• 식물분류학회지
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• 제43권3호
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• pp.196-207
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• 2013

전 세계 Juncus (골풀속)의 속내 분류체계는 최근 Kirschner에 의해 2아속 10절로 정리된 바 있으며, 두 아속은 소포의 유무와 화서에 의해 구분되며, 각각의 절은 잎의 특징, 화서의 위치, 수술, 종자의 형질 등에 따라 구분된다. 현재까지 한국산 Juncus 분류군들을 구분하는 형질들에 대한 종합적 검토는 미흡한 상태이다. 그러므로 본 연구는 지금까지 한반도에 자생한다고 보고된 분류군들 중 채집 및 표본조사가 가능한 14개의 Juncus 분류군들에 대하여 국내 11개 표본관으로부터 약 950점의 표본을 대여하여 조사하였고, 이들에 대한 지하경, 잎, 화서, 꽃, 과실, 종자 등의 외부형태학적 형질들에 대한 형질상태의 유형을 파악하여 도해하고, 분류군들 간의 구분성을 검토하였다. 이를 바탕으로 주요 식별 형질들을 이용한 검색표를 제시하였다.

• 환경생물
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• 제34권2호
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• pp.79-90
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• 2016

본 연구는 가막만에 서식하는 중형저서동물의 계절적인 변화와 공간분포 특성을 연구하였다. 2009~2010년에 걸쳐 10개 정점에서 2월, 6월 10월에 총 6회 조사를 실시하였다. 가막만에 서식하는 중형저서동물의 군집구조, 분류군 다양도, N/C ratio를 분석하였다. 연구기간 동안 선형동물과 저서성 요각류의 서식밀도가 가막만의 중형저서동물 그룹중 가장 높은 서식밀도를 나타냈다. 분류군 다양도 값은 가막만의 내만역에 비해 외해에 인접한 정점들이 높은 값을 나타냈다. N/C ratio는 각 지역별로 저서생태계의 오염을 모니터링 하기 위한 지수인데, N/C ratio 분석결과 가막만의 내만역의 N/C ratio 값이 외해에 인접한 정점들에 비해 높은 값을 나타내 내만역의 오염도가 상대적으로 높은 값을 나타냈다.

• ALGAE
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• 제32권3호
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• pp.171-179
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• 2017

The strictly freshwater red algal order Batrachospermales has undergone numerous taxonomic rearrangements in the recent past to rectify the paraphyly of its largest genus Batrachospermum. These systematic investigations have led to the description of new genera and species as well as re-circumscription of some taxa. Specimens collected from two locations in the southeastern USA were initially identified as being allied to Batrachospermum sensu lato, but could not be assigned to any recognized species. Representative rbcL (plastid) and COI-5P (mitochondrion) sequences showed these specimens to be similar to each other and not closely matching the previously published sequence data for other Batrachospermum taxa. Comparison of sequence variation and morphology with a broader range of batrachospermalean taxa resulted in the proposal of a new monotypic genus Lympha mucosa gen. et sp. nov. to accommodate these specimens. Lympha mucosa is sister to members of a newly described genus Volatus, but the two genera are easily distinguished based on straight versus curved, twisted or spirally coiled carpogonial branch, respectively. This new taxon has morphological similarities to Batrachospermum sections Turfosa and Virescentia, but can be differentiated based on genetic divergence in rbcL and COI-5P as well as a combination of morphological characters: dense, compressed whorls, axial carposporophytes with a single type of gonimoblast filament; cortication of the main axis closely appressed; and short, straight carpogonial branch arising from the pericentral cell and carpogonia with unstalked, lanceolate trichogynes. This new taxon adds to the freshwater red algal diversity of the southeastern USA, a region already known for biodiversity and high endemism of the aquatic flora and fauna. It is also a relevant new addition to the taxonomic knowledge of the freshwater red algal Batrachospermales.

• Journal of Species Research
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• 제4권2호
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• pp.152-158
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• 2015

Dendranthema boreale and D. indicum are easily distinguished from other Korean Dendranthema spp. by having yellow flowers. We have found a putative new taxon of Dendranthema having white flowers, except for sharing most characters with Dendranthema boreale. The chloroplast (cp) genome of the putative new taxon of Dendranthema, Dendranthema sp. K247003, registered in National Agro-Biodiversity Center (ABC), was completely characterized as a genetic barcode. The cp-genome of Dendranthema sp. K247003 was 151,175-bp in size: LSC was 82,886-bp, IR 24,971-bp, SSC 18,347-bp. The cp-genome of Dendranthema sp. K247003 contains 113 genes and 21 introns consisted of 79 protein coding genes, 4 RNA genes, and 30 tRNA genes, with 20 group II introns and one group I intron. Some of the genes and there introns were duplicated in IR. The cp-DNA of Dendranthema sp. K247003 is distinguished from that of D. boreale IT121002 by 67 SNPs in genic regions of 24 protein coding genes and by a 9-bp INDEL in ycf1. Further cp-DNA study will give us better information on genetic markers of Dendranthema species.

