Publications by authors named "Kyunghoan Im"

Black ginseng (BG) has better health benefits than white ginseng. The intake of BG changes the levels of metabolites, such as amino acids, fatty acids, and other metabolites. However, there is no research on the effect of BG extract intake on the metabolic profile of dog serum.

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Intake of probiotic cheese improves the intestinal health of humans and animals. However, metabolic changes in the intestines of dogs in response to the ingestion of probiotic cheese have not been evaluated. Thus, we aimed to determine the metabolic changes in healthy beagle dogs fed queso blanco cheese with added KACC 92293 and KACC 91563 (QCLB) and to identify potential fecal biomarkers to distinguish the metabolic changes based on intake of probiotic cheese through metabolomics approaches.

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Barsine Walker, 1854 is one of the largest quadrifid Erebidae genera within subtribe Nudariina (Erebidae, Arctiinae, Lithosiini). It was established for its type species Barsine defecta Walker, 1854 (by subsequent designation, Kirby (1892)) from Nepal. The genus has in the past been treated as a synonym or subgenus of Miltochrista Hübner, [1819] (Hampson 1900; Strand 1917; Reich 1937; Daniel 1951; 1952; 1955; Inoue 1980; Holloway 1982; Fang 1991; 2000; Černý 1995).

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Miltochrista Hübner is one of the largest genera of lichen-moths (family Erebidae, subfamily Arctiinae, tribe Lithosiini) including more than 160 valid species and widely distributed in Oriental and Palaearctic Regions. The genera Miltochrista and the related Asura Walker for a long time were treated in a wide sense. Hampson (1900) considered the generic names Barsine Walker, Ammatho Walker, Sesapa Walker, Cabarda Walker, Mahavira Moore, Korawa Moore and Gurna Swinhoe as synonyms of Miltochrista, and genera such as Lyclene Moore, Nepita Moore, Cyme Felder and Adites Moore under Asura.

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Nitrogen (N) is a macronutrient important for the survival of plants. To investigate the effects of N deficiency, a time-course metabolic profiling of radish sprouts was performed. A total of 81 metabolites-including organic acids, inorganic acid, amino acids, sugars, sugar alcohols, amines, amide, sugar phosphates, policosanols, tocopherols, phytosterols, carotenoids, chlorophylls, and glucosinolates-were characterized.

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A plant-specific gene was cloned from melon fruit. This gene was named downward leaf curling (CmDLC) based on the phenotype of transgenic Arabidopsis plants overexpressing the gene. This expression level of this gene was especially upregulated during melon fruit enlargement.

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Arabidopsis leaves treated with simulated acid rain (SiAR) showed phenotypes similar to necrotic lesions caused by biotic stresses like Pseudomonad infiltration. Exposure of Arabidopsis to SiAR resulted in the up-regulation of genes known to be induced by the salicylic acid (SA)-mediated pathogen resistance response. The expression of enhanced disease susceptibility (EDS), nonexpressor of PR (NPR) and pathogen-related 1 (PR1), all of which are involved in the salicylic acid signaling pathway, were increased after SiAR exposure.

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Sucrose phosphate synthase (SPS) is responsible for sucrose synthesis in photosynthetic tissues. We have detected SPS expression in non-photosynthetic tissues. It was predominantly expressed in the basal region of developing endosperm, suggesting that sucrose is re-synthesized in this region, where sucrose is unloaded from the phloem and hydrolyzed into glucose and fructose.

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Arabidopsis Sei-O ecotype was found to be hypersusceptible to the BCTV-Logan strain in that it developed very severe symptoms, including severely deformed inflorescences with the callus-like structure, and accumulated high level of viral DNA. Microscopic studies of the BCTV-induced cell divisions demonstrated that the activation of cell divisions was preceded by the phloem disruption and the callus-like structure seemed to be originated from the cortex nearby disrupted phloem. We have further defined the callus-like structure formed by BCTV infection using molecular and histochemical analyses.

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