A new eusirid amphipod, , from Jeju Island, Korea is described with a detailed description and illustrations. shows common features with the five known eusirid amphipods Stephensen, 1944, Bousfield & Hendrycks, 1995, Bousfield & Hendrycks, 1995, Chevreux, 1906, and Pirlot, 1934, such as the mandibular palp article 3 bearing a group of setae laterally. However, this new species is differentiated by the combination of the following characteristics: the eyes are poorly developed, the propodus on pereopod 4 is slightly shorter, the inner margin of dactylus on pereopod 4 is swollen, the length of pereopods 5-7 is moderate, the urosomite 1 has a dorsal protrusion distally, and the telson is shallowly cleft. This is the first record of the genus Krøyer, 1845 from Korean waters.
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http://dx.doi.org/10.3897/zookeys.640.10630 | DOI Listing |
Sci Rep
January 2025
Department of Crop Science, Kyungpook National University, Sangju, 37224, Kyungpook, South Korea.
The genus Vandenboschia exhibits significant diversity, driven by complex hybridization events and varying ploidy levels in the natural habitats of Korea, leads to misidentifications that obscure its true distribution and classification. To address this issue, the present study employed morphological, cytological, and genotype analyses to clarify the taxonomical circumscription and distribution patterns of the Vandenboschia radicans complex in Korea. The V.
View Article and Find Full Text PDFPlant Dis
December 2024
Korea University, Environmental Science & Ecological Engineering, Seoul, Seoul, Korea (the Republic of), 02841;
Cerastium glomeratum Thuill., known as sticky mouse-ear chickweed, is native to Europe and has become naturalized in the wild on most continents. After its accidental introduction to Korea around the 1980s, it quickly became one of the dominant invasive weeds on the Korean peninsula and is now considered a significant threat to the Korean agroecosystem (Park et al.
View Article and Find Full Text PDFBiomol Ther (Seoul)
January 2025
Department of Biochemistry, College of Medicine, and Jeju Natural Medicine Research Center, Jeju National University, Jeju 63243, Republic of Korea.
γ-Radiation resistance is a major obstacle to the success of radiotherapy in colorectal cancer. Antioxidant-related factors contribute to resistance to radiation therapy and, therefore, are targets for improving the therapeutic response. In this study, we evaluated the molecular mechanisms underlying γ-radiation resistance using the colorectal cancer cell line SNUC5 and γ-radiation-resistant variant SNUC5/RR, including analyses of the role of nuclear factor erythroid 2-related factor 2 (NRF2), a transcription factor that regulates antioxidant enzymes, and related epigenetic regulators.
View Article and Find Full Text PDFPhytomedicine
December 2024
Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea. Electronic address:
Background: Osteoporosis, a prevalent bone disorder, results in reduced bone mineral density and mass. With minimal side effects, medicinal plant-based natural remedies are increasingly explored for osteoporosis. However, the osteogenic potential of Tagetes erecta L.
View Article and Find Full Text PDFPlant Pathol J
December 2024
Sustainable Agriculture Research Institute, Jeju National University, Jeju 63243, Korea.
Fire blight caused by Erwinia amylovora is one of the destructive diseases in the family of Rosaceae plants, including apple and pear, in the world. Since the first report in 2015, the number of infected farms and area steadily increased in Korea. In case of eradication failure against this disease, protection strategies using both chemicals and biocontrol agents should be established.
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