Mycobiology.  2017 Mar;45(1):39-43. 10.5941/MYCO.2017.45.1.39.

Identification and Characterization of Pseudocercospora pyricola Causing Leaf Spots on Aronia melanocarpa

• Park SH
• Choi IY
• Seo KW
• Kim JH
• Galea V
• Shin HD

• KMID: 2376163
• DOI: http://doi.org/10.5941/MYCO.2017.45.1.39

Abstract

Leaf spot disease on black chokeberry (Aronia melanocarpa) was observed at several locations in Korea during 2014-2015. Leaf spots were distinct, scattered over the leaf surface and along the leaf border, subcircular to irregular and brown surrounded by a distinct dark color, and were expanded and coalesced into irregularly shaped lesions. Severely infected leaves became dry and fell off eventually. The causative agent was identified as Pseudocercospora pyricola. Morphological observations and phylogenetic analyses of multiple genes, including internal transcribed spacer, translation elongation factor 1-alpha, actin, and the large subunit ribosomal DNA were conducted. The pathogenicity test was conducted twice yielding similar results, fulfilling Koch's postulates. To our knowledge, this is the first report on P. pyricola infection of A. melanocarpa globally.

Keyword

Aronia melanocarpa; Multigene phylogenetic analysis; Mycosphaerella; Pseudocercospora leaf spot; Pseudocercospora pyricola

MeSH Terms

Actins
DNA, Ribosomal
Korea
Peptide Elongation Factors
Photinia*
Virulence
Actins
DNA, Ribosomal
Peptide Elongation Factors