• 생명과학회지
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• 제18권2호
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• pp.175-179
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• 2008

Cornus controversa is a long-lived woody species mostly distributed in East Asia. Random amplified polymorphic DNA (RAPD) markers were used to investigate the genetic diversity and population structure of Korean populations of this species. A high level of genetic variation was found in seven populations of C. controversa. The mean genetic diversity (H) was 0.222 across populations, varying from 0.200 to 0.238. Eighty of the 93 loci (86.0%) showed detectable polymorphism in at least one population. Total genetic diversity values ($H_T$) varied between 0.192 and 0.231, giving an average overall polymorphic loci of 0.212. The interlocus variation of genetic diversity within populations ($H_S$) was high (0.167). Mean of genetic diversity in C. controversa was higher than average values for species with similar life history traits. The sexual reproduction, perennial habitat, and longevity are proposed as possible factors contributing to high genetic diversity. On a per locus basis, the proportion of total genetic variation due to differences among populations ($G_{ST}$) ranged from 0.169 to 0.278 with a mean of 0.216, indicating that about 21.6% of the total genetic variation was among populations. An indirect estimate of the number of migrants per generation (Nm=1.893) indicated that gene flow was extensive among Korean populations of C. controversa.

• 임산에너지
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• 제21권3호
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• pp.28-33
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• 2002

본 연구는 우량 층층나무 용기묘 생산기술을 개발하기 위하여 5개월간 비닐온실에서 수행되었다. 공시용기로 사용된 플라스틱 망 용기와 일반 플라스틱 용기에서 생육한 묘목의 수고생장 차이는 없었으나, 근원경생장은 플라스틱 망 용기에서 높게 나타났다. 플라스틱 망 용기에서 생육한 묘목은 장근 및 세근발달이 촉진되었으며, 지상부와 지하부 건물생산량이 뚜렷하게 증가하였다. 특히 플라스틱 망 용기에서 생육한 묘목에서는 망 용기에 의해 유도된 공기단근에 의하여 나선형 뿌리가 나타나지 않았다. 본 실험에서 사용된 플라스틱 망 용기는 묘목의 뿌리발달을 좋게하며 지상부 생장이 향상된 층층나무 용기묘 생산에 유용한 것으로 판단된다.

• The Korean Journal of Ecology
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• 제25권1호
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• pp.33-39
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• 2002

Objectives of this study are to make clear the vegetation structure of Hovenia dulcis community in the Korean Peninsula over ten mountains including 17 plots. The results were summarized as follows. Habitat of the community indicated that elevation ranged from 115 meter to 720 meter at the sea level, slope aspect in nearly all directions, bare rock from 0 to 90 percent, slope degree from 10$^{\circ}$ to 40$^{\circ}$, topography from valley to middle slope, the height of tree layer from 8m to 22m, the diameter at breast height from 12cm to 59cm and coverage from 65% to 95$\%$$\%$

• Journal of the Korean Wood Science and Technology
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• 제26권3호
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• pp.81-92
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• 1998

Lately public interest in tree saps of maple and birch trees has been increased for sap drink as a natural medical beverage. To ensure tree sap drink for commercial production, species which are available in resources, their ecological regeneration characteristics in the natural forest stand, and tree sap resources should be investigated. Species for the collecting tree saps and their distribution were surveyed in the areas of Mt.Sobaek, Tanyang-gun, Chungcheongbuk-do. Mt.Sobaek area was selected to the proper place to survey as the feasible area for tapping tree saps for the natural beverage. Feasible tree species of this area are Betula costata, Betula schmidtii, Comus controversa, Acer mono, and Acer pseudosieboldianum based on the estimated tree sap amounts. Average and maximum species diversities of surveyed area were 4.2 and 5.39, respectively. Its evenness 0.78 referred that there are actively progressing ecological regeneration among diverse tree species. Tree saps are mainly harvested at the areas of upper and lower Wonmanteo. In terms of species, the most high sap amounts were from birch sap, next Comus controversa, the 3rd Acer mono. Many measures were suggested ecologically and technically, for commercial or practical production of tree sap drinks, though Mt.Sobaek area was evaluated as improper place because of geographical and transportational limitation.

• 한국환경과학회지
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• 제18권5호
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• pp.579-588
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• 2009

The purpose of this study was to explain relationship between community structure and their environment variables in Mt. Hwaak. Samples were collected by 101 plots using ZM phytosociological method and followed by cluster, importance value and canonical correspondence analysis. The forest vegetation classified into 8 community types such as Pinus densiflora community, Berberis amurensis community, Betula ermani community, Betula schmidtii community, Larix leptolepis community, Pinus koraiensis community, Cornus controversa community and Salix koreensis community. Altitude was considered as the highest factor correlated to the community types. Berberis amurensis community and Betula ermani community were located in upper slope area of high elevation, Comus controversa community and Salix koreensis community in valley area, and Pinus densiflora community in ridge area, respectively.

