| Affiliations: | STEM Research Leadership |
| Project Leader: | Junepyo Oh
ohjunepyo@tamu.edu Entomology |
| Faculty Mentor: | Cecilia Tamborindeguy, Ph.D |
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Meeting Times:
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TBA |
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Team Size:
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3 |
| Open Spots: | 1 |
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Special Opportunities:
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Student can learn various skills in molecular biology.
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Team Needs:
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An eagerness to learn, consistency, honesty, basic knowledge in molecular biology, plant, and insect. |
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Description:
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Oxidative stress is the result of an imbalance between the production and accumulation of reactive oxygen species (ROS), and the ability of a biological system to remove these reactive substances. Several studies assessed oxidative stress in citrus infected by ‘Candidatus liberibacter asiaticus’ (CLas) and recent study showed CLas infection upregulates genes encoding ROS-producing NADPH oxidases, and downregulates antioxidant enzyme genes, supporting CLas causes oxidative stress in citrus. This study also showed the application of the foliar spray to reduces H2O2 reduced the symptoms in citrus. However, oxidative stress is poorly studied in ‘Candidatus liberibacter solanacearum’ (Lso) infection to its host plants. Lso is phlomed-limited bacterial pathogen. Currently, several haplotypes have been reported globally and haplotype A and B are transmitted by potato psyllids, and caused serious damage to solanaceous crops in Texas. Our previous data showed higher accumulation of H2O2 in LsoA-infected tomato plants than LsoB-infected tomato plants suggesting LsoA caused oxidative stress but not LsoB. In this study, we aim to assess and compare oxidative stress in LsoA or LsoB-infected tomato or potato. |