance was determined using a PCR-RFLP analysis by comparing nucleotide sequences in …
Proceedings Of The 2022 Passion Fruit Conference: Growing The U.S. Passion Fruit Industry A Strategic Conference For: Growers, Marketers, Researchers, And Stakeholders, Eric T. Stafne
CREC Publications
We are pleased to deliver these proceedings of the passion fruit conference that was held in Homestead, Florida on June 14 and 15, 2022. It was a culmination of a lot of hard work by many people, most of them listed in the previous page. However, it would not have been a success without the attendees who came from various parts of the country to share their experiences growing passion fruit. What follows in these proceedings are the slides of the presentations with by notes taken by attendees along with notes taken of discussion regarding the five priority topic areas: …
Genetic Characterization Of Antimicrobial Activities Of Endophytic Bacteria Burkholderia Strains Ms455 And Ms389, Jiayuan Jia
Genetic Characterization Of Antimicrobial Activities Of Endophytic Bacteria Burkholderia Strains Ms455 And Ms389, Jiayuan Jia
Theses and Dissertations
Strains MS455 and MS389, endophytic bacteria, were isolated from healthy soybean plant growing adjacent to a patch of plants affected by charcoal rot disease, caused by the fungal pathogen Macrophomina phaseolina. The complete genomes of both strains were sequenced and identified as Burkholderia species Strain MS455 exhibits broad-spectrum antifungal activities against economically important pathogens, including Aspergillus flavus. Random and site-specific mutations were employed in discovery of the genes that share high homology to the ocf gene cluster of Burkholderia contaminans strain MS14, which is responsible for production of the antifungal compound occidiofungin. RNA-seq analysis demonstrated ORF1, a …