• Title/Summary/Keyword: Glycine

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Effects of Interspecific Interactions of Arbuscular Mycorrhizal Fungi on Growth of Soybean and Corn

  • Jeong, Hyeon-Suk;Lee, Jai-Koo;Eom, Ahn-Heum
    • Mycobiology
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    • v.34 no.1
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    • pp.34-37
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    • 2006
  • Growth responses of Zea mays and Glycine max to colonization by mixture of combination of three species of arbuscular mycorrhizal (AM) fungi, two species of Glomus and a species of Scutellospora were compared. In Zea mays, plants inoculated with single species of AM fungi showed significantly higher in dry weight than non-mycorrhizal plant for all three AM fungal species. Also, growth of plants inoculated with spores of two species of AM fungi was significantly higher than nonmycorrhizal control except for plants inoculated with two Glomus species. When three species of AM fungi were inoculated, the plants showed the highest growth. In Glycine max, plants with single AM fungal species inoculation were not significantly different in plant growth from nonmycorrhizal plants. When the plants were inoculated with combination of two or more AM fungal species, their growth significantly increased compared to nonmycorrhizal plants. In both plant species, mycorrhizal root colonization by Scutellospora species was significantly lower than by Glomus species.

Effect of Inorganic Nitrogen on Photorespiration of Pea Leaves (완두잎의 광호흡에 미치는 무기질소의 영향)

  • 이인철
    • Journal of Plant Biology
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    • v.27 no.4
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    • pp.253-261
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    • 1984
  • Leaf discs isolated from the pea seedling grown in nutrient solution containing 5mM ammonia or nitrate exhibited a half level of photorespiration as compared with the nitrogen free control. The manifestation of the ammonia effect appeared somewhat earlier than that of nitrate effect, but this difference subsided as the culture periods was extended. The total amount of ${CO}_2$ fixed by leaves from nitrogen-supplemented seedlings showed approximately 1.5 fold increase over the control with the ammonia effect being manifested earlier than the nitrate effect. The activities of peroxisomal serine: glyoxylate aminotransferase were always higher with ammonia than nitrate, the two types of nitrogen source, however, had similar effect on conversion rate of glyoxylate into glycine. These results indicate that exogenous ammonia does not act directly as an effector of this aminotransferase in vivo. But changes in the level of the pool size of glycine and serine, both of which are the intermediates of photorespiratory process, suggest that exogenous ammonia inhibit the transformation of serine from glycine metabolically.

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Synthesis of ZnS:Mn-Gly-C60 Nanocomposites and Their Photocatalytic Activity of Brilliant Green

  • Li, Jiulong;Ko, Weon Bae
    • Elastomers and Composites
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    • v.53 no.2
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    • pp.75-79
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    • 2018
  • ZnS:Mn-glycine (ZnS:Mn-Gly) nanocomposites were synthesized by capping ZnS:Mn nanocomposites with glycine. Zinc sulfate heptahydrate ($ZnSO_4{\cdot}7H_2O$), glycine ($C_2H_5NO_2$), manganese sulfate monohydrate ($MnSO_4{\cdot}H_2O$), and sodium sulfide ($Na_2S$) were used as the source reagents. $ZnS:Mn-Gly-C_{60}$ nanocomposites were obtained by heating the ZnS:Mn-Gly nanocomposites and fullerene ($C_{60}$) at a 2:1 mass ratio in an electric furnace at $700^{\circ}C$ for 2 h. X-ray diffraction (XRD) was used to characterize the crystal structure of the synthesized nanocomposites. The photocatalytic activity of the $ZnS:Mn-Gly-C_{60}$ nanocomposites was evaluated, via the degradation of brilliant green (BG) dye under 254 nm irradiation, with a UV-vis spectrophotometer.

Triterpenoids from Roots of Glycine max (L.) Merr

  • Lee, Jin-Hwan;Seo, Kwon-Il;Kang, Nam-Suk;Yang, Min-Suk;Park, Ki-Hun
    • Journal of Applied Biological Chemistry
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    • v.49 no.2
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    • pp.51-56
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    • 2006
  • Metanolic root extract of Glycine max (L.) Merr. was chromatographed, affording three triterpenoids 1-3. The compound 3 was isolated from microorganism called Fusarium sporotrichioides but never been isolated from any plant sources. Compounds 1-3 showed cytotoxic activity against HT-59 human cancer cell line with $IC_{50}$ values of 62.9, 20.0, and $44.2{\mu}M$, respectively. Compound 3 showed significant activities against Gram-positive bacterial such as Bacillus cereus, Bacillus subtilis, and Staphylococcs aureus.

