Agrobacterium rhizogenes strains이 배초향 모상근 유도와 Rosmarinic acid 생산에 미치는 영향
Influence of Different Strains of Agrobacterium rhizogenes on Hairy Root Induction and Rosmarinic Acid Production in Agastache rugosa Kuntze
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Agrobacterium rhizogenes 계통이 모상근 유도, 생장과 rosmarinic acid 생산에 미치는 영향을 알아보기 위하여 5 계통의 strain (13333, 15834, R1000, R1200, R1601)을 이용하여 조사한 결과 A. rhizogenes R1601이 가장 높은 72.9%의 모상근 유도율을 보였다. 모상근 유도시 모상근 발생 수와 길이 신장에 미치는 영향을 조사한 결과도 A. rhizogenes R1601으로 감염시킨 잎 조직에서 평균 5.4개의 모상근이 발생하였으며, 평균 2.0 cm의 길이 신장으로 가장 좋은 결과를 나타냈다. 다섯 계통의 A. rhizogenes감염으로부터 유도된 각각의 모상근의 생육은 서러 다른 양상을 보였으나 경향은 모상근유도 결과와 유사하였다. A. rhizogenes R1601 감염으로 유도된 모상근의 생육은 배양 2주후 건물중을 조사한 결과 13.5 g/l로 다른 계통에서 유도된 모상근 보다 생육이 양호하였으며, Rosmarinic acid 생산량도 22.6 mg/g D.W.로 다른 계통에 비하여 가장 높게 나타났다. A. rhizogenes R1601이 배초향 모상근 유도, 생육과 rosmarinic acid 생산에 가장 좋은 적합한 계통이었음을 알 수 있었다.
Abstract
Rosmarinic acid, an ester of caffeic acid with 3,4-dihydroxyphenyl lactic acid, is one of the main active constituents of Agastache rugosa Kuntze and has an astringent property, antioxidant capacity, anti-inflammatory activity, antimutagenic ability, antimicrobial capacity, and an antiviral property. Five different strains of Agrobacterium rhizogenes differed in their ability to induce Korean mint (Agastache rugosa Kuntze) hairy roots and also showed varying effects on the growth and rosmarinic acid production in hairy root cultures. A. rhizogenes R1601 is the most effective strain for the induction (72.90%), growth (13.50 g/l) and rosmarinic acid production (22.60 mg/g) in hairy root of Korean mint. Our results demonstrate that use of suitable strains of A. rhizogenes may allow study of the regulation of rosmarinic acid biosynthesis in hairy root cultures of Agastache rugosa.
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