• 제목/요약/키워드: Allomyrina dichotoma

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장수풍뎅이(Allomyrina dichotoma) 렉틴의 면역기능 증강효과 (Immunomodulating Effect of the Lectin from Allomyrina dichotoma)

  • 전경희;정미연;최수정;이종욱;박원학;조세훈;이승호;정시련
    • 생약학회지
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    • 제32권1호통권124호
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    • pp.31-38
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    • 2001
  • A lectin was purified from Allomyrina dichotoma (ADL) by physiological saline extraction, ammonium sulfate fractionation, anion exchange column chromatography on DEAE Sephadex A-50 and gel filtration column chromatography on Sephadex G-200. Several biochemical properties of ADL were characterized as follows: ADL from gel filtration column chromatography showed single band on SDS-PAGE. ADL agglutinated the erythrocytes of rabbit and human A, B, O, AB. Agglutinability was relatively stable at basic pH, and was stable at temperature below $40^{\circ}C$. Agglutinability was not affected by metal ions and EDTA. This lectin was proved to be a glycoprotein which contains 0.47% of sugars. The molecular weight of ADL was estimated to be 97,000 dalton by SDS-PAGE. By amino acid analysis, ADL exhibited high amounts of aspartic acid. The lectin's immunomodulating effect was measured as cytokine production. The productions of 5 cytokines $(IL-1{\alpha},\;IL-2,\;IL-6,\;IFN{\gamma}\;and\;TNF{\alpha})$ from peripheral blood mononuclear cells were measured by ELISA. The lectin induced the highest secretion of IL-2 at 8 hr, $TNF{\alpha}$ at 4 hr, and $IFN{\gamma}$ at 24hr, respectively. These results suggest that ADL can elicit the production of detectable cytokines from PBMC.

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Allomyrina Dichotoma Larva 추출물이 췌장 ${\beta}$-세포에서 streptozotocin에 의해 유도된 산화적 손상에 대한 보호효과 (Allomyrina Dichotoma Larva Extracts Protect Streptozotocin-induced Oxidative Cytotoxicity)

  • 김덕송;허진;유근창;채수철;이오선;이황희;이종빈;김종선
    • Environmental Analysis Health and Toxicology
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    • 제22권4호
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    • pp.349-355
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    • 2007
  • 장수풍뎅이 유충(Allomyrina dichotoma larva, ADL)은 중국의 전통 약재로서, 특히 항산화 효과가 우수하여 항당료 제재로 사용되고 있다. 본 연구에서는 이러한 ADL의 추출물을 이용하여 헴스터 췌장의 ${\beta}$-세포(HIT-T15)에서 Streptozotocin에 의해 유발된 산화적 손상에 대한 보호효과 및 그 작용기전을 조사하였다. ADL추출물은 처리농도 의존적으로 Streptozotocin에 의해 유발된 지질과산화 및 세포 내 자유산 소종의 양을 억제함으로서 ${\beta}$-세포의 산화적 스트레스에 의한 손상을 보호하였다. 또한 DNA laddering 방법을 사용하여 Streptozotocin에 의해 유발된 DNA 손상을 조사한 결과, ADL추출물 처리농도에 비례하여 Streptozotocin에 의해 유발된 DNA 손상이 감소하였다. 이러한 산화적 손상의 억제능 관련 작용 기전을 조사하기 위해 DPPH free radical 소거능을 실시하였다. 그 결과 ADL추출물 자체가 DPPH 자유 레디컬 소거능이 있음을 확인하였으며, 또한 플라스미드를 이용한 Single-strand break 방법을 통한 DNA 손상 보호능을 측정한 결과도 $Fe^{3+}$$H_2O_2$에 의해 유발된 DNA 손상이 ADL추출물 처리농도에 비례하여 감소하였다. 이러한 결과들을 종합하여 볼 때, 장수풍뎅이 유충의 추출물들이 자체의 레디컬 소거능 및 산화적 손상에 의한 DNA손상을 억제함으로써, Streptozotocin에 의해 유발된 산화적 손상을 억제할 수 있을 것이라 사료된다.

Biological Control Potential of Bacillus amyloliquefaciens KB3 Isolated from the Feces of Allomyrina dichotoma Larvae

  • Nam, Hyo-Song;Yang, Hyun-Ju;Oh, Byung Jun;Anderson, Anne J.;Kim, Young Cheol
    • The Plant Pathology Journal
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    • 제32권3호
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    • pp.273-280
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    • 2016
  • Most biocontrol agents for plant diseases have been isolated from sources such as soils and plants. As an alternative source, we examined the feces of tertiary larvae of the herbivorous rhino beetle, Allomyrina dichotoma for presence of biocontrol-active microbes. The initial screen was performed to detect antifungal activity against two common fungal plant pathogens. The strain with strongest antifungal activity was identified as Bacillus amyloliquefaciens KB3. The inhibitory activity of this strain correlated with lipopeptide productions, including iturin A and surfactin. Production of these surfactants in the KB3 isolate varied with the culture phase and growth medium used. In planta biocontrol activities of cell-free culture filtrates of KB3 were similar to those of the commercial biocontrol agent, B. subtilis QST-713. These results support the presence of microbes with the potential to inhibit fungal growth, such as plant pathogens, in diverse ecological niches.

