• Title/Summary/Keyword: Dendrobium monile

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Studies on Aseptic Culture of Seed in Dendrobium Monile I. Effects of Basal Media and Growth Regulators on Germination of Seeds and Growth of Plantlet (한약자원식물인 Dendrobium monile 종자의 무균배양에 관한 연구 I. 기본배지 및 생장조절 생질이 종자의 발아와 유묘 생육에 미치는 영향 ( Studies on Aseptic Culture of Seed in Dendrobium Monile I. Effect of Basal Media and Growth Regulators on Germination of Se)

  • 최성규
    • Korean Journal of Plant Resources
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    • v.1 no.1
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    • pp.88-92
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    • 1988
  • The study was conducted to determine the optimal basal media and the concentration of plant growth regulator for germination of seeds and growth of plantlet from Dendrobium monile. The results obtained were summarized as follows. Germination was similar in light and dark condition, but the growth of plantlet after germination was better under dark than under light condition in several media. Germination was best in Hyponex and Kyoto solution medium among the 9 media tested. The number of roots/shoot was most in the Hyponex medium containing 0,1ppm NAA and 1.Oppm BA.

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Antioxidative activity of some natural products which have been orientally used as ophthalmic drugs (한방에서 안질환에 사용되어 온 천연물들의 항산화 작용)

  • Im, Sung Hun;Lee, Sun Hee;Lee, Heum-Sook;Park, Mi-Jung
    • Journal of Korean Ophthalmic Optics Society
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    • v.10 no.4
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    • pp.365-373
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    • 2005
  • Antioxidative activities of methanol extracts of 7 natural products which have been orientally used or studied as ophthalmic drugs were investigated. All of 7 extracts assayed - Rubus coreanus, Dendrobium monile, Eriocaulon sieboldianum, Ligustrum japonicum, Cassia tora, Cicadae Periostacum and Polygonatum odoratum var pluriflorum had some electron-donating ability to OPPH radicals, in which R. coreanus and D. monile showed strong activity as similar as ascorbic acid or BHT. At the concentration of $200{\mu}g/m{\ell}$, methanol extract of L. japonicum showed superoxide dismutase-like activity the same as 0.1 mM ascorbic acid and methanol extract of R. coreanus inhibited effectively the production of ABTS radical produced by $H_2O_2$. Furthermore, methanol extract of C. tora showed the highest nitrite scavenging ability. The inherent antioxidative activities of these natural products appear to be responsible for its ophthalmic effects.

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