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

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 defolia...

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Bibliographic Details
Published inSigmulbyeong yeon'gu Vol. 28; no. 2; pp. 57 - 60
Main Authors 최인영(In-Young, Choi), Lamiya Abasova, Joon-Ho Choi, Hyeon-Dong Shin
Format Journal Article
LanguageKorean
Published 한국식물병리학회 30.06.2022
Subjects
Multi-locus DNA sequencing
Cercosporoid fungi
Chinese fringe tree
Mycosphaerellaceae
Plant pathogen
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Summary: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.
Bibliography:KISTI1.1003/JNL.JAKO202219353607097
ISSN:1598-2262
2233-9191