http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
A Novel Alternaria Species Isolated from Peucedanum japonicum in Korea
( Jian Xin Deng ),( Hye Sun Cho ),( Narayan Chandra Paul ),( Hyang Burm Lee ),( Seung Hun Yu ) 한국균학회 2014 Mycobiology Vol.42 No.1
We isolated and examined a new Alternaria sp., which causes leaf spots on Peucedanum japonicum in Korea, by using molecular and morphological methods. Phylogenetic analysis based on a combined internal transcribed spacer region analysis andtwo protein-coding genes(gpd and Alt a1) demonstrated that the causal fungus was most closely related to A. cinerariae and A. sonchi, and relevant to A. brassicae. However, conidial morphology indicated that it is a novel species within the genus Alternaria, and therefore we have assigned the fungus a new name in this study.
Occurrence of Leaf Blight on Cosmos Caused by Alternaria cosmosa in Korea
Jian Xin Deng,이지혜,Narayan Chandra Paul,조혜선,Hyang Burm Lee,유승헌 한국식물병리학회 2015 Plant Pathology Journal Vol.31 No.1
In 2011, a leaf blight disease was observed on cosmos(Cosmos bipinnatus) leaves in Nonsan, Korea. Thecausal pathogen was isolated and identified based onmorphological and molecular approaches. Morphologicalcharacteristics of the pathogen matched well with theAlternaria cosmosa and also easily distinguishablefrom Alternaria zinniae reported from cosmos seedsby producing branched beak. Phylogenetically, thepathogen could not be distinguished from A. passifloraebased on the sequence analysis of a combined dataset of Alt a1 and gpd genes. However, A. passifloraewas distinguished from the present species by havingconidiophores with 4 to 5 conidiogenous loci. Theresults indicate that the present Alternaria species is A. cosmosa. Pathogenicity tests revealed that the isolatewas pathogenic to the leaves of Cosmos bipinnatus. Thisis the first report of Alternaria blight disease caused byA. cosmosa on cosmos in Korea.
Alternaria brassicifolii sp. nov. Isolated from Brassica rapa subsp. pekinensis in Korea
( Jian Xin Deng ),( Mei Jia Li ),( Narayan Chandra Paul ),( May Moe Oo ),( Hyang Burm Lee ),( Sang-keun Oh ),( Seung Hun Yu ) 한국균학회 2018 Mycobiology Vol.46 No.2
A new species belonging to the genus Alternaria was isolated from the necrotic leaf spots of Brassica rapa subsp. pekinensis in Yuseong district, Daejeon, Korea. It is an occasional isolate, not an etiological agent, which is morphologically similar to A. broccoli-italicae, but differs in conidial size and conidiophore shape. Phylogenetic analysis using the sequence datasets of the internal transcribed spacer (ITS) region of the rDNA, glyceraldehyde-3-phosphate dehydrogenase (gpd), and plasma membrane ATPase genes showed that it is distantly related to A. broccoli-italicae and closely related to Alternaria species in the section Pseudoalternaria, which belonged to a clade basal to the section Infectoriae. Morphologically, the species is unique because it produces solitary conidia or conidial chains (two units), unlike the four members in the section Pseudoalternaria that produce conidia as short branched chains. It exhibits weak pathogenicity in the host plant. This report includes the description and illustration of A. brassicifolii as a new species.
Jian Xin Deng,Narayan Chandra Paul,상현규,Ji Hye Lee,황용수,유승헌 한국균학회 2012 Mycobiology Vol.40 No.1
Two species, Penicillium adametzioides and Purpureocillium lilacinum, were isolated from decayed grapes (cv. Cheongsoo) in Korea. Each species was initially identified by phylogenetic analysis of a combined dataset of two genes. Internal transcribed spacer (ITS) and β-tubulin (BT2) genes were used for identification of Penicillium adametzioides, and ITS and partial translation elongation factor 1-α (TEF) genes were used for identification of Purpureocillium lilacinum. Morphologically, they were found to be identical to previous descriptions. The two species presented here have not been previously reported in Korea.
