• 제목/요약/키워드: integument

검색결과 61건 처리시간 0.025초

온탕소독과 prochloraz 침지소독이 벼 종자에 감염된 Fusarium fujikuroi의 포자와 균사의 형태에 미치는 영향에 대한 전자현미경적 연구 (Electron Microscopic Study for the Influence of Soaking in Hot Water and Prochloraz Solution on Spore and Mycelium of Fusarium fujikuroi Infected in Rice Seed)

  • 박우식;예완해;이세원;한성숙;이준성;임춘근;이용환
    • 식물병연구
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    • 제14권3호
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    • pp.176-181
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    • 2008
  • 본 연구는 키다리병에 심하게 감염된 종자를 온탕침법과 prochloraz 유제로 종자소독 시 그 효과가 떨어지는 원인을 규명하기 위해 시행하였다. 키다리병이 발병한 포장에서 수확한 종자의 경우 병원균이 벼 종자의 배와 배유 안쪽까지 감염되어 있었다. $60^{\circ}C$에서 10분 동안 온탕 소독한 종자의 경우 종피 표면의 균사는 파괴되어 비정상적인 반면 배 주피 안쪽에 존재하는 균사는 정상적인 형태로 존재하였다. 포자는 종피 표면에서 비정상적인 포자와 정상적인 포자를 모두 확인하였다. prochloraz 유제로 $30^{\circ}C$ 24시간 침지소독 한 경우 종피의 균사는 완전히 파괴되었으나 포자는 정상과 비정상 포자 모두 확인할 수 있었다. 이러한 결과를 통해 온탕소독의 경우 종피 같은 물리적 한계로 인해 고열이 병원균에 전달되지 못하고, prochloraz의 경우 병원균 포자를 완전히 사멸시키기 못하기 때문에 종자소독 효과가 떨어짐을 알 수 있었다.

작잠(Antheraea pernyi) arylphorin의 항체를 이용한 수종의 나비목 야생 견사곤충들 간의 면역학적 비교 (Comparison of Arylphorin of Antheraea pernyi with Those of Several Lepidopteran Wild Silkmoths by Western Blot Analysis.)

  • 박남숙;김미애;박현철;김근기;진병래;이상몽
    • 생명과학회지
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    • 제18권3호
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    • pp.409-413
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    • 2008
  • 작잠 arylphorin 항 혈청을 사용하여 천잠, 가중나무 산누에 나방 및 옥색긴꼬리 산누에나방의 5령 유충의 혈림프, 피부, 지방체, 중장 및 실샘에 대한 종(species) 공통항원의 존재 여부를 비교${\cdot}$검토하였다. 4개종은 혈림프, 피부, 지방체, 중장 실샘 등 종별 조직에 따라 다소간 검출유무의 차이는 있으나 작잠 arylphorin 항 혈청에 대한 공통항원의 존재는 4종의 야생곤충 모두에서 확인되었으며, 특히 혈림프에서 가장 강력한 항원-항체 반응이 관찰되었다. 이상의 결과에서 A. pernyi arylphorin은 천잠 등 4개의 공시곤충들의 공통 조상유전자로부터 유래한 단백질일 가능성이 높은 것으로 사료된다.

무당벌레(Harmonia axyridis) 초시색상 패턴의 유전 및 이의 관련유전자 탐색 (Molecular cloning of Prophenoloxidase (PPO) gene related to melanin formation of elytra of Harmonia axyridis)

  • 김세희;서미자;박민우;유용만;윤영남
    • 농업과학연구
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    • 제39권1호
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    • pp.23-28
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    • 2012
  • In order to cloning of PPO gene as a melanin formation related genes involved in hardening and pigmentation of insect integument or wing, we cloned cDNA and analyzed the sequence of PPO gene of H. axyridis. PPO2 primer were designed based on the sequences of PPO genes of Tribolium castaneum and Drosophila melanogaster, and then plasmid DNA were cloned from PCR products obtained from different two color patterns. When the plasmid DNA band pattern were digested by restriction enzymes, BamH1, Xba1, and EcoR1, we found same size band pattern. However, this sequence was not homologous to sequence of T. castaneum PPO gene. Using the primer designed based on the sequence of D. melanogaster, 209 bp PCR product was observed.

