• Research Article

    Effects of Forest Environments on Growth and Active Compound Contents of Ligusticum chuanxiong Hort. among Different Forest Sites

    기후대별 산림환경에 따른 토천궁의 생육 및 유효성분 특성

    Nam Su Kim, Kwon Seok Jeon, Hyunseok Lee

    김남수, 전권석, 이현석

    Ligusticum chuanxiong Hort. is included in Umbelliferae family, it is one of the Korean traditional medicinal plants as the roots have been ... + READ MORE
    Ligusticum chuanxiong Hort. is included in Umbelliferae family, it is one of the Korean traditional medicinal plants as the roots have been used to treat diseases. In this study, the growth characteristics and active compound contents of L. chuanxiong were compared among the different forest sites. As a result, root diameter and root length of L. chuanxiong was the highest in Jeongseon. Also, the fresh weight and dry weight of L. chuanxiong were the highest in Jeongseon. The total content of active compound was 23.27 ㎎/g the highest in Bonghwa, and 21.59 ㎎/g in Jeongseon, 15.87 ㎎/g in Hamyang was accumulated. In this study compares three forest site for cultivating of L. chuanxiong in different climate zone that the best site to product yield were Jeongseon. In this sites were located in higher altitue and lower temperature than other sites, also there were shown that lower soil moisture contents and well-drained soil. It was shown yield and active compound contents of L. chuanxiong was influenced by micro-environment conditions like as altitude, temperature, soil conditions. - COLLAPSE
    October 2020
  • Research Article

    Induction of Apoptosis by Sageretia thea Branch Extracts through Activation of NF-κB Signaling Pathway in Human Colorectal Cancer Cells

    상동나무(Sageretia thea) 가지추출물의 대장암세포에서 NF-κB 신호전달 활성화를 통한 세포사멸 유도활성

    Jeong Dong Kim, Su Bin Park, Hyun Ji Eo, Gwang Hun Park, Jin Boo Jeong

    김정동, 박수빈, 어현지, 박광훈, 정진부

    In this study, we evaluated the inhibitory effect against cell growth and potential molecular mechanism of 100% ethanol extracts of branch from ... + READ MORE
    In this study, we evaluated the inhibitory effect against cell growth and potential molecular mechanism of 100% ethanol extracts of branch from Sageretia thea in human colorectal cancer cells, HCT116. Ethanol dose-dependently extracts of STB significantly suppressed the growth of HCT116 cells through apoptosis. STB activated NF-κB signaling pathway through IκB-α proteasomal degradation and inducing p65 accumulation in nucleus. The inhibition of GSK3β by LiCl didn’t affect STB mediated degradation IκB-α but STB mediated p65 accumulation in nucleus. In addition, STB phosphorylated GSK3β. Based on these findings, STB may be a potential candidate for the development of anti-cancer agents for human colorectal cancer. - COLLAPSE
    October 2020
  • Research Article

    Variety, Cutting Date and Physiological Functionality for Production of Leaves in Goji Berry (Lycium chinense Mill.)

    구기자 잎 생산에 알맞은 품종, 예취시기 및 생리활성 평가

    Jung-Il Ju, Seung-Woo Paik, Tug-Sang Yun, Young-Chun Park, Bo-Hee Lee, Seung Wan Son

    주정일, 백승우, 윤덕상, 박영춘, 이보희, 손승완

    Goji berry (Lycium chinense Mill.) is one of medicinal plants. Its leaves has been used to manufacture the functional foods by replacing ... + READ MORE
    Goji berry (Lycium chinense Mill.) is one of medicinal plants. Its leaves has been used to manufacture the functional foods by replacing the dried-fruit because of low production costs. In order to produce the leaves of uniform quality, continuous selection and the establishment of cultivation techniques were required. Among the eleven recommended cultivars, ‘Myeongan’ showed high yielding and rapid regeneration after cutting. The dried-leaf yield was linearly increased from 106 ㎏/10a on May 16 to 287 ㎏/10a on June 20. An appropriate cutting date and cutting length (about 60-70 cm) was important factors for its efficient regeneration. The late cutting times were not suitable due to difficulties during plant harvesting because of stem rigidity and thorn generation. The betaine content of leaves ranged from 1.43 ~ 2.63% and significantly affected by the varieties and the cutting dates. The main physiological functionality of leaf was Angiotesin-1-converting enzyme (ACE) inhibitory activity, representing the anti-hypertensive. The other physiological functionalities, XOD inhibitory activity, antioxidant activity, tyrosinase inhibitory activity, SOD-like activity, α-glucosidase inhibitory activity and fibrinolytic activity, were not detected or less than 20%. - COLLAPSE
    October 2020
  • Research Article

