• 식물분류학회지
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• 제38권4호
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• pp.477-502
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• 2008

본 연구는 국내산 포아풀속(Poa L.) 17분류군에 대하여, 화서, 소수(spikelet)의 형태, 소화축(rachilla), 포영(glume), 호영(lemma), 내영(palea) 등의 소수의 외부형태학적 형질을 관찰하였다. 소수의 무성아(bulbil) 유무, 화서의 돌기 유무, 호영 기반(callus)의 털 유무 그리고 내영 표면의 털, 유두상 및 자상 돌기의 유무는 아속을 구분하는 형질로, 내영 용골(keel)의 유무, 내영 용골의 털 유무, 제1포영(lower glume) 맥수, 호영 측맥(lateral nerve)의 뚜렷함은 절을 구분하는 형질로, 소화의 개수, 소화축의 유무, 제1포영 맥수, 포영 맥 위의 자상돌기의 유무, 호영 표면의 털과 유두상 및 자상돌기의 유무 등은 종의 식별형질로서 가치를 지니는 것으로 판단되었다. 따라서 한국산 포아풀속 17분류군은 3아속(Ochlopoa, Poa, Stenopoa) 7절(Arenariae, Ochlopoa, Homalopoa, Poa, Pandemos, Tichopoa, Stenopoa)로 정리되었으며, 기존 분류체계에 포함되어 있지 않은 6분류군중 P. ullungdoensis(울릉포아풀), P. takeshimana(섬포아풀), P. matsumurae(가는포아풀)의 3분류군은 Poa아속 Poa절, P. nipponica(큰꾸러미풀), P. radula(좀꾸러미풀)의 2분류군은 Poa아속 Homalopoa절, P. viridula(청포아풀)은 Stenopoa아속 Stenopoa절에 속하였다. 또한 P. nemoralis(선포아풀)은 기존에 Stenopoa아속 Stenopoa절에 속하였지만 Poa아속의 특징을 보여 Poa아속 Poa절에 옮겨져야 한다고 판단되었다. 그리고 1955년 신종으로 발표된 P. ullungdoensis(울릉포아풀)은 최근까지 그 실체가 불분명하였으나, 본 연구에서 그 실체를 확인하였다.

• 한국환경교육학회지:환경교육
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• 제14권2호
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• pp.15-27
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• 2001

The purpose of this study is to understand and compare the characteristics of the content organization system of three Environment textbooks currently used, and to examine its connectivity with the teaching & teaming methods included in the Environment subject part of the 7th Korean National Curriculum. For the analysis three Environment textbooks for middle school and their teacher's guide books by three companies. published(A, B, and C) The result of the taxonomic analysis showed that three Environment books had different steps to get to the lesson class unit in the way that A of six steps, B of five steps and C of seven steps. The amount of main text was different In the domains of'Human and Environment','Environmental Problems and its Counter-plan'and'Environmental Conservation'of three textbooks each. All of three textbooks had the biggest percentage in sub-domains of'Living Environment to Keep'and'Global Environmental Problem'in 'Environmental Problems and its Counter-plan'domain. Considering teaching & loaming methods all of three textbooks contained many activities as 55 in A, 66 in H and 91 in C. Among 9 teaching 8E teaming methods and others listed in the Environment subject part of the 7th Korean National Curriculum, the investigation method is most frequently used in all of three textbooks. The drama, the paly and the case study were used rarely as teaching & teaming methods in activities In the consideration of the content amount regarding academic fields, it was revealed that three textbooks overemphasized the aspect of natural sciences comparing the aspect of human & social sciences aspect as a whole. Generally the appendix section of all three textbooks were well organized to support the teaching and teaming activities in main text.