Santalum album Linn wood and its oil: An aromatic Unani traditional medicine with versatile pharmacological activities

  • Sultana, Arshiya;Rahman, Khaleequr
    • 셀메드
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    • 제8권3호
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    • pp.14.1-14.6
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    • 2018
  • Santalum album Linn. [Family: Santalaceae] is commonly known as white sandalwood, sandal safaid and safed chandan. It is one of the most valuable trees and second costliest wood in the world. Sandalwood and its oil is extensively used in the Unani and other traditional systems of medicine as it has blood purifier, anti-inflammatory, analgesic, exhilarant, cardiotonic, antiseptic, nervine tonic and expectorant properties. It is used in skin, cardiac, liver, gastrointestinal, respiratory, integument and urogenital disorders. These uses are supported and proven by many in vitro or in vivo studies. The proven pharmacological activities of S. album are antimicrobial, anti-oxidant, anti-inflammatory, antimutagenic and anti-fatigue. The research has proven that sandal oil or its constituents have anti-microbial activity. Sandalwood oil showed skin cancer preventive effect in mice and its constituent alpha santalol showed the anticancer property. The methanolic extract of wood was confirmed for antioxidant, free radical scavenging, analgesic and anti-inflammatory activities. ${\alpha}$ and ${\beta}$ santalols present in sandal oil showed sedative effects. Sandalwood tea had a significant effect on heart muscles of frog and showed increased myocardial contractility. Its oil showed significant changes in hepatic xenobiotic metabolizing enzymes. Sandalwood oil and its major constituents showed less acute oral and dermal toxicity in laboratory animals. Hence, the aforementioned studies justify the uses of sandalwood and its oil mentioned in the classical Unani literature. However, further clinical trials are suggested to confirm its efficacy and safety in humans.

Study on the Skin of Hand Lesser Yang from the Viewpoint of Human Anatomy

  • Park, Kyoung-Sik
    • 대한한의학회지
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    • 제36권4호
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    • pp.69-73
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    • 2015
  • Objectives: This study was carried out to analyse the skin of the Hand lesser yang in human. Methods: The Hand lesser yang meridian was labeled with latex in the body surface of the cadaver, subsequently dissecting a body among superficial fascia and muscular layer in order to observe internal structures. Results: This study has come to the conclusion that a depth of the skin has encompassed a common integument and a immediately below superficial fascia, and this study established the skin boundary with adjacent structures such as relative muscle, tendon as compass. The skin area of the Hand lesser yang in human is as follows: The skin close to the ulnar root angle of 4th finger nail, above between 4th and 5th metacarpal bone, between extensor digit. minimi tendon(t.) and extensor digit. t., extensor digit. m(muscle). at 2, 4, 7 cun above dorsal carpal striation, triceps brachii m. t., deltoid m., trapezius m., just around the ear, upper orbicularis oculi m. Conclusions: The skin area of the Hand lesser yang from anatomical viewpoint seems to be the skin area outside the superficial fascia or the muscle involved in the pathway of the Hand lesser yang meridian, the collateral meridian, the meridian muscle, with the condition that we consider adjacent skins.

Scanning Electron Microscopic Observation of Human Skin Replica

  • Rhyu, Yeon-Seung;Chung, Ye-Ji;Uhm, Chang-Sub
    • Applied Microscopy
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    • 제40권4호
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    • pp.267-270
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    • 2010
  • The skin is the largest organ of the integument system whose surface is closely related with many physiological and pathological conditions. Various methods are used to understand the structural and functional status of human skin. We would like to present usefulness of scanning electron microscopic (SEM) observation of skin replica and its significance of training module for a novice. The silicon replicas from several regions of the body (hand, finger, forearm, lip, and face) were casted by applying Exafine$^{(R)}$ mixture. The positive replicas were prepared by applying EPON 812 mixture on negative silicon replicas. Some of the negative silicon replicas were cut with a razor blade and surface profiles were observed. The negative and positive replicas were coated with platinum and were observed under the scanning electron microscope. We could investigate the detailed structures of the human skin surface without any physical damage to the subject. The positive replicas depicted real surface structure of the human skin vividly. The cross sectional view of the negative silicon replicas provided surface profile clearly. The scanning electron microscopic observation of the human skin replicas would be useful to study skin surface structures and to evaluate medical and esthetical applications.

가지과 Withania somnifera 의 종자 형질 (Seed characteristics of Withania somnifera (Solanaceae))

  • ;;허권
    • 식물분류학회지
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    • 제41권2호
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    • pp.103-107
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    • 2011
  • 가지과 Withania somnifera (L.) Dunal의 종자 해부학적 특징을 알기 위하여 광학현미경과 주사전자 현미경을 사용하여 관찰하였다. 종자의 색깔은 노랑색이고, 종자의 형태는 신장형이며, 크기가 2−3 mm 정도이다. 종자는 종의를 가지고 있지 않았으며, 배유가 잘 발달한 유배유종자였다. 종피형태는 외종피외층형으로 나타났다. 종피는 외종피만으로 구성되는 단주피성 이었으며, 한 층의 외종피외층, 여러 층의 외종피중층, 그리고 한 층의 외종피내층으로 구성되었다. 그러나 종자가 완전히 성숙했을 때는 외종피중층이 모두 압착되었으며, 외종피외층은 특징적으로 파상형의 후벽세포로 발달하였다. 종피의 표면은 망상구조를 가지며, 수층 벽구조는 파상형으로 발달하였고, 표면에 여러 개의 구멍이 발달하는 특징이 관찰되었다.

