고추 (Capsicum annum L.)식물체 및 배양세포의 Capsidiol 생산 유도

권순태,정은아,박해영,손건호 한국식물생명공학회 2001 식물생명공학회지 Vol.28 No.5

고추 (Capsicum annum L.)의 잎, 과실 및 배양세포를 대상으로 capsidiol의 생산을 유도하기 위해 자외선, cellulase 및 jasmonic acid (JA)의 영향을 구명하였다. 배양세포는 cellulase 0.05 mg/L나 JA 0.1 mg/L처리로 세포의 capsidiol 생산을 위한 유도가 가능하였다. Elicitor를 처리한 배양세포는 자체 생성한 capsidiol의 독성에 의해 활력이 급격히 감소하여 48시간 이후에는 세포활력을 거의 잃어버리는 것으로 나타났다. 자외선 스트레스의 처리는 48시간의 처리로 고추 잎의 capsidiol의 함량을 최고 45.4배까지 증가시켰다. Cellulase 0.05 mg/L또는 JA 1.0mg/L를 식물의 잎 표면이나 과실의 기부에 미세주사기로 주입하면, 잎은 elicitor를 주입한 부위로부터 합성된 capsidiol의 독성으로 병반이 확대되어 가는 것을 관찰할 수 있었으며, 과실에서도 elicitor의 주입에 의해 병반이 확산되며 elicitor를 주입한 과실에서 capsidiol의 생성이 확인되었다. Effects of ultraviolet stress and elicitors, cellulase and jasmonic acid (JA), for the production of capsidiol, sesquiterpenoid phytoalexin, in seedlings and suspension cultures of pepper (Capsicum annum L. cv, Soobicho) were examined. Extracellular capsidiol in the medium of suspension cultures was absent from control cells, but accumulated in the elicitor treated cells with 0.05 $\mu\textrm{g}$/mL of cellulase or 0.1 $\mu\textrm{g}$/mL JA. Elicited cells gradually decreased their viability and eventually died within 48 hours of elicitor treatment by the toxicity of capsidiol accumulated in the culture medium. Capsidiol production in the leaves of pepper seedlings was markedly increased by the treatment of ultraviolet stress and reached maximum level at 48 hours of irradiation. Infiltration of elicitors, 0.05 $\mu\textrm{g}$/mL cellulase or 1.0 $\mu\textrm{g}$/mL JA, to the surface of leaf or fruit, stimulated the elicitation of the cells which resulted in the production of capsidiol and expansion of pathogene-like lesion around the elicitor treated region.

야생식물 Sicyos angulatus L.로부터 캘러스 유도 및 체세포배 발생

권순태,조문수 한국식물생명공학회 1998 식물생명공학회지 Vol.25 No.2

In order to investigate the possibility of in vitro mass propagation via somatic embryogenesis from Sicyos angulatus L., effects of plant growth regulators and carbon sources on callus induction and somatic embryogenesis were evaluated. Optimal combinations of plant growth regulator for callus induction from cotyledon and inflorescence explants were 2,4-D 2.0 mg/L + BA 0.1 mg/L and 2,4-D 1.0 mg/L + BA 0.1 mg/L in MS basal medium supplemented with sucrose 30 g/L,, respectively. Somatic embryogenesis was observed from cultured inflorescence explants, but it could not be achieved from leaf or cotyledon explants. The most effective plant growth regulators for somatic embryogenesis from callus was NAA 1.0 mg/L + kinetin 10 mg/L in the half strength of MS basal medium supplemented with 20 g/L sucrose. 박과식물과 우수한 접목친화성을 가진 것으로 알려진 야생식물인 Sicyos angulatus L.(일명 '안동오이')의 화기, 자엽 및 잎 조직을 배양하여 캘러스유도 및 체세포배의 획득 가능성을 밝히고 기내배양에 의한 묘의 대량증식에 필요한 기초자료를 얻고자 본 실험을 수행하였다. 자엽이나 화기 절편체로부터 캘러스유도를 위한 가장 적합한 식물생장조절제는 MS 배지에 각각 2,4-D 2.0㎎/L + BA 0.1 ㎎/L와 2,4-D 1.0㎎/L + BA 0.1 ㎎/L를 첨가한 것이었다. 잎 및 자엽 절편체로부터는 체세포배 발생이 되지 않았으나 화기 절편체에서는 체세포배 발생이 관찰되었다. 화기로부터 유래한 캘러스를 NAA 1.0 ㎎/L+ kinetin 1.0 ㎎/L가 첨가된 1/2 MS기본배지에 배양하면 가장 효율적으로 체세포배를 획득할 수 있었고, 탄소원으로는 sucrose 20 g/L가 가장 효율적이었다.

