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Pucciniastrum hydrangeae-petiolaris, a Newly Found Rust Fungus on Hydrangea petiolaris in Korea

국내 미기록 등수국 녹병균 Pucciniastrum hydrangeae-petiolaris

  • Lee, Jae Sung (Department of Biology, Kunsan National University) ;
  • Choi, Young-Joon (Department of Biology, Kunsan National University) ;
  • Choi, Byoung-Ki (Warm-Temperate and Subtropical Forest Research Center, National Institute of Forest Science) ;
  • Jung, Bok-Nam (Division of Forest Insect Pests and Diseases, National Institute of Forest Science) ;
  • Park, Ji-Hyun (Division of Forest Insect Pests and Diseases, National Institute of Forest Science) ;
  • Shin, Hyeon-Dong (Division of Environmental Science and Ecological Engineering, Korea University)
  • 이재성 (국립군산대학교 생물학과) ;
  • 최영준 (국립군산대학교 생물학과) ;
  • 최병기 (국립산림과학원 난대.아열대산림연구소) ;
  • 정복남 (국립산림과학원 산림병해충연구과) ;
  • 박지현 (국립산림과학원 산림병해충연구과) ;
  • 신현동 (고려대학교 환경생태공학부)
  • Received : 2021.01.07
  • Accepted : 2021.03.12
  • Published : 2021.03.31

Abstract

Hydrangea petiolaris, belonging to the family Hydrangeaceae, is a vine plant distributed in Ulleung, Jeju, and other southern islands of Korea. In October 2017, a rust fungus was discovered on H. petiolaris in Jeju Island, Korea. To identify the rust fungus, we performed a morphological examination and molecular phylogenetic analysis of the internal transcribed spacer and 28S large subunit rDNA sequences. As a result, the fungus was identified as Pucciniastrum hydrangeae-petiolaris, consistent with previous reports from Japan and Russia, but showed a significant phylogenetic distance from Pucciniastrum hydrangeae reported on Hydrangeae spp. in North America. This is the first record of P. hydrangeae-petiolaris on H. petiolaris in Korea.

등수국은 수국과에 속하는 덩굴성 식물로 우리나라의 울릉도, 제주도, 남해안 섬에 분포한다. 2017년 10월 제주도에서 등수국에 발생하는 녹병균을 국내 최초로 발견하였다. 등수국 녹병균을 동정하기 위해, 형태적 특성을 조사하고 internal transcribed spacer (ITS) 및 28S large subunit (LSU) rDNA의 염기서열의 분자계통학적 분석을 수행하였다. 그 결과, 한국의 등수국 녹병균은 일본과 러시아에서 보고된 Pucciniastrum hydrangeae-petiolaris의 형태적 및 분자계통학적 특징과 일치하였으며, 북미에서 보고된 P. hydrangeae와는 상당히 먼 계통학적 관계를 보였다. 본 연구는 한국의 등수국에서 녹병균 P. hydrangeae-petiolaris의 첫 보고이다.

Keywords

Acknowledgement

This study was supported by a National Academy of Agricultural Science grant (PJ0149560112020) from the Rural Development Administration and the National Institute of Forest Science (FE0100-2018-01).

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