Deng, Jian-Wei,Kim, Kwon-Bok,Song, Im-Sook,Shon, Ji-Hong,Zhou, Hong-Hao,Liu, Kwang-Hyeon,Shin, Jae-Gook John Wiley Sons, Ltd. 2008 Biomedical chromatography Vol.22 No.2
<P>We developed a method for determining pravastatin or pitavastatin, 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors, in plasma using liquid chromatography and tandem mass spectrometry (LC–MS/MS). Pravastatin, pitavastatin and the internal standard fluvastatin were extracted from plasma with solid-phase extraction columns and eluted with methanol. After drying the organic layer, the residue was reconstituted in mobile phase (acetonitrile:water, 90:10, v/v) and injected onto a reversed-phase C<SUB>18</SUB> column. The isocratic mobile phase was eluted at 0.2 mL/min. The ion transitions recorded in multiple reaction monitoring mode were m/z 423 → 101, 420 → 290 and 410 → 348 for pravastatin, pitavastatin and fluvastatin, respectively. The coefficient of variation of the assay precision was less than 12.4%, the accuracy exceeded 89%. The limit of detection was 1 ng/mL for all analytes. This method was used to measure the plasma concentration of pitavastatin or pravastatin from healthy subjects after a single 4 mg oral dose of pitavastatin or 40 mg oral dose of pravastatin. This is a very simple, sensitive and accurate analytic method to determine the pharmacokinetic profiles of pitavastatin or pravastatiny. Copyright © 2007 John Wiley & Sons, Ltd.</P>
Research Note: A New Record of Penicillium cainii from Soil in Korea
( Jian Xin Deng ),( Seung Hyun Ji ),( Narayan Chandra Paul ),( Ji Hye Lee ),( Seung Hun Yu ) 한국균학회 2013 Mycobiology Vol.41 No.2
Twenty Penicillium isolates were recovered during the investigation of fungal community in the soil samples collected from Wando (Jeonnam Province, Korea). Among them, one species was identified and described as P. cainii based on phylogentic analysis of internal transcribed spacer and β-tubulin (BT2) genes and morphological characteristics. This is a first report of P. cainii in Korea.
( Jian Xin Deng ),( Narayan Chandra Paul ),( Mei Jia Li ),( Eun Young Seo ),( Gi Ho Sung ),( Seung Hun Yu ) 한국균학회 2011 Mycobiology Vol.39 No.4
Species of Phoma and its allies were isolated during a survey on the diversity of endophytic fungi associated with pine trees in Korea. Based on the phylogenetic analyses of internal transcribed spacer and β-tubulin gene sequences, two Phoma-like species from the needles of Pinus koraiensis were identified as Peyronellaea calorpreferens and P. glomerata. They were also morphologically identified based on the previous descriptions. Here, we report P. calorpreferens and P. glomerata being present in Korea as endophytic fungi in Pinus koraiensis.
Research on Gain Scheduling Controller of the Networked Control System with Long Delay
Jian-Qiu Deng,Hongbo Li,Cui Hao,Zeng-qi Sun 제어·로봇·시스템학회 2015 International Journal of Control, Automation, and Vol.13 No.1
This paper addresses the stabilization and optimization problem of networked control systems (NCSs) with long time delays and parameter scheduling. According to the actual network conditions, the network time delay is divided into the fixed time delay and the random time delay. Then, the stabilization controller and the gain scheduling controller are constructed, where the stabilizing control parameters are obtained with cone complementary linearization (CCL) approach and the optimizing control parameters are solved with estimation of distribution algorithm (EDA). Simulation results demonstrate the effectiveness of the proposed methods.
( Jian Xin Deng ),( Chang Sun Kim ),( Eun Sung Oh ),( Seung Hun Yu ) 한국균학회 2010 Mycobiology Vol.38 No.4
Leaf spot and blight disease was observed on two-year-old seedlings of Dendropanax morbifera (Korean name: Hwangchil tree) during July of 2008 in Jindo Island, Korea. Symptoms included yellow-brown to dark brown irregularly enlarged spots frequently located along the veins of leaves. The lesions were often surrounded by chlorotic haloes. Severe leaf blight and subsequent defoliation occurred when conditions favored disease outbreak. The causal organism of the disease was identified as Alternaria panax based on morphological characteristics and sequence analysis of the internal transcribed spacer region of rDNA. A. panax isolates induced leaf spots and blight symptoms not only on D. morbifera but also on the other members of Araliaceae tested. This is the first report of foliar blight caused by A. panax on D. morbifera.