    Construction of Data System on Seed Morphological Traits and Functional Component in Tartary Buckwheat Germplasms

    쓴메밀 유전자원의 종자특성과 유용성분 변이에 관한 자원 정보 구축

    Su Jeong Kim, Hwang Bae Sohn, Su Young Hong, Jong Nam Lee, Ki Deog Kim, Jong Taek Suh, Jeong Hwan Nam, Dong Chil Chang, Min Woo Park, Yul Ho Kim

    김수정, 손황배, 홍수영, 이종남, 김기덕, 서종택, 남정환, 장동칠, 박민우, 김율호

    This study analyzed the phenotypes and chemotypes of 74 tartary buckwheat (Fagopyrum tataricum) germplasms using principal component analysis and cluster analysis. The ... + READ MORE
    This study analyzed the phenotypes and chemotypes of 74 tartary buckwheat (Fagopyrum tataricum) germplasms using principal component analysis and cluster analysis. The average seed size of tartary buckwheat germplasm was 5.2 × 3.4 ㎜, which is smaller than the seed size of common buckwheat. The dark browned colored ovate or elliptic shape was mostly observed in collected germplasm. The average content of rutin was 1,393 ㎎ per 100 g dry weight (DW) in tartary buckwheat seed. Similarly, the flavonoid and polyphenol contents ranged from 253 to 2,669 and 209 to 1,823 ㎎, respectively, per 100 g DW in the collected germplasm. The three components (PC1, 2, and 3) of principal component analysis revealed 68.55% of the total variance of the collected accessions. Cluster analysis using descriptors showed that 74 accessions were clustered into five groups. The study showed that the most interesting resources for functional breeding programs are: Five resources (HLB1004, HLB1005, HLB1007, HLB1009, and HLB1013) due to the rich rutin, polyphenol, and flavonoid. - COLLAPSE
    October 2020
  • Research Article

    Inhibitory Effect of the Rodgersia podophylla Leave Extracts against Cell Proliferation through Activation of NF-κB in Human Colorectal Cancer Cells

    도깨비부채 잎 추출물의 NF-κB 활성화를 통한 대장암 세포 HCT116에 대한 세포생육 억제활성

    Jeong Dong Kim, Jin Boo Jeong

    김정동, 정진부

    In this study, we evaluated the anti-cancer activity and potential molecular mechanism of 70% ethanol extracts of leaves from Rodgersia podophylla against ... + READ MORE
    In this study, we evaluated the anti-cancer activity and potential molecular mechanism of 70% ethanol extracts of leaves from Rodgersia podophylla against human colorectal cancer cells, HCT116. RPL dose-dependently decreased the cell viability through RPL-induced apoptosis in HCT116 cells. RPL induced inactivation the nuclear factor κB(NF-κB) through blocking IκB-α degradtion and P65 nuclear accumulation. The inhibition of GSK3β by LiCl attenuated RP-L-mediated NF-κB signaling inactivation. In addition, RP-L induced GSK3β activation. Based on these findings, RPL may be a potential candidate for the development of chemopreventive or therapeutic agents for human colorectal cancer. - COLLAPSE
    October 2020
  • Research Article

    Vasodilatation Effect of Kirenol Isolated from Sigesbeckia pubescens

    털진득찰에서 분리한 Kirenol의 혈관 이완효과

    Jung Hwan Nam

    남정환

    The purpose of this study is to investigate the vasodilatation effect of kirenol isolated from Sigesbeckia pubescens on the rabbit basilar artery ... + READ MORE
    The purpose of this study is to investigate the vasodilatation effect of kirenol isolated from Sigesbeckia pubescens on the rabbit basilar artery. In this study, to determine the vasodilatation effect of kirenol on the rabbit basilar artery, arterial rings with intact or damaged endothelium were used for the experiment. And used an organ bath and force transducer were contracted by endothelin. Kirenol, major active constituents of S. pubescens, showed a moderate vasodilatation effect on the basilar arteries of rabbits. Therefore, treatment with kirenol may selectively accelerate cerebral blood flow through dilatation of the basilar artery. This result suggests a potential role of kirenol isolated from S. pubescens as a source of vasodilatation agent. - COLLAPSE
    October 2020
  • Research Article

