• Title/Summary/Keyword: 사리

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영양적 방법에 의한 곰팡이 독소의 피해 저감

  • Lee, Wang-Sik
    • Feed Journal
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    • v.2 no.10
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    • pp.116-119
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    • 2004
  • 사료중에 존재하는 위해요소로서, 곰팡이 독소는 아스퍼질러스, 페니실리움, 푸사리움속에 속하는 곰팡이의 2차 대사산물이며, 사람과 가축에 잠재적 독성이 있는 300여 가지의 곰팡이 대사산물이 발견되어지고 있다.(중략)

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Taxonomic study of the genus Diplazium (Woodsiaceae) in Korea (한국산 참빗고사리속(우드풀과)의 분류)

  • Lee, Chang Shook
    • Korean Journal of Plant Taxonomy
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    • v.35 no.3
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    • pp.175-186
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    • 2005
  • Cladistic analysis was performed to reveal the interspecific relationship of nine taxa of Korean Diplazium (Woodsiaceae). A total of 29 taxa with 20 taxa of eastern asiatic species as ingroup and three taxa of Athyrium as outgroup, were analyzed with 17 morphological characters. Diplazium nipponicum, recently found from Jeju Island, was most closely related to D. chinense by having the acuminate apex of pinnule segment and fascicled fronds. Diplazium nipponicum was distinguished from D. chinense by having scales and pinnule segments of serrated margin, and non-overlapped pinnules. Diplazium nipponicum and D. chinense were closely related to D. mesosorum and D. hajizoense in sequence, by having long acute apex in pinnae. These species formed same clade with D. subtripinnatum, which is endemic to Japan and D. kawakamii, which is distributed in Japan and Taiwan.

Screening for Antifungal Activity of the Pine Extracts Against Fusarium circinatum (Fusarium circinatum에 대한 소나무류 추출물의 항균력 검정)

  • Kim, Myoung-Ju;Shim, Gyu-Yul
    • Asian Journal of Turfgrass Science
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    • v.24 no.2
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    • pp.165-169
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    • 2010
  • Fusarium circinatum is the causal agent of the pine disease commonly referred to as pitch canker. In this study, F. circinatum was isolated from the diseased Pinus rigida in the golf courses, Korea. The morphological characteristics and the molecular features of the isolates were investigated to identify the pathogen. Histone H3 gene and IGS rDNA region was analyzed and consequently the isolates identified as F. circinatum. All of them have the same sequences and the mating type was determined as MAT1-1. The inhibitory effect of the methanol extracts from the disease resistant pine species, Pinus koraiensis and Pinus densiflora and a susceptible species, P. rigida were evaluated against the isolate, F. circinatum. As a result, the extracts of P. koraiensis and P. densiflora showed higher antifungal activity than that of the susceptible, P. rigida.

Modified Organs of Air Breathing Fishes in Korea (어류의 공기호흡 기관)

  • Kim, Chi-Hong;Park, Jong-Young
    • Korean Journal of Ichthyology
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    • v.23 no.3
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    • pp.250-254
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    • 2011
  • Modified organs for air respiration in Korean fish was reviewed in the following 6 Korean fishes: three mudskippers (Boleophthalmus pectinirostris, Periophthalmus modestus and P. magnuspinnatus), two mud loaches (Misgurnus mizolepis and M. anguillicaudatus), and a torrent catfish (Liobagrus mediadiposalis). Three mudskippers and a torrent catfish have a modified epidermis to in order to make up for the deficient oxygen supply. Their epidermis has abundant intraepithelial blood capillaries except dermal capillaries situated just beneath the stratum germinativum of the epidermis in B. pectinirostris. The epidermis was thick due to component of the following cells: two kinds of glands as a small mucous cells and a large club cells in L. mediadiposalis, voluminous cells (swollen cells) swollen by epidermal cells and a small mucous cells in B. pectinirostris, and only voluminous cells having no any glandular cells in P. modestus and P. magnuspinnatus. In Particular, the epidermis of the mudskippers appears to be a web-like structure due to the swollen epithelial cells. The dermal bulges are found in B. pectinirostris and they are situated at the skin covering the body, not appendage of all the fins and the sucking disc. Another modified organ in M. mizolepis and M. anguillicaudatus occurs in intestine and its mucosal epithelium has abundant blood capillaries.

