Puccinia klugkistiana, a Rust Fungus Occurring on Cleistogenes hackelii in Korea

Jae-Sung Lee1   Young-Joon Choi1,*   In-Young Choi2,3   Chong-Kyu Lee4   Hyeon-Dong Shin5,*   

1Department of Biology, Kunsan National University, Gunsan 54150, Korea
2Department of Agricultural Biology, Jeonbuk National University, Jeonju 54896, Korea
3Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju 54896, Korea
4Department of Forest Resources, Gyeongsang National University, Jinju 52725, Korea
5Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Korea


Rust samples at both uredinial and telial stages were collected from Cleistogenes hackelii (Poaceae) in 2017 and 2019 in Korea. Based on the morphological examination and molecular phylogenetic analyses of the internal transcribed spacer (ITS) and large subunit (LSU) rDNA, it was identified as Puccinia klugkistiana. This rust at aecial stage has previously been recorded on Ligustrum japonicum (Oleaceae) in Korea. Puccinia diplachnicola has been previously recorded on C. hackelii in Korea; however, it is believed to be unrelated to the rust collected in the present study. Conclusively, this is the first study to report P. klugkistiana occurrence on C. hackelii in Korea.

Figures & Tables

Fig. 1. on . A: Rust symptoms on the leaf surface. B: Uredinia on the leaf surface. C: Telia on the leaf surface. D: Coexistence of uredinia (U) and telia (T). E: Erumpent telia. F: Urediniospores (u), immature (it) and mature (mt) teliospores observed under a light microscope. G and H: A telium with a group of teliospores (G) and close-up of teliospores (H) observed under a scanning electron microscope.