Confirmation of Coleosporium zanthoxyli on Zanthoxylum ailanthoides in Korea

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.