Two unrecorded fern species from Korean flora: Cyclosorus penangianus (Hook.) Copel. (Thelypteridaceae) and Pteris fauriei Hieron. (Pteridaceae) (한국산 미기록 양치식물 : 큰별고사리 [Cyclosorus penangianus (Hook.) Copel.] (처녀고사리과), 오름깃고사리 [Pteris fauriei Hieron.] (봉의꼬리과))

  • Moon, Myung-Ok;Yun, Na Rae;La, Eun Hwa;Lim, Jina;Kim, Dae-Shin;Kim, Chan-Soo
    • Korean Journal of Plant Taxonomy
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    • v.44 no.4
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    • pp.257-260
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    • 2014
  • While preparing a floristic study of Korean Pteridophytes, we discovered the following two unrecorded species from Jeju Island: Cyclosorus penangianus (Hook.) Copel. and Pteris fauriei Hieron. C. penangianus can be distinguished from other Korean congeners of the genus Cyclosorus by having exindusiate sori, toward with sinus of ultimate segments of veinlets more than 4. P. fauriei can be distinguished from other Korean congeners of the genus Pteris by having ultimate segments with entire margins, veins reaching to leaf margin and membraneous petiolar scales.

A Study on Architectural Decorative Design of the Silla Buddhist Reliquaries in the $7{\sim}8th$ Centuries (7.8세기 신라 사리장엄에 표현된 건축의장 연구)

  • Kim, Sang-Tae
    • Korean Institute of Interior Design Journal
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    • v.16 no.4
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    • pp.3-11
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    • 2007
  • We study, in this paper, on the decorative design of the Treasure-architectural form for the Silla Buddhist reliquary and this research went through the observation on the Buddhist Reliquaries of the Song-Lim-Sa, the Eastern-Western three floor pagodas in the Kam-Eun-Sa, the three floor pagodas in the Bul-Guk-Sa and the reportedly discovered Nam-Won. The Buddhist reliquaries of these 5 Reliquaries, when compared with those of China and Japan in the same period, they worshiped the Buddhist reliquary as a Buddhist God itself and put them as a part of the architectural decoration, being installed in the construction forms. In the form and the composition of the architecture, we can see those having been designed with very detailed and brightly decorated form. The Buddhist reliquaries in the Song-Lim-Sa and Kam-Eun-Sa, the most important ones in this research, were in a royal palace shape having completely the altar part, interior space part, and the ceiling part, which inform us the whole structure of the architecture in details. In particular, for the case of Kam-Eun-Sa, the columns in the shape of bamboo trees, the expression of the gates, the terrace of double parts formed of word-shape Man, and the statue of a general with superhuman ability in the shrine explain us the description of the Gyun-Bo-Tap-Pum of Lotus Sutra. After all these researches, we conclude that the Buddhist reliquaries in form of the Treasure-architecture represented the architectural style of the same period as a form of industrial arts and we can see that they tried to use all of their highly skilled and talented methods to describe the Buddhist Pure Land.

Studies on the Shade Tolerance of the Woody and Herbaceous Plants for Urban Forest Aromatic Bath (도시형(都市型) 삼림욕장(森林浴場) 목초본식물(木草本植物)의 내음성(耐陰性) 연구(硏究))