Studies on the Free Amino Acids Metabolism in Germinating Mung Bean by Paper Chromatography. (Part $1{\sim}2$) (Part 2) Unknown Nitrogen Compound in Germinating Mung Bean (페파크로마토그라피에 依한 發芽綠豆의 遊離아미노酸代謝의 硏究 (第 1 報${\sim}$第 2 報) (第 2 報) 發芽綠豆中의 未知窒素化合物에 關하여)

  • Kim, Tae-Rin;Song, Chang-Won
    • Journal of the Korean Chemical Society
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    • v.5 no.1
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    • pp.15-17
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    • 1961
  • A ninhydrin positive substance(formed during germination of Mung Bean) which on a 2-dimensional chromatography(BuOH-HAc, and$ PhOH-NH_2$ gave a spot above glutamic acid was isolated by cutting out the appropriate spot on the paper and extracting the paper with water. Hydrolysis of this substance with $2N H_2SO_4\;or\;3N\;HCl\;at\;120^{\circ}C$ for 15 hours gave the spot of mainly glutamic acid, alanine and very faint of glycine and cysteine on a paper chromatography. It is suggested that the reaction of ${\gamma}$-glutamyl-cysteinecyl-glycine + L-alanine in the presence of ${\gamma}$-glutamyle transferase ${\rightarrow}$ ${\gamma}$-glutamyl-alanine + cysteinyl-glycine, takes place in germinated Mung Bean.

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Protein and Amino Acid Compositions in Echiurid and Sea Hare Muscles (개불과 군소육의 단백질 및 아미노산 조성)

  • CHOI Yeung-Joon;HAN Young-Sil
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.18 no.6
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    • pp.550-556
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    • 1985
  • In order to evaluate the marine mollusc muscle as foodstuff not only from the biochemical aspect but also from the view point of food science, we have analyzed the protein and amino acid compositions of the echiurid (Urechis unicinctus) and sea hare (Aplysia kurodai) muscle. The protein quality of the muscles was also investigated using in vitro methods based on in vitro digestibility, predicted digestibility, computed PER (C-PER) and discriminant computed PER(DC-PER). The remarkable feature of the protein compositions of the both muscles was that water soluble protein occupied a large amount of the muscle protein with fairly lower contents of the salt soluble protein. From the analysis of SDS-PAG electrophoresis, the sarcoplasmic proteins in the echiurid and the sea hare muscles were composed of 15 and 10 subunits, respectively. The free amino acid compositions of the total amino acids in the echiurid and sea hare muscle were characterized with $75\%$ of glycine and alanine, and with $78\%$ of taurine, respectively. The amino acid anaylsis of both muscle proteins showed that the echiurid muscle was rich in glycine, aspartic acid, glutamic acid, arginine and lysine, but was poor in cysteine, while the sea hare muscle was rich in glycine, glutamic acid, aspartic acid and arginine, but was negligible in cysteine and tryptophan. In the total amino acid profiles of the freeze dried muscles in echiurid and sea hare, there was not found a significant difference compared to the amino acid compositions of the muscle proteins. Predicting the protein quality of the echiurid and sea hare muscles using the in vitro method, it was apparently low compared to the muscle protein of fishes.

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Effect of Dietary Glycine Betaine on Pork Qualities During Storage (Glycine betaine의 급여가 돈육의 품질에 미치는 영향)

  • Park, G.B.;Hur, S.J.;Yang, H.S.;Lee, J.I.;Kwck, S.J.;Lee, J.D.;Huh, N.E.;Kim, J.S.;Joo, S.T.
    • Journal of Animal Science and Technology
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    • v.46 no.5
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    • pp.821-832
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    • 2004
  • A total of 80 pigs were used to investigate the effect of dietary glycine betaine(N,N,N-trimethylglycine) on pork quality during cold storage. About 70 kg pigs were randomly a1loted into one of four experimental diet groups(0%, 0.2%, 0.4% and 0.6% glycine betaine). Pigs were slaughtered at approximately 110 kg live weight, and pH, color(CIE $L^* a^* b^*$), shear force, sarcomere length, lipid oxidation and composition of fatty acid were measured in pork loin for 13 days of cold storage. The concentration of glycine betaine in pork loin was significantly increased(P<0.05) with increasing of glycine betaine level in diet. Pork loins from dietary betaine groups showed significantly higher muscle pH and lower CIE $b^*$ values compared to control group after 13 days of storage. There were significant differences in shear force values among pork loins from diet groups at 24 hrs postmortem. However, pork loins from control diet showed longer sarcomere length than those of dietary betaine groups. Dietary glycine betaine increased the ratio of saturated fatty acids and decreased unsaturated fatty acids in pork loins. Especially the ratios of linoleic and myristic acid were decreased with increasing dietary betaine level. However, dietary glycine betaine did not affect lipid oxidation (TSARS) and sensory evaluation during cold storage.

