A New Sesame Variety, “Kangbaek” with Disease Resistance, Lodging Tolerence and High Yield

Kang-Bo Shim,Churl-Whan Kang,Suk-Bok Pae,Si-Kyu Lim,Yu-Young Lee,Duck-Yong Suh,Jae-Whan Rho,Jin Song,Dong-Whi Kim,Ho-Young Kim 한국육종학회 2005 한국육종학회지 Vol.37 No.5

A new sesame variety Kangbaek was developed from Yeongnam Agricultural Research Institute in 2004. Cros wasmade by lodging resistant SP9003-3 line to the F1with high yielding capacity, folowed by pedigree selection, yield test and RYT by the sesame breeding team at the National Insti-tute of Crop Science up to 2003. The variety showed higher disease resistance, especially phytophothra disease, and lodging resis-respectively. It's 1000 grains weight was about 2.54 g indicating 0.03 g heavier than that of Yangbaekkae, and it's oil content wasabout 52%. Kangbaek also contained total 7.65mg/g of such lignans as sesamin and sesamolin. The average yield of Kang-baek was 82 kg per 10a at the national-wide regional performance.

Parkinson's disease에서 [18F]-FP-CIT을 이용한 Brain PET/CT영상의 유용성

강용길 ; 홍시영 김천대학교 2009 김천대학교 논문집 Vol.30 No.-

Neuroreceptors and transporters have an important role in brain function.Parkinson's disease is a common neurodegenerative disorder that is mainly causedby dopaminergic neuron loss in the substantia nigra.Distribution, density, and activity of neuroreceptors and transporters can bevisualized by radiotracers with PET and SPECT.In vivo PET and SPECT imaging of presynaptic dopamine imaing are alreadyapplied to Parkinson's disease and other parkinsonism, and can demonstrate thedopaminergic dysfunction.Dopamine transporter imaging is useful in the diagnosis of Parkinson's diseaseand the most successful technique in the clinical use of neuroreceptor imaging.​Recently, several radiopharmaceuticals including 123I-FP-CIT, 99mTc-TRODATand 18F-FP-CIT for dopamine transporter imaging have been approved for theroutine clinical use in several European countries, Taiwan and Korea, respectively.Therefore, In this paper an overview of Parkinson's disease medicines for diag-nosis and radioactive 18F-FP-CIT using a PET/CT imaging has confirmed theusefulness of the clinical use.

人蔘의 配合에 따른 數種 韓藥材의 抗酸化作用에 關한 硏究 (Ⅱ)

朴時興,康秉秀,朴涌基 대한본초학회 1999 大韓本草學會誌 Vol.14 No.2

This study was carried out in order to investigate the anti-oxidant effect of main tonic medicine, Ginseng Radix with combination of other well-known herb medicines such as Rehmammiae Radix Preparat, Astragali, Poria, Aconiti lateralis Preparata Radix, Gecko and Bupleuri Radix. These herbs were mixed with Ginseng Radix to measure inhibitory activity lipid peroxidation of linoleic acid mixture and rat liver and hydrogen-giving-temper effect by DPPH. The study showed the following valuable results. 1. In inhibitory activity of water extract against lipid peroxidation of linoleic acid mixture, Ginseng Radix-Gecko compound herbal medicine showed the highest anti-oxidant activity. Ginseng Radix -Rehmammiae Radix Preparat compound herbal medicine showed the lowest anti-oxidant activity when compared with the examined samples. 2. In inhibitory activity of water extract against lipid peroxidation of rat liver, Ginseng Radix-Gecko showed the highest anti-oxidant activity. Ginseng Radix-Rehmammiae Radix Preparat showed the lowest anti-oxidant activity. 3. In hydrogen-giving-temper effect of water extract by DPPH, Ginseng Radix-Gecko compound herbal medicine showed the highest anti-oxidant activity. 4. In the linoleic acid mixture, Ginseng Radix-Gecko compound herbal medicine showed the highest anti-oxidant activity in Butanol fraction. 5. In the lipid peroxidation of rat liver, Ginseng Radix-Gecko compound herbal medicine showed the highest anti-oxidant activity in Butanol fraction. 6. In hydrogen-giving-temper effect of water extract by DPPH, Ginseng Radix-Gecko compound herbal medicine showed the highest anti-oxidant activity in Butanol fraction. From the above results, it was concluded as follows. All the six compound herbal medicine including Ginseng Radix showed the anti-oxidant activity. Especially, Ginseng Radix-Gecko compound herbal medicine showed the highest anti-oxidant activity among them.