• Journal of Microbiology
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• 제38권3호
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• pp.122-131
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• 2000

Phylogenetic classification of the Aphyllophorales was conducted based on the analysis of nuclear small subunit ribosomal RNA (nuc SSU rDNA) sequence. Based on phylogenetic groupings and taxonomic characters, 16 families were recognized and discussed. Although many of the characters had more or less homoplasies, miroscopic characters such ad the mitic system and clamp, spore amyloidity and rot type appeared to be important in the classification of the Aphyllophorales. Phylogenetically significant families were newly defined to improve the classification of the order Aphyllophorales.

• 한국환경과학회지
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• 제11권2호
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• pp.121-130
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• 2002

Compare to investigate the taxonomic utility of infragenera system and interspecific of Asian Geranium, we examined the fruit and seed morphology from 35 taxa. The fruit shape and seed's dispersal way did so that may divide subgenus or some part section to do could reason evolutionary trends. That is, at seed dispersal, the awns of section Geranium of subgenus Geranium, ramains attached at the top of rostrum, though fairy easily broken off, because seed increases awn's elasticity by diffusive way, it is long characteristic seed\`s dispersal distance, and subgenus Robertium observed that seed dispersal distance is short because it is no awn's elasticity by way that seed dispersal is gone as awn drops with rostrum. Also, section Geranium of subgenus Geranium and subgenus Robertium act role that awn keeps temporarily breed swerving with mericarp instead of bristle because section Tuberosa of subgenus Geranium is not bristled function that keep temporarily breed because mericarp bristled on base at seed dispersal do while. Therefore, is thought that is talon that when consider formation's development and function regarding this seed dispersal function, subgenus Geraniuum evolves more than subgenus Robertium. Seed morphology can divide by 2 subgenera(Geranium, Robertium) according to pattern of seed coat. and Seed's morphology characteristic(whole shape, color, form of seed apical and base, micropyle area, hilum area, chalaza, and position of seed hilum area), can distinguish some species, but is thought that is not reasonable as for discernment characteristic form and nature by repetition of characteristic form and nature. Especially, infrasection do in fruit and seed's morphology that is handling in this research that know to argue classification system and relationship by repetition of characteristic form and nature difficult. To all reliable truth, cytological, ecological, embryology, and molecular genetics research about talon is considered that should be achieved section Geranium that do not handle yet.

• 환경생물
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• 제39권2호
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• pp.236-244
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• 2021

Unarmored dinoflagellates, in the family Kareniaceae, include harmful or toxic bloom-forming species, which are associated with massive fish kills and mortalities of marine organisms worldwide. The occurrence and distribution of the toxigenic species in the family Kareniaceae were investigated in the brackish and coastal waters of Korea between July 2018 and October 2020. During the survey, we collected seven newly recorded species; Karenia papilionacea, Karlodinium digitatum, Karl. veneficum, Karl. zhouanum, Takayama acrotrocha, T. helix, and T. tasmanica. A total of fifteen strains of the seven taxa were successfully established as clonal cultures and examined using LM, SEM, and molecular phylogeny inferred from LSU rDNA sequences. Herein, we present the taxonomic information, morphological features, and molecular phylogenetic positions of the unrecorded dinoflagellate species collected from Korean coastal waters.

• 환경생물
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• 제39권4호
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• pp.573-580
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• 2021

Unarmored and thin-walled dinoflagellates were collected from brackish and coastal waters of Korea from August 2019 to August 2021. A total of 10 species belonging to orders Sussiales and Gymnodiniales were isolated and established as clonal cultures. Of them, five species (Biecheleria brevisulcata, Lepidodinium chlorophorum, Karlodinium decipiens, Kirithra asteri, and Wangodinium sinense) are newly recorded in Korea and examined using a light microscope (LM) and a scanning electron microscope (SEM). Their molecular phylogeny was inferred from LSU rDNA sequences. Here, we present taxonomic information, morphological features, and molecular phylogenetic positions of these unrecorded dinoflagellate species.