Effects of Salinity Stress on the Composition of Free Amino Acids of the Pacific abalone Haliotis discus discus (염분 스트레스가 둥근전복 Haliotis discus discus의 유리아미노산 조성에 미치는 영향)

  • Yang, Hyun-Sung;Park, Kyung-Il;Hong, Choong-Hee;Choi, Kwang-Sik
    • Journal of Aquaculture
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    • v.21 no.4
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    • pp.218-225
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    • 2008
  • Changes in 13 free amino acids (FAA) of Haliotis discus discus exposed to various salinities were investigated using a high performance liquid chromatography (HPLC). Taurine, glycine and alanine are three major contributors to the total FAA in the gill tissues of H. discus discus. Concentration of taurine was 114 imol/g dry tissue weights accounting for 76.64% of total FAA in H. discus discus. Levels of most FAAs in H. discus discus exposed to low and high salinities for 24 h decreased dramatically. Taurine concentration was slightly increased in the samples exposed to 20 psu and 25 psu for 48 h, and greatly increased after 120 h exposure. After 48 hrs exposure to 20 psu, 25 psu, 30 psu and 40 psu, methionine in H. discus discus was not detected; no methionine was detected in the sample exposed to 20 psu, 25 psu, 30 psu and 40 psu after 120 h of exposure. Taurine:glycine ratio increased depending upon hyper-hypoosmotic condition as well as period of osmotic stress. These data indicate that taurine, glycine and methionine play important role in regulating osmotic stress in H. discus discus. This study suggesting that FAA analysis is a useful tool to diagnose osmotic stress to H. discus discus.

Preparation and characterization of La0.8Sr0.2Ga0.8Mg0.1Co0.1O3-δ electrolyte using glycine-nitrate process (Glycine nitrate process로 합성된 La0.8Sr0.2Ga0.8Mg0.1Co0.1O3-δ 전해질의 제조 및 특성평가)

  • Ok, Kyung-Min;Kim, Kyeong-Lok;Kim, Tae-Wan;Kim, Dong-Hyun;Park, Hee-Dae;Sung, Youl-Moon;Park, Hong-Chae;Yoon, Seog-Young
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.23 no.1
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    • pp.37-43
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    • 2013
  • Conductivity of LSGMC materials were affected by secondary phase segregation, composition and synthetic route. $La_{0.8}Sr_{0.2}Ga_{0.8}Mg_{0.1}Co_{0.1}O_{3-{\delta}}$ (LSGMC) powders were prepared using the glycine nitrate process to produce high surface area and compositionally homogeneous powders. The powders were synthesized with different 0.5, 1, 1.5, 2, 2.5 of glycine/cation molar ratios. A single perovskite phase from the synthesized powders was characterized with X-ray diffraction patterns. The obtained sintered pellets showed the dense grain microstructure. In case of 1.5 molar ratio, its density was higher than the others. The electrical conductivity measured at $800^{\circ}C$ was observed to be 0.131 $Scm^{-1}$. In addition, the linear thermal expansion behavior was indicated between $25^{\circ}C$ and $800^{\circ}C$.

Computational Chemistry Study of CO2 Fixation and Cyclic Carbonate Synthesis Using Various Catalysts (촉매를 이용한 이산화탄소 고정화 및 고리형 카보네이트 합성반응에 대한 계산화학적 해석)

  • An, Hye Young;Kim, Min-Kyung;Jeong, Hui Cheol;Eom, Ki Heon;Won, Yong Sun
    • Clean Technology
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    • v.22 no.1
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    • pp.35-44
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    • 2016
  • In this study, a computational chemistry methodology called as molecular modeling was been applied to explain several experiment results mechanistically. The reaction chosen for this study was to remove carbon dioxide, known as a primary greenhouse gas, by an epoxide via the carbon dioxide fixation to produce carbonates. This reaction inherently needs the use of catalysts because it has a significantly high activation barrier (55~59 kcal/mol). Among various types of catalysts, we studied in zeolitic imidazolate framework 90 (ZIF-90)/ionic liquid immobilized ZIF-90 (IL-ZIF-90), polystyrene-supported quaternized ammonium salt, KI/KI-glycine, and dimethylethanolamine (DMEA). First, probable reaction pathways were proposed based on calculated energetics by computational chemistry. The energetics was then used for the thermodynamic interpretation on the activity of catalysts. In the case of ZIF-90/IL-ZIF-90 and KI/KI-glycine, IL-ZIF-90 and KI-glycine showed better yields compared to their counterparts. The calculation proposed interesting results that it is not from the lowering of activation energy but from the unstable intermediates of ZIF-90 and KI-glycine. For DMEA, the calculated activation energy was ~42 kcal/mol, much lower than that of the non-catalytic reaction. A possible reaction pathway was located to confirm the interaction between −NH group from ammonium and oxygen from epoxide for polystyrene-supported quaternized ammonium salt.