Integrated Korean Flora Database: A Versatile Web-based Database for Dissecting Flora Investigations

• 영문명: Integrated Korean Flora Database: A Versatile Web-based Database for Dissecting Flora Investigations
• 발행기관: 한국자원식물학회
• 저자명: Yeon, Jihun Kim, Yongsung Kim, Hyejeong Kim, Juhyun Park, Jongsun
• 간행물 정보: 『한국자원식물학회 학술심포지엄』2018년도 춘계학술발표회, 16~16쪽, 전체 1쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2018.04.30

영문 초록

Panax ginseng Meyer is a perennial medicinal plant, the roots of which has been used in the traditional formulations in Oriental countries. To understand its floral transition, we isolated Flowering Locus T (FT) from ginseng, the bioinformatics analysis of PgFT has revealed a considerable homology to the higher plants, with the essential amino acids for FT function are conserved. The phylogenetic analysis has shown that the PgFT is belonged to the shrub classes of plants and closest kin to Jatropha curcas FT. The expression profiling from juvenile (2-year-old) were abundant in leaves as well as in root and was concentrated in the secondary leaflet and stem bottom in adult (4-year-old) ginseng plant tissues, moreover PgFT transcript displayed photoperiod dependent oscillation. The ectopic expression of PgFT in Arabidopsis thaliana, exhibit precocious flowering and several floral pathway integrators were up-regulated, interestingly their root length was increased in the transgenic seedlings. Therefore, we could conclude that PgFT encodes a florigen that acts as a key regulator in the flowering pathway in ginseng and hypothesize that, it might involve in the underground organ development as well. We believe our finding could provoke future studies on the physiology and development in P. ginseng.

키워드

FT Panax ginseng Perennials Root growth Floral transition