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RISS 인기검색어
- 검색키워드
- 저자 : Te-Hua Hsu (검색결과 6 건)
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Te‑Hua Hsu,Jin‑Chywan Gwo 한국유전학회 2017 Genes & Genomics Vol.39 No.6
In the winter of 2007–2008, a large number of fish were killed by chilling damage that occurred in the Pescadores (Penghu Archipelago). Such extreme weather events can cause rapid population changes, which provide an opportunity to understand the possible restoration mechanism of coral reef fishes in the Pescadores. The finescale genetic structure of the rabbitfish, Siganus fuscescens (Siganidae), was assessed using amplified fragment length polymorphism analysis. Significant genetic differences (lower gene flow) were observed between rabbitfish from the northern and southern parts of the Pescadores (Chenkong- Soukang, ΦST 0.075, P < 0.001) but not between those from the northern Pescadores and northeastern Taiwan (Chenkong-Keelung, ΦST 0.03, P > 0.02). The northern Pescadores and northeastern Taiwan have been shown to be relatively connected. The population structure of rabbitfish has complemented and helped support fish population recovery after several chilling events in the Pescadores.
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Hsu Te-Hua,Huang Chang-Wen,Lin Cheng-Hui,Lee Hung-Tai,Pan Chieh-Yu 한국수산과학회 2020 Fisheries and Aquatic Sciences Vol.23 No.2
Stock enhancement is considered to be a valuable approach for restoring fishery resources. Because no specific official institution in Taiwan is responsible for the production of fry, the released fry are purchased directly from the private sector. However, fishermen from the private industry have not established a genetic background, so the genetic composition for each batch of released fry is unclear. Mangrove red snapper (Lutjanus argentimaculatus), a prominent species released in Taiwan, was collected after its official release. One hundred and two field samples were compared with four batches of hatchery fry (n = 685) by using a microsatellite-based multiplex PCR assay. Four of the field samples (3.9%; 4/102) were revealed to be from a fish farm and most likely from a single batch. This study revealed that wild mangrove red snappers are genetically different from those originating from farms, and their origins can be traced through molecular markers, even without information on breeding stocks.
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Hsu, Te-Hua,Huang, Chang-Wen,Lin, Cheng-Hui,Lee, Hung-Tai,Pan, Chieh-Yu The Korean Society of Fisheries and Aquatic Scienc 2020 Fisheries and Aquatic Sciences Vol.23 No.5
Stock enhancement is considered to be a valuable approach for restoring fishery resources. Because no specific official institution in Taiwan is responsible for the production of fry, the released fry are purchased directly from the private sector. However, fishermen from the private industry have not established a genetic background, so the genetic composition for each batch of released fry is unclear. Mangrove red snapper (Lutjanus argentimaculatus), a prominent species released in Taiwan, was collected after its official release. One hundred and two field samples were compared with four batches of hatchery fry (n = 685) by using a microsatellite-based multiplex PCR assay. Four of the field samples (3.9%; 4/102) were revealed to be from a fish farm and most likely from a single batch. This study revealed that wild mangrove red snappers are genetically different from those originating from farms, and their origins can be traced through molecular markers, even without information on breeding stocks.
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Ching-Hua Huang,Po-Lin Kuo,Ya-Ling Hsu,Tai-Tsung Chang,Hsing-I Tseng,Yu-Te Chu,Chang-Hung Kuo,Huan-Nan Chen,Chih-Hsing Hung 한국식품영양과학회 2010 Journal of medicinal food Vol.13 No.2
Dietary flavonoids have various biological functions, and there is increasing evidence that reduced prevalence and severity of allergic reactions are associated with the intake of flavonoids. Among natural flavonoids, apigenin is a potent anti-inflammatory agent. However, the mechanisms of apigenin's effect remain uncertain. Monocyte-derived chemokine (MDC) plays a pivotal role in recruiting T-helper (Th) 2 cells in the allergic inflammation process. In the late phase of allergic inflammation, the Th1 chemokine interferon-inducible protein 10 (IP-10) has also been found in elevated levels in the bronchial alveolar fluid of asthmatic children. We used human THP-1 monocyte cells, pretreated with or without apigenin, prior to lipopolysaccharide stimulation. By means of enzyme-linked immunosorbent assay, we found that apigenin inhibited production of both MDC and IP-10 by THP-1 cells and that the suppressive effect of apigenin was not reversed by the estrogen receptor antagonist ICI182780. The p65 phosphorylation of nuclear factor κB remained unaffected, but the phosphorylation of p38, c-Jun N-terminal kinase, and extracellular signal-regulated kinase mitogen-activated protein kinase pathways were all blocked. We found that inhibition of c-raf phosphorylation might be the target of apigenin's anti-inflammation property.
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Genetic Diversity of a Novel Oil Crop, Camellia brevistyla, Revealed by ISSR DNA Markers
Mong-Huai Su,Te-Hua Hsu,Chun-Neng Wang,Kuan-Hung Lin,Ming-Chang Chiang,Ren-Dong Kang,Khiem M. Nguyen,Hoang Nguyen 한국원예학회 2017 원예과학기술지 Vol.35 No.5
Camellia brevistyla plants are used as food oil in Taiwan. To provide a method for identifying germplasm and assessing the genetic diversity of C. brevistyla , 102 individuals were collected from 29 populations in 11 counties throughout the main island of Taiwan. Inter-simple sequence repeat (ISSR) DNA markers were analyzed and a total of 176 bands were amplified. Of these, 175 bands were found to be polymorphic in these populations. Genetic similarities among populations ranged between 34.1-95.1%. Cluster analysis revealed seven groups of populations plus one outlier (C. kissii ). Five individuals from two populations in the southern region were grouped into cluster V, and six populations from both regions were grouped into cluster VII. The remaining populations from the northern region were separated into different clusters from V and VII. Results of an analysis of molecular variance indicated that the variation within populations (75%) was predominantly greater than variations among counties (18%) and among regions (7%). Overall, the gene flow (Nm = 0.509) estimated from genetic differentiation (Gst = 0.534) suggested that gene flow among regions was limited. Higher genetic diversity (H = 0.317), Shannon’s index (I = 0.477), and gene flow (Nm = 0.538) of populations were found in the northern region compared to the southern region. The DNA sequences of C. brevistyla amplified by two oil-biosynthesis genes showed 99-100% homology with those of C. oleifera. Camellia brevistyla populations are highly differentiated and can serve as a basis for the food oil industry as a germplasm resource.
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Characteristics and heterostructure of metal-doped TiO2/ZnO nanocatalysts
Chen Wu-Jhang,Hsu Kuo-Chin,Fang Te-Hua,Chen Tao-Hsing,Li Ming-Hao 한국물리학회 2022 Current Applied Physics Vol.38 No.-
In this study, Ag or Al-doped TiO2/ZnO heterostructure nanocatalysts were prepared using a sol-gel method for photocatalysis to evaluate the degradability. The photocatalytic behavior was evaluated by the degradation of methylene blue (MB) under ultraviolet (UV) light irradiation. Photocatalytic studies suggested that 1 mol% Agdoped TiO2/ZnO (TiO2/ZnO = 0.75/0.25) heterostructure nanocatalysts showed higher photocatalytic activity, and that the degradation efficiency can reach 83% in 4 h, 14% higher than that for pure TiO2. Finally, the photocatalysis mechanism for the Ag-doped TiO2/ZnO heterostructure nanocatalysts is discussed.
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