    New Record of Potamogeton × anguillanus Koidz. (Potamogetonaceae) in Korea

    가래과 가래속의 한반도 미기록식물: 얼치기대가래

    Sunhee Sim, Jung-Hyun Kim, Jin-Seok Kim

    심선희, 김중현, 김진석

    In this study, we report a unrecorded plant on the Korean peninsula, Potamogeton × anguillanus Koidz. from Yeondangcheon (stream) in Yeondang-ri, Nam-myeon, Yeongwol-gun ... + READ MORE
    In this study, we report a unrecorded plant on the Korean peninsula, Potamogeton × anguillanus Koidz. from Yeondangcheon (stream) in Yeondang-ri, Nam-myeon, Yeongwol-gun, Gangwon-do province. Potamogeton × anguillanus is a natural hybrid between P. wrightii Morong. and P. perfoliatus L. It is distinguished by its characteristic that the petiole is shorter than P. wrightii and that the leaf blade is narrower and longer than P. perfoliatus also, it didn't fully wrap the stem. Considering that P. × anguillanus is a natural hybrid, the name is given to it as ‘Eol-chi-gi-dae-ga-rae’. We provide descriptions of the morphological characteristics, photographs, and key to allied taxa in Korea of P. × anguillanus. - COLLAPSE
    October 2020
  • Research Article

    A Study on Plant Community Structure Based on the Fourth National Park Resource Survey Plots in Mt. Jirisan National Park

    지리산국립공원 제4기 자원조사 표본지 내 식물군집구조

    Hong Chul Park, Eun Ok Kim, Woo Chan Kim

    박홍철, 김은옥, 김우찬

    The purpose of this study was to identify the phytosociological vegetation structure through a sampling survey of Mt. Jirisan National Park. And ... + READ MORE
    The purpose of this study was to identify the phytosociological vegetation structure through a sampling survey of Mt. Jirisan National Park. And it was conducted to provide the latest data for establishing a conservation and management plan for forest ecosystems. As a result of TWINSPAN classification, it was classified into 4 communities. Group Ⅰ is the Fraxinus mandshurica - Acer pseudosieboldianum Community, group Ⅱ is the Quercus serrata - Quercus variabilis Community, group Ⅲ is the Quercus mongolica Community, group Ⅳ is the Pinus densiflora Community. Group Ⅰ is dominated by Fraxinus mandshurica in the canopy layer, and Cornus controversa and Quercus mongolica compete and maintain dominance. Group II is dominated by Quercus variabilis and Quercus serrata in canopy layer, and Styrax obassia and Styrax japonicus compete in sub-tree layer. In group Ⅲ, Quercus mongolica has a high dominance of 67% in canopy layer and 27% in the sub-tree layer, and Acer pseudosieboldianum competes with the Quercus mongolica in the sub-tree layer. In group Ⅳ, Pinus densiflora showed a high dominance of 74% in canopy layer. The sub-tree layer is dominated by Quercus mongolica, and is accompanied by competition between Carpinus tschonoskii and Fraxinus sieboldiana. - COLLAPSE
    October 2020
  • Research Article

    Flora and Medical Plant Resources of Natural Ecosystem Conservation Area at Mt. Daedeoksan・Geumdaebong

