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RISS 인기검색어
- 검색키워드
- 저자 : Yugang Gao (검색결과 3 건)
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Liu, Shuangli,Xu, Yonghua,Gao, Yugang,Zhao, Yan,Zhang, Aihua,Zang, Liansheng,Wu, Chunsheng,Zhang, Lianxue The Korean Society of Ginseng 2020 Journal of Ginseng Research Vol.44 No.1
Background: The lepidopteran Asiatic corn borer (ACB), Ostrinia furnacalis (Guenee), has caused huge economic losses throughout the Asian-Western Pacific region. Usually, chemical pesticides are used for the control, but excessive use of pesticides has caused great harm. Therefore, the inartificial ecotypic pesticides to ACB are extremely essential. In our previous study, we found that panaxadiol saponins (PDS) can effectively reduce the harm of ACB by causing antifeedant activity. Therefore, it is necessary to reveal the biological molecular changes in ACB and the functionary mechanism of PDS. Methods: We analyzed the global transcription of ACB with different PDS concentration treatment (5 mg/mL, 10 mg/mL, and 25 mg/mL) by high-throughput sequencing and de novo transcriptome assembly method. Results: PDS treatment could cause the changes of many gene expressions which regulate its signal pathways. The genes in peroxisome proliferator-activated receptor (PPAR) signaling pathway were significantly downregulated, and then, the downstream fatty acid degradation pathway had also been greatly affected. Conclusion: Through this experiment, we hypothesized that the occurrence of antifeedant action of ACB is because the PDS brought about the downregulation of FATP and FABP, the key regulators in the PPAR, and the downregulation of FATP and FABP exerts further effects on the expression of SCD-1, ACBP, LPL, SCP-X, and ACO, which leads to the disorder of PPAR signaling pathway and the fatty acid degradation pathway. Not only that, PDS treatment leads to enzyme activity decrease by inhibiting the expression of genes associated with catalytic activity, such as cytochrome P450 and other similar genes.
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Shuangli Liu,Yonghua Xu,Yugang Gao,Yan Zhao,Aihua Zhang,Liansheng Zang,Chunsheng Wu,Lianxue Zhang 고려인삼학회 2020 Journal of Ginseng Research Vol.44 No.1
Background: The lepidopteran Asiatic corn borer (ACB), Ostrinia furnacalis (Guenee), has caused hugeeconomic losses throughout the Asian-Western Pacific region. Usually, chemical pesticides are used forthe control, but excessive use of pesticides has caused great harm. Therefore, the inartificial ecotypicpesticides to ACB are extremely essential. In our previous study, we found that panaxadiol saponins(PDS) can effectively reduce the harm of ACB by causing antifeedant activity. Therefore, it is necessary toreveal the biological molecular changes in ACB and the functionary mechanism of PDS. Methods: We analyzed the global transcription of ACB with different PDS concentration treatment (5 mg/mL, 10 mg/mL, and 25 mg/mL) by high-throughput sequencing and de novo transcriptome assemblymethod. Results: PDS treatment could cause the changes of many gene expressions which regulate its signalpathways. The genes in peroxisome proliferatoreactivated receptor (PPAR) signaling pathway weresignificantly downregulated, and then, the downstream fatty acid degradation pathway had also beengreatly affected. Conclusion: Through this experiment, we hypothesized that the occurrence of antifeedant action of ACBis because the PDS brought about the downregulation of FATP and FABP, the key regulators in the PPAR,and the downregulation of FATP and FABP exerts further effects on the expression of SCD-1, ACBP, LPL,SCP-X, and ACO, which leads to the disorder of PPAR signaling pathway and the fatty acid degradationpathway. Not only that, PDS treatment leads to enzyme activity decrease by inhibiting the expression ofgenes associated with catalytic activity, such as cytochrome P450 and other similar genes.
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Inactivation of Vibrio parahaemolyticus by Aqueous Ozone
( Lifang Feng ),( Kuo Zhang ),( Mengsha Gao ),( Chunwei Shi ),( Caiyun Ge ),( Daofeng Qu ),( Junli Zhu ),( Yugang Shi ),( Jianzhong Han ) 한국미생물생명공학회(구 한국산업미생물학회) 2018 Journal of microbiology and biotechnology Vol.28 No.8
Vibrio parahaemolyticus contamination causes serious foodborne illness and has become a global health problem. As a disinfectant, aqueous ozone can effectively kill a number of bacteria, viruses, parasites, and other microorganisms. In this study, three factors, namely, the aqueous ozone concentration, the exposure time, and the bacterial density, were analyzed by response surface methodology, and the aqueous ozone concentration was the most influential factor in the sterilization ratio. Under low aqueous ozone concentrations (less than 0.125 mg/l), the bacterial cell membranes remained intact, and the ozone was detoxified by intracellular antioxidant enzymes (e.g., superoxide dismutase and catalase). Under high aqueous ozone concentrations (more than 1 mg/l), cell membranes were damaged by the degree of peripheral electronegativity at the cell surface and the concentration of lactate dehydrogenase released into the extracellular space, and the ultrastructures of the cells were confirmed by transmission electron microscopy. Aqueous ozone penetrated the cells through leaking membranes, inactivated the enzymes, inhibited almost all the genes, and degraded the genetic materials of gDNA and total RNA, which eventually led to cell death.
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