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Na Sun,Tong Yu,Jun-Xing Zhao,Yaogui Sun,Junbing Jiang,Zhi-Bian Duan,WenkuiWang,Yuan-Liang Hu,Hai-Min Lei,HongquanLi 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.1
Twenty natural compounds isolated fromtraditional Chinese medicines were examined for theirantiviral activities against PCV2 in vitro. Antiviral activitywas analyzed by the assays of blocking of virus entry,inhibition of virus replication and inactivation of virusparticles in the virus suspension. 50% cytotoxic concentration(CC50) and 50% effective concentration (EC50) for eachcompound were determined by using the MTT method andimmunofluorescence assay (IFA), respectively. The resultsobtained from the inhibition of virus replication andinactivation of virus particles showed that the maximuminhibition rates for matrine and scutellarin were 57 and72.69% and their SI were 29.87 and 18.66, respectively. However, the results from the assays of inhibition of virusentry and inhibition of virus replication demonstrated thatboth aesculetin and arecoline hydrochloride stimulatedPCV2 replication, with the maximum stimulation rate of387.3 and 219.4%. In summary, both matrine and scutellarinhad antiviral activity against PCV2, while aesculetin andarecoline hydrochloride promoted PCV2 infection replicationin vitro.
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Trichoderma biodiversity in major ecological systems of China
Kai Dou,Jinxin Gao,Chulong Zhang,Hetong Yang,Xiliang Jiang,Jishun Li,Yaqian Li,Wei Wang,Hongquan Xian,Shigui Li,Yan Liu,Jindong Hu,Jie Chen 한국미생물학회 2019 The journal of microbiology Vol.57 No.8
An investigation of Trichoderma biodiversity involving a large-scale environmental gradient was conducted to understand the Trichoderma distribution in China. A total of 3,999 isolates were isolated from forestry, grassland, wetland and agriculture ecosystems, and 50 species were identified based on morphological characteristics and sequence analysis of genetic markers. Trichoderma harzianum showed the largest proportion of isolates and the most extensive distribution. Hypocrea semiorbis, T. epimyces, T. konilangbra, T. piluliferum, T. pleurotum, T. pubescens, T. strictipilis, T. hunua, T. oblongisporum and an unidentified species, Trichoderma sp. MA 3642, were first reported in China. Most Trichoderma species were distributed in Jilin and Heilongjiang Provinces in northeast China and the fewest were distributed in Qinghai Province. Based on the division of ecological and geographic factors, forestry ecosystems and low-altitude regions have the greatest species biodiversity of Trichoderma.
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Data Fusion Based Phase Space Reconstruction from Multi-Time Series
Rongxi Wang,Jianmin Gao,Zhiyong Gao,Xu Gao,Hongquan Jiang,Le Cui 보안공학연구지원센터 2015 International Journal of Database Theory and Appli Vol.8 No.6
Focused on the problem of imperfect information in the process of reconstruction from single time series, a new technology for phase space reconstruction from multi-time series based on the data fusion is proposed. Firstly, the methods Cao and mutual information are used to select the reconstruction parameters, time delay and embedded dimension; secondly, the social cognitive optimization algorithm is brought to calculate the weights for each variable; thirdly, an adaptive weighted fusion estimating method is applied for data fusion; lastly, the effectiveness of the methods mentioned in this paper is demonstrated by the analysis results of one case study of real chemical plant data sets, and the proposed methods in this paper can improve the completeness of the information of the reconstructed phase space, which is also a good foundation for further analysis of complex system.
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