철강재료 가공용 수산소 혼합가스 발생기 (Hydrox Generator for Steel Manufacturing)

  • 김홍건;곽이구;이우금;차화동;신중달
    • 한국생산제조학회지
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    • 제20권3호
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    • pp.257-262
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    • 2011
  • A low capacity generator converted to high capacity of 40m3 is designed and developed in order to use the hydroxy gas in the steel manufacturing process. For efficient design, it is increased from 8 electrode tubes to 10 electrode tubes as well as expanding the diameter of cell integument up to two times bigger, which can increase the amount of hydrogen occurrence per a cell significantly. In addition, circulating pump and pipe, heat exchanger of affiliated SUS material have been used in the circulation of electrolysis catalyst, and circulating cooling section and piping design are also developed. The flame trap is designed into all-in-one suitable check valve in the flow rate of 28-35m3/h and its application is possibly applied in work operation. It is found that the efficiency of generator developed is enhanced substantially up to 84%. It is expected that the application in this field can be expanded significantly by this study.

Study on Hand Greater Yang Skin from the Viewpoint of Human Anatomy

  • Park, Kyoung-Sik
    • 대한한의학회지
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    • 제39권4호
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    • pp.121-125
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    • 2018
  • Objectives: This study was carried out to analyse Hand Greater Yang Skin in human. Methods: Hand Greater Yang meridian was labeled with latex in the body surface of the cadaver. And subsequently body among superficial fascia and muscular layer were dissected in order to observe internal structures. Results : A depth of Skin encompasses a common integument and a immediately below superficial fascia, this study established Skin boundary with adjacent structures such as relative muscle, tendon as compass. The Skin area of the Hand Greater Yang in human are as follows: The skin close to 0.1chon ulnad of $5^{th}$ nail angle, ulnad base of $5^{th}$ phalanx, ulnad head of $5^{th}$ metacapus(relevant muscle: abductor digiti minimi muscle), ulnad of hamate, tip of ulnar styloid process(extensor carpi ulnaris tendon), radiad of ulnar styloid process, 2cm below midpoint between Sohae and Yanggok(extensor carpi ulnaris), between medial epicondyle of humerus and olecranon of ulnar(ulnar nerve), The skin close to deltoid muscle, trapezius muscle, platysma muscle, inner muscles such as teres major muscle, infraspinatus muscle, supraspinatus muscle, levator scapulae muscle, splenius cervicis muscle, splenius capitis muscle, sternocleidomastoid muscle, digastric muscle, stylohyoid muscle, zygomaticus major muscle, auricularis anterior muscle. Conclusions: The Skin area of the Hand Greater Yang from the anatomical viewpoint seems to be the skin area outside the superficial fascia or muscles involved in the pathway of Hand Greater Yang meridian, collateral meridian, meridian muscle, with the condition that we consider adjacent skins.

Anatomical Study on Hand Gworeum Skin in Human

  • Park, Kyoung-Sik
    • 대한한의학회지
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    • 제41권4호
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    • pp.72-77
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    • 2020
  • Objectives: This study was carried out to concrete the concept of Hand Gworeum Skin referred in Suwen of Huangdi Neijing. Methods: The Hand Gworeum Meridian was labeled with latex in the body surface of the cadaver, subsequently dissecting a superficial fascia and muscular layer in order to observe internal structures. Results: Skin histologically encompasses a common integument and a immediately below superficial fascia, this study established the skin boundary with adjacent structures such as relative muscle, tendon as its compass. The realm of the Hand Gworeum Skin is as follows: The skin close to the nipple on the 4th intercostal space, the interceps of biceps brachii muscle, the cubital surface at ulnad of bicipital aponeurosis, the anterior surface of the forearm, between flexor carpi radialis and palmaris longus(from wrist crease to 5chon above), the palm between the 3rd and 4th metacarpals on the cross part with the palm crease, the radiod from the middle finger nail(or the end of middle finger). The realm of the Hand Gworeum Skin is situated on between Hand Taeeum Skin and Hand Soeum Skin in front of arm. Conclusion: The realm of Hand Gworeum Skin from the anatomical viewpoint seems to be the skin area outside the superficial fascia or the muscle involved in the pathway of the Hand Gworeum Meridian vessel, Collateral Meridian vessel, and Meridian muscle, being considered adjacent vessels or nerves at the same time.