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붉나무충영의 배양조직에서 생육 및 tannin 축적에 미치는 indole-3-acetic acid 의 역할
소상섭(Sang Sup So),허명자(Ming Zi Xu),오인숙(In Suk Oh) 한국환경생물학회 2001 환경생물 : 환경생물학회지 Vol.19 No.4
N/A These studies were carried out to examine the developmental process of galls caused by aphids in Rhus javanica and the effects of indole-3-acetic acid(IAA) and α-naphthalene acetic acid(NAA) on the tannin accumulation in the callus induced from that galls. The results are follows. The development of fist-shaped galls has begun at the beginning of June earlier than the case of finger-shaped galls, and also, the growth of fist-shaped galls has lost to September longer than the period of finger-shaped galls. These results indicate that the life cycle and feeding activity of the aphids inhabited in fist-shaped galls were longer and more active than the case of the aphids inhabited in finger-shaped galls. Tannin contents of fist-shaped galls revealed about 60∼70% of total dry weights during the whole growth periods, however, the contents in finger-shaped galls were under 10% at the maximum value. These facts mean that finger-shaped galls seem to be as a habitat of aphids rather than as a major source of tannin such as fist-shaped galls. The growht of callus induced from fist-shaped galls was the most effective in the plot of 10^-5 mole IAA, but the tannin accumulation in callus growth was not even caused in any plots of IAA treatments as wells as in any NAA plots. Thses results considered that the tannin accumulation in fist-shaped galls may be caused only in specific relation between host plant and life cycle of aphids.
느티나무에서 면충에 의한 충영형성과 아미노산종과의 연관성
소상섭(Sang Sup So),엄미정(Mi Jeong Uhm),오인숙(In Suk Oh),김환규(Hwan Gyu Kim) 한국환경생물학회 2001 환경생물 : 환경생물학회지 Vol.19 No.4
N/A After investigating the developmental process of galls forming on leaf of Zelkova serrata and analyzing the composition and contents of the free amino acids in leaves, galls and haemolymph of aphids, we have come to the following results. Galls induced were mostly distributed on the middle or lower part of leaf to the petiole along vein and most of investigated leaves had one gall only. The growth of galls continued in length and width until Paracolopha morrisoni habitants which transformed into alate adult left the gall. These results also indicated that galls are closely connected with a portion of plant tissues as well as foods and habitats of aphids. 26∼29 kinds of free amino acids such as proline, alanine and valine and so on, detected in leaves, gall and haemolymph of aphids. The composition of free amino acids were similar in three materials examined, but proline and asparatic acid showed the highest quantity in the leaves and galls, respectively. In case of aphids, alanine was extremely higher as 18.4% of total contents of free amino acids, in 1st instar of fundatrix stage. Total contents of free amino acids in the apteral adult stage of aphid were also increased than in the 1st instar stage. This investigation implies that nitrogen source such as free amino acids is apparently a major growth-material like carbohydrates during development of galls in Zelkova serrata.
담배식물체에서 스트레스에 따른 Matrix Metalloproteinase의 활성
오인숙,소상섭,Oh, In-Suk,So, Sang-Sup 한국식물생명공학회 2004 식물생명공학회지 Vol.31 No.4
MMPs는 $Zn^{2+}$-의존성 endopeptidase로서 세포외 기질을 분해하는 능력을 갖고 있다. 본 연구에서는 담배식물체에서 잎의 발생단계별로 분비되는 MMPs의 활성과 환경 스트레스에 의한 MMPs의 활성을 조사하였다. 그 결과 MMPs의 활성은 기부 부위의 완전히 성숙한 잎보다 엽신의 확장이 일어나고 있는 어린잎에서 높았다. 이는 식물체에서 잎 신장을 위한 세포내 공간 형성 및 조직재구성에 MMPs가 중요한 단백질분해효소로 작용함을 시사하였다. 또한 환경 스트레스에 대한 반응으로서 MMPs의 활성을 조사한 결과 염처리와 병원균 감염에 의해 각각 1.2배와 1.5배의 증가를 보였다. 이러한 결과는 식물체가 발생단계 외에도 불리한 환경에 대한 방어 수단으로 MMPs가 생성 분비함을 알 수 있었다. Matrix metalloproteinases (MMPs) are zinc-dependent endopeptidases produced by a variety of cell type, and have a fundamental role in the degradation and remodeling of extracellular matrix. In this study, we screened the secretion of MMPs in leaves of different developmental stages and in response to environmental stress using tobacco. Compare with fully maturing leaves and older leaves, the rate of MMPs activity was high in expanding and younger leaves. It is tempting to speculate that MMPs may be involved in tissue modeling, which must occur during leaf expansion. The MMPs activity in tobacco leaves grown in the presence of stressors showed a significantly increase at salinity treatment and pathogen infection. The MMPs activity in salinity and pathogen treatment increased respectively, by 1.2- and 1.5-fold with respect to the control. These results suggest that MMPs may be involved in plant defence against adverse environment and pathogenic infection.
