열대거세미나방의 저온 내성에 관여하는 분자적 기작을 규명하기 위하여, 4°C 저온 처리 후 뇌 조직을 대상으로 전사체 분석을 수행하였 다. 그 결과 총 266,051개의 유니진(unigene)이 확보되었으며, 저온 처리군에서 6,917개의 유전자가 차등발현을 보였다. 저온 반응에서는 상향 조절 유전자보다 하향 조절 유전자가 전반적으로 더 많이 나타났다. 차등발현 유전자 중에서는 저온 스트레스 반응과 관련있는 단백질 안정화, 세포막 안정성, 및 에너지 대사 관련 유전자들이 다수 확인되었다. 특히 Hsp와 PGPEP1은 50배 이상 상향 조절되었고, RN7SK는 저온 처리군에 서 175배 수준으로 현저히 하향 조절되었다. 주요 차등발현 유전자에 대한 정량적 RT-PCR 분석 결과, RNA-Seq 분석과 일치하는 발현 경향이 확인되었다. 본 연구는 열대거세미나방의 저온 적응에 대한 분자생리학적 이해를 확장하며, 저온 저항성 및 환경 적응 연구를 위한 후보 분자마커 를 제시한다.

This study analyzed quarantine inspection records for imported ginger seed rhizomes (Zingiber officinale) in Korea from 2015 to 2024, utilizing the Pest Information System (PIS) of the Animal and Plant Quarantine Agency. The aim was to characterize the occurrence and trends of plant-parasitic nematodes associated with ginger planting and to provide management implications for risk-based phytosanitary measures. A total of 1,327 cargo consignments were analyzed. Plant-parasitic nematodes were found in 496 consignments (37%), comprising 13 different nematode taxa. Two regulated taxa, Meloidogyne spp. and Pratylenchus spp., were identified in 149 cases, leading to the destruction of the corresponding consignments in accordance with quarantine regulations. The remaining 11 taxa (347 cases) were classified as non-quarantine pests and were released. Root-knot nematodes (Meloidogyne spp.) were the most prevalent, accounting for over 80% of all detections, with M. incognita (191 cases), Meloidogyne spp. (128 cases), and M. javanica (68 cases) being the most common. Although Gunsan Port had the highest number of consignments, the detection rate was relatively higher at Incheon Port, suggesting possible differences among production areas or exporters. Overall, the findings indicate that imported ginger seed rhizomes can serve as a pathway for nematode introduction. To reduce the risk of field-level transmission, it is recommended to enhance pre-export lot management and implement nematode suppression measures, along with providing post-import guidance for growers, such as hot-water treatment or approved dips before planting.

국제무역의 확대는 농산물과 화훼류의 이동을 증가시켜 해충의 확산 위험을 높이고 있다. 그중 총채벌레는 원예 산업에서 식물에 심각한 피해 를 유발하는 주요 해충으로, 이를 방지하기 위한 검역의 중요성이 날로 강조되고 있다. 최근 10년간(2015-2024년) 수입절화에서 검출된 총채벌레 목(Thysanoptera)의 검출 기록을 분석한 결과, 총 누적 검출 건수는 13,960건으로 확인되었으며, 이는 수입 절화류에서 검출된 전체 해충의 52% 를 차지하는 것으로 나타났다. 가장 많이 검출된 품목은 장미(10.8%)와 클레마티스(9.7%) 절화였으며, 검출 빈도가 가장 높은 국가는 네덜란드 (50.6%)와 중국(13.9%)이었다. 아울러 DNA 바코드 분석을 활용하여 총채벌레목의 정확한 동정을 시도하였다. 본 연구를 통해 수입 절화류에 대 한 실험실 정밀검역의 기초 자료로 활용할 수 있는 데이터를 제공하고자 하였다.