  • Hong, Sung Gak;Kim, Jong Jin;Im, Hyoung Tak
    • Journal of Korean Society of Forest Science
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    • v.89 no.5
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    • pp.585-590
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    • 2000
  • The studies were carried out to know shade tolerance of the plants for the urban forest aromatic bath. The one to two year old potted seedlings were grown under the one of the five light conditions such as 100%, 50%, 30%, 10% and 2% of the full sun light intensities. Pinus densiflora S. et Z., P. sylvestriformis (Takenouchi) Chien., Thymus quinquecastatus Celak, Lonicera japonica Thunb, and Zingiber officinale Roscoe showed decreasing tendencies in height and root collar diameter growth, and dry mass production as the light intensity decreases. Exceptionally Thuja koraiensis Nakai showed the best growth in the 50% of full sun light intensity. Athyrium yokoscense (Fr. et Sab.) H. Christ showed better growth in the relative light intensity of 10 to 15% than in the in the relative light intensity of 25 to 30% in the bath green house.

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Spore morphology of Korean Polypodiaceae (한국산 고란초과 식물의 포자 형태)

  • Lim, Jin A;Kim, Chul Hwan;Kwak, Min Ju;Sun, Byung-Yun
    • Korean Journal of Plant Taxonomy
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    • v.36 no.1
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    • pp.1-19
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    • 2006
  • Description of spore morphology of Korean Polypodiaceae has on LM and SEM and key to the genera are provided. Korean Polypodiaceae monad, monolete with bilateral symmetry, bipolar and oblete spore except for Loxogramme grammitoides having trilete spore with radial symmetry. In spore wall structure, exopore showed variable patterns enough to distinguish genera. Perispore was found in all the species examined. The patternof perispore and exospore was most similar in all the species examined except Crypsinus, Pyrrosia hastata ans P. linearifolia. The perispores of Crypsinus, Pyrrosia hastata and P. linearifolia were echinate and gemmate, rugulate, and verrucate respectively. In term of exospore wall sculpturing, Polypodium and Loxogramme showed fossulate, Lepisorus, rugulate with irregular verrucate, Crypsinus ans Coloysis showed psilate or rarely verrucate in the latter, Neocheiropteris ensata showed dense small verrucate, Lemmaphyllum microphyllum showed complex reticulate and Pyrrosia showed verrucate or psilate.

Spawning Site Characters in the Natural Environment of Bull-head Torrent Catfish, Ligbagrus obesus(Siluriformes: Amblycipitidae) in the Gosan Stream, Mangyeong River Water System, Korea (만경강 수계 고산천에 서식하는 퉁사리 Liobagrus obesus의 자연산란장 특성)

  • Kim, Hyeong-Su;Yang, Hyun;Hong, Yang-Ki
    • Korean Journal of Ichthyology
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    • v.24 no.3
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    • pp.183-190
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    • 2012
  • The spawning site characters in the natural environment of bull-head torrent catfish, Liobagrus obesus, were investigated at the part of the Gosan stream in Korea from April to October 2010 and June 2011. The sex ratio of female to male was 1 : 1.02. Spawning season was from June to July with water temperature in approximately $23^{\circ}C$. The spawning sites were covered by the boulder used upper plate and were composed of gravel and sand. One male lies with the egg mass and guards the developing embryos in the hollow below the boulder. The environmental conditions of the spawning sites were $61.4{\pm}11.97$ (50~85) cm in depth, 0.58${\pm}0.067$ (0.48~0.72) m/sec in surface water velocity, $0.46{\pm}0.098$ (0.27~0.61) m/sec in middle water velocity, $0.27{\pm}0.083$ (0.14~0.41) m/sec in bottom water velocity. The boulder width as spawning sites was $26.2{\pm}5.32$ (20~38) cm in long axis, $20.5{\pm}2.97$ (16~25) cm in short axis and $11.1{\pm}4.02$ (5~19) cm in height. The hollow underneath the boulder was $9.8{\pm}2.32$ (6~14) cm in diameter and $2.8{\pm}1.10$ (1.5~5) cm in depth. The average number of eggs in ovary was $124{\pm}27.7$ (92~180). The matured egg size was $3.40{\pm}0.078$ (3.21~3.56) mm. The average number of spawning eggs in the spawning site was $99{\pm}12.9$ (81~122).