• Title/Summary/Keyword: 털

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Structure of sensilla on the Antenna and Mouthparts of the Oriental Tobacco Budworm(Heliothis assulta Guenee) Larvae (담배나방의 유충의 촉각 및 구기 감각기의 구조)

  • 박순식;부경생
    • Korean journal of applied entomology
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    • v.27 no.2
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    • pp.94-102
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    • 1988
  • Studies were carried out to describe the structure and distribution of various sensilla on the antenna and mouthparts of the Oriental tobacco bud worm (H. assulta) larvae by light and scanning electron microscopy. The larval antenna has 3 segments. The second segment has 2 hairs and 3 pegs, while the third segment shows 3 regular pegs and a segmented peg (styloconicum type). Each mandible bears 2 aporous hairs on the lateral surface. The labrum bears 12 aporous hairs on its external surface. and 6 aporous hairs, 4 coeloconica-like sensilla and 2 campaniformia-like sensilla on its epipharynx. The stipes has 3 hairs, and the galea has 3 pegs. 2 papillae and 2 domes. The maxillary palpus has only a digitiform sensillum on its 1st segment but 11 sensilla of 4 different types on its 2nd segment. Maxillary sensilla represent almost 70% of total number of larval sensilla on the mouthparts. Labial pal pus has a single segment bearing a large segmented uniporous peg and a small peg. Finally their possible fun¬ctions were suggested.

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Ultrastructural Characteristics of Antennal Sensilla and Hair-pencils on the Cotton Caterpillar, Palpita indica (Lepidoptera: Pyralidae) Using Scanning Electron Microscope (주사전자현미경을 이용한 목화바둑명나방의 더듬이 감각기와 꼬리털의 외부 형태적 특징)

  • Lee, Dae-Hong;Kang, Myong-Ki;Lee, Hee-Jin;Seok, Hee-Bong;Park, Sun-Nam;Kang, Eun-Jin;Seo, Mi-Ja;Yu, Yong-Man;Youn, Young-Nam
    • Korean journal of applied entomology
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    • v.46 no.2
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    • pp.183-191
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    • 2007
  • The external ultrastructural morphology and distribution of antennal sensilla and hair-pencils of Palpita indica (Saunder) were examined by scanning electron microscopy. The antennal flagellum of male and female has six types of sensilla: long trichodea, short trichodesa, chaetica, coeloconicum around spines, camaniformia and styloconica. There are sexual differences in antennae of P. indica. The female antenna has a coeloconicum sensillum without spines nearby the long trichodea sensilla on ninth flagellomere. Otherwise, auricillica sensilla are distribute on the basal segment of male antenna. These structures are not showed in the female antenna. There are a lot of pores on the hair tufts of the male hair-pencils.

Seasonal Prevalence and Geographical Distribution of Trombiculid Mites(Acarina: Trombiculidae) in Korea (국내 털진드기(Acarina: Trombiculidae)의 계절적 소장 및 지리적 분포 조사)

  • 이인용;이한일;홍한기
    • The Korean Journal of Zoology
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    • v.36 no.3
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    • pp.408-415
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    • 1993
  • Studies on seasonal prevalence and geographical distribution of chigger mites were carried out during the period of August 1990-December 1991, and the results are summarized as follows. From total 325 field rodents collected during the study period, 15,679 chiggers were obtained and 12 species of 4 genera were identified. Leptotrombidium pallidum, a vector species of tsutsugamushi disease in Korea was the predominant species and distributed throughout the country except southern part of Korea, whereas L. scutellare, known also as a vector species was distributed mainly in southern part of Korea. The distribution of chigger mites was strongly localized by species, showing different predominant species at each locality during the same season. The predominant species were L. pallidum(92.3%) at Dorai-5ri, Wondang-ub, Neotrombicula kwangneungensis (44.7%) at Sanjung-ri, Pochun-gun, N. tamiyai (55.1%) at Changgok-ri, Paju-gun, L. orientale (55.2%) at Jangsin-ri, Iksan-gun, and L. scutellare (47.6%) at Sinyong-dong, Iri-si. Study on seasonal prevalence of L. pallidum chiggers resulted that they started appearing in September, showed the peak in November, almost disappeared during the period of December-March, reappeared in April-May showing a small peak, and again almost disappeared until September. L. scutellare showed the peak in October, sharply decreased thereafter, and disappeared during the period of January-September.

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Cultivation Characteristics and Optimal Conditions for Mycelial Growth of Volvariella bombycina (흰비단털버섯(Volvariella bombycina)의 배양적 특성 및 균사 배양 조건 설정)

  • Gyeong Jin Min;Hye Sung Park;Tai Moon Ha;Eun Ji Lee
    • Journal of Mushroom
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    • v.21 no.1
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    • pp.15-21
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    • 2023
  • Volvariella bombycinais an edible mushroom commercially cultivated in Korea and other countries. In this study, the culture characteristics and optimal growth conditions of milky mushroom strains were determined. The growth temperature and pH range of V. bombycinawas extensively investigated between 15 and 35℃ and pH 3-11. For efficient cultivation, 20 types of nutrient sources were selected, specifically, 21 carbon sources, 6 organic nitrogen sources, 7 inorganic nitrogen sources, 13 amino acids, 9 organic acids, and 13 inorganic salts. The impact of each of the selected nutrition sources and their concentration on growth was investigated. The optimum temperature and pH were determined to be 30℃ and pH 8.0, respectively. The optimum concentration of medium elements required for mycelial growth of V. bombycinawas determined to be as follows: carbon source, 0.7% Soluble starch; organic nitrogen source, 0.7% Soytone; inorganic nitrogen source, 1.0% (NH4)2C4H4O6; amino acid, 0.1% cysteine; organic acid, 0.07% lactic acid; and inorganic salt, 0.07 mM CaCl2.

계두(鷄痘)

  • 김순재
    • KOREAN POULTRY JOURNAL
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    • v.14 s.156
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    • pp.38-42
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    • 1982
  • 가을철 많이 발생하는 계두는 입, 코, 눈, 벼슬 등 털이 없는 부위에 물집이 생기며 두창을 형성한다. 효과적인 치료방법이 없어 예방에 관심을 기울여야 할 것이다.

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