This study analyzes research trends in mushrooms using social network analysis (SNA) and Word2Vec analysis based on 654 papers published in the journal of mushrooms. By tracking changes in research trends through centrality indices of key keywords and temporal keyword associations, it was found that in the early period (2011–2015), research primarily focused on optimizing growth conditions. During the mid-period (2016–2020), studies on strain characteristics and disease resistance became more prominent. In the recent period (2021–2024), research on molecular biology and functional components has expanded significantly, with molecular biology research, substrate and cultivation environment studies, and quality and functional food research emerging as new research areas. Meanwhile, research on Pleurotus ostreatus has been the most active, whereas studies on other mushroom species remain relatively limited, indicating the need for a broader scope in future research. This study provides an in-depth review of the research trends and transformations in the journal of mushrooms, contributing to the discussion on its balanced development and future research directions.

Ganoderma lucidum, a fungus of significant scientific interest that encompasses a diverse array of bioactive compounds, has been extensively investigated for its potential health-promoting and disease-preventing properties. Ganodermanontriol, a triterpenoid, is the principal active component contributing to its biological activities. This study aimed to explore the anti-inflammatory properties of ganodermanontriol and to evaluate its potential as a functional ingredient. The expression of inflammatory mediators, including tumor necrosis factor (TNF)-α and inducible nitric oxide synthase (iNOS), and nitric oxide (NO) production was significantly inhibited in ganodermanontriol (1.25–5 μg/mL)-treated compared to that of untreated lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Additionally, the phosphorylation of mitogen-activated protein kinases (MAPK), specifically p38 and c-Jun N-terminal kinase (JNK), was markedly inhibited in ganodermanontriol (3–5 μg/mL)-treated cells. These findings indicate that ganodermanontriol possesses significant potential as both a prophylactic and therapeutic agent for immune-related disorders, owing to its ability to modulate inflammatory responses.

This study is to deal with the cause analysis and improvement ideas for breakage to hydraulic pipes mounted on self-propelled howitzers. Hydraulic piping is one of the core components of a hydraulic system. This is because in the case of devices that use hydraulic pressure as a power source, hydraulic oil is supplied through hydraulic piping to operate. Compared to the main hydraulic assembly, its importance is low, so there are not many studies or failure analysis cases on it. However, contrary to this, cases of hydraulic pipe failure account for a significant proportion of the total number of failures, requiring in-depth technical review. In this study, we aim to analyze the causes of failures in hydraulic pipes of self-propelled guns operated by the military and propose improvement measures. It is expected that this study will aid as a reference for problem solving when similar failures occur in the future.

We developed a new oyster mushroom cultivar named 'Dawon-tari', which has a longer stipe and higher yield than those of ‘sootari’.‘Dawon-tari’ was crossed by mating monokaryons isolated from ‘Sootari’ and ‘Daejang2ho’. The optimal temperature for mycelial growth was determined to be 20~25°C on potato dextrose agar medium, while the optimal temperatures for primordia formation and fruiting body growth were 15~17°C on a sawdust substrate. During bottle cultivation, the mycelial growth phase required approximately 26 days. Additionally, primordia formation required 5 days, and fruiting body growth took 4 days. The fruiting bodies exhibited a shallow funnel shape; were grayishbrown; and the stipes were characterized by a long, thin structure. The yield of fruiting bodies was 185 g per 1,100 mL bottle, which was 5% higher than that of ‘Sootari’.

In alignment with South Korea's “3020 Renewable Energy Expansion Plan,” this study focuses on the developing large-scale floating wind turbines. It addresses the challenges of increased size and cost in floating structures for wind turbines over 10MW. This paper details the preliminary design of a novel floating substructure utilizing composite materials(ie, EVA). Structural analysis was performed using ABAQUS, accounting for both typical and extreme wind conditions. Results from the analysis validate that the substructure design is adequately feasible for implementation.

