고랭지 산채류 경관농업을 위한 곰취 '다목이'와 혼식용 자생식물 선발

• 영문명: Selection of Native Plants for Mixed Planting with 'Damogy' Cultivar of Gomchwi as Wild Vegetable on Landscape Agriculture in Highland Area
• 발행기관: 한국자원식물학회
• 저자명: 유동림(Yoo, Dong-Lim) 김기덕(Kim, Ki-Deog) 서종택(Suh, Jong-Teak) 이영규(Lee, Yeong-Gyu) 백계령(Baek, Gye-Lyeong) 이계준(Lee, Gye-Jun) 권민(Kwon, Min) 유홍섭(Yu, Hong-Seob) 남정환(Nam, Jung-Hwan)
• 간행물 정보: 『한국자원식물학회 학술심포지엄』2018년도 춘계학술발표회, 58~58쪽, 전체 1쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2018.04.30

영문 초록

Panax ginseng Meyer (Korean ginseng) is in the spotlight of Oriental medicine and is proclaimed as the king of medicinal plants owing to its adaptogenic characteristics. Ginseng root rot is a devastating disease caused by the fungus, Ilyonectria mors-panacis that generally attacks younger roots (~2 years), leading to defects in root quality, ginsenoside accumulation and also life cycle of the plant. Hence, there is an indispensable need to develop strategies resulting in tolerance against ginseng root rot. In the present study, we evaluated the effect of silica nanoparticles(N-SiO2) in Panax ginseng during I. mors-panacis infection. Long term analysis (30 dpi) revealed a striking 50% reduction in disease severity index upon 1mM and 2mM treatment of N-SiO2. However, N-SiO2 did not have any direct antifungal activity against I. mors-panacis. Membrane bound sugar efflux transporter, SWEET (Sugars Will Eventually be Exported Transporters) was identified in ginseng and as expected, its expression was suppressed upon N-SiO2 treatment in the root rot pathosystem. Furthermore, the total and reducing sugars in the apoplastic fluid clearly revealed that N-SiO2 regulates sugar efflux into apoplast. In a nut shell, N-SiO2 administration induces transcriptional reprogramming in ginseng roots, leading to regulated sugar efflux into apoplast resulting in enhanced tolerance against I. mors-panacis.

키워드

Panax ginseng Silica nanoparticles Ginseng root rot Ilyonectria mors-panacis