• 생약학회지
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• 제33권2호통권129호
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• pp.137-143
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• 2002

The inhibitory effects of methanol extracts of 165 medicinal herbs on matrix metalloproteinase-2 (MMP-2) activity were investigated. Amongst the herbal extracts, Youngia denticulate, Platycarya strobilacea, Sedum kamtschaticum, Euscaphis japonica, and Comus controversa showed a significant inhibitory effect with above 80% at $1\;{\mu}g/ml$. Above mentioned five kind extracts, which exclude polyphenols and/or tannin by techniques for their removal, showed a mild inhibitory effect on MMP-2 activity except for Y. denticulate at the same concentration.

• 한국환경생태학회지
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• 제2권1호
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• pp.1-8
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• 1988

치악산국립공원내 주 이용대상지인 구룡사-비로봉 일대 삼림군집의 구조를 분석하기 위하여 인간 간섭의 정도 및 환경조건을 고려하여 4개 조사지를 선정하고 총 45개 조사구를 설치하였다. 인간의 간섭이 심한 저지대 계곡부의 경우 비교적 천이단계가 낮은 소나무가 우점종이었으며(조사지 I ), 비교적 인간의 간섭이 심한 고지대 계곡부(조사지 II)와 근래에 입산금지가 된 계곡부(조사지 III )에서는 층층나무. 주등산로가 있는 고지대 능선부(조사지 IV)에서는 신갈나무가 우점종이었다. 종다양성은 조사지 III, II, I, IV의 순으로 높았는데, 이것은 능선부인 조사지 IV를 제외할 때, 인간 간섭의 정도와 역의 관계였다. 종상관성 분석결과 소나무는 타수종과 유의적인 부의 상관을 가지는 경우는 비교적 많았으나 정의 상관을 인정할 수 있는 경우는 나타나지 않음으로써 대체로 순림의 형태를 이루고 있었다. 치악산 구룡사 계곡의 DCA에 의한 ordination분석결과 표고 및 환경인자에 의해 3개의 군집으로 나눌 수 있었으며, stand ordination에 따라 소나무군집, 소나무-신갈나무, 소나무-갈참나무, 갈참나무-서어나무, 층층나무-까치박달나무, 층층나무 군집으로 구분되었다. 천이과정은 능선 및 중복부에서는 소나무$\longrightarrow$신갈나무 및 참나무류, 팥배나무$\longrightarrow$서어나무로, 계곡저지대에서는 소나무$\longrightarrow$참나무류$\longrightarrow$층층나무, 까치박달나무로 진행되는 과정이었다.

• Journal of the Korean Wood Science and Technology
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• 제15권2호
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• pp.1-15
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• 1987

This experiment was undertaken for the purpose of investigation of relative durability about thirty sorts of the korean native wood and nine sorts of the wood destroying fungi Polystictus versicolor, Irpex consors. Poria vaporaria, Merulius lacrymans, Schizophyllum commune, Trametes pini, Lenzites betulina, Paxillus panuoides by means of a laboratory methods. The results obtained are; (from the table 2 to 10) 1. By measuring the percentage of loss in weight with regard to Polystictus versicolor, the sap wood contained in Junipeus chinesis was calculated at 18.2%, therefore it is much higher durability than any others and the sap wood contained in Pinus densiflora was measured at 44.10%, therefore it is much lower durability than any others. 2. By measuring the percentage of loss in weight with regard to Irpex consors, the heart wood contained in Butula schmidtii was calculated at 1.23%, therefore durability is very high and the heart wood contained in Quercus dentata was calculated at 26.79%, therefore durability is very low. 3. By measuring the percentage of lass in weight with regard to Lenzites betulina, the heart wood contained in Betula schmidtii was calculated at 5.33%, therefore it is much higher durability than any others and the sap wood with regard to Abies holophylla was measured at 45.48%, therefore durability is very low. 4. By measuring the percentage of loss in weight with regard to Poria vaporaria, the sap wood contained in Fraxinus rhynchophylla was calculated at 5.57%, therefore durability is very high and the sap wood contained in Paulownia coreana was calculated at 35.6%, therefore it is much lower durability than any others. 5. By measuring the percentage of loss in weight with regard to Merulius lacrymans, the heart wood contained in Castanea crenata was measured at 0.09% and in the next place, the heart wood contained in Abies holophylla calculated at 0.15% did not decay almost and the sap wood contained in Cornus controversa was measured at 32.88%, therefore it is lower durability than any others. 6. By measuring the percentage of loss in weight with regard to Schizophyllum commune, the sap wood cantained in Junipensis chinensis was calculated at 1.09%, therefore durability is very high and the sap wood contained in Populus deltoides was calculated at 36.87%, it is much lower durability than any others. 7. By measuring the percentage of loss ill weight with regard to Trametes pini, the sap wood contained in Robinia pseudo-acacia was calculated at 1.33%, therefore durability is very high and the sap wood contained in Comus controversa was calculated at 33.19%, it is much lower durability than any others. 8. By measuring the percentage of loss ill weight with regard to Paxillus panuoides. the heart wood contained in Zelkova serrata was calculated at 1.73%, therefore durability is very high and the sap wood contained in Populus deltoides was calculated at 42.30%, therefore durability in very low. 9. By measuring the percentage of loss in weight with regard to Dardalea quercina, the heart wood contained in Castanea crenata was calculated at 0.92%, therefore durability is very high and the sap wood contained in Cornus controversa was calculated at 32.00% therefore durability is very low. The above results are summarized as follows 1. Durability between the heart wood and the soft wood find that it is nonsignificant, while durability is higher heart wood than sap wood. 2. Special sorts including in the element like Castanea cenata, Robinia pseudo-acacia, Juniperus chinensis and heart wood like Betula schmiditii and Styrax obasia are highly durable and soft wood like Cornus controversa, Populus davidiana, Salix koreensis, Celtis jessensis are lowly durable in general. 3. Among the wood destroying fungi Paxillus panuoides is highly durable and as follows. Poria vaporaria, Lenzites betulina and the Daedalea quercina is less in general and Irpex consors, Mersulius lacrymans are a middle degree.

