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  2. College of Bioresources and Agriculture / 生物資源暨農學院
  3. Plant Pathology and Microbiology / 植物病理與微生物學系
  4. Investigation of the effect of sodium butyrate on plant virus prevention and its mechanism
 
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Investigation of the effect of sodium butyrate on plant virus prevention and its mechanism

Date Issued
2014
Date
2014
Author(s)
Li, Pei-ying
URI
http://ntur.lib.ntu.edu.tw//handle/246246/263050
Abstract
Viruses cause serious damage to crops; however, effective plant antiviral disease managements remain largely to be explored. Histone deacetylases (HDACs) are genes involved in histone regulation, and modulate the expression of genes. Previous studies demonstrated that in histone deacetylases (HDACs) single-gene-knockout yeasts the accumulation of Brome mosaic virus and Tomato bushy stunt virus decreased, and application of histone deacetylase inhibitors (HDACi) to HCV replicon cell OR6 showed suppressive effect on Hepatitis C virus. However, whether HDACi can be applied for plant viral disease management remained to be resolved. In this study, we first treated sodium butyrate (one kind of HDACi) to Nicotiana benthamiana, a susceptible host, to Tobacco mosaic virus (TMV). The data indicated that plants pretreated with sodium butyrate showed more vigorously growth and delayed in symptom expression than untreated plants after TMV inoculation. In addition, our RT-PCR revealed that the application of sodium butyrate induced the expression of PR-1a, suggested that sodium butyrate participated in the salicylic acids (SA) related plant defense pathway. Furthermore, in contrast to SA-treated plants the expression of PR-1a is stronger in treated leaves than systemic leaves; sodium butyrate-treated leaf shows stronger PR-1a induction in systemic leaves. The production of ROS showed obviously increase in the systemic leaf of sodium butyrate-treated N. benthamiana. It indicated that SA may trigger stronger local defense and sodium butyrate trigger stronger systemic defense. Thus, we applied both SA and sodium butyrate solutions on the leaves of N. benthamiana, and enhanced resistance was observed on the mixed solutions-treated plants. It revealed that sodium butyrate has the potential to be applied in development of effective systemic antiviral disease managements.
Subjects
histone deacetylases (HDACs)
histone deacetylase inhibitors (HDACi)
sodium butyrate
菸草嵌紋病毒
圓葉菸草
SDGs

[SDGs]SDG3

Type
thesis
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ntu-103-R01633006-1.pdf

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(MD5):4485a153e8fc6adc4d3d45fcebff2b42

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