人蔘의 配合에 따른 抗酸化作用에 關한 硏究 (1) : 人蔘과 配合하는 數種 韓藥制의 抗酸化 作用에 對한 比較 硏究 Study on comparative anti - oxidative effects of some herbal medicine frequently combined with Ginseng Radix

朴時興,康秉秀,朴涌基 대한본초학회 1999 大韓本草學會誌 Vol.14 No.1

This study was carried out in order to investigate the anti-oxidative effects of main tonic herb medicine, Ginseng Radix, Rehmammiae Radix Preparat, Astragali Radix, Poria, Aconiti Iateralis Preparata Radix, Gecko and Bupleuri Radix. These herbs were measured on inhibitory activity against lipid peroxidation of linoleic acid mixture and rat liver and hydrogen-giving-temper effect by DPPH. The study showed the following valuable results: 1. In inhibitory activity of water extract against lipid peroxidation of linoleic acid mixture, Gecko showed the highest anti-oxidant activity among the some herbal medicine and Rehmammiae Radix Preparat showed the lowest anti-oxidant activity when compared with the examined samples. 2. In inhibitory activity of water extract against lipid peroxidation of rat liver, Gecko showed the highest anti-oxidant activity among the some herbal medicine and Rehmammiae Radix Preparat showed the lowest anti-oxidant activity. 3. In hydrogen-giving-temper effect of water extract by DPPH, Gecko showed the highest anti-oxidant activity. 4. In the linoleic acid mixture, Gecko showed the highest anti-oxidant activity in Butanol fraction. 5. In the lipid peroxidation of rat liver, Gecko showed the highest anti-oxidant activity in Butanol fraction. 6. In hydrogen-giving-temper effect of water extract by DPPH, Gecko showed the highest anti-oxidant activity in Butanol fraction. From the above results, it was concluded as follow: All the seven herb medicine including Ginseng Radix showed the anti-oxidant activity. Especially, Gecko showed the highest anti-oxidantactivity among them.

Phytochemical Profiles and in vitro Anti-inflammatory Properties of Perilla frutescens cv. Chookyoupjaso Mutants Induced by Mutagenesis with γ-Ray

Yong Dae Park,Young Man Lee,Min Ah Kang,Hyo Jung Lee,Chang Hyun Jin,Dae Seong Choi,Dong Sub Kim,Si-Yong Kang,Wang-Geun Kim,Il Yun Jeong 한국식품과학회 2010 Food Science and Biotechnology Vol.19 No.2

In earlier investigations, Perilla frutescens (L.)Britt. cv. Chookyoupjaso (CJC) mutants were obtained following mutagenesis induced by 200 Gy of γ-rays. The aim of this study was to compare the CJC and 6 P. frutescens (L.) Britt. cv. Chookyoupjaso mutant lines (CJMs), with respect to their phytochemical profiles and to evaluate anti-inflammatory properties by selecting the most bioactive CJM. The methanol extracts of CJMs were tested for inhibition of nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophage cells. Among them, CJM-45 showed significant inhibition of NO production. This extract was further partitioned using ethyl acetate (EtOAc), butanol (BuOH), and water. The EtOAc fraction (EF-cjm45) was evaluated for antiinflammatory activities. These results indicated that the EF-cjm45 reduced NO production by inhibiting inducible nitric oxide synthase (iNOS) expression. The EF-cjm45treatment also significantly diminished expression of MCP-1 and IL-6. In the EF-cjm45, perillaketone,isoegomaketone, ursolic acid, kaempferol, and rosmarinic acid were also found. This study reveals the potential therapeutic use of bioactive CJM-45 and justifies the wide application for this plant in traditional medicine.

