Bacterial Stripe of Proso Millet Caused by Acidovorax avenae subsp. avenae in Korea

Research in Plant Disease 2012;18(3):236-239.
Published online September 30, 2012.

Acidovorax avenae subsp. avenae에 의한 기장 세균성줄무늬병

윤영남 ( Young Nm Yoon ) , 정지훈 ( Ji Hun Jung ) , 이영훈 ( Yeong Hoon Lee ) , 김현주 ( Hyun Joo Kim ) , 배순도 ( Soon Do Bae ) , 최병렬 ( Byeong Ryeol Choi ) , 남민희 ( Min Hee Nam ) , 이영기 ( Young Kee Lee )

Bacterial Stripe of Proso Millet Caused by Acidovorax avenae subsp. avenae in Korea

Young Nam Yoon*, Jihun Jung, Yeonghoon Lee1, Hyunjoo Kim, Soondo Bae, Byeongryeol Choi2, Minhee Nam and Young Kee Lee3**

Functional Cereal Crop Research Division, National Institute of Crop Science, Rural Development Administration, Miryang 627-803, Korea
¹Legume and Oil Crop Research Division, National Institute of Crop Science, Rural Development Administration, Miryang 627-803, Korea
²Evaluation Division, Rural Development Administration, Suwon 441-707, Korea
³Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Korea

Received: February 23, 2012 Revised: August 09, 2012 Accepted: August 10, 2012

Abstract

In July, 2009, proso millet (Panicum miliaceum), which showing the bacterial brown stripes on leaf sheaths, was collected in Miryang in Korea. Symptoms were systemic brown necrotic stripe lesions on the leaf sheaths and stems, and these symptoms were found in the entire field. The causal agent isolated from symptomatic plants was identified as an Acidovorax avenae subsp. avenae, based on its biochemical and physiological characteristics and also confirmed by the Biolog data and 16S rRNA gene sequence analysis. Also it caused hypersensitive response (HR) when it was inoculated onto the tobacco and tomato. It caused similar symptoms when inoculated onto proso millet. This is the first report of A. avenae subsp. avenae, the causal agent of bacterial brown stripe of the proso millet in Korea.

Key Words: Acidovorax avenae, Bacterial stripe, Panicum miliaceum