Mycobiology.  2016 Sep;44(3):187-190. 10.5941/MYCO.2016.44.3.187.

First Report of Leaf Spot Caused by Alternaria tenuissima on Black Chokeberry (Aronia melanocarpa) in Korea

• Wee JI
• Park JH
• Back CG
• You YH
• Chang T

• KMID: 2354756
• DOI: http://doi.org/10.5941/MYCO.2016.44.3.187

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 which Alternaria tenuissima was 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 was A. tenuissima. This study is the first report of A. tenuissima leaf spot on black chokeberry (A. melanocarpa).

Keyword

Alternaria leaf spot; Black chokeberry leaf spot; Aronia melanocarpa

MeSH Terms

Agar
Alternaria*
Glucose
Korea*
Photinia
Phylogeny
Solanum tuberosum
Virulence
Agar
Glucose