• 제목/요약/키워드: cornus controversa

검색결과 131건 처리시간 0.02초

층층나무 수피의 성분 (Chemical Components from the Stem Bark of Cornus controversa $H_{EMSL}$)

  • 장현민;황방연;김민수;이동호;강신정;노재섭;이경순
    • 생약학회지
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    • 제29권3호
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    • pp.225-230
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    • 1998
  • Cornus controversa $H_{EMSL}$. (Cornaceae) is distributed widely in Korea and has been used for the treatment of diarrhea and a tonic medicine. Six compounds were isolated from the MeOH extract of the dried stem bark of Cornus controversa. Their structures were identified as gallic acid(1), scopoletin(2), arjunglucoside II(3), isoquercitrin(4), quercitrin(5) and rutin(6) by comparisons of the physicochemical and spectroscopic evidences. Among these compounds, scopoletin and arjunglucoside II were the first time isolation from this plant.

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층층나무와 말채나무 양묘(養苗)시 적정(適正) 차광율(遮光率)에 관한 연구(硏究) (Studies on Optimum Shading for Seedling Cultivation of Cornus controversa and C. walteri)

  • 김종진
    • 한국산림과학회지
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    • 제89권5호
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    • pp.591-597
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    • 2000
  • 본 실험은 층층나무(Cornus controversa Hemsl)와 말채나무(Cornus walteri Wanger)의 양묘시 적정 차광율을 구명하고자 상대광도가 100%(대조구), 50%, 30%, 10% 및 2%로 조절된 피음포지에서 실시하였다. 두 수종의 수고생장은 상대광도 50%에서 가장 높은 생장을 보였고, 근원경생장은 대조구와 50%구에서 서로 비슷하게 높은 생장을 기록하였다. 물질생산량을 보면 층층나무의 전체 생산량의 경우 50%에서 자연전광의 대조구보다 높은 생산량을 보였으나 지하부의 생산량은 다소 낮았다. 말채나무는 50%에서 전체 생산량은 대조구보다 낮았으나 지상부 생산량은 다소 높은 생산량을 보였다. 30%이하의 상대광도에서는 수고생장, 근원경생장 및 물질생산량이 급격히 감소하였다. 두 수종 모두 30%에서 가장 높은 T/R율을 기록하였으며 전체적으로 말채나무의 T/R율이 층층나무의 T/R율 보다 높았다. 잎의 엽록소 a와 b 및 전체엽록소 함량은 상대광도가 낮을수록 높아지는 경향을 나타내었다.

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Taxonomic Importance of Leaf Domatia of the Five Species of the Genus Cornus in Korea

  • Kim, Bong-Gyu;Ngondya, Issakwisa Bernard
    • 농업생명과학연구
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    • 제44권6호
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    • pp.79-82
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    • 2010
  • Three types of leaf domatia; Pocket (P), Tufts (T) and Tufts-Pocket (TP) were observed in the five species of Cornus namely; Cornus kousa, C. controversa, C. officinalis, C. walteri and C. alba. In C. walteri no tufts were observed, the domatia was just a well developed pocket one. In C. officinalis and C. kousa, tufts domatia of brownish color were observed but C. officinalis developed denser tufts than those observed in C. kousa. Unlike in C. kousa where the domatia covered about only 1/2 of the axil, in the C. officinalis tufts covered almost 3/4 of the axil. In both species the tufts domatia were located in the inner side of the leaf axil. In C. controversa and C. alba whitish colored tufts were observed covering Pockets and hence the Tuft Pocket domatia. In C. controversa the tufts were more than in C. alba but in both species the tufts were short and were located in the inner sides of the axil. Thus, based on these physiological features it was concluded that C. officinalis and C. kousa are sister species likewise C. controversa and C. alba while C. walteri belong to another lineage. The advancement of domatia (absence of tufts) in C. walteri suggests that they are the most advanced while C. officinalis and C. kousa the most primitive due to their possession of highly developed tufts and C. controversa and C. alba the intermediates.

