New Alternate Host of Rice stripe virus -

Yoon, Young Nam; Lee, Bong Choon; Jung, Ji Hun; Kim, Jung In; Hwang, Jae Bok; Kim, Chang Seok; Hong, Sung Jun; Kang, Hang Won; Song, Suk Bo; Hong, Yeun Gyu; Par, Sung Tae

Research in Plant Disease 2009;15(2):63-67.
Published online August 30, 2009.

벼 줄무늬잎마름병의 새로운 중간기주 "들묵새"

윤영남, 이봉춘, 정지훈, 김정인, 황재복, 김창석, 홍성준, 강항원, 송석보, 홍연규, 박성태

New Alternate Host of Rice stripe virus - "Deulmuksae"

Young Nam Yoon, Bong Choon Lee, Ji Hun Jung, Jung In Kim, Jae Bok Hwang, Chang Seok Kim, Sung Jun Hong, Hang Won Kang, Suk Bo Song, Yeun Gyu Hong, Sung Tae Par

Abstract

Rice stripe virus (RSV) is one of Tenuivirus Group, which is carried by small brown planthopper. There is an outbreak of RSV in South Korea at 2001, and 2007. The infection caused by RSV had been investigated on weeds around the rice cultivated areas 13 region and 26 site including Jeonbuk Buan and Chungnam Seocheon. There have a doubt as to alternate host of RSV is total 15 Family and 50 Species including Gramineae 24 species of Duksaepul (Alopecurus aequalis), H. sativum var. vulgare etc.. There is identified the infected RSV in Festuca myuros, Alopecurus aequalis, Hordeum sativum var. vulgare, Trisetum bifidum, Echinochloa crusgalli var. crus-galli, Digitaria ciliaris among this species. Deulmuksae is the overwintering exotic weed which sprout in Autumn and wither in Spring and commonly growed as green manure crop or cover crop. In order to identify the infection rate furthermore, 111 samples which were collected at Buan Gyehwa-myeon region, and 50 samples from Seocheon Maseo-myeon in June, 2008, were ELISA tested. The results are 32 positives from Buan, 28.8% infection rate, 8 positives from Seocheon 16.0% infection rate. RSV infection of Deulmuksae is not reported currently, and follow report first describes the Deulmuksae as an alternate host of RSV.

Key Words: Alternate host, Deulmuksae, Rice stripe virus