강영희(Yong Hee Kang),소상섭(Sang Sup So) 한국식물학회 1975 Journal of Plant Biology Vol.18 No.2
Three varieties of soybean, Chungtaik, Hillkong, and Endaedu which have been recommended to cultivate widely in Cheju Island, were chosen to study their amino acid metabolism in order to determine their nuritional values. 1) The total nitrogen contents of these soybeans were decreased in the order of Chungtaik, Hillkong, and Endaedu, indicating that the last variety is undesirable for a recommend formae even under a favorable condition of cultivaiton. The Hillkong variety may well be recommended for cultivation for a source of lipid rather than protein. 2) From analysis of free amino acids, it was found that Hillkong contained normal amount of various amino acids but Endaedu contained them in very abnormal fashion suggesting that an improved scheme of fertilization is necessary. Data from Chungtaik indicated it was excessively supplied with N fertilizer. 3) The amino acid contents of proteins extracted from these soybeans showed that Chungtaik contained less number of amino acids in its protein than the other two. The distribution of these amino acids appeared normal in Hillkong but quite irregular in Endaedu. In conclusion, both Chungtaik and Hillkong could be recommended for cultivation, the former as a protein source, the latter a lipid source of foods. Endaedu, however, may be liable to further research before it will be recommend for cultivation.
백두산 자생 참돌꽃의 생육과 이용 - 1. 배양세포 유도와 유리아미노산 조성 -
오인숙 ( In Suk Oh ),소상섭 ( Sang Sup So ),허명자 ( Ming Zi Xu ) 한국환경생물학회 2004 환경생물 : 환경생물학회지 Vol.22 No.1
본 실험은 백두산 자생 참돌꽃의 발아조건과 종자, 유식물 및 뿌리유래 캘러스의 유리 아미노산 조성과 함량을 조사하여 다음과 같은 결과를 얻었다. 뿌리로부터 캘러스 유도는 2,4-D 및 NAA가 첨가된 MS배지에서 유도되었다. 캘러스 형성율은 2,4-D 2.0 mg L^(-1)에 kinetin 1.0mg L^(-1) 혼용 처리구가 NAA 2.0 mg L^(-1)에 kinetin 1.0 mg L^(-1) 혼용 처리구보다 캘러스 형성율이 높았다. 유리 아미노산은 종자, 줄기, 뿌리 그리고 캘러스에서 aspartic acid, glutamic acid, serine 및 g1ycine 등의 25~26종이 검출되었으며 종자, 줄기 그리고 뿌리부위에서는 lysine이 가장 많은 양을 나타냈으며 캘러스에서는 histidine이 높은 양을 나타냈다. 전체적인 유리아미노산 분포는 lysine, histidine 및 arginine의 함량이 높아 참돌꽃 유식물 및 캘러스의 경우 염기성 아미노산의 분포가 높은 식물임을 알 수 있었다. 또한 총 유리 아미노산 함량은 종자와 뿌리, 줄기에 비해 캘러스에서 신선중 g당 500~1,000μmole 정도 높아 우수한 약리작용을 지니고 있는 참돌꽃의 성분을 배양세포를 통하여 대량생산이 가능함을 시사하고 있다. This study was carried out to investigate the callus formation and to deter-mine the composition and contents of the free amino acids in seedlings and callus of Rhodiola sachalinensis. The callus formation from the part of seedling-roots was the most effective on MS (Murashige and Skoog) media supplemented with 2.0 mg L^(-1)2, 4-D included in 1.0 mg L^(-1) kinetin than the other experimental plots which prepared with the different concentration of the various growth regulators. Free amino acids extracted from the explants and the callus were a total of 25~26 kinds. Especially, the basic amino acids such as arginine, lysine and histidine released in callus were found relatively in a large quantity. These results suggest that the cultured callus of Rhodiola sachalinensis could induce for the mass production of the other useful ingredients.
고려인삼 ( Panax ginseny C. A. Meyer ) 배양세포의 생육 및 질소흡수에 미치는 Ammonium Citrate 와 Ammonium Succinate 의 영향
김홍성(Hong Seong Kim),김명원(Myong Won Kim),소상섭(Sang Sup So),강영희(Young Hee Kang) 한국식물학회 1981 Journal of Plant Biology Vol.24 No.1
In order to investigate the effects of ammonium citrate and ammonium succinate on the growth and absorption of nitrogen compounds supplied in the medium, Korean ginseng (Panax ginseng C. A. Meyer) calli were suspension cultured in MS medium with various concentrations of ammonium citrate and ammonium succinate. When Korean ginseng calli were cultured with 10mM ammonium citrate, 10mM ammonium succinate, and 10mM ammonium nitrate (control) in MS media as the nitrogen sources, the growth, NO_3-N absorption and total nitrogen content of the Korean ginseng cells were greatest in the ammonium citrate and ammonium succinate concnetrations. When Korean ginseng calli were cultured with 5mM ammonium citrate and 5mM ammonium succinate, the growth and nitrogen content were superior to those of the control: however, NO_3-N and NH_4-N absorptions were similar to those of the control. In conclusion, the 10mM ammonium citrate and 10mM ammonium succinate may be better able to facilitate the growth and NO_3-N utilization and uptake than 5mM ammonium citrate and 5mM ammonium succinate concentrations. The concentrations of ammonium citrate and ammonium succinate may be varied in order to obtain the desired effects to facilitate the growth of the ginseng callus.