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Genetic Variations in Korean Wild Ginsengs and Their Genetic Relationships
황혜진,연민지,성지연,박하영,김수옥,전형욱,김근종,최강준,이용진,서동상 한국유전학회 2006 Genes & Genomics Vol.28 No.2
Genetic diversity and genetic relationships were investigated in wild ginsengs collected from various natural habitats in South Korea using RAPD techniques. The UPGMA dendrogram established from the RAPD data demonstrated that the genetic diversity of wild ginsengs was more profound than that of cultivated variants. These differences in RAPD profiling were from their genomic sequence variation, supported by sequence analyses on the commonly amplified bands from wild and cultivated ginseng. Considering that ginseng is a self-pollinated and long-isolated fossil plant, which has not changed its shape appreciably throughout evolution, this diversity among ginseng plants grown in different locations and under different conditions was expected to some degree. Based on the sequence data, we conclude that one wild ginseng accession had been isolated for over 19 million years. In this report, we suggest that Korean wild ginseng has remarkable genetic diversity as compared with commercial Korean ginseng, and urge that measures be taken to conserve this endangered plant from reckless exploitation and possible extinction.
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우현준 ( Hyun Jun Woo ),이민호 ( Min Ho Lee ),양지영 ( Ji Yeong Yang ),권혜진 ( Hye Jin Kwon ),연민지 ( Min Ji Yeon ),김도현 ( Do Hyun Kim ),문철 ( Cheol Moon ),박민 ( Min Park ),김사현 ( Sa-hyun Kim ),김종배 ( Jong-bae Kim ) 한국미생물생명공학회(구 한국산업미생물학회) 2017 한국미생물·생명공학회지 Vol.45 No.3
요소가수분해효소는 요소를 암모니아와 이산화탄소로 가수분해하는 효소로 요로감염을 일으키는 세균의 주요 병원성 인자이다. 따라서 요소가수분해효소는 세균이 요로감염증을 유발하는데 중요한 역할을 한다. 본 연구에서는 요소가수분해효소를 생성하는 6가지 종류의 세균에 (K. oxytoca, K. pneumoniae, M. morganii, P. mirabilis, P. vulgaris, S. saprophyticus) 대한 제럼본의 억제효과와 요소가수분해효소 활성능을 평가하였다. 최소억제농도와 최소살균농도 실험에서 제럼본은 요소가수분해효소를 생성하는 6가지 종류의 세균에 대해 억제효과를 보였으며, 최소억제농도는 0.5-2 mM, 최소살균농도는 1-4 mM를 나타내었다. 요소가수분해 활성억제 실험에서 제럼본은 요소가수분해효소의 억제제로 사용하는 아세토히드록사민산 보다 뛰어난 요소가수 분해 활성억제효과를 보였다. 그러나 제럼본은 요소가수분해효소를 이루는 소단위체의 발현양에는 영향을 주지 않았다. 이러한 결과들을 종합하여 볼 때, 제럼본은 요소가수분해효소를 생성하는 세균에 대한 살균력을 가질 뿐 만 아니라 훌륭한 요소가수분해 활성억제력도 보유하고 있는 것으로 사료된다. A key virulence factor for urinary tract pathogens is the enzyme urease, which catalyzes the hydrolysis of urea into ammonium ions and carbonic acid. Urease activity plays an important role in the pathogenesis of urinary tract infection. In this study, the inhibitory effect of zerumbone against six urease-producing bacteria (Klebsiella oxytoca, K. pneumoniae, Morganella morganii, Proteus mirabilis, P. vulgaris, and Staphylococcus saprophyticus) and their urease activities were evaluated. The results of the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) tests showed that zerumbone had antibacterial effect against these six urease-producing bacteria. The MIC and MBC of zerumbone ranged from 0.5 to 2 mM and 1 to 4 mM, respectively. In the urease inhibitory assay, zerumbone showed better urease inhibition (56.28 ± 2.45-37.83 ± 3.47%) than the standard urease inhibitor, acetohydroxamic acid (40.46 ± 1.94 - 22.99 ± 3.53%). However, zerumbone did not affect the levels of the urease subunit. These results clearly indicated that zerumbone has antibacterial potential against urease-producing bacteria and possesses excellent bacterial urease inhibition properties.
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