• 농약과학회지
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• 제6권4호
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• pp.271-278
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• 2002

173종 국내산 식물체의 메탄올 추출물을 대상으로 5 종의 주요 농업해충에 대해 살충 및 살비 효과를 조사한 결과 식물의 종류 및 채집부위에 따라 커다란 차이를 보였다. 173종 420 샘플을 5,000ppm 농도로 처리하였을 때 벼멸구에 강한 살충 효과를 나타낸 식물체는 초피나무 수피, 편백나무 잎과 참가시나무 잎이었다. 배추좀나방 유충에 대해서는 굴피나무 목부, 나도밤나무 수피, 회화나무 잎, 초피나무 수피, 그리고 해송 목부 추출물이 강한 살충활성을 나타내었고 회화나무 잎 및 초피 수피 추출물은 담배거세미나방유충에 강한 살충활성을 나타내었다. 점박이응애에 대해 강한 살충활성을 나타낸 식물체는 소사나무 잎, 벽오동 수피, 보리밥나무 잎, 두릅나무 잎, 층층나무 수피, 그리고 편백 잎이었다. 특히 초피나무 수피 추출물은 여러 해충에 대하여 강한 살충효과를 나타내어 해충 방제에 크게 이용할 수 있을 것으로 기대되었다.

• Journal of the Korean Wood Science and Technology
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• 제14권4호
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• pp.14-20
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• 1986

지리산(智異山)의 10종(種) 활엽수재에 대(對)한 AcBr(acetyl bromide) lignin의 UV spectrum을 조사(調査)한바 그 결과(結果)을 요약(要約)하면 다음과 같다. 1. 각수종(各樹種) 모두 spectrum curve의 최대정점(最大頂點)은 249nm에, 최소(最少) 정점(頂點)은 262-266nm에, 또 중간정점(中間頂點)은 270-280nm에 있었으며, Bj$\ddot{o}$rkman lignin이나 lignin sulfonic acid 등의 UV spectrum상(上)에서 볼수 있는 견(Shoulder)은 본(本) 연구(硏究)의 활엽수재 AcBr lignin의 spectrum에서는 볼수 없었다. 2. 10개(個) 수종(樹種) 각(各) 정점(頂點)의 평균흡광도(平均吸光度)는 249nm에서 0.457${\pm}$0.0077, 262-266nm에서 0.297${\pm}$0.0029, 280nm에서 0.309${\pm}$0.0067이었다. 3. 10개(個) 수종(樹種) 각(各) 정점(頂點)의 평균흡광계수(平均吸光係數)는 249nm에서 25.005${\pm}$0.3825, 262-266nm에서 16.264${\pm}$0.2347, 280nm에서 16.863${\pm}$0.3444였다. 4. 리그닌의 정량(定量)을 위(爲)한 270-280nm에서의 각(各) 수종별(樹種別) 리그닌의 흡광계수(吸光係數)는 다음과 같았다. 좁은잎단풍나무재(材) 16.939${\pm}$0.3735, 서어나무재(材) 17.411${\pm}$0.2937, 층층나무재(材) 16.579${\pm}$0.4348, 물푸레나무재(材) 16.385${\pm}$0.4140, 나도밤나무재(材) 16.287${\pm}$0.4156, 굴피나무재(材) 16.492${\pm}$0.1432, 산벗나무재(材) 16.343${\pm}$0.3177, 회화나무재(材) 17.549${\pm}$0.3253, 노각나무재(材) 18.400${\pm}$0.2925, 쪽동백 16.245${\pm}$0.4339였다. 5. 270-280nm에서 완만한 흡광도(吸光度) 정점(頂點)을 나타내는 것6으로 보아 본(本) 리그닌은 guaiacyl-syringyl lignin인 것으로 사료(思料)된다.