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...
Saved in:
Published in | Sigmulbyeong yeon'gu Vol. 28; no. 2; pp. 57 - 60 |
---|---|
Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
한국식물병리학회
01.06.2022
Hanrimwon Publishing Company |
Subjects | |
Online Access | Get full text |
Cover
Loading…
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 (ef1A), 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. |
---|---|
ISSN: | 1598-2262 2233-9191 |
DOI: | 10.5423/RPD.2022.28.2.57 |