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Guanghai Shen,Phan Van Kiem,Xing-Fu Cai,Gao Li,Nguyen Tien Dat,Yeon A Choi,Young Mi Lee,박용기,Young Ho Kim 대한약학회 2005 Archives of Pharmacal Research Vol.28 No.6
A new biflavonol glycoside named as solanoflavone (1) was isolated from aerial part of Solanum melongena. The chemical structure was elucidated as isorhamnetin-3-O-β-D-glucopyranoside-( 4'→O→4''')-galangin-3''-O-β-D-glucopyranoside on the basis of physicochemical and spectroscopic methods, including 2D NMR spectral techniques.
Guanghai Zhang,JinHua Zhou,Jie Song,Xuheng Nie,Huachun Guo 한국원예학회 2022 Horticulture, Environment, and Biotechnology Vol.63 No.2
Grafting potato into Solanaceae plants has been used as an efficient method to solve such problems as a short flowering period, low fruit setting rate, and sterility in potato crossbreeding. However, the molecular mechanisms governing grafting-induced phenotypic variations have not been elucidated. In this study, one potato cultivar and wild Datura stramonium served as scion (StS) and rootstock (DsR), respectively. Phenotypic analysis showed that the fertility of StS was visibly improved in comparison with self-grafted potato (St). Comparative transcriptome profiling revealed that 1490 diff erentially expressed genes were identified in StS compared with St, and some of these genes appear to be involved in pathways related to genome damage and genotoxic stress response. We reported the comprehensive identification of mRNA movement between DsR and StS, indicating that 111 transcripts of DsR were delivered to StS. Conversely, the 1968 mRNAs were transported from StS to DsR. Based on GO analysis, some of these mobile transcripts had a biological role in regulating pollen tube development and fruit morphogenesis. This work provides abundant transcriptome profile data for potato scions and reveals that three key transcripts moving from rootstock to scion may be responsible for improving the fertility of potatoes.
Phytochemical Investigation of Tiarella polyphylla
Guanghai Shen,오세량,민병선,Joongku Lee,Kyung Seop Ahn,김영호,Hyeong-Kyu Lee 대한약학회 2008 Archives of Pharmacal Research Vol.31 No.1
Seven flavonoids (1-7), two triterpenoids (8 and 9) and four steroids (10, 11, 12 and 13) were isolated from the whole plant of Tiarella polyphylla. Based on the physicochemical and spectroscopic analyses, their structures were identified as myricetin (1), astragalin (2), afzelin (3), quercitrin (4), myricitin (5), nicotiflorin (6), isoquercitrin (7), tiarellic acid (8), 3β-hydroxy- 20(29)lupen-27-oic acid (9), β-sitosterol-3-O-β-D-glucoside (10), stigmasterol-3-O-β-D–glucoside (11), β–sitosterol (12) and ergosterol endoperoxide (13). All 13 compounds, with the exception of tiarellic acid were isolated for the first time from T. polyphylla. In the anti-complementary assay, the steroids (12 and 13) exhibited potent activities; whereas, the flavonoids (1 to 7) showed weak or no activities, but even the triterpenoids (8 and 9) and steroidal saponins (10 and 11) evoked hemolysis.
Guanghai Jin,Sangmoo Choi,Moojin Kim,Sungchul Kim,Jonghyun Song IEEE 2012 Journal of display technology Vol.8 No.8
<P>Active matrix organic light-emitting diode (AMOLED) displays are fabricated from polycrystalline silicon, which is formed in the single and double (overlap) scanned area during the excimer laser annealing (ELA) process. A redundant pixel line (RPL) design is proposed to remove the overlapping mura and, as a result, a 5-in AMOLED display is successfully fabricated without any non-uniform line image on the overlapping scanned area. This result indicates that the fabrication of a large-sized AMOLED panel is possible using ELA crystallization through an RPL design.</P>
Effects of tomato and potato heterografting on photosynthesis, quality and yield of grafted parents
Guanghai Zhang,Huachun Guo 한국원예학회 2019 Horticulture, Environment, and Biotechnology Vol.60 No.1
Grafting has been widely used to improve quality, yield, and tolerance to biotic and abiotic stresses in plants. Tomato/potatoheterografting combines two diff erent species to create a new variety that can harvest tomato fruits and tubers from scions androotstocks, respectively. This could be an optimal agricultural technique for improving yield and utilizing nature resourceseff ectively, but the growth and development of rootstocks and scions after grafting are rarely described. The present studyaimed to determine the eff ects of tomato/potato heterografting on the physiological characters, quality and yield of fruitsand tubers and study the changes in photosynthetic capacity of tomato scion grafted to potato rootstock. In this study, theZhongyan988 (ZY988) tomato cultivar four potato cultivars, Lishu6 (LS6), Qingshu9 (QS9), Hezuo88 (HZ88) and Diantongshu1(DTS1), served as grafting parents and ungrafted tomato and potato plants were used as controls. Intergenericgrafting between tomato and potato was an eff ective agricultural approach that improved the yield per unit area on existingcultivated land. Under normal growth conditions, grafting had no signifi cant eff ect on the photosynthetic capacity of thetomato leaves. Some characteristics related to the tomato fruit quality were improved by the potato rootstocks, includingvitamin C (Vc), total soluble solids and soluble sugars; however, the titratable acidity content decreased in these graftedplants. The tomato fruit size and fruit number were aff ected by grafting. Grafting produced more fruit with lower averageweight per fruit. Grafting had a signifi cantly promoted tuber sprouting during the harvest period and decreased the tubernumber per plant. Furthermore, the starch content and Vc level in the potato tubers were signifi cantly decreased after grafting,but the reducing sugar content signifi cantly increased. Scion and rootstock changes caused by grafting may be relatedto the accumulation and distribution of photosynthetic products and scion-rootstock interactions.
