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Occurrence of Northern Cereal Mosaic Virus in Korea
이순형,Lee Soon Hyung,Shikata Eishiro Korean Society of Applied Entomology 1977 한국식물보호학회지 Vol.16 No.2
1963년부터 중부지방에 큰 피해를 주고 있는 맥류의 바이러스병을 동정하기 위하여 전자현미경에 의한 바이러스입자 관찰과 매개충을 이용한 전염시험 및 기주범위조사를 한 결과 정상입자의 평균 크기는 길이가 300-370nm였고 폭이 57-60nm였다. 매개충은 애멸구 Laodelphax striatellus(Fallen)로서 충체내 잠복기간은 7-19일이였고 대부분 10일간이었다. Host range는 보리, 옥수수, 밀, Rye맥, 구리 등으로 옥수수외의 기주식물들은 포장에서도 발병이 되고 있다. 그러므로 중부지방에서 발생되고 있는 맥류 바이러스병은 대부분이 북지모자익바이러스병으로 매년 $10\%$내외의 감염율을 보여주고 있으며 춘파맥에서는$100\%$ 감염 될 때도 있다. A barley virus disease has been severe in central Korea since 1963. To investigate the causal virus, examination of host ranges, transmission by insect vectors and · electron microscopy were conducted. In electron microscopy, particles identical with northern cereal mosaic virus were observed. The size of baciliform particles ranged from 300nm to 370nm in length and 57-60nm in diameter. The virus was transmitted by the small brown planthopper Laodelphax striatellus (Fallen). The latent period in the vector was seven to nineteen days, with 10 days the most prevalent. Barley, corn, wheat, rye, and oats were susceptible to the virus when inoculated by the insect vectors. It was concluded that the disease agent of the barley disease in Korea is northern cereal mosaic virus. This is the first known report of this disease in Korea.
Purification and Serology of Potato Virus S
이순형,이기운,정봉조,Lee Soon Hyung,Lee Key Woon,Chung Bong Jo Korean Society of Applied Entomology 1977 한국식물보호학회지 Vol.16 No.3
감자바이러스 S(PVS)의 진단, 동정 및 씨감자의 검정에 이용할 항혈청을 만들기 위하여 이병주로부터 PVS를 순수분리 순화하여 항혈청을 제조하였다. PVS는 지표식물파 전자 현미경으로 순수 분리하여 Nicotiana debneyii에서 증식하여 순화하였다. 순화된 PVS의 순화도는 1.18mg/ml이었으며 이것을 1.5ml씩 7일 간격으로 5회 .토끼에 주사하였으며 마지막 주사후 10일에 채혈하여 항혈청을 분리하였다. 제조된 PVS항혈청의 역가는 미량침강법에 의하여 1/2048로 나타났다. he study was conducted to produce an antiserum of potato virus S for identification and screening of seed-potatoes. Potato virus S was isolated from infected plants and identified by means of indicator plants and electro microscopy. Isolated potato virus S was multiplied in Nicotiana deebneyii and the virus was purified by a modified method that was developed through this study. The purity of potato virus S was 1.18mg/ml. Purified potato virus S was injected into rabbit intravenously once a week for 5 weeks. Antiserum was collected 10 days after the last injection. The produced antiserum was determined to have a titer of, 1/2048 by means of microprecipitin tests.