장수풍뎅이의 생육특성에 관한 연구 (Bionomical characteristic of Allomyrina dichotoma)

  • 김하곤;강경홍
    • 한국응용곤충학회지
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    • 제44권3호
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    • pp.207-212
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    • 2005
  • 우리나라에서 서식하는 풍뎅이류 중에서 가장 큰 장수풍뎅이의 형태와 생육특성에 관하여 조사하였다. 성충은 야외에서 6월 하순부터 8월 하순까지 출현하며, 출현빈도가 가장 높은 시기는 7월 중순이고, 1년에 1회 발생하였다. 유충은 부엽토속에서 서식하며, 10월 하순까지는 모두 3령이 되어 월동하였다. 실내에서 암컷 1마리당 평균 24개를 산란하였고, $25^{\circ}C$$30^{\circ}C$에서 사육한 결과 알, 유충, 번데기 기간은 모두 높은 온도에서 짧았다. 성충의 수명은 암컷이, 집단사육 시 보다는 개별사육시에, 생육온도는 낮은 온도에서 더 길었다.

Purification and Identification of Paenibacillus sp., Isolated from Diseased Larvae of Allomyrina dichotoma (Linnaeus, 1771) (Coleoptera: Scarabaeidae) in Insect Farms

  • Kang, Tae Hwa;Han, Sang Hoon;Weon, Hang Yeon;Lee, Young Bo;Kim, Namjung;Nam, Sung Hee;Park, Hae Chul
    • International Journal of Industrial Entomology and Biomaterials
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    • 제25권2호
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    • pp.195-203
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    • 2012
  • In reared populations of Allomyrina dichotoma, commercial insects, the skin of last instar larvae was changed softer with opaque white, and infested grubs eventually died. To clarify the cause of the symptom, we collected the larvae of A. dichotoma from five farms and examined their intestinal bacterial florae using pyrosequencing technique. From those results, a member of Paenibacillus was found only in the larvae showing the symptom of disease. Through PCR analysis using a Paenibacillus specific primer set, we obtained the partial 16S rRNA gene sequence and confirmed the microbe as Paenibacillus sp. For clear identification, a whole guts was extracted from each larva showing the sign of the disease and incubated at $70^{\circ}C$ for 15 min to isolate spore forming bacteria. After then, each content of guts was cultured on $MYPGP_{NAL}$ agar medium($12.5{\mu}g/ml$ of nalidixic acid) at $30^{\circ}C$. The 16S rRNA gene sequence analysis for the isolated bacteria showed that they were closely related to P. rigui(97.9% similarity), to P. chinjuensis(96.1% similarity), and to P. soli(95.3% similarity). Additional tests including API test and cellular fatty acid composition analysis were performed, but the strain couldn't be identified at species level, suggesting it may represent novel species of the genus Paenibacillus.

장수풍뎅이 유충 내에 있는 전장 상피세포들의 미세구조 (Ultrastructure of the Foregut Epithelial Cells in the Scarab Beetle, Allomyrina dichotoma Linne)

  • 류재혁
    • Applied Microscopy
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    • 제35권3호
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    • pp.177-186
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    • 2005
  • 장수풍뎅이 (Allomyrina dichotoma; Dynastidae; Coleoptera)를 사육하여 종령 유충의 전장 상피를 구성하는 세포들에 대한 미세구조를 전자현미경으로 관찰하였다. 상피조직은 편상피 세포들이 단층의 점막상피를 이루었으며, 그 내면은 얇은 큐티클 층으로 덮여 있었다. 상피세포의 유리면 원형질막은 미세융모로 변형되었고, 기저 원형질막은 기저막주름이 잡혀 "canaliculi"를 만들며 크게 발달한 사립체와 접해 있었다. 핵은 크게 발달하였고 세포질 내에는 발달한 사립체가 산재해 있었으며, 지질 및 단백질 과립과 글리코겐 입자들이 많이 축적되었다. 상피의 기저막은 여러겹으로 된 기저초를 이루고 있으며, 기저막내 또는 섬유상 결합조직인 점막하조직내에는 기관지세포와 신경이 뻗어 있었다. 그리고 점막하 조직 바깥쪽에는 환상근과 종주근이 관찰되었다.

Subchronic Oral Dose Toxicity of Freeze-dried Powder of Allomyrina dichotoma Larvae

  • Noh, Jung-Ho;Yun, Eun-Young;Park, Heejin;Jung, Kyung-Jin;Hwang, Jae Sam;Jeong, Eun Ju;Moon, Kyoung-Sik
    • Toxicological Research
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    • 제31권1호
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    • pp.69-75
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    • 2015
  • The objective of this study was to investigate the toxicological information of freeze-dried powder from Allomyrina dichotoma (A. dichotoma) larvae as a food ingredient. The powder, suspended in distilled water, was administered once daily by oral gavage to four groups of Sprague-Dawley (SD) rats at dose levels of 0 (vehicle control), 250, 850, and 2500 mg/kg/day. After 13 wks of repeated administration, the standard toxicological parameters such as mortality, clinical signs, body weight, food consumption, ophthalmologic examination, clinical pathology, organ weights and macro/microscopic examination were applied for assessment of general toxicity. In addition, serum IgE and histamine levels were determined to evaluate allergenicity. The freeze-dried powder from A. dichotoma larvae did not produce treatment-related changes or findings in any toxicological parameters in either sex of any dosed groups except for slight increases in serum histamine levels at 2500 mg/kg/day. The changes were considered not to be adverse since the magnitude was minimal. In conclusion, the NOAEL (No Observed Adverse Effect Level) of the freeze-dried powder from A. dichotoma larvae was determined to be 2500 mg/kg/day or more in both sexes of SD rats and it is considered a candidate to be edible material.