Genetic diversity among Korean bermudagrass (Cynodon spp.) ecotypes characterized by morphological, cytological and molecular approaches.

Kang, Si-Yong,Lee, Geung-Joo,Lim, Ki Byung,Lee, Hye Jung,Park, In Sook,Chung, Sung Jin,Kim, Jin-Baek,Kim, Dong Sub,Rhee, Hye Kyung Korean Society for Molecular Biology 2008 Molecules and cells Vol.25 No.2

<P>The genus Cynodon comprises ten species. The objective of this study was to evaluate the genetic diversity of Korean bermudagrasses at the morphological, cytological and molecular levels. Morphological parameters, the nuclear DNA content and ploidy levels were observed in 43 bermudagrass ecotypes. AFLP markers were evaluated to define the genetic diversity, and chromosome counts were made to confirm the inferred cytotypes. Nuclear DNA contents were in the ranges 1.42-1.56, 1.94-2.19, 2.54, and 2.77-2.85 pg/2C for the triploid, tetraploid, pentaploid, and hexaploid accessions, respectively. The inferred cytotypes were triploid (2n = 3x = 27), tetraploid (2n = 4x = 36), pentaploid (2n = 5x = 45), and hexaploid (2n = 6x = 54), but the majority of the collections were tetraploid (81%). Mitotic chromosome counts verified the corresponding ploidy levels. The fast growing fine-textured ecotypes had lower ploidy levels, while the pentaploids and hexaploids were coarse types. The genetic similarity ranged from 0.42 to 0.94 with an average of 0.64. UPGMA cluster analysis and principle coordinate analysis separated the ecotypes into 6 distinct groups. The genetic similarity suggests natural hybridization between the different cytotypes, which could be useful resources for future breeding and genetic studies.</P>

Effect of Root Media Formulation and Fertilizer Application on Potato Plug Seedling Growth and Field Performance

Kang, Bong-Kyoon,Kang, Young-Kil,Kang, Si-Yong,Park, Yang-Mun The Korean Society of Crop Science 2001 Korean journal of crop science Vol.46 No.2

Eight vermiculite-based root media prepared with addition of complete fertilizer (2 g/L; N-$P_2$$O_5$-$K_2$O, 10-10-14) for potatoes (Solanum tuberosum L.) and a commercial root medium were evaluated in 2000 to develop the root media suitable for potato plug seedling production. The eight media consisted of various ratios of vermiculite, perlite, peatmoss, and compost. In addition, four rates (0, 1, 2, or 4 g/L) of the complex fertilizer for potato were added to a root medium (70% vermiculite, 10% perlite, 10% peat moss, and 10% compost by volume) to determine the optimum addition rate of the complex fertilizer for plug seedlings. Compost addition to the media increased plant height, the number of leaves per plant, and top and root fresh weight of 15-day old plug seedlings. The seedlings raised in root media containing compost produced significantly higher total tuber yield. Addition of the complex fertilizer to root media enhanced seedling growth and increased the number of tubers per plant and tuber yields. The results suggest that root media containing 50% vermiculite, 0 to 20% peat moss, 10% perlite, 20 to 40% compost, and 2 g/L complex fertilizer for potato appear suitable for potato plug seedling production.

