Morphological and Molecular Characterization of Pseudocercospora chionanthi-retusi Causing Leaf Spot on Chionanthus retusus in Korea

In Young Choi, Lamiya Abasova, Joon Ho Choi, Hyeon Dong Shin

Research output: Contribution to journalArticlepeer-review

Abstract

Leaves of Chionanthus retusus were found to be damaged by leaf spot disease associated with a fungus in Iksan, Korea. Leaf spots were angular to irregular, vein-limited, scattered, 1-8 mm diameter, brownish-gray to dark brown when dry, with heavy fructification. The pathogen causes premature defoliation of C. retusus plant and was identified as Pseudocercospora chionanthi-retusi based on morphological and molecular-phylogenetic analyses. The phylogenetic tree was constructed using multi-locus DNA sequence data of partial actin (actA), partial translation elongation factor 1-alfa (tef1), partial DNA-directed RNA polymerase II second largest subunit (rpb2) genes, and internal transcribed spacer regions. Current study provides detail morphological description of P. chionanthi-retusi on C. retusus in Korea, with supports of phylogenetic analysis and pathogenicity test.

Original languageEnglish
Pages (from-to)57-60
Number of pages4
JournalResearch in Plant Disease
Volume28
Issue number2
DOIs
Publication statusPublished - 2022 Jun 1

Keywords

  • Cercosporoid fungi
  • Chinese fringe tree
  • Multi-locus DNA sequencing
  • Mycosphaerellaceae
  • Plant pathogen

ASJC Scopus subject areas

  • Biotechnology
  • Biochemistry
  • Molecular Biology
  • Agronomy and Crop Science
  • Plant Science

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