Publications by authors named "Tae-Ryong Kwon"

Article Synopsis
  • - Passiflora latent virus (PLV) has been identified in various countries and was found in leaves from persimmon orchards in Korea, showing symptoms like mosaic patterns and necrosis.
  • - High throughput sequencing of the pooled leaf samples revealed 12 contigs linked to PLV, covering about 61.6% of its genome and showing significant genetic similarity to known PLV isolates.
  • - Confirmatory tests using RT-PCR detected PLV in two out of 21 trees but found none in asymptomatic plants, with subsequent sequencing showing high identity to existing PLV sequences.
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Article Synopsis
  • Tomato spotted wilt virus (TSWV) is a major threat to chrysanthemum crops, with a survey in South Korea revealing that 70.77% of tested plants were infected.
  • The presence of viruliferous thrips, specifically Frankliniella occidentalis, was associated with the high incidence of TSWV, as 72.96% of collected thrips also tested positive for the virus.
  • A combined treatment using soil-dwelling predatory mites (Stratiolaelaps scimitus) and a mixture of four essential oils significantly reduced both thrip populations and the incidence of TSWV, outperforming traditional chemical insecticide treatments.
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Recent studies have reported that the aerial parts of ginseng contain various saponins, which have anti-oxidative, anti-inflammatory, and anti-obesity properties similar to those of ginseng root. However, the leaf extracts of Korean ginseng have not yet been investigated. In this study, we demonstrate the anti-obesity effects of green leaf and dried leaf extracts (GL and DL, respectively) of ginseng in high-fat diet (HFD)-induced obese rats.

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Endophytic fungi were isolated from various tissues (root, stem, petiole, leaf, and fl ower stalk) of 3- and 4-year-old ginseng plants (Panax ginseng Meyer) cultivated in Korea. The isolated endophytic fungi were identified based on the sequence analysis of the internal transcribed spacer (ITS), 1-5.8-ITS 2.

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An light-emitting diode (LED)-based light source was used as a monochromatic light source to determine the responses of raw ginseng roots (Panax ginseng Meyer) to specific emission spectra with respect to the production of ginsenosides. The ginsenoside content in the ginseng roots changed in response to the LED light treatments at 25℃ relative to the levels in the control roots that were treated in the dark or at 4℃ for 7 d. Ginseng roots were exposed to LEDs with four different peak emission wavelengths, 380, 450, 470, and 660 nm, in closed compartments.

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