가압.가열 처리한 층층나무 적층재를 활용한 테이블 디자인 연구 (A Study on the Table Design for Utilization of Cornus controversa Laminated Wood Manufactured by Pressing and Heating)

  • 신랑호;한태형;권진헌
    • 한국가구학회지
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    • 제23권1호
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    • pp.68-74
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    • 2012
  • In this study domestic thinning and small diameter woods of Giant dogwood (Cornus controversa Hemsl) was used. To increase the utilizability of wood, the utilizability was proposed after manufacturing laminated wood by pressing and heating. The physical and mechanical characteristics of Laminated wood were investigated and the color change was measured, using a Chromaticity coordinates, after being pressed at 10% (45 mm), 20% (40 mm), 30% (35 mm) for 5 minutes, using Stopper, and then heated at $180^{\circ}C$ for 6, 12, 24 and 48 hours. The results were as follows. Wood density, compressive strength, MOR, MOE are increased with increasing pressing rate but decreased as heating time is increased after pressing. However, Color change is clear, dimensional stability is improved after pressing and heating.

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층층나무 잎의 Phenol성 성분 (I) (Phenolic Components from the Leaves of Cornus controversa H.)

  • 이동호;이승호;정시련;노재섭;이경순
    • 생약학회지
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    • 제26권4호
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    • pp.327-336
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    • 1995
  • Twelve phenolic components were isolated from the aqueous acetone extract of the leaf of Cornus controversa H. (Cornaceae). On the basis of chemical and spectroscopic evidence, the structures of these components were established as gallic acid, $1-O-galloyl-{\beta}-{_D}-glucose$, $1,6-di-O-galloyl-{\beta}-{_D}-glucose$, $1,2,3-tri-O-galloyl-{\beta}-{_D}-glucose$, $1,2,6-tri-O-galloyl-{\beta}-{_D}-glucose$, 3,4,6-tri-O-galloyl ${_D}-glucose$, eugeniin, gemine D, quercetin, quercitrin, hyperoside and rutin.

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Erysiphe cornicola, a Powdery Mildew Occurring on Cornus controversa in Korea

  • In-Young Choi;Lamiya Abasova;Joon-Ho Choi;Ji-Hyun Park;Hyeon-Dong Shin
    • 한국균학회지
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    • 제51권1호
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    • pp.57-62
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    • 2023
  • In Korea, Cornus controversa and C. florida are known as hosts of Erysiphe pulchra from section Microspharea of the genus Erysiphe. However, recent molecular-phylogenetic analyses on the internal transcribed spacer regions and large subunit gene of the rDNA revealed that the Erysiphe powdery mildew on C. controversa in Japan is in fact E. cornicola. To assess the taxonomic status of Erysiphe-C. controversa association in Korea, isolates collected since 1987 were investigated and consequently identified as E. cornicola based on molecular-phylogenetic analyses and new morphological traits. To our knowledge, this is the first study to confirm the presence of this powdery mildew in Korea.

대둔산 도립공원 삼림식생의 분류와 유형분석 (Classification and Pattern Analysis of the Forest Vegetation in Daedunsan Provincial Park, Korea)

  • Kim, Jeong-Un;Yim, Yang-Jai;Kil, Bong-Seop
    • The Korean Journal of Ecology
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    • 제11권3호
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    • pp.109-122
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    • 1988
  • The foret vegetations of Daedunsan provincial park area in Korea were classified into eight communities of Acer mono-Zelkova serrata, Lindera erythrocarpa-Cornus controversa, Carpinus tschonoskii, Quercus variabilis, Quercus serrata, Carpinus laxiflora, Rhododendron schlippenbachii-Quercus mongolica and Rhododendron mucronu-latum-Pinus densiflora by the Z-M method. By two dimensional analysis of temperature, moisture gradients, the eight communities were grouped into four vegetation types: cove forest dominated with Zelkova serrata and Cornus controversa, hornbeam forest with Carpinus tschonoskii and Carpinus laxiflora, oak forest with Quercus variabilis, Quercus mongolica, Carpinus laxiflora, Carpinus tschonoskii, Zelkova serrta and Pinus densiflora community was made from the analysis of actual vegetation map by the phytosociological classification, environmental conditions and human interferences.

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강원도(江原道) 평창군(平昌郡) 가리왕산(加里旺山) 및 중왕산(中王山) 지역(地域) 층층나무의 입지(立地) 및 성장(成長) 특성(特性) (Site and Growth Characteristics of Cornus Controversa Growing at Mt. Gariwang and Mt. JoongWang Located in Pyungchang-gun, Kangwon-do)