Evaluation of Root Characters Associated with Lodging Tolerance by Seedling Test in Rice

Si-Yong Kang,Won-Ha Yang,Hyun-Tak Shin 韓國作物學會 1999 Korean journal of crop science Vol.44 No.4

Rice seedling test was conducted to check the loging tolerance at ripening stage through evaluating the root characters. Thirteen Korean and foreign rice cultivars with direct seeding adaptable or high quality characteristics were grown in a cell pot and under submerged paddy. The root characters and pushing resistance of rice hill were determined at seedling and ripening stage, respectively. The diameter of crown root at the 7th and 8th leaf stages was thicker in lodging tolerance cultivars than those of others and showed significant-positive correlation with both pushing resistance and crown root diameter of mature plants. Also, the tensile strength of crown root at the 7th and 8th leaf stage showed highly positive correlation with the tensile strength of crown root of mature plants. The number of crown root at 7th leaf stage was significant-positively correlated with that of mature plant. The diameter of seminal root was not significantly correlated with the diameter of crown root throughout the whole growth stage. These results indicate that the diameter, tensile strength and number of crown root associated with root lodging tolerance can be detected with the seedling at about 7th or 8th leaf stage, and the seedling test using the cell pot is an useful and practical method to select lodging tolerant cultivars or lines of rice based on root characters, especially diameter of crown root.

Genetic Relationship of Hibiscus syriacus L. Clarified by AFLP and Morphological Evaluation

Si-Yong Kang,Sang Hoon Kim,Wook-Jin Kim,Geung-Joo Lee,Hi-Sup Song,Dong Sub Kim,Jin-Baek Kim 한국원예학회 2009 Horticulture, Environment, and Biotechnology Vol.50 No.6

Genetic diversity and relationship of Hibiscus syriacus L. were analyzed using 127 cultivars and 7 landraces by the amplified fragment length polymorphism (AFLP) and the assessment of morphological characteristics. The AFLP analysis was carried out by using capillary electrophoresis with 28 fluorescent labeled primer combinations. Morphological evaluation was executed by the 11 parameters. A multivariate data analysis was performed using similarity coefficients, Euclidean distance, unweight pair group method with arithmetic averages (UPGMA) clustering method, and principal coordinate analysis (PCoA) of NTSYS-pc program. In the AFLP analysis, a total of 2, 842 bands were produced in the 28 primer sets, and 43.4% (1,236 bands) of them were identified to be polymorphic. Similarity coefficient values ranged between 0.49 and 0.98. Scattered distribution of the 127 cultivars and 7 landraces was identified, and they were divided into three major groups based on PCoA and UPGMA clustering analysis. In the morphological evaluation, Euclidean distance values ranged from 0.28 to 10.32. The distribution showed that there was a little difference compared with the result of AFLP. The pedigrees of several cultivars were cross-correlated using the results of AFLP and morphological analysis.

Comparative Analysis of Root and Shoot Growth between Tongil and Japonica Type Rice

Si-Yong Kang,Shigenori Morita 韓國作物學會 1998 Korean journal of crop science Vol.43 No.3

Root and shoot development of two rice (Oryza sativa L.) cultivars with different genetic backgrounds was studied with reference to their relative growth. Tongil type (indica-japonica hybrid) cultivar 'Kuemkangbyeo' and japonica cultivar 'Koshihikari' were grown in 5000-1 a Wagnar pots under flooded condition. Three plants with roots of both cultivars were taken in every phyllochron through the heading stage to record morphological characteristics of shoot and root system. Compared to Koshihikari, Kuemkangbyeo produced more tillers and had greater shoot weight and leaf area per hill. Length and weight of the root system in both cultivars increased exponentially with time. At the same time, root system development was significantly faster in Kuemkangbyeo than in Koshihikari after the panicle initiation stage. As a result, Kuemkangbyeo has a vigorous root system which consists of larger number of nodal roots compared to Koshihikari. Also, the root length and weight per unit leaf area of Kuemkangbyeo were larger than those of Koshihikari in the later half of growing period, which suggests possible higher physiological activity of the root system of Kuemkangbyeo which is known as a high-yielding cultivar. The relationship between root traits (crown root number, total root length, and root dry weight) and shoot traits (leaf area and leaf+culm dry weight) in both cultivars closely showed allometry until the flag leaf stage.