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결과는 총 13,050건 입니다.
게시판 (13,050)
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Discovery and Characterization of Chemical Compounds That Inhibit the Function
2022-12-23
Abstract: Codonopsis ussuriensis (Rupr. and Maxim.) Hemsl is a medicinal herb commonly found in Korea, Japan, and the Russian Far East. However, its chemical composition and bioactivity have not been extensively studied. Thus, in this study, we aimed to examine and characterize the major components of the plant's roots. Liquid chromatography with high-resolution mass spectrometry (LC-HRMS) was used to identify the components of the crude extracts. The compounds that were identified were named ussurienoside I (1) and tangshenoside I (2). The identified compounds were tested in vitro for inhibitory action against bacterial neuraminidase, and the mechanisms of inhibition were revealed. Compound 1 significantly inhibited bacterial neuraminidase activity in a dose-dependent manner (IC50 = 56.0 µM). The neuraminidase inhibitor (compound 1) exhibited mixed type-I kinetic characteristics. The LC-HRMS data showed that the root extracts contained eight compounds. The findings of this study may aid in the development of bacterial neuraminidase inhibitors with medicinal potential.
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설악산 분비나무군락의 식물사회학적 특성
2021-05-12
ABSTRACT 본 연구에서는 최근 가속화되고 있는 기후변화로 인하여 쇠퇴가 우려되는 설악산 분비나무림을 대상으로 식물사회학적 연구를 수행하였다. 현장조사에서 획득된 70개 방형구 조사결과에 대해 TWINSPAN 기법을 이용하여 군락을 분류하고, DCA 방법으로 서열을 분석한 후 각 군락이 갖는 특성을 분석하였다. 설악산 분비나무림은 4개 군락(분비나무-댕댕이나무군락, 분비나무-시닥나무군락, 분비나무-당단풍나무군락, 분비나무-거제수나무군락)으로 구분되었다. 각 군락은 입지에 따라 분포 유형을 달리하였으며, 이는 해발고도, 사면 등 입지환경에 따라 서로 다른 미소환경이 형성됨으로써 종조성이 달리지기 때문이다. 각 군락은 분포 고도, 암석비율, 토양특성, 낙엽층 두께 등의 환경에서 차이를 보였으며, 그 결과로 종구성의 차이뿐만 아니라 출현종수 및 개체수, 식피율, 수목규격, 종다양도 등에서 군락 간 유의미한 차이를 보였다. 분비나무-댕댕이나 무군락과 분비나무-시닥나무군락은 높은 고도의 암석비율이 높은 곳에 입지하며 교목층 발달이 미약하였다. 반면, 분비나무-당단풍나무군락과 분비나무-거제수나무군락은 분포 고도가 상대적으로 낮고 토양비율이 높았으며, 교목층이 발달하고 종다양도가 높게 나타났다.
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Comparative fruit morphology and its systematic significance in Ferula (Apiaceae) species from diffe
2021-12-28
Abstract A comprehensive study was conducted on the fruits of 49 Ferula species, mostly from Central Asia, to describe the fruit surface microstructure and understand the systematic significance of this character for infrageneric delimitation. Ancestral states of the key morphometric characters were reconstructed via Mesquite, and distribution of informative characters at generic level was inferred using a Bayesian phylogenetic tree. In addition, chemical compound fingerprints for 21 Ferula species detected via HPLC-DAD were analysed with the COW algorithm in MATLAB 2019a, and optimised in a cladistic analysis, which showed incongruence with molecular data. This research aimed to define species groups within the economically important and taxonomically complex genus Ferula, and detected incongruence between the carpological, molecular and chemical data.