  • 엄태원;이돈구
    • 한국산림과학회지
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    • 제90권3호
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    • pp.363-372
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    • 2001
  • 본 연구는 강원도 평창군 가리왕산 및 중왕산 지역 천연 활엽수림내에 분포하고 있는 층층나무의 입지 및 생장 특성을 알아보기 위하여 실시되었다. 이 지역에 출현하는 층층나무림의 지형적 특성은 해발 고도 800m~1,100m에 경사가 급하며, 북동에서 북서방향인 사면-계곡사면이었다. 층층나무가 자라고 있는 토양 특성은 A층의 토양 깊이가 평균 14.3cm로 깊고, 수분함량은 약 37.2%로 높으며, 토양 양료가 비옥한 지역이었다. 또한 층층나무와 함께 상층 임관을 구성하는 주요 수종은 신갈나무, 복장나무, 난티나무, 고로쇠나무 호랑버들 등 이었으며, 층층나무림내 하층 초본류는 십자고사리, 관중, 벌깨덩굴, 큰개별꽃, 곰취, 물봉선, 산괴불주머니, 참나물 등이 출현하였다. 해발고에 따른 층층나무의 생장은 해발고 900m 이하 지역에서 연평균직경생장량이 $4.06({\pm}0.90)mm$, 900m~1,000m 지역에서는 $2.51({\pm}0.65)mm$로 나타났다. 또한 해발고 1,000~1,100m 지역에서는 $3.28({\pm}0.12)mm$, 1,100m 이상 지역에서는 $2.81({\pm}0.35)mm$로 생장이 둔화되었다. 주로 북서사면에서 생장이 좋았으나 지형에 따른 생장량의 차이는 없었다.

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오대산국립공원 소금강 계곡부 식물군집구조 (Plant Community Structure of the Soguemgang Valley in Odaesan National Park)

  • 강성칠;한봉호;박석철;최진우
    • 한국환경복원기술학회지
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    • 제19권4호
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    • pp.29-44
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    • 2016
  • This study was carried out to the structure of plant community, and ecological succession sere of forest ecosystem in Soguemgang Valley, Odaesan National Park. Fifteenth plots(size is $20m{\times}20m$) were set up and the results analyzed by DCA which is one of the ordination technique showed that the plant communities were divided into seven groups which area community I(Quercus variabilis-Pinus densiflora community), II(Pinus densiflora community), III(Pinus densiflora-Quercus variabilis community), IV(Pinus densiflora-Quercus serrata community), V(Quercus serrata community), VI(Pinus densiflora-Deciduous broad-leaved plant community), VII(Cornus controversa-Carpinus laxiflora community). Shannon diversity index per $400m^2$ was to 0.7777 to 1.1440 and the age of Pinus densiflora 86 years old, Quercus variabilis was ranged from 66 to 87 years old, Quercus serrata was ranged from 51 to 62 years old, Carpinus laxiflora was 94 years old. In 2013, the succession trend was predicted Pinus densiflora${\rightarrow}$Quercus variabilis, Quercus serrata ${\rightarrow}$Cornus controversa, Carpinus laxiflora. The ecological sucession progress has declined power of the Pinus densiflora and the increased power of the deciduous broad-leaved and Quercus spp. in Soguemgang Valley, Odaesan National Park. Quercus serrata and Quercus variabilis communities that judged Pinus densiflora were progressing by direction of landform. The southern slopes vegetation were progressing for Quercus variabilis, the northern slopes vegetation were progressing for Quercus serrata. In flat Valley, mainly native species of Cornus controversa, Carpinus laxiflora are predicted ecological succession for deciduous broad-leaved tree community.

광도 저하에 대한 5개 활엽수의 생리적 응답 반응 (Physiological Responses of the Five Deciduous Hardwood Seedlings Growing Under Different Shade Treatments)

  • 조민석;권기원;김길남;김판기
    • 한국산림과학회지
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    • 제97권6호
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    • pp.680-689
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    • 2008
  • 본 연구에서는 층층나무, 물푸레나무, 박달나무, 개벚나무, 고로쇠나무를 대상으로 차광처리를 통해 4가지 수준(상대 차광률; 전광처리구, 전광대비 65~72%, 29~40%, 7~12%)으로 광도 조건을 달리하여 광합성 특성을 조사하였다. 그 결과, 층층나무, 물푸레나무 및 박달나무는 차광처리에 의하여 광합성 능력과 엽록소 형광이 저하하여, 내음성 수준이 낮음을 시사하였다. 개벚나무는 조사 시기별 차이는 있었으나, 강피음 처리구를 제외한 나머지 세 처리구에서 좋은 광합성 능력을 나타내, 보통 수준의 내음성을 보였다. 한편 고로쇠나무는 전광대비 29~40% 처리구에서 가장 높은 광합성 능력과 엽록소 형광을 나타내, 내음성 수준이 공시수종 중에 가장 높음을 시사하였다.