Confirmation of Coleosporium zanthoxyli on Zanthoxylum ailanthoides in Korea

Hyeon-Dong Shin1,*   Young-Joon Choi2   Chong-Kyu Lee3   Ho-Sang Lee4   Won-Il Choi4   

1
2Department of Biology, Kunsan National University,
3Department of Forest Resources, Gyeongnam National University of Science and Technology
4Warm-Temperate and Subtropical Forest Research Center, National Institute of Forest Science

Abstract

A previous record of Coleosporium phellodendri on Zanthoxylum ailanthoides in Korea by Korean researchers was regarded as C. zanthoxyli by foreign scientists without further studies. To clarify the identity of a Coleosporium species occurring on Z. ailanthoides in Korea, we examined the morphological characteristics of eight materials and analyzed the internal transcribed spacer (ITS) and 28S large subunit (LSU) rDNA regions of three representative specimens which were collected in Korea and deposited in the Mycological Herbarium at Korea University (Seoul, Korea). All specimens collected in Korea were morphologically and molecularly determined to be C. zanthoxyli . Therefore, this is the first confirmed report on the presence of C. zanthoxyli on Z. ailanthoides in Korea.

Figures & Tables

Fig. 1. occurring on . A, Symptoms appeared on the upper surface of the leaves. B, Uredinia formed on the lower surface of the leaves. C and D, Closeup view of erumpent uredinia. E and F, Urediniospores observed at different focal planes. G, Uredinium observed under scanning electron microscope. H and I, Urediniospores observed under scanning electron microscope.