Phytochemical Constituents from Distylium racemosum Sieb. et Zucc.
Shen, Guanghai,Cai, Xing Fu,Dat, Nguyen Tien,Kim, Young Ho 충남대학교 약학대학 의약품개발연구소 2007 藥學論文集 Vol.22 No.-
Seven known compounds were isolated from the methanolic extract of the leaves and twigs of Distylium racemosum through repeated silica gel, YMC gel and Sephadex LH-20 column chromatography. Their chemical structures were elucidated as β-sitosterol (1), taraxerol (2), betulin (3), afzelin (4), astragalin (5), nicotiflorin (6) and quercitrin (7) by spectroscopic analysis.
Phytochemical Investigation of Tiarella polyphylla
Shen, Guanghai,Oh, Sei-Ryang,Min, Byung-Sun,Lee, Joong-Ku,Ahn, Kyung-Seop,Kim, Young-Ho,Lee, Hyeong-Kyu 대한약학회 2008 Archives of Pharmacal Research Vol.31 No.1
Seven flavonoids (1-7), two triterpenoids (8 and 9) and four steroids (10, 11, 12 and 13) were isolated from the whole plant of Tiarella polyphylla. Based on the physicochemical and spectroscopic analyses, their structures were identified as myricetin (1), astragalin (2), afzelin (3), quercitrin (4), myricitin (5), nicotiflorin (6), isoquercitrin (7), tiarellic acid (8), $3{\beta}-hydroxy-20$(29)lupen-27-oic acid (9), ${\beta}-sitosterol-3-O-{\beta}-D-glucoside$ (10), stigmasterol-3-O-${\beta}-D-glucoside$ (11), ${\beta}-sitosterol$ (12) and ergosterol endoperoxide (13). All 13 compounds, with the exception of tiarellic acid were isolated for the first time from T. polyphylla. In the anti-complementary assay, the steroids (12 and 13) exhibited potent activities; whereas, the flavonoids (1 to 7) showed weak or no activities, but even the triterpenoids (8 and 9) and steroidal saponins (10 and 11) evoked hemolysis.
Shen Guanghai,Kiem Phan Van,Cai Xing-Fu,Li Gao,Dat Nguyen Tien,Choi Yeon A,Lee Young Mi,Park Yong Ki,Kim Young Ho The Pharmaceutical Society of Korea 2005 Archives of Pharmacal Research Vol.28 No.6
A new biflavonol glycoside named as solanoflavone (1) was isolated from aerial part of Solanum melongena. The chemical structure was elucidated as isorhamnetin-3-O-$\beta$-D-glucopyranoside-(4'$\to$O$\to$4"')-galangin-3"-O-$\to$-D-glucopyranoside on the basis of physicochemical and spectroscopic methods, including 2D NMR spectral techniques.
심광해,채흥복,닷, 윈디엔,이은주,배기환,강종성,김영호 충남대학교 약학대학 의약품개발연구소 2004 藥學論文集 Vol.19 No.-
Gentianae scabrae Radix has been used in traditional medicine for the treatment of analgesic, anti-inflammatory and gastrointestinal tract diseases In order to evaluate the quality of Gentianae scabrae Radix, quantitative determination method of gentiopicroside has been developed by the HPLC method using the mobile phase of acetonitrile-water (1'9) and C_(18) column. The amount range of gentiopicroside in 20 samples was 0.97 to 5 89%