Owing to its diverse range of bioactive compounds, Ganoderma lucidumhas garnered significant research attention for health promotion and disease prevention. Ganodermanondiol, which has a triterpenoid structure, is one of the major active compounds of G. lucidum. In the present study, the anti-inflammatory effects of ganodermanondiol were investigated to evaluate its usefulness as a functional ingredient. Ganodermanondiol (0.5–2 g/mL) significantly inhibited the production of nitric oxide (NO), the expression of the cytokines tumor necrosis factor (TNF)??and interleukin 6 (IL-6), and the expression of cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS) in lipopolysaccharide-induced RAW 264.7 (murine macrophage) cells. Ganodermanondiol (0.5–2 g/mL) also inhibited the phosphorylation of mitogen-activated protein kinase (MAPK) signal molecules, including p38 and c-Jun N-terminal protein kinase (JNK) in RAW 264.7 cells. Ganodermanondiol significantly inhibited the essential factors involved in the inflammatory responses of RAW 264.7 cells and would, therefore, serve as a potential prophylactic and therapeutic agent for immune-related diseases.

호박꽃과실파리(Z. scutellata)는 박과작물에 피해를 주는 중요한 해충이다. 현재 큐루어(Cuelure)는 국내에서 검역 대상 해충으로 규정된 오이과실파리, 타우과실파리, 및 퀸슬랜드과실파리와 더불어 호박꽃과실파리 수컷 성충의 예찰에 다양한 제형으로 활용되고 있다. 본 연구는 액 체, 고체, 및 왁스제형의 큐루어에 대한 호박꽃과실파리 수컷 성충의 야외 유인효과를 검증하기 위한 것으로 2021년 4월부터 10월까지 제주 2개 지역과 경북 1개 조사에서 2주 간격으로 모니터링하였다. 호박꽃과실파리의 발생밀도가 높은 제주지역에서는 7월부터 8월에 액체와 왁스제형의 큐루어에 호박꽃과실파리가 더 많이 유인되어 통계적인 유의차가 있었으나, 호박꽃과실파리의 발생밀도가 낮은 경북지역에서는 제형별 유인력 에 차이가 없었다. 야외조사 결과를 바탕으로 액체와 왁스제형의 큐루어가 호박꽃과실파리 수컷 성충 예찰에 권장되며, 이 두 제형의 큐루어에 유 인되는 검역 대상 과실파리류의 국내 예찰에 효과적일 수 있다.

Recently, with the increasing global demand for Ganoderma lucidum as a material for functional beverages, varieties with enhanced functionality are needed. As part of this effort, 10 strains were selected from a collection of 160 G. lucidum strains, based on their quantity and fruiting body characteristics. These included four strains collected in Korea, three in Japan, and three of unknown origin. Approximately 44% of the 1,290 hybrid strains were secured. After two rounds of bag cultivation in oak sawdust, three strains (G-20-4, G-20-5, and G-20-7) were ultimately selected for single-timbered cultivation. Among these, G-20-4 demonstrated the earliest harvesting with a large size and a bright cap. Additionally, this strain exhibited the highest levels of total glucan, β-glucan, total triterpenoid, total polyphenol, and total flavonoid content.

최근 수십 년간 전 세계는 경제발전과 수송수단의 향상으로 다양한 외래종이 침입할 수 있는 시대가 되었다. 외국산 농산물의 수입요구는 외 래종의 침입을 보다 용이하게 하며 이렇게 침입한 외래종은 국내 생물상의 교란을 야기한다. 식물검역의 목적은 외래해충으로부터 국내 농업환경 및 생태계를 보호하는데 있다. 본 연구에서는 농림축산검역본부의 병해충정보시스템에 기록된 자료를 통해 1996년부터 2020년까지 수입절화류 에서 발견한 해충 검출 동향을 분석하였다. 이 기간동안 총 69개국 159품목 147,160개에서 검출된 해충은 13,757건의 467종 (잠정규제해충 273 종, 관리해충 78종, 비검역해충 118종)이었다. 특히, 총채벌레목과 매미목 해충의 검출율이 전체의 80% 이상을 차지하여 수입 절화류에서 가장 많 이 발견되는 해충분류군으로 분석하였다.