title: First Report of Leaf Spot Caused byAlternaria tenuissimaon Black Chokeberry (Aronia melanocarpa) in Korea.
abstract: In July 2015, diseased leaves of black chokeberry (Aronia melanocarpa) were observed in Danyang and Gochang, Korea. The symptoms appeared as circular or irregular brown leaf spots, from whichAlternaria tenuissimawas isolated. The isolates were cultured on potato dextrose agar, and their morphological characteristics were observed under a light microscope. The colonies were whitish to ash colored. The pathogenicity test on healthy black chokeberry leaves produced circular brown spots, in line with the original symptoms. Molecular analyses of the ITS, GPD, RPB2, and TEF genes were conducted to confirm the identity of the pathogen. The phylogeny of the multi-gene sequences indicated that the causal agent wasA. tenuissima. This study is the first report ofA. tenuissimaleaf spot on black chokeberry (A. melanocarpa).
authors: Horticultural and Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, Wanju 55365, Korea.; Marine Microorganism Team, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea.
authors: Jung-In
authors: JI
authors: Wee
authors: Horticultural and Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, Wanju 55365, Korea.
authors: Jong-Han
authors: JH
authors: Park
authors: Horticultural and Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, Wanju 55365, Korea.
authors: Chang-Gi
authors: CG
authors: Back
authors: Marine Microorganism Team, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea.
authors: Young-Hyun
authors: YH
authors: You
authors: School of Ecology & Environmental System, College of Ecology & Environmental Sciences, Kyungpook National University, Sangju 37224, Korea.
authors: Taehyun
authors: T
authors: Chang
keywords: Alternaria leaf spot; Aronia melanocarpa; Black chokeberry leaf spot