고자기장 처리가 벼 유묘생장과 배양세포 재분화 및 단백질 이차원 전기영동패턴에 미치는 영향

권순태,오세명 한국육종학회 1994 한국육종학회지 Vol.26 No.1

벼 (Oryza sativa L.)배양세포의 고중력유도성 cDNA의 탐색

권순태,김길웅,Kiyoharu OONO 한국식물생명공학회 1994 식물생명공학회지 Vol.21 No.2

벼(Oryza sativa L. cv Nipponbaie)배양세포에 중력 450,000 x g를 처리하여 cDNA library를 만들고, 무처리 및 고중력을 처리한 cDNA 프로브로 스크리닝을 실시하여 고중력에 특이적으로 양성반응을 나타내는 GSC 13 및 GSC124 cDNA를 선발하였다. 선발된 두 유전자 GSC 13 및 GSC 124의 길이는 각각 1.34 및 0.67 kilobase pairs였으며, 배양세포내에서 관련된 transcript의 크기는 각각 2.0 및 1.9 kilobase pairs인 것으로 나타났다. 두 유전자를 프로브로한 Northern hybridization을 실시한 결과 GSC 13, GSC 124 공히 배양세포내에 고중력처리에 의해 특이적으로 축적되는 mRNA가 나타났으며, 중력강도 300,000 x g 에 비해 450,000 x g 처리에서 더욱 강한 축적을 보였고 450,000 x g 4시간 처리에서 최대의 수준을 보였다. Two different gravity specific cDNA, namely, GSC 13 and GSC 124 with length of 1.34 and 0.67 kilobase pairs, and transcripts of 2.0 and 1.9 kilobase pairs, respectively. were isolated by differential screening and northern hybridization of the total RNA isolated from treated and untreated cultured cells showed that maximum levels of trannscripts were achieved after 4 h of gravity stress at 450, 000 x g for both, GSC 13 and GSC 124, suggesting that these mRNA could be expressed and translated into polyeptites related to the cell to extream gravity stress.

Superoxide dismutase의 활성차이에 따른 식물세포의 paraquat에 대한 반응과 핵 DNA 손상 검정

권순태,이명현,오세명,정도철,김길웅 한국생명과학회 2004 생명과학회지 Vol.14 No.4

This study was undertaken to investigate the different responses of cultured plant cells to paraquat treatment and nucleus-DNA damage in relation to enzyme activity of superoxide dismutase (SOD). Furthermore, this study was also carried out to understand the antioxidative mechanism of plant cells to environmental stress. We selected two different species of plant cultured cells, Ipomoea batatas as high-SOD species and Lonicera japonica as low-SOD species. The total activity and specific activity of SOD in a chlorophyllous cell of I. batatas were 3,736 unit/gㆍfresh weight and 547 unit/mgㆍprotein, respectively, and those in L. japonica were 23 unit/gㆍfresh weight and 13 unit/mgㆍprotein, respectively SOD activity in chlorophyllous I. batatas cells reached its maximum level at 10 to 15 days after subculture, whereas that in L. japonica remained at a very low SOD level during the whole period of subculture. In comparison to L. japonica, I. batatas, a high-SOD species, showed high tolerance to paraquat 10 and 50 mg/l treatment in terms of cell viability and electrolyte leakage. Based on the result of comet assay, the nucleus-DNA damage of two species by paraquat 50 mg/l treatment was not significantly different. However, I. batatas cells repaired their damaged DNA more effectively than the cells of the low-SOD species, L. japonica.

