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한국산 장마(Dioscorea oppasita cv. Jang-Ma)에서 분리한 Chinese yam necrotic mosaic virus
강동균,곤도토루,신종희,신혜영,성정현,강상구,장무웅,Kang, Dong-Kyoon,Kondo, Toru,Shin, Jong-Hee,Shin, Hye-Young,Sung, Jung-Hyun,Kang, Sang-Gu,Chang, Moo-Ung 한국식물병리학회 2003 식물병연구 Vol.9 No.3
경상북도 안동, 의성, 군위, 대구의 장마 재배포장에서 모자이크와 괴저반점을 보이는 장마잎을 채집하였다. 이들 이병 잎 조직을 시료로 하여 D N 법 및 ISEM법에 의해 투과전자현미경으로 바이러스 입자를 관찰한 결과, 각각의 시료에서 ChYNMV 항혈청에 반응한 660nm의 사상형 입자가 확인되었다. 장마 잎에서 부분 정제한 바이러스에서 RNA를 추출하여 이것을 주형으로 ChYNMV 특이적 프라이머와 oligo-dT 프라이머를 이용하여 외피단백질 유전자와 3‘-말단 비전사부위를 포함하는 약 1.2kbp의 3’-말단을 증폭하였다. 외피단백질 아미노산서열은 Macluravirus로 알려진 ChYNMV (A B044386)와 97.9%의 상동성을 보여 장마에서 분리한 바이러스를 ChYNMV로 동정하였다. ChYNMV와 다른 Macluavirus의 외피 단백질 아미노산서열을 비교한 결과, M말단 영역에서 가장 많은 변이를 확인하였고 Macluravirus 속에는 잘 보존된 영역이 존재하였다. Chinese yam (Dioscorea opposita cv. Jang-Ma) plants showing necrotic mosaic symptom were collected from their growing fields in Andong, Euisong, Gunwi and Daegu, Korea. Direct negative stainning method by electron microscope showed filamentous particles of about 660 nm in length. Immunosorbent electron microscopy (ISEM) revealed filamentous particles of 660nm decorated with antiserum of Chinese yam necrotic mosaic virus (ChYNMV). The virues purified partially were used to isolate viral RNA as template for RT-PCR to amplify about 1.2 kbp of 3'-terminal region (coat protein, 3'-UTR) with ChYNMV specific and oligo-dT primers. Amino acids sequences of amplified CP genes revealed that the viruses shared 97.9% similarity with ChYNMV (AB044386) wh ich was known as the member of Macluravirus. So the viruses from Chinese yam (D. opposita cv. Jang-Ma) plants were identified as ChYNMV. Comparing the CP amion acid sequences of ChYNMV strains with other macluraviruses such as Cardamon mosaic virus (CdMV), Narcissus latent virus (NLV) and Maclura mosaic virus (MacMV) revealed that N-terminal was the most varialbe region and conserved regions were present within the genus Macluravirus.
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한국산장마에서 (Dioscorea opposita cv. Jang-Ma) 에서 분리한 Chinese yam necrotic mosaic virus
강동균,장무웅,강상구,신혜영,곤도토루,신종희,성정현 한국식물병리학회 2003 식물병연구 Vol.9 No.3
Chinese yam (Dioscorea opposita cv. Jang-Ma) plants showing necrotic mosaic symptom were collected from their growing fields in Andong, Euisong, Gunwi and Daegu, Korea. Direct negative staining method by electron microscope showed filamentous particles of about 660 nm in length. Immunosorbent electron microscopy (ISEM) revealed filamentous particles of 660 nm decorated with antiserum of Chinese yam necrotic mosaic virus (ChYNMV). The virues purified partially were used to isolate viral RNA as template for RT-PCR to amplify about 1.2 kbp of 3'-terminal region (coat protein, 3'-UTR) with ChYNMV specific and oligo-dT primers. Amino acids sequences of amplified CP genes revealed that the viruses shared 97.9% similarity with ChYNMV (AB044386) which was known as the member of Macluravirus. So the viruses from Chinese yam (D. opposita cv. Jang-Ma) plants were identified as ChYNMV. Comparing the CP amino acid sequences of ChYNMV strains with other macluraviruses such as Cardamon mosaic virus (CdMV), Narcissus latent virus (NLV) and Maclura mosaic virus (MacMV) revealed that N-terminal was the most variable region and conserved regions were present within the genus Macluravirus.
ScienceON
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