Publications by authors named "Hyo-Won Choi"

Fig (Ficus carica L.) belonging to the Moraceae family is cultivated worldwide, with its primary production areas located in the Mediterranean region (Tous and Fergusen 1996). Yeongam-gun is a significant region for fig cultivation in Korea, accounting for 42% of the country's total fig cultivation area with approximately 1,400 fields (453ha, production yield 6000 tons).

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Article Synopsis
  • Chili (Capsicum annuum L.) is a valuable global crop, particularly in South Korea, where it faces significant economic losses due to anthracnose caused by various Colletotrichum species.
  • In August 2022, unusual symptoms like sunken black lesions were observed on chili fruits in Yereonggwang, affecting about 1% of the fruits in a tested area.
  • To identify the pathogen, fruits were collected and treated to isolate fungi, leading to five isolates identified as Colletotrichum spp., with their characteristics matching reported features of C. sojae.
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Anthracnose, a destructive fungal disease, poses a significant threat to chili pepper (Capsicum annuum L.) production worldwide (de Silva et al. 2019).

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Amaranth ( spp. L) is not native to South Korea but is cultivated in small scales for ornamental purposes as well as leafy vegetables and pseudo cereals. In this study, a new species within the genus was isolated from amaranth, showing stem rot symptoms from a farmer field in Hwaseong, South Korea.

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Legumes are primarily grown agriculturally for human consumption, livestock forage, silage, and as green manure. However, production has declined primarily due to fungal pathogens. Among them, this study focused on Fusarium spp.

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Chili pepper ( spp.) is an important crop in South Korea and is widely used in Korean cuisine, cultivated across a land area of roughly 29.8 thousand hectares, with a total production of 69 thousand tons (Lee et al.

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(SMV) is a member of the genus in the family . Legume crops are often infected by SMV. SMV has not been naturally isolated from sword bean () in South Korea.

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Medikus, a perennial vine legume native to North America, is known as 'Indian potato' or 'Apios' for their underground tubers that are used for human consumption in Korea (Choi et al., 2017). These tubers are known to be rich in isoflavones as well as other secondary products to have known several medicinal properties (Chu et al.

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Lettuce ( L.) is a vegetable belonging to the family Asteraceae, and one of the major leafy vegetables in Korea. Lettuce has long been consumed as a fresh vegetable.

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Radish ( L.) is an important crop grown in Korea primarily for its use in kimchi, and is cultivated on an area of about 23,000ha. In September 2016, radish leaves were observed with yellowing and wilting symptoms in Gangneung (37.

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Soybean ( L.) is one of the most important crops worldwide. In South Korea, three species of have been reported as causal pathogens of Fusarium wilt of soybean (KSPP, 2021).

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Polygonatum odoratum var. pluriflorum, called "Dunggulle", is cultivated in East Asia to obtain rhizomes. In Korea and China, these rhizomes are used in traditional teas, health beverages, and herbal medicines (Zhao and Li, 2015).

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Perilla ( var. ), a member of the family , is an annual herbaceous plant native to Asia. Its fresh leaves are directly consumed and its seeds are used for cooking oil.

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Sorghum ( (L.) Moench) is one of the top five cereal crops in the world, but the cultivation area in Korea is estimated to be about 3,000 ha (MIFFAF, 2012). In August 2014, anthracnose symptoms on sorghum leaves were observed in two fields in Yecheon (36.

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The strains 17E-042, 17E-039, and NC13-171 belong to Ascomycota and were isolated from soil collected from Sancheong-gun and Yeongam-gun, Korea. The strain 17E-042 produced white mycelial colonies that developed a sienna color with a round margin on potato dextrose agar (PDA), and the reverse side developed a light sienna color. Morphologically, this strain was similar to the strains of and , but the shorter conidial size of the newly identified strain (17E-042) was distinct.

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Cabbage (Brassica oleracea var. capitate L.) is an important vegetable crop that is widely cultivated throughout the world.

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Chinese cabbage () is one of the most important vegetables in Korea due to its role as the main ingredient for the making of Kimchi. In June 2014, disease symptoms of leaves wilt, dry, and drop off on Chinese cabbage were observed in a Chinese cabbage farm located at Taebeak (37°26'50.7"N 128°95'50.

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Background: The relationship between the lateral deviation of chin and the upper and middle facial third asymmetry is still controversial. The purpose of this study is to evaluate the correlation of upper and middle facial third asymmetry with lateral deviation of chin using 3-dimensional computed tomography. The study was conducted on patients who underwent orthognathic surgery from January 2016 to August 2017.

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Stroke is a life threatening event that is expected to more than double over the next 40 years. Atrial fibrillation (AF) has been reported as a strong independent risk factor for stroke. We have previously shown that a hemodynamic perturbation by AF or reduced cardiac output and cycle length may have a significant impact on clot trajectory and thus embolic stroke propensity through the left common carotid artery using an idealized aortic arch model.

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Although the clinical range of interventions for coronary arteries is about 2 to 5 mm, the range of diameters of peripheral vasculature is significantly larger (about 10 mm for human iliac artery). When the vessel diameter is increased, the spacing between excitation electrodes on a conductance sizing device must also increase to accommodate the greater range of vessel diameters. The increase in the excitation electrodes distance, however, causes higher parallel conductance or current losses outside of artery lumen.

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A novel Gram-positive, oval-shaped, non-motile bacterium designated strain 16F1L was isolated from sediment collected from the Han River in Seoul, Republic of Korea. Based on the 16S rRNA gene sequence (1,448 bp), this strain was identified as a member of the genus Deinococcus that belongs to the class Deinococci. Similarities in the 16S rRNA gene sequence were shown with Deinococcus daejeonensis MJ27 (99.

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Seed sterilization is essential for preventing seed borne fungal diseases. Sterilization tools based on physical technologies have recently received much attention. However, available information is very limited in terms of efficiency, safety, and mode of action.

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Atrial fibrillation (AF) is a dysfunction of heart rhythm and represents an increased predisposition to ischemic stroke in AF patients. It has been shown that the AF-induced hemodynamic conditions may contribute to the increased embolic propensity through the carotid arteries. We simulated a stroke-prevention device with a unique strut structure to deflect the trajectory of a blood clot to the carotid artery.

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Several postharvest diseases of table grapes (Vitis vinifera) occur during storage, and gray mold rot is a particularly severe disease because the causal agent, Botrytis cinerea, grows at temperatures as low as 0℃. Other postharvest diseases, such as those caused by Penicillium spp. and Aspergillus spp.

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