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Antioxidant Activity of Asteraceae Plant Seed Extracts
2021-12-28
ABSTRACT Approximately 10% of all angiosperms belong to the Asteraceae family. Plant species belonging to this family have traditionally been used as medicinal plants in the Korean Peninsula. We investigated the antioxidant activity of seed extracts from 14 species belonging to the Asteraceae family. Seeds with ≥ 90% percentage of filled seed and ≥ 50% final germination were used. The total phenolic content was the highest in Dendranthema zawadskii var. tenuisectum (13.5 mg of gallic acid equivalents (GAEs)/g seeds), followed by Dendranthema zawadskii var. latilobum (11.8 mg of GAEs/g seeds), and Callistephus chinensis (11.0 mg of GAEs/ g seeds). The total flavonoid content was highest in C. chinensis (9.8 mg of quercetin equivalents (QEs)/g seeds), followed by D. zawadskii var. tenuisectum (7.2 mg of QEs/g seeds) and Taraxacum officinale (6.3 mg of QEs/g seeds). Our results showed that 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) scavenging activity was highest in D. zawadskii var. tenuisectum (57.4 μg/ml), followed by T. officinale (59.1 μg/ml) and D. zawadskii var. latilobum (65.0 μg/ml), with a half maximal inhibitory concentration (IC50) of DPPH scavenging activity. Furthermore, 2,2'-azino-bis(3-ethylbenzothiazoline- 6-sulfonic acid) (ABTS) radical scavenging activity was highest in C. chinensis (26.2 μg/ml), followed by D. zawadskii var. tenuisectum (38.4 μg/ml), T. officinale (40.2 μg/ml), with a half maximal inhibitory concentration (IC50) of ABTS scavenging activity. Based on a cluster analysis according to the antioxidant activity, the 14 species were classified into five groups, with group 4 having the highest antioxidant activity and group 0 having the lowest antioxidant activity. D. zawadskii var. latilobum, D. zawadskii var. tenuisectum, T. officinale, and C. chinensis belonging to groups 3 and 4, exhibited high phenolic content and antioxidant activity and can be considered potent plant-derived natural antioxidants.
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2021년 2월 상품권 구입 및 배부 현황
2021-03-31
2021년 2월 상품권 구입 및 배부 현황입니다.
HOME > 사전정보공표 > 인사·총무·회계
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[솔원] 관중, 만병초 등 21종
2025-10-30
1. 출품자 : 솔원 2. 지역 : 세종특별자치시 전의면 3. 연락처 : 044-866-3774 4. 출품식물 : 관중, 만병초 등 21종 자생식물 국명 학명 관중 Dryopteris crassirhizoma 만병초 Rhododendron brachycarpum 빌레나무 Maesa japonica 좀작살나무 Callicarpa dichotoma 주목 Taxus cuspidata 처녀고사리 Thelypteris palustris 파초일엽 Asplenium antiquum 국외도입품종 국명 품종명 학명 단풍나무 '무라사키 키요히메' Acer palmatum 'Murasaki-kiyohime' 단풍나무 '버터플라이' Acer palmatum 'Butterfly' 맥문동 '바리에가타' Liriope muscari 'Variegata' 반들애리조나쿠프레수스 '블루 아이스' Cupressus arizonica var. glabra 'Blue Ice' 비술나무 '아우레아 펜둘라' Ulmus pumila 'Aurea Pendula' 삼나무 '스피랄리스' Cryptomeria japonica 'Spiralis' 일본매자나무 '아우레아' Berberis thunbergii 'Aurea' 편백 '치리멘' Chamaecyparis obtusa 'Chirimen' 단풍나무 종류 Acer palmatum cv. (reddish leaf) 무늬백량금 Ardisia cv. (variegated) 무늬층층나무 Cornus controversa 'Variegata' 실유카 Yucca filamentosa 황금왕쥐똥나무 Ligustrum ovalifolium 'Aureum' 흰좀작살나무 Callicarpa dichotoma f. albifructa
HOME > 식물연구 > 정원식물 전시·품평회 > 출품식물
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[세종전의묘목사회적협동조합] 구상나무, 소나무 등 20종
2025-10-30