• 대한간호학회지
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• 제33권6호
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• pp.731-742
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• 2003

Purpose: This ethnography is aimed at describing the health care seeking behavior of elderly details in their socio-cultural context. The research question is 'under what conditions did elderly informants decide to use certain professional health care services and how do they make use of all the available resources?' Method: 10 sessions of fieldwork were conducted in the two agricultural villages between Sep. 1999 and Oct. 2002. The data for this paper came from participant observation with 14 informants. In the process of analysis I used proxemic and taxonomic techniques. Result: Informants decided to use a certain health care system according to their folk definition of illness. They prefer to use the health services where they felt more comfortable and free. They wished to be care from intuitive and holistic healers. Social network and having health resources was also important factor. Conclusion: We need more comprehensive research model to reach a plausible explanation. Combined qualitative-quantitative research is needed to get practical data to develop effective health care systems for the elderly.

• Natural Product Sciences
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• 제1권1호
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• pp.86-98
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• 1995

A chemosystematic study on euphorbiaceous plants in Korea has been performed by using phenolic constituents. The phenolic characteristics of subfamilies, genera and species were well distinguished from one another. Hydrolyzable tannins as constituents were considered to be a valuable taxonomic character in elucidating systematic relationships among the related taxa whereas flavonoids could be used in the classification of infraspecific taxa in this family. The phenolic fingerprints of each of the plants would be considered as a good tool to identify the species. In comparison with the morphological classification system, the chemical relationship supported the subfamilial system of Webster (1975) and the further division of Euphorbia sensu lato by Hurusawa (1954).

• 식물분류학회지
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• 제37권4호
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• pp.447-476
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• 2007

한국산 꿩의다리속(Thalictrum) 17분류군 63집단에 대한 화분형태 관찰과 외부형태 재검토를 통하여 분류군의 한계 설정과 분류군 간의 유연관계를 파악하였다. 화분을 광학 및 주사전자현미경으로 관찰한 결과, 화사가 곤봉-막대기 모양으로 윗부분이 약의 너비보다 넓어지고, 약이 원두 또는 요두인 Sects. Physocarpum, Erythrandra, Tripterium과는 대조적으로, 화사가 실모양으로 가늘거나 약의 너비보다 좁고, 약이 예두-첨두 또는 다소 원두인 Sects. Omalophysa, Camptonotum, Thalictrum은 공구간거리가 멀고, 세 발아구 사이에 있는 자상돌기수가 많고, 화분지름이 크고, 자상돌기 높이가 낮은 경향을 보였다. 본 연구는 한국산 꿩의다리속 분류군이 모두 Microgynes절에 포함되는 Lecoyer (1885)의 분류체계를 지지하고 있으나, 이를 6개 절로 나눈 Tamura (1992)의 분류체계는 지지하지 않고, 만약 나눈다면 Lecoyer (1885)가 지적한 수술 특정과 본 연구에서 조사한 화분형태에 따라 Claviformes와 Filiformes로 나눌 수 있음을 보여준다. 외부형태를 재검토한 결과 한반도에 분포하는 분류군은 자생여부를 파악하지 못한 큰산꿩의다리(T. filamentosum)를 포함하여 총 17분류군(16종)이었고, 이들에 대한 검색표를 작성하고 분류학적 처리를 하였다.

• Animal cells and systems
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• 제16권1호
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• pp.11-19
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• 2012

A major concern regarding the collection and storage of biodiversity information is the inefficiency of conventional taxonomic approaches in dealing with a large number of species. This inefficiency has increased the demand for automated, rapid, and reliable molecular identification systems and large-scale biological databases. DNA-based taxonomic approaches are now arguably a necessity in biodiversity studies. In particular, DNA barcoding using short DNA sequences provides an effective molecular tool for species identification. We constructed a large-scale database system that holds a collection of 5531 barcode sequences from 2429 Korean species. The Korea Barcode of Life database (KBOL, http://koreabarcode.org) is a web-based database system that is used for compiling a high volume of DNA barcode data and identifying unknown biological specimens. With the KBOL system, users can not only link DNA barcodes and biological information but can also undertake conservation activities, including environmental management, monitoring, and detecting significant organisms.