• Title/Summary/Keyword: Angel's trumpet

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Effects of Drenching Treatment of Growth Retardants on Growth in Datura suaveolens 'Orange Star' (생장억제제 관주처리가 'Angel's Trumpet'의 생육에 미치는 영향)

  • Kim, Ju Hyoung;Kim, Si Dong;Lee, Hee Doo;Kim, Tae Jung;Yun, Tae;Min, Kyeong Beom;Paek, Kee Yoeup
    • FLOWER RESEARCH JOURNAL
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    • v.17 no.4
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    • pp.231-236
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    • 2009
  • This study was conducted to identity the effect of plant growth retardants such as paclobutrazol, ethephon, uniconazole and daminozide by drenching on growth of Datura suaveolens 'Orange Star'. Datura suaveolens 'Orange Star' treated with the growth retardants except ethephon was gradually shortened in proportion to the treated concentration of growth retardants. Especially, uniconazole treatment dramatically short ed stem height and width of plant, diminished leaf width and length and also shortened the days to flowering, and increased flowering times per year. On the contrary, ethephon treatment showed the opposite affect such as higher plant width and plant height, increased days to flowering, and decreased the number of flower times. Dwarfing by plant growth retardants in Datura suaveolens 'Orange Star' was effective in orders of uniconazole, daminozide and paclobutrazol.

Characterization of Brugmansia mosaic virus Isolated from Brugmansia spp. in Korea (국내 브루그만시아에서 분리한 Brugmansia mosaic virus의 특성)

  • Park, Chung Youl;Kim, Bong-Sub;Nam, Moon;Lee, Min-A;Baek, Da-Som;Bae, Yang Su;Park, Eun-Hye;Kim, Jeong-Sun;Choi, Jong-Yoon;Lim, Seungmo;Moon, Jae Sun;Lee, Su-Heon
    • Research in Plant Disease
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    • v.20 no.4
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    • pp.307-313
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    • 2014
  • In May 2013, an angel's trumpet leaves showing mosaic and malformation symptoms were collected from Suwon city, Gyeonggi-do. An analysis of the collected sample by transmission electron microscopy observation showed filamentous rod particles of 720-800 nm in length. On the basis of the these observations, we performed PCR against three reported Potyviruses (Brugmansia mosaic virus, Colombian datura virus and Brugmansia suaveolens mottle virus), and the sample was positive for BruMV. Pathogenicity and host range test of BruMV was determined by mechanical inoculation. Solanaceae (tobacco, tomato and eggplant) and Amaranthaceae (ground cherry) appeared typical virus symptoms. To determine coat protein of this virus, we designed specific primer pairs, and performed PCR amplification, cloning, and sequencing. Phylogenetic analysis showed that BruMV-SW was most closely related to BruMV isolate SK. Comparison of the BruMV-SW coat protein nucleotide sequences showed 92% to 99% identities to the other BruMV isolates.

The real nature of the West Wind in Shelley's Ode to the West Wind (셸리의 Ode to the West Wind에 나타난 서풍의 실체)

  • Jeon, Woong-Ju
    • English Language & Literature Teaching
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    • no.5
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    • pp.259-272
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    • 1999
  • The real nature of the west wind in Shelley's Ode to the West Wind is the divine providence which influences all things in this world- that is, whether they are on land, in the sky, or in the sea. The divine providence is the manifestation of something beyond the present and tangibel object. In the first stanza, the real nature of the west wind in this poem is the wild wind, the breath of Autumn's being, the unseen presence, the azure sister of the Spring, a Destroyer, a Preserver, the winged seed, a creator, a philosopher, a poet, Shelley, and the wild spirit moving everywhere. In the second stanza, the real nature of the west wind in this poem is cloud, the angel of rain and lightning, fierce Maenad, the approaching storm, the congregated might, the black rain, the fire, hail, solid atmosphere, the tremendous power of revolutionary change, and the power that influences all things in the sky. In the third stanza, the real nature of the west wind in this poem is the voice that makes the oozy woods which wear the sapless foliage of the Atlantic, and the power makes the blue Mediterranean wake from his summer dream. the fit medium of expression which Shelley's soul was seeking for, Shelley's passion, Shelley's partner, Shelley's co-worker, and a strong presence which influences in the sea. In the fourth stanza, the real nature of the west wind in this poem is the mightest presence, the power, the strength, the free presence, the uncontrollable, the wanderer over heaven, a vision, the tameless, the swift, the proud and the God who can save Shelley form the heavy weight of hours and lift Shelley as a wave a leaf, a cloud. In the fifth stanza, the real nature of the west wind in this poem is the mighty harmony, the fierce Spirit, Shelley's spirit, the impetuous spirit, incanation of this verse, spark, the trumpet of a prophecy, the Providence which can make the Winter depart and call Spring, and the prophet. To conclude, the real nature of the west wind in this poem is Shelley's accumulated insight that he visulize his impulse of revolutionary thought.

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Anti-Inflammatory Effect of Flavonoids from Brugmansia arborea L. Flowers

  • Kim, Hyoung-Geun;Jang, Davin;Jung, Young Sung;Oh, Hyun-Ji;Oh, Seon Min;Lee, Yeong-Geun;Kang, Se Chan;Kim, Dae-Ok;Lee, Dae Young;Baek, Nam-In
    • Journal of Microbiology and Biotechnology
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    • v.30 no.2
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    • pp.163-171
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    • 2020
  • Brugmansia arborea L. (Solanaceae), commonly known as "angel's trumpet," is widely grown in North America, Africa, Australia, and Asia. It has been mainly used for ornamental purposes as well as analgesic, anti-rheumatic, vulnerary, decongestant, and anti-spasmodic materials. B. arborea is also reported to show anti-cholinergic activity, for which many alkaloids were reported to be principally responsible. However, to the best of our knowledge, a phytochemical study of B. arborea flowers has not yet been performed. Four flavonol glycosides (1-4) and one dihydroflavanol (5) were for the first time isolated from B. arborea flowers in this study. The flavonoids showed significant antioxidant capacities, suppressed nitric oxide production in lipopolysaccharide (LPS)-treated RAW 264.7 cells, and reduced inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX-2) protein production increased by LPS treatment. The contents of compounds 1-4 in n-BuOH fraction were determined to be 3.8 ± 0.9%, 2.2 ± 0.5%, 20.3 ± 1.1%, and 2.3 ± 0.4%, respectively, and that of compound 5 in EtOAc fraction was determined to be 12.7 ± 0.7%, by HPLC experiment. These results suggest that flavonol glycosides (1-4) and dihydroflavanol (5) can serve as index components of B. arborea flowers in standardizing anti-inflammatory materials.