• 식물병연구
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• 제29권1호
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• pp.11-22
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• 2023

Resazurin 기반 호흡 측정법으로 strobilurin계 살균제에 대해서 감수성인 고추탄저병균 Colletotrichum acutatum s. lat. 20JDS8에 대한 살균제의 호흡 억제 효과를 조사하였다. Potato dextrose broth에 병원균의 포자를 접종하고 배양하면서 시간별로 상대 형광값(relative fluorescence unit)을 조사한 결과, 12시간 후부터 상승하기 시작하여 24시간 후의 1×10⁴, 1×10⁵, 1×10⁶ spores/ml의 포자 접종구에서 상대 형광값은 1,965.5, 5,412.5, 10,061.0이었다. 병원균을 0, 6, 12, 24시간씩 배양 후에 공시한 살균제를 처리하고, 24시간 후에 상대 형광값을 조사하였다. Dithianon, isopyrazam, pyraclostrobin, fluazinam을 병원균의 포자(0시간), 포자 발아(6시간), 균사 생장(12시간) 단계에 처리할 경우, 각 살균제의 고농도에서 호흡을 90-100% 억제하였다. 하지만 병원균을 24시간 배양한 후에 살균제를 처리할 경우에는 호흡 억제 효과가 크게 감소하였다. Pyraclostrobin 저항성인 C. acutatum s. lat. 20CDJ6에 대해서 pyraclostrobin, azxoystrobin, trifloxystrobin, kresoxim-methyl을 병원균의 모든 생장 단계에 각각 처리하였을 때, 호흡에 대한 억제 효과는 매우 미미하거나, 나타나지 않았다.

• 대한약침학회지
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• 제15권4호
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• pp.42-51
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• 2012

Objectives: This study used the basic principle of Oriental medicine, the sovereign, minister, assistant and courier principle (君臣佐使論) to investigate the effects of the component of ONGABO, which is composed of Ginseng Radix (Red Ginseng), Angelica Gigantis Radix, Schisandrae Fructus, Cuscuta Semen and Curcumae tuber on the viability of HepG2 cells. Methods: Single and mixed extracts of the component of ONGABO were prepared by lypohilizing powder of Red Ginseng (6-year root from Kanghwa), Angelica Gigantis Radix, Schisandrae Fructus, Cuscuta Semen, Curcumae Tuber (from Omniherb Co., Ltd., Korea) at the laboratory of herbal medicine in Woosuk University and were eluted after being macerated with 100% ethanol for three days. The cell viability of HepG2 was determined by using an absorptiometric analysis with PrestoBlue (Invitrogen) reagent after the plate had been incubated for 48 hours. All of the experiments were repeated three times to obtain the average value and standard deviation. The statistical analysis was done and the correlation factor was obtained by using Microsoft Office Excel 2007 and Origin 6.0 software. Results: Although Ginseng Radix (Red Ginseng) and Schisandrae Fructus did not enhance the viability of HepG2 cells, they were shown to provide protection of those cells. On the other hand, Angelica Gigantis Radix decreased the viability of HepG2 cells significantly, Cuscuta Semen and Curcumae Tuber had a small or no effect on the viability of HepG2 cells. Conclusions: In the sovereign, minister, assistant and courier principle (君臣佐使論), Ginseng Radix (Red Ginseng) corresponds to the sovereign component because it provides cell protection effects, Angelica Gigantis Radix corresponds to minister medicinal because it kills cells, Schisandrae Fructus corresponds to the assistant medicinal to help red ginseng having cell protect effects. Cuscuta Semen and Curcumae Tuber correspond to the courier medicinal having no effect in cell viability in HepG2. We hope this study provides motivation for advanced research on the sovereign, minister, assistant and courier principle.