Abstract
Erysiphe actinostemmatis is the only known powdery mildew fungus affecting Actinostemma lobatum (Cucurbitaceae) in Japan and China. Anamorph morphology was insufficiently described, and the phylogenetic placement of this species is unknown. To characterize E. actinostemmatis, eight Korean samples collected between 2007 and 2022 were morphologically examined, and the nucleotide sequences of the large subunit (LSU or 28S) gene and internal transcribed spacer (ITS) regions of rDNA were determined using three voucher specimens. Phylogenetic analyses revealed that E. actinostemmatis formed a distinct clade that diverged from the E. aquilegiae clade. In this study, the detailed morphological characterization of the anamorph, including conidial germination patterns and hyphal appressoria, and molecular phylogeny were discussed for the first time, and the sequences of the ITS and LSU genes were provided.
| Original language | English |
|---|---|
| Pages (from-to) | 221-226 |
| Number of pages | 6 |
| Journal | Korean Journal of Mycology |
| Volume | 53 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2025 Sept |
Bibliographical note
Publisher Copyright:© 2025 THE KOREAN SOCIETY OF MYCOLOGY. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http: //creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords
- Actinostemma tenerum
- conidial germination
- Cucurbitaceae
- Erysiphe communis
- Erysiphe polygoni
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Ecology
- Plant Science
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