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서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
Tomato Yellow Leaf Curl Virus Infection in a Monocotyledonous Weed (Eleusine indica)
Eui-Joon Kil,Hee-Seong Byun,Hyunsik Hwang,Kyeong-Yeoll Lee,Hong-Soo Choi,Chang-Seok Kim,Sukchan Lee 한국식물병리학회 2021 Plant Pathology Journal Vol.37 No.6
Tomato yellow leaf curl virus (TYLCV) is one of the most important plant viruses belonging to the genus Begomovirus of the family Geminiviridae. To identify natural weed hosts that could act as reservoirs of TY- LCV, 100 samples were collected at a TYLCV-affected tomato farm in Iksan from 2013 to 2014. The sample weeds were identified as belonging to 40 species from 18 families. TYLCV was detected in 57 samples belonging to 28 species through polymerase chain reaction using root samples including five species (Eleusine indica, Digitaria ciliaris, Echinochloa crus-galli, Pani- cum dichotomiflorum, and Setaria faberi) from the fam- ily Poaceae. Whitefly Bemisia tabaci-mediated TYLCV transmission from TYLCV-infected E. indica plants to healthy tomatoes was confirmed, and inoculated to- matoes showed typical symptoms, such as leaf curling and yellowing. In addition, TYLCV was detected in leaf and root samples of E. indica plants inoculated by both whitefly-mediated transmission using TYLCV-virulif- erous whitefly and agro-inoculation using a TYLCV infectious clone. The majority of mastreviruses infect monocotyledonous plants, but there have also been re- ports of mastreviruses that can infect dicotyledonous plants, such as the chickpea chlorotic dwarf virus. No exception was reported among begomoviruses known as infecting dicots only. This is the first report of TY- LCV as a member of the genus Begomovirus infecting monocotyledonous plants.
Emerging new geminivirus via both seed borne transmission and whitefly mediated transmission
Eui-Joon Kil,SukchanLee 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.10
Sweetpotato whitefly and whitefly-transmitted tomato yellow leaf curl virus (TYLCV) are major threats to tomatoand pepper production in all around world. TYLCV was reported in the Mediterranean countries and has spread to othercountries via different routes. Recent results emphasize that resistant tomato genotypes against TYLCV infection can serveas TYLCV and whitefly reservoirs and potentially influence TYLCV epidemics. Recent studies showed that geminivirusesincluding TYLCV can be seed transmissible viruses. Taken together, to prevent the outbreak or rapid spread of new geminivirus,both insect vector mediated transmission and seed transmission should be concerned.
Newly emerging geminiviruses in Korea
Eui-Joon Kil,Chairina Fadhila,Vo Thi Bich Thuy,Aamir Lal,Samira Zarghami D.,Hee-Seong Byun,Chung-Kyoon Auh,Ji-Kwang Kim,Joong-Hwan Lee,Gwan-Seok Lee,Chang-Seok Kim,Hong-Soo Choi,Kyeong-Yeoll Lee,Sukch 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.10
Geminiviruses are plant-infecting viruses with monopartite or bipartite single-stranded circular DNA genomes. They are known to be mediated by insects such as whiteflies, treehoppers, leafhoppers or aphids and can cause devastating plant diseases in a wide range of economically significant crops worldwide. In Korea, occurrence of geminiviruses were reported officially after the 2000s. Although Honeysuckle yellow vein virus (HYVV) and Sweet potato leaf curl virus (SPLCV) were identified from honeysuckle and sweet potato in 2004 and 2006 respectively, these viruses did not spread and cause much concern for geminiviruses. In 2008, Tomato yellow leaf curl virus (TYLCV) that has caused severe tomato production loss in many subtropical and tropical countries was first reported in tomato plants cultivated in Tongyeong. TYLCV rapidly spread through the country and has been continuously reported from tomato cultivating areas in Korea. In addition to TYLCV, Tobacco leaf curl virus and Sweet potato golden vein associated virus have occurred. In recent years, new geminiviruses including Papaya leaf curl Guangdong virus (PaLCGdV) and Euphorbia leaf curl virus (EuLCV) have been introduced. Newly emerging geminiviruses from tropical and subtropical countries are due to increased demand for various fruits and vegetables, and climate change. In addition, there are reports that some geminiviruses including TYLCV can be transmitted by infected seeds. Therefore it is important to study on epidemiology of virus introduction and spread among the countries and within country.
Life Cycle-Based Host Range Analysis for Tomato Spotted Wilt Virus in Korea
Eui-Joon Kil,Young-Jae Chung,Hong-Soo Choi,Sukchan Lee,Chang-Seok Kim 한국식물병리학회 2020 Plant Pathology Journal Vol.36 No.1
Tomato spotted wilt virus (TSWV) is one of the plant viruses transmitted by thrips and causes severe economic damage to various crops. From 2008 to 2011, to identify natural host species of TSWV in South Korea, weeds and crops were collected from 5 regions (Seosan, Yesan, Yeonggwang, Naju, and Suncheon) where TSWV occurred and were identified as 1,104 samples that belong to 144 species from 40 families. According to reverse transcription-polymerase chain reaction, TSWV was detected from 73 samples from 23 crop species, 5 of which belonged to family Solanaceae. Additionally, 42 weed species were confirmed as natural hosts of TSWV with three different life cycles, indicating that these weed species could play an important role as virus reservoirs during no cultivation periods of crops. This study provides up-to-date comprehensive information for TSWV natural hosts in South Korea.
Seed transmission of Tomato yellow leaf curl virus in sweet pepper (Capsicum annuum)
Kil, Eui-Joon,Park, Jungho,Choi, Eun-Young,Byun, Hee-Seong,Lee, Kyeong-Yeoll,An, Chul Geon,Lee, Joong-Hwan,Lee, Gwan-Seok,Choi, Hong-Soo,Kim, Chang-Seok,Kim, Ji-Kwang,Lee, Sukchan Springer-Verlag 2018 European journal of plant pathology Vol.150 No.3