• Journal of Plant Biology
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• 제17권4호
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• pp.18-22
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• 1974

Counts of herb stems were made with each systematic grid sized 10cm by 1300cm within six apparently homogeneous herb layers under the open young Japanese red pine, Pinus densiflora, stands. The stands had often been subjected to strong human interferences such as burning, cutting, grazing, and denuding since human settlement until the conservation scheme practiced in these stands for last decade. In addition, amounts of loss of ignition and field capacity were determined to detect soil heterogeneity among and within the stands. The values of information measure of diversity(H), and Hurlbert's probability of interspecfic encounter(Δ), obtained here do not show any consistent correlation. The amount of interspecific competetion(Δ1), the ratio of interspecific to intraspecific competetion(Δ4), Levin's niche breadth(Sh), and species evenness(V), increase, while the amount of intraspecific competetion decrease, as the soil factors become favorable. One stand examined does not follow the above trends, which is more young and shows strong within site heterogeneity of the soil factors. The stand includes pioneer species which is not detectable without detailed observation. It is argued that in stable or favorable environment more intense interspecific competetion and less intraspecific competetion might occur, but this situation does not necessarily always bring smaller niche breadth. In this connection, the results support Hurlbert's contention that the two components of diversity should be analyzed separately.

• 한국자원식물학회지
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• 제1권1호
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• pp.93-116
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• 1988

The plants medicinal resourees of Mt. Joghe were investigeted 10 times from January, 1988 to October, 1988. In order to analyze the vegetation of Joghemountain area, herb plants structure and distribution. Herb plants of Joghe moun-tain consisted of 102 families, 265 species in all. The resources of important herbdrugs were Gramineae, Cyperaceae Oleaceae, Araceae, Polygonaceae, Caryophyllaceae,Ranunculaceae, Theaceae, Cruciferae, Liliaceae, Rosaceae, Geranjaceae, Violaceae,Vitaceae, Umbelliferae, Labiatae, Solanaceae, Campanulaceae, Rutaceae, Compositae,Dioscoreaceae, Fagaeeae, Moraceae, Anacardiaceae, Legum inosae, Cupressaceae, andJuelandaceae. The herb drugs were comparatively more than in other mountains inour country.

• 한국환경복원기술학회지
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• 제20권2호
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• pp.13-35
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• 2017

This study was carried out to analyze vegetation structure and change of the disturbed area in forest ecosystem(FE), riparian ecosystem(RE) and coastal ecosystem(CE) related to Regional Ecological Network at Chungnam province through constancy and dominance analysis, species diversity index, similarity index and canonical correlation analysis. Data were collected from April to October in 2015. As a result of constancy and dominance analysis of forest disturbed area, non-effective species(NES) was 30 species(17.0%), exported species(ES) was 98 species(55.7%) and imported species(IS) was 48 species(27.3%) among the total 176 species, respectively. In riparian disturbed area with total 139 species, there were 16 NES(11.5%), 98 ES(70.5%) and 25 IS(18.0%) respectively. In coastal disturbed area with 140 species, there were 20 NES(14.3%), 88 ES(62.9%) and 32 IS(22.9%) respectively. In all types of disturbed areas, the ratio of ES was higher than IS. As a result of species diversity, species richness and shannon's diversity index of disturbed area decreased in all kinds of crown strata such as tree, subtree, shrub and herb layer compared to the control area. As a result of similarity index, that of each type between control site and disturbed site was 0.374 in FE, 0.329 in CE and 0.259 in RE in the order. As a result of the CCA analysis, the number of present species, vine plants ratio and exported species ratio in disturbed area of FE and RE were decreased, and the naturalized plant ratio, imported species ratio and herb ratio were increased. But environmental factors of CE were not shown any clear tendency. In conclusion, many species occupied in control site disappeared into the disturbed area, and the naturalized plants and herb species were abundantly imported in the area. Therefore, it was considered that this study could be applied to the development of long-term and short-term ecological restoration techniques in view of vegetation changes.

• 한국환경생태학회지
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• 제28권4호
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• pp.419-423
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• 2014

우리나라에서 개미가 종자를 분산시키는 식물종과 그 종자의 특성을 밝히고자, 2012년 4월부터 2013년 10월까지 열매 수집, 전파체 특성, 관련된 개미종을 조사하였다. 개미가 종자를 퍼뜨리는 엘라이오솜을 종자에 부착한 8종의 식물을 추가로 확인하였다. 종자에 부착된 엘라이오솜의 형태는 종마다 형태나 크기가 매우 다양하였다. 전파체를 물어가는 개미종은 곰개미, 곰뿔개미, 누운털개미, 주름개미, 긴호리가슴개미, 고동털개미 등 6종이었으며, 일본왕개미나 몸집이 작은 사쿠라개미 등은 전파체를 물어가지 않았다. 이러한 결과는 여름철에 개화하는 식물종도 개미와 엘라이오솜을 매개로 하는 상리공생함을 확인하였다. 앞으로 개미가 종자를 퍼뜨리는 자생 식물종을 파악하기 위한 많은 연구가 필요하다.