방사선처리가 고추의 생육과 항산화 효소의 활성에 미치는 영향

권순태,정은아,김재성 한국생명과학회 2001 생명과학회지 Vol.11 No.6

Seedlings of red pepper (Capsicum annum L.) were exposed to various doses of ${\gamma}$-radiation )($^{60}$ Co)and cultivated in the 1/2,000 a pot. Plant hight the number of leaves, flowers and fruits, chlorophyll contents, plant dry weight, ac- tivites of antiozidant enzymes such as superoxide dismutase(SOD) adn peroxidase(POD), were determined. Plant height of seedling treated with 1 Gy of ${\gamma}$-radiation was increased up to 16.6% as compared to untreated control at 80 days after treatment, while those treated with 20 Gy or 50 Gy was decreased 22.0% or 75.0% respectively. The plants treated with 1 Gy or 5 Gy were increased the number of leaves up to 41.2% and 24.9% as well as dry weight of fruit up to 58.4% and 49.4% respectively. However treatment of radiation higher than 20 Gy significantly inhibited the growth, chlorophyll content and yield of pepper fruit. Activities of antioxidant enzymes, SOD and POD were tem-porary increased within one or five days after treatment depending on the doses of treatment , and the activities were gradually decreased to control level of lower thereafter. The SOD and POD activities in the leaves of pepper plant treated with 50 Gy were 5.5 and 6.0folds higher than that of control at five days after treatment, respectively.

시호의 약배양의 통한 배발생 및 재분화

권순태,정형진,김길웅 한국생명과학회 2001 생명과학회지 Vol.11 No.4

Effects of growth regulators(2,4-D, IAA, NAA, BA and kinetin) and chilling treatment on callus induction. embryogenesis and regeneration through anther cultures of B. falcatum L. were examined. Frequency of callus induction and embryogenesis was effectively increased by the treatment of chilling at 5$^{\circ}C$ for 10 days before anther inoculation. Optimal level of growth regulator for callus induction and embryogenesis from anther was 2,4-D 1.0 mg/L in Murashige and Skoog(MS) basal medium supplemented with 30 g/L sucrose, 8 g/L agar. Frequency of embryogenesis from anther derived callus was increased up to 48% or 45% by addition of IAA 0.1+ kinetin 1.0 mg/L of IAA 0.1+ BA 1.0 mg/L in MS medium, respectively, Optimal medium for obtaining green callus was MS basal supplemented with BA 1.0mg/L. Addition of auxins(IAA or NAA) inhibited the formation of green callus from anther derived callus.

Up Band CDMA 실험기지국을 위한 PLL Synthesizer의 설계 ( Design of PLL Synthesizer for Up-Band CDMA Test Bed )

권순태,임재봉,조흥구,이성재 대한전자공학회 1996 대한전자공학회 학술대회 Vol.1996 No.1

급성 횡문근융해의 자기공명영상 소견: 증례 보고

권순태,조강희,Gwon, Sun-Tae,Jo, Gang-Hui 대한영상의학회 2003 대한영상의학회지 Vol.49 No.2

Rhabdomyolysis is an acute disorder resulting from skeletal muscle injury in which intracellular contents are released into extracellular space and plasma. The condition may result from drug or alcohol overdose, infection, crush injuries, collagen disease, or intensive exercise. We report two cases of acute rhabdomyolysis resulting from CO poisoning and alcohol overdose, and discuss the MRI and ultrasonographic findings

회음부 연부조직에 발생한 염증성 근섬유모세포종:1예보고

권순태,김종철,Gwon, Sun-Tae,Kim, Jong-Cheol 대한영상의학회 2001 대한영상의학회지 Vol.45 No.4

Inflammatory myofibroblastic tumor is a rare benign condition of unknown etiology, and it may simulate malignancy. It is composed of myofibroblast, plasma cells and histiocytes and is found in lung, the liver, orbit, skin, mesentery, retroperitoneum and maxillary sinus. We report a case of inflammatory myofibroblastic tumor of perineal subcutaneous fat in a 35-year-old woman who complained of a palpable mass. Ultrasonography revealed a well-marginated lobulated hypoechoic lesion with peripheral poorly-defined hyperechoic strands in the subcutaneous fat of the right perineum. The lesion demonstrated low signal intensity on T1-weighted images and of heterogenous high signal intensity on T2-weighted images, compared with surrounding muscle. After intravenous injection of gadolinium, it showed clear homogeneous enhancement but poorly-defined adjacent strands. The final histologic diagnosis was inflammatory myofibroblastic tumor.