Dickeya solani: Difference between revisions
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How does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms. | How does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms. | ||
=8. Current Research= | =8. Current Research= | ||
Current research on D. solani focuses on the characteristics that lead to its aggressiveness as a plant pathogen. Much of the recent literature on this bacterium focuses on its pathology, due to its high virulence and ability to rapidly spread; these characteristics allow D. solani to cause great economic losses in agriculture | Current research on D. solani focuses on the characteristics that lead to its aggressiveness as a plant pathogen. Much of the recent literature on this bacterium focuses on its pathology, due to its high virulence and ability to rapidly spread; these characteristics allow D. solani to cause great economic losses in agriculture [[#References |[12]]].]]. Research has shown that D. solani has the ability to infect hosts under a wider range of environmental conditions than comparable plant pathogens; only 1.46% of its genes are oxygen-dependent, making it more effective at infecting plants at different oxygen availabilities than other disease-causing species (5). Much of the current research has also found that D. solani is able to infect potatoes under a larger range of temperatures and density load than other species. When comparing D. solani to other plant pathogenic bacteria in tubers, researchers found that D. solani was able to inoculate the tubers at densities and at a wider range of temperature of 21-27 ℃. (5). | ||
Recent studies have investigated D. solani at the genomic level to understand the severity of its virulence. One recent study found that different D. solani strains had key variability in virulence features like production of proteases, cellulases, and motility, while the rest of its genome remained largely conserved (10). When looking at the virulence of a strain with an intact adhesin gene, scientists found that its virulence was lower than strains where this gene had been disrupted. They concluded that D. solani’s aggressiveness as a pathogen is related to motility, rather than adherence to plant material (10). Ultimately, D. solani is more virulent than other species, with greater variability among species strains that could factor into the aggressiveness of the bacterium (6). | Recent studies have investigated D. solani at the genomic level to understand the severity of its virulence. One recent study found that different D. solani strains had key variability in virulence features like production of proteases, cellulases, and motility, while the rest of its genome remained largely conserved (10). When looking at the virulence of a strain with an intact adhesin gene, scientists found that its virulence was lower than strains where this gene had been disrupted. They concluded that D. solani’s aggressiveness as a pathogen is related to motility, rather than adherence to plant material (10). Ultimately, D. solani is more virulent than other species, with greater variability among species strains that could factor into the aggressiveness of the bacterium (6). | ||
In response to economic losses and the aggressiveness of D. solani in causing soft rot, research has also expanded into diagnostic methods and prevention of D. solani infection. One study looked at the diagnostic ability of serological testing on potato crops suspected of infection. Serological tests were found to lack the specificity to screen potato crops for D. solani effectively, with only 68% of isolates being identified by the antibodies (13). Instead, new immunoassay technologies with increased sensitivity capabilities for D. solani are an active area of research and implementation (13). Another study looked into 46 different bacteriophages as potential treatments to prevent D. solani infection. Researchers found 6 T7-like bacteriophages that, when combined in a viral cocktail and treated in vivo in the potatoes, significantly disease progression in the potatoes (14). | In response to economic losses and the aggressiveness of D. solani in causing soft rot, research has also expanded into diagnostic methods and prevention of D. solani infection. One study looked at the diagnostic ability of serological testing on potato crops suspected of infection. Serological tests were found to lack the specificity to screen potato crops for D. solani effectively, with only 68% of isolates being identified by the antibodies (13). Instead, new immunoassay technologies with increased sensitivity capabilities for D. solani are an active area of research and implementation (13). Another study looked into 46 different bacteriophages as potential treatments to prevent D. solani infection. Researchers found 6 T7-like bacteriophages that, when combined in a viral cocktail and treated in vivo in the potatoes, significantly disease progression in the potatoes (14). | ||
Revision as of 14:31, 6 December 2021
1. Classification
a. Higher order taxa
Domain; Phylum; Class; Order; Family; Genus Include this section if your Wiki page focuses on a specific taxon/group of organisms
2. Description and significance
Describe the appearance, habitat, etc. of the organism, and why you think it is important.
- Include as many headings as are relevant to your microbe. Consider using the headings below, as they will allow readers to quickly locate specific information of major interest*
3. Genome structure
Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence?
4. Cell structure
Interesting features of cell structure. Can be combined with “metabolic processes”
5. Metabolic processes
Describe important sources of energy, electrons, and carbon (i.e. trophy) for the organism/organisms you are focusing on, as well as important molecules it/they synthesize(s).
6. Ecology
Habitat; symbiosis; contributions to the environment.
7. Pathology
How does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.
8. Current Research
Current research on D. solani focuses on the characteristics that lead to its aggressiveness as a plant pathogen. Much of the recent literature on this bacterium focuses on its pathology, due to its high virulence and ability to rapidly spread; these characteristics allow D. solani to cause great economic losses in agriculture [12].]]. Research has shown that D. solani has the ability to infect hosts under a wider range of environmental conditions than comparable plant pathogens; only 1.46% of its genes are oxygen-dependent, making it more effective at infecting plants at different oxygen availabilities than other disease-causing species (5). Much of the current research has also found that D. solani is able to infect potatoes under a larger range of temperatures and density load than other species. When comparing D. solani to other plant pathogenic bacteria in tubers, researchers found that D. solani was able to inoculate the tubers at densities and at a wider range of temperature of 21-27 ℃. (5). Recent studies have investigated D. solani at the genomic level to understand the severity of its virulence. One recent study found that different D. solani strains had key variability in virulence features like production of proteases, cellulases, and motility, while the rest of its genome remained largely conserved (10). When looking at the virulence of a strain with an intact adhesin gene, scientists found that its virulence was lower than strains where this gene had been disrupted. They concluded that D. solani’s aggressiveness as a pathogen is related to motility, rather than adherence to plant material (10). Ultimately, D. solani is more virulent than other species, with greater variability among species strains that could factor into the aggressiveness of the bacterium (6). In response to economic losses and the aggressiveness of D. solani in causing soft rot, research has also expanded into diagnostic methods and prevention of D. solani infection. One study looked at the diagnostic ability of serological testing on potato crops suspected of infection. Serological tests were found to lack the specificity to screen potato crops for D. solani effectively, with only 68% of isolates being identified by the antibodies (13). Instead, new immunoassay technologies with increased sensitivity capabilities for D. solani are an active area of research and implementation (13). Another study looked into 46 different bacteriophages as potential treatments to prevent D. solani infection. Researchers found 6 T7-like bacteriophages that, when combined in a viral cocktail and treated in vivo in the potatoes, significantly disease progression in the potatoes (14).
9. References
It is required that you add at least five primary research articles (in same format as the sample reference below) that corresponds to the info that you added to this page. [Sample reference] Faller, A., and Schleifer, K. "Modified Oxidase and Benzidine Tests for Separation of Staphylococci from Micrococci". Journal of Clinical Microbiology. 1981. Volume 13. p. 1031-1035. Edited by [Mary Campion, ], student of Jennifer Bhatnagar for BI 311 General Microbiology, 2015, Boston University