• Advances in Traditional Medicine
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• 제7권1호
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• pp.26-33
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• 2007

Genetic polymorphism and molecular authentication were investigated with the commercial medicinal herb, Peony (Paeonia spp.), using random amplified polymorphic DNA (RAPD) markers. To identify the polymorphism of the RAPD patterns among plant origins, 20 different random primers were applied to the genomic DNA extracted from Paeonia spp. plants such as Paeonia (P.) lactiflora, P. officinale and P. japonica. Ten primers out of 20 primers could be used to discriminate the plant species in the same genus and 72 out of 81 scored DNA fragments (88.9%) generated with these primers were polymorphic. Especially, four primers, such as OPA1, OPA3, OP9, and OPA13, were useful to discriminate the plant origins among the species of Peony. In the results of cluster analysis using RAPD data obtained from the 10 primers, Peony (Paeonia spp.) plants used in this study were grouped into the two distinctive clusters, genetically. Herb medicine, especially P. lactiflora, were easily identified, when species-specific primers were applied to the investigation for discriminating herb medicine currently traded in domestic herb market, Kyungdongmart. Consequently, RAPD analysis was useful method to discriminate plant origins and the commercial medicinal herbs, Paeonia spp..

• Journal of Ecology and Environment
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• 제42권1호
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• pp.1-11
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• 2018

Background: In the study, the effects of elevated $CO_2$ and temperature on the nitrogen content, carbon content, and C:N ratio of seven rare and endangered species (Quercus gilva, Hibiscus hambo, Paliurus ramosissimus, Cicuta virosa, Bupleurum latissimum, Viola raddeana, and Iris dichotoma) were examined under control (ambient $CO_2$ + ambient temperature) and treatment (elevated $CO_2$ + elevated temperature) for 3 years (May 2008 and June 2011). Results: Elevated $CO_2$ concentration and temperature result in a decline in leaf nitrogen content for three woody species in May 2009 and June 2011, while four herb species showed different responses to each other. The nitrogen content of B. latissimum and I. dichotoma decreased under treatment in either 2009 and 2011. The leaf nitrogen content of C. virosa and V. raddeana was not significantly affected by elevated $CO_2$ and temperature in 2009, but that of C. virosa increased and that V. raddeana decreased under the treatment in 2011. In 2009, it was found that there was no difference in carbon content in the leaves of the six species except for that of P. ramosissimus. On the other hand, while there was no difference in carbon content in the leaves of Q. gilva in the control and treatment in 2011, carbon content in the leaves of the remaining six species increased due to the rise of $CO_2$ concentration and temperature. The C:N ratio in the leaf of C. virosa grown in the treatment was lower in both 2009 and 2011 than that in the control. The C:N ratio in the leaf of V. raddeana decreased by 16.4% from the previous year, but increased by 28.9% in 2011. For the other five species, C:N ratios increased both in 2009 and 2011. In 2009 and 2011, chlorophyll contents in the leaves of Q. gilva and H. hamabo were higher in the treatment than those in the control. In the case of P. ramosissimus, the ratio was higher in the treatment than that in the control in 2009, but in 2011, the result was the opposite. Among four herb species, the chlorophyll contents in the leaves of C. virosa, V. raddeana, and I. dichotoma did not show any difference between gradients in 2009, but decreased due to the rise of $CO_2$ concentration and temperature in 2011. Leaf nitrogen and carbon contents, C:N ratio, and chlorophyll contents in the leaves of seven rare and endangered species of plant were found to be influenced by the rise and duration of $CO_2$ concentration and temperature, species, and interaction among those factors. Conclusions: The findings above seem to show that long-term rise of $CO_2$ concentration, and temperature causes changes in physiological responses of rare and endangered species of plant and the responses may be species-specific. In particular, woody species seem to be more sensitive to the rise of $CO_2$ concentration and temperature than herb species.

