https://repository.kopri.re.kr/handle/201206/13410 Thu, 12 Mar 2026 18:48:43 GMT 2026-03-12T18:48:43Z https://repository.kopri.re.kr/handle/201206/14506 Title: Study on polar ecosystem change by warming and adaptation mechanisms of polar organism Authors: Kim, Sanghee Wed, 26 Jul 2023 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/14506 2023-07-26T00:00:00Z https://repository.kopri.re.kr/handle/201206/14273 Title: High-Quality Genome Resource of a Novel Venturiaceae sp. KMAF11, Isolated from Diseased Colobanthus quitensis, an Antarctic Flowering Plant Authors: 김홍실; 유지현; Jesse Kaleku; 이예림; 박은숙; Lee, Hyoungseok; Kim, Han-Woo; Lee, Jungeun Abstract: In summary, a novel fungal strain, KMAF11, isolated from diseased Antarctic plants, is believed to belong to the Venturiaceae sp., a common phytopathogenic fungal group. This fungus may have been dormant in the leaves or rhizosphere of C. quitensis, an Antarctic flowering plant, but it is presumed to induce disease in C. quitensis due to a change in the habitat environment. Genomic information on latent pathogenic fungi associated with vascular plants in Antarctica has not yet been reported. In this study, we report the first high-quality genome dataset for this fungus. This dataset provides important information about the genes involved in the fungal lifestyle. Further studies of these genes will contribute to elucidating the molecular interactions between pathogenic fungi and plants inhabiting Earth’s extreme regions. Sun, 01 Jan 2023 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/14273 2023-01-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/14302 Title: The Safety and Efficacy of 1-Monoeicosapentaenoin Isolated from the Trebouxiophyceae Micractinium on Anti-Wrinkle: A Split-Face Randomized, Double-Blind Placebo-Controlled Clinical Study Authors: Ki Mo Kim; Kon-Young Ji; Yoon Jung Choi; Jong Beom Heo; Youn, Ui Joung; Kim, Sanghee; Ki-Shuk Shim; Joo Young Lee; Tae Soo Kim; Young Kyoung Seo; Gyu-Yong So; Sungwook Cha Abstract: The skin aging process is governed by intrinsic and extrinsic factors causing skin wrinkles, sagging, and loosening. The 1-monoeicosapentaenoin (1-MEST) is a component isolated from Micractinium, a genus of microalgae (Chlorophyta, Trebouxiophyceae). However, the anti-wrinkle effects of 1-MEST are not yet known. This study aimed to evaluate the anti-wrinkle effects of 1-MEST in vitro and in clinical trials. The cytotoxicity of 1-MEST was investigated in vitro using the MTS assay in human epidermal keratinocytes (HEKs). Expression of matrix metalloproteinase (MMP)-1 and MMP-9 was determined by ELISA in HEKs irradiated with UVB after treatment with 1-MEST. A split-face randomized, double-blind, placebo-controlled study was conducted to evaluate the safety and efficacy of 1-MEST. The study evaluated wrinkle parameters and visual assessment, self-efficacy and usability questionnaires, and adverse events. The study showed that the 1-MEST was not cytotoxic in HEKs, suppressed MMP-1 secretion and MMP-9 protein expression in HEKs irradiated with UVB. The wrinkle parameters and mean visual assessment score were significantly decreased in the test group after 12 weeks and differed from the control group. There were no significant differences in efficacy and usability. Adverse effects were also not observed. The 1-MEST showed anti-wrinkle properties to slow down or prevent skin aging. Sun, 01 Jan 2023 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/14302 2023-01-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/14741 Title: The dynamics of growth and maturation age in the scallop Adamussium colbecki in Tera Nova Bay, Antarctica Authors: Choi S.K.; Kang Y.H.; Moon K.; Seo I.-S.; Kim, Sanghee; Park S.R. Abstract: The endemic Antarctic scallop Adamussium colbecki, one of the most common bivalve species, plays an important ecological role in Antarctic ecosystems. In this study, we investigated the size frequency structure, shell height, and gonadosomatic index (GSI) of A. colbecki in coastal areas near Jang Bogo Antarctic Research Station in Terra Nova Bay. A generalized von Bertalanffy growth function was fitted to shell height-at-age measurements of 389 individuals (H∞ = 115.4 mm and K = 0.064 year- 1). Large-sized individuals (70-84 mm) of A. colbecki were ~2X as prevalent, accounting for more than 50% of the overall density. Individuals younger than 6 years showed a lower growth rate compared to that reported in previous studies. GSI indicated that sexual maturity of both females and males was observed in individuals over 50 mm shell height at the age of approximately 9 years. The maturity was delayed by two to four years when compared with previous data in Terra Nova Bay due to the low growth rates of the young population. Therefore, the low growth rate of young individuals and the delayed maturity age may have deleterious effects on population growth. The information reported here provides baseline scientific data that can be used to develop better informed management decisions and aid in defining an effective management strategy for Antarctic scallops. Sun, 01 Jan 2023 00:00:00 GMT https://repository.kopri.re.kr/handle/201206/14741 2023-01-01T00:00:00Z