1. 출품자 : 세종전의묘목협동조합 2. 지역 : 세종특별자치시 전의면 3. 연락처 : 044-866-9936 4. 출품식물 : 구상나무, 소나무 등 20종 자생식물 국명 학명 구상나무 Abies koreana 소나무 Pinus densiflora 좀목형 Vitex negundo var. incisa 화살나무 Euonymus alatus 국외도입품종 국명 품종명 학명 나무수국 '그린 라이트' Hydrangea paniculata 'Limelight' 로키향나무 '문글로우' Juniperus scopulorum 'Moonglow' 로키향나무 '블루 엔젤' Juniperus scopulorum 'Blue Angel' 맥문동 '바리에가타' Liriope muscari 'Variegata' 반들애리조나쿠프레수스 '블루 아이스' Cupressus arizonica var. glabra 'Blue Ice' 블루베리 '듀크' Vaccinium corymbosum 'Duke' 서양측백 '골든 브라반트' Thuja occidentalis 'Golden Brabant' 서양측백 '골든 스마라크트' Thuja occidentalis Golden Smaragd ('Janed Gold') 서양측백 '잔타르' Thuja occidentalis 'Jantar' 서양측백 '파스타기아타' Thuja occidentalis 'Fastigiata' 주목 '드와프 브라이트 골드' Taxus cuspidata 'Dwarf Bright Gold' 프레이저홍가시나무 '레드 로빈' Photinia × fraseri 'Red Robin' 서양측백 종류 Thuja occidentalis cv. 붉은인동 Lonicera × heckrottii 은청가문비나무 종류 Picea pungens cv. 황금실화백 Chamaecyparis pisifera 'Filifera Aurea'
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Wettability control of paper through substitution between the hydroxyl group and carbon elements
2022-12-23
Abstract: The surface of paper was treated to control wettability using argon-carbon plasma generated by a direct currentpulsed (frequency: 60 kHz) sputtering device with parallel-arrangement magnets. After plasma treatment, the C–C bond percentage in the C 1s region was inversely proportional to the C–OH bond percentage, while the ratio of C=O and O–C=O bonds only changed slightly. The change ratios for the increase in C–C and the decrease in the C–OH bonds were approximately the same, and the change ratio increased from approximately 5%–11% with an increase in the plasma current. The reduction ratio of the contact angle decreased from 0.945 to 0.182 (◦/s) with increasing plasma current. These results indicate that the water resistance of the paper surface was enhanced after the simple plasma treatment, and wettability could be easily controlled by changing the substitution ratio between C–OH and C–C elements, achieved by altering the plasma current.
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[완주조경수협동조합] 고비, 백당나무 등 8종
2025-10-29
1. 출품자 : 완주조경수협동조합 2. 지역 : 전북특별자치도 완주군 3. 연락처 : 063-246-1566 4. 출품식물 : 고비, 백당나무 등 8종 자생식물 국명 학명 고비 Osmunda japonica 백당나무 Viburnum opulus var. sargentii 팥꽃나무 Daphne genkwa 국외도입품종 국명 학명 버지니아이삭여뀌 바리에게이티드 그룹 Persicaria virginiana Variegated Group 만첩조팝나무 Spiraea prunifolia 무늬애기치자나무 Gardenia jasminoides 'Radicans Variegata' 무늬중국쥐똥나무 Forsythia koreana f. aureoreticulata 국내육성품종 국명 학명 금선개나리 Forsythia koreana f. aureoreticulata
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관매도의 식물상
2022-12-23
Abstract: We investigated the flora of Gwanmae island and discussed important vascular plants found on the island. We made plant list using voucher specimens collected from Gwanmae island from 2016 to 2021 and deposited in CNU. There are 500 taxa in Gwanmae island, comprising 103 families, 307 genera, 461 species, 4 subspecies, 32 varieties and 3 forms. Eight endemic plants of Korea were found including Saussurea polylepis Nakai. There are 15 red list plants designated by Ministry of Environment including Cleisostoma scolopendrifolium (Makino) Garay and Woodwardia japonica (L. f.) Sm. There are total 126 taxa of floristic regional indicator plants including 4 taxa of level V such as Juniperus procumbens (Siebold ex Endl.) Miq., 4 taxa of level IV such as Wisteria japonica Siebold & Zucc., 45 taxa of level III such as Rubus trifidus Thunb., 16 taxa of level II such as Glehnia littoralis F. Schmidt and 56 taxa of level I such as Carpesium glossophyllum Maxim. There are 32 invasive plants including Cerastium glomeratum Thuill.
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이 누리집은 산림청 산하 공공기관 누리집입니다.