• 한국자원식물학회지
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• 제1권1호
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• pp.23-32
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• 1988

전남지역에서 3대 명산중의 하나인 모후산 지역에 분포되어 있는 한약자원식물을 수집 및 분류하여 약용작물로 재배하기 위한 기초자료로 활용하고자 이 지역의 한약자원 식물의 분류를 조사한 결과는 다음과 같았다. $\bullet$ 모후산에 분포되어 있는 한약자원 식물은 58과 230종으로 분류되었다. $\bullet$ 분류수종중 초본류는 질경이, 차조기, 쇠무릎, 우엉, 사삼, 반하, 하수오, 결명자, 용담초, 맥문동, 하고초, 산삼, 도라지, 둥글레, 참마, 칡, 대계등 17종과 대본류는 인동초, 참으아리, 방기, 목퉁, 엄나무, 구기자, 산수유, 밤나무, 매화, 인진호, 희첨, 지유, 초오등 13종이 한약재료로 많이 사용되는 것들이었다.

• Mycobiology
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• 제47권1호
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• pp.120-125
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• 2019

In 2017, small, elliptical, brownish purple spots on spears and ferns of asparagus were found in fields of Gangwon-do. The isolated fungal species was identified as an ascomycete Stemphylium vesicarium based on morphological characteristics and molecular phylogenic analyses including nucleotide sequences of the internal transcribed spacer (ITS), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), and cytochrome b (cytb). A pathogenicity test revealed that S. vesicarium was the causal agent of purple spot disease on asparagus. The occurrence of purple spots caused by S. vesicarium on asparagus is the first report in Korea.

• 한국산림과학회지
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• 제103권2호
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• pp.165-174
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• 2014

본 연구는 유전자원보호구역 및 국립공원으로 지정된 계방산의 하층식생구조와 고도 및 사면별 지표종을 구명하기 위해 실시하였다. 조사지 출현식물은 80과 203속 303종 38변종 5품종 4아종 총 350분류군으로 확인되었다. 중요치 분석결과, 관목층에서는 미역줄나무(9.143%), 당단풍나무(7.594%), 노린재나무(6.347%) 등이 우점 하였고, 초본층에서는 조릿대(8.653%), 오리방풀(2.936%), 대사초(2.897%) 등이 우점 하는 것으로 나타났다. NMS 분석결과, 주요종의 분포범위는 고도별 영향이 있는 것으로 밝혀졌다(관목층: $R^2$ >0.3, 초본층: $R^2$ >0.6). Plexus diagram 분석결과, 당단풍나무는 함박꽃나무, 청시닥나무, 참회나무 등과 연관성이 있으며, 초본층의 벌깨덩굴은 투구꽃, 박새, 귀룽나무 등과 연관성이 있는 것으로 분석되었다. 고도에 따른 유의성 있는 지표종은 60종, 사면방위별 유의성 있는 지표종은 30종이 분석되었다. MRPP-test 결과, 고도에 따른 집단 간 종조성은 이질적이며, 사면방위에 따른 종조성은 NE와 SW 간에 이질성이 큰 것으로 분석되었다.

• 한국자원식물학회지
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• 제31권1호
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• pp.37-51
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• 2018

국내에 분포하는 천남성속의 계통학적 유연관계와 한약재 천남성(Arisaematis Rhizoma)으로 사용되는 천남성 3종(둥근잎천남성, 두루미천남성, 일파산남성)에 대한 분류학적 특징을 분석하기 위하여 천남성속 식물에 대한 분자계통학적 연구를 수행하였다. 3개의 범용성 DNA 바코드(ITS, matK, rbcL) 염기서열을 이용하여 국내 분포 천남성속 8분류군과 중국에 분포하는 약전수재 종 1분류군을 포함하는 9종 50개 시료와 같은 과의 Dracunculus vulgaris를 군외군으로 하여 유연관계를 분석하였다. 3개의 개별 DNA 바코드 염기서열과 이들을 유합한 염기서열로 계통학적 유연관계를 분석한 결과, 천남성속의 9 분류군은 6개의 독립적인 분계조를 형성하며 구별되었으며(Clade I, 둥근잎천남성 및 천남성; Clade II, 점박이천남성 및 섬남성; Clade III, 큰천남성; Clade IV, 일파산남성; Clade V, 두루미천남성; Clade VI, 무늬천남성 및 거문천남성), 이들 6개의 분계조는 각각 Pedatisecta절, Sinarisaema절, 및 Tortuosa절로 분류되었다. 또한 이들 DNA 바코드 구간의 비교 결과는 천남성속 식물의 종 및 종 이하 분류 단위의 분류학적 재검토의 필요성에 대한 중요한 정보를 제공하였다. 하지만 대한민국약전에 수재되어 한약재로 사용가능한 3종의 천남성 기원종의 종내 분류학적 연관성이나 분자계통학적 특징은 확인되지 않았다.