    대덕산・금대봉 자연생태계보전지역의 관속식물상과 약용자원식물

    Sunghyuk Park, Yonghwan Son, Dahyeon Lee, Hojun Son

    박성혁, 손용환, 이다현, 손호준

    This study is attempted to prepare criteria to determine target species for conservation, through analyzing vascular flora and medicinal resources plants of ... + READ MORE
    This study is attempted to prepare criteria to determine target species for conservation, through analyzing vascular flora and medicinal resources plants of Mt. Daedeok and Geumdae-bong in Gangwon Province, Korea. Flora Surveys were conducted 14 times from April, 2017 to October, 2019. Total 428 taxa with 83 families, 245 genera, 356 species, 5 subspecies, 46 varieties and 21 forms were distributed in Mt. Daedeok and Geumdae-bong. Korean endemic species were composed of 19 species. Total 36 taxa of Korean rare plants species were identified including 5 taxa in the degree of CR, 2 taxa in the degree of EN, 12 taxa in the degree of VU, 14 taxa in the degree of LC and 3 taxa in the degree of DD. The naturalized plants were 5 families, 10 genera, 10 species, totaling 10 taxa and medicinal resources plants were 239 taxa with 73 families, 185 genera, 239 species, 30 varieties 4 forms, 4 subspecies. The Urbanization Index (UI) was 2.5% and the Naturalized Index (NI) was 1.9%. - COLLAPSE
    October 2020
  • Research Article

    Aquatic and Riparian Flora of the Nakdonggang River Tributary (Sangju: Byeongseong-cheon, Buk-cheon, Oeseo-cheon)

    낙동강 지류의 수생 및 수변 식물상(상주: 병성천, 북천, 외서천)

    Yong Hwang, Jeong-Ki Hong

    황용, 홍정기

    This study was conducted to provide information on local resource plants by identifying aquatic and Riparian flora. We investigated the aquatic and ... + READ MORE
    This study was conducted to provide information on local resource plants by identifying aquatic and Riparian flora. We investigated the aquatic and riparian floras in 3 streams (Byeongseong-cheon, Buk-cheon, Oeseo-cheon) from February to October 2019. 321 taxa (i.e. 300 species, 5 subspecies, 15 varieties 1 Cultivars from 203 genera of 78 families) of the vascular plants were found in the survey area. Byeongseong-cheon is 133 taxa, Buk-cheon is 233 taxa and Oeseo-cheon is 132 taxa. Among 321 taxa, we found 5 endemic species, 3 red list plants, and However, endangered plants were not found in 3 streams. Aquatic and Riparian plant 138 taxa(i.e. Aquatic plant 20 taxa, Riparian plant 118 taxa). Life forms is annual plant 43 taxa, biennial plant 24 taxa, perennial plant 71 taxa. Aquatic plant growth forms emergent hydrophyte 13 taxa, floating leaved hydrophyte 1 taxa, submerged hydrophyte 6 taxa. The number of floristic regional indicator plants was 15 (i.e. 1 species of Ⅳ degree, 3 taxa of Ⅲ degree, 5 taxa of Ⅱ degree, and 6 taxa of Ⅰ degree). Approved foreign export plants 31 taxa. In addition, 52 naturalized plants were identified, and the percentage of Naturalized Index (NI) and Urbanization Index (UI) were 16.1%, and 16.2%, respectively. Vascular plant usability and reclassification result is Edible 213 species (66%), Medicinal 244 species (76%), Flavor 10 species (3%), Industrial 136 species (42%), Ornamental 137 species (36%), Restoration 117 species (36%), Compost 155 species (48%), Unknown 7 species (5%). We hope that our results provide reference data to set up strategy of resources plants, conservation of biodiversity in the 3 streams and Sangju-si areas. - COLLAPSE
    October 2020
  • Research Article

    Status of Molecular Biotechnology Research Based on Tissue Culture of Soybean

    콩 조직배양 기술에 기반한 생명공학 연구 동향

    Mi-Suk Seo, Chuloh Cho, Man-Soo Choi, JaeBuhm Chun, Mina Jin, Dool-Yi Kim

    서미숙, 조철오, 최만수, 전재범, 진민아, 김둘이

    Soybean (Glycine max (L.) Merrill) is one of the most important crops of the world. With the completion of the soybean genome ... + READ MORE
    Soybean (Glycine max (L.) Merrill) is one of the most important crops of the world. With the completion of the soybean genome sequence, the Korean soybean core collection consisted of 430 accessions with genetic and phenotypic diversity was constructed in recent year. The availability of genome sequences and core collection will result in the crop improvement by molecular breeding using the various accessions and genome editing approaches. Efficient tissue culture techniques, such as haploid production, protoplast culture and plant regeneration from various organs are essential for the successful molecular biological approach and crop improvement. However, soybean is still considered to be recalcitrant in tissue culture because of the low frequency of regeneration and limitation of available responsive cultivars. In this study, we discuss the recent studies of tissue culture technology and methodology for efficient tissue culture to genetic improvement and application of molecular biotechnology in soybean. - COLLAPSE
    October 2020