Research in Plant Disease 2013;19(4):281-287.
Published online December 30, 2013.
Soybean yellow mottle mosaic virus의 자연기주와 병환
이수헌 ( Su Heon Lee ) , 김창석 ( Chang Suk Kim )
 
Natural Hosts and Disease Cycle of Soybean yellow mottle mosaic virus
Su-Heon Lee1,2* and Chang-Suk Kim3
1School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 702-701, Korea
2Institute of Plant Medicine, Kyungpook National University, Daegu 702-701, Korea
3Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Korea
Received: October 20, 2013   Revised: October 22, 2013   Accepted: October 23, 2013
Abstract
In surveys of weed occurrence undertaken from 2006 to 2007, near to the Daegu experimental fields of the National Institute of Crop Science, plants belonging to 31 families, 74 genera and 96 species were found. For the investigation of the natural or alternative hosts of Soybean yellow mottle mosaic virus (SYMMV), 495 plant samples belonging to 26 families 84 species were subjected to RT-PCR. SYMMV was detected only from legume plants such as Glycine soja, Vigna angularis var. nipponensis, Trifolium repens, and Lespedeza cuneata. Among legume plants tested, more than a third of G. soja (wild soybean) contained SYMMV, indicating that the wild soybean played an important role as a reservoir of SYMMV. Wild soybeans may be infected with SYMMV as early as mid-July. Considering the results of early infection and the high infection rate of seed and seed transmission of SYMMV in G. soja, wild soybeans may have played an important role in the completion of disease cycle of the virus.
Key Words: Disease cycle, Natural hosts, Soybean, Soybean yellow mottle mosaic virus, Wild soybean


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