• Journal of Species Research
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• 제9권3호
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• pp.233-246
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• 2020

A scientific name is one of changeable terms in biology whenever additional research results of specific taxa is accumulated. The Database of the National Species List of Korea (DBNKo) was developed to manage taxonomic information of Korean species, designed to describe the changeable and complex taxonomical structure and information. A Korean Taxonomical Serial Number (KTSN) was assigned to each taxon, different from the normally used systems that the scientific name was considered as primary key to manage higher rank of taxa systematically. Common names were also treated with the KTSN, reflecting that common name is considered as one type of taxon. Additional taxonomic information (e.g., synonyms, original names, and references) was also added to the database. A web interface with an intuitive dashboard presenting taxonomic hierarchical structure is provided to experts and/or managers of the DBNKo. Currently, several biological databases are available in the National Institute of Biological Resources (NIBR) such as a specimen database, a digital library, a genetic information system, and the shared species data based on the DBNKo. The DBNKo started sharing species information with other institutions such as the Nakdonggang National Institute of Biological Resources. It is an ideal centralized species database to manage standardized information of Korean species.

• 한국자원식물학회지
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• 제19권6호
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• pp.700-705
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• 2006

Present studies were performed to determine the physiology of seed germination in Viola species native to Korea. Twelve species, 1 variety and 1 form were collected, classified and used as materials: V. collina, V. blandaefomis, V. rosii, V. chaerophylloides, V. phalacrocarpa, V. patrinii, V. mandshurica, V. mandshurica for. albescence, V. seoulensis, V. yedoensis, V. keiskei, V. variegata, V. variegata var. chinensis, and V. verecunda. V. tricolor 'Helen Mount' was also used to compare wild with cultivated species. In order to investigate the effect of temperature on seed germination, seeds stored at $4{\pm}2^{\circ}C$ for 10 months or 4 years were incubated at 10, 15, 20, $25^{\circ}C$ under 16h illumination with 4 replicates per treatment. Seeds which had not germinated at $10^{\circ}C$ were transferred to $30^{\circ}C$ to assess the effect of temperature change in germination. Germination percent and the days of first, 40% and 80% germination were assessed. Capability of seed germination varied with taxon; Species belonging to subsection Patellares had high ability of germination, compared to species in the other subsections, and series Chinensis was the best among subsection Patellares. Species capable of high germination germinated in all temperatures with reasonably high germination rate, but the other species responded sensitively to temperature with different germination patterns. Higher the temperature, shorter the incubation time required for first, 40% and 80% of germination. Therefore, high temperature was effective in almost all species, not only for inducing high rate of germination but also the uniformity of germination. Temperature change from $10^{\circ}C\;to\;30^{\circ}C$ had a positive effect on seed germination.

• 식물분류학회지
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• 제47권4호
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• pp.316-321
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• 2017

한국에 백록고사리[Tectaria fuscipes (Wall. ex Bedd.) C. Chr.]를 처음으로 보고한다. 이 종은 한국에서 보고된 바 없는 미늘창고사리과(Tectariaceae Panigrahi)의 미늘창고사리속(Tectaria Cav.)에 속한다. 백록고사리는 거의 직립하거나 비스듬히 올라가는 지하경, 이형엽 또는 반이형협, 유리맥이 있는 특징이 있다. 이종은 제주도 서귀포시 한라산 남서부 사면에 분포하고 있으며, 중국의 남부지역과 대만에서도 자생한다. 일본에는 미늘창고사리속 식물 8종이 보고되어 있으나 백록고사리는 아직 보고되지 않았다. 제주도는 지금까지 알려진 백록고사리의 분포 지역 중 가장 최북동 지역이며, 그 서식처는 작은 수직동굴 내부로 한정되어 있다.

• 식물분류학회지
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• 제40권3호
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• pp.163-168
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• 2010

지금까지 우리나라에 자생하는 꿀풀속 식물은 꿀풀(Prunella vulgaris var. lilacina Nakai), 두메꿀풀(P. vulgaris var. aleutica Fernald), 흰꿀풀(P. vulgaris for. albiflora Nakai)이 알려져 있는데, 국내 주요 표본관들의 표본조사를 통하여 P. pinnatifida Pers.가 다수 채집된 바 있음을 확인하였고, 이들 중 전남 신안군 자은도에서의 분포를 재확인하였다. 꿀풀, 두메꿀풀, 흰꿀풀은 식물체 전체의 잎들이 거치가 없거나 미약한 거치가 있는 장타원형임에 비하여 갈래꿀풀의 잎은 매우 심하게 갈라진 열편들로 이루어져 있다. 이에 본 분류군의 국명을 갈래꿀풀로 칭하고 국내 미기록 분류군으로 보고하고자 한다. 갈래꿀풀에 대한 기재, 도해와 함께 갈래꿀풀을 포함한 한국산 꿀풀속 식물에 대한 검색표를 제시하였고, 갈래꿀풀의 분류학적 문제점들을 논의하였다.

• 한국자원식물학회지
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• 제12권4호
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• pp.324-339
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• 1999

한국산 쓴풀속(용담과) 식물 중 남한에 분포하는 5분류군과 변이체라 생각되는 1분류군, 총 6분류군에 대하여 외부형태학적 형질을 재검토하였고 판별분석(44개의 양적형질)을 수행하여 절과 종간의 한계를 분명히 하여 종 동정의 어려움을 해결하고 분류학적 위치를 설정하고자 본 연구를 수행하였다. 또한 북한에 분포하는 1분류군은 동경대학의 소장품을 관찰하여 분류군의 기재에만 사용하였다. 조사결과, 밀선의 전체적 형태, 화관과 꽃받침의 열편수에 의해 2개 절로 구분되었으며 경생엽의 형태와 화관의 색과 무의에 의해 종간 구분이 가능하였다. 변이체라고 생각되었던 큰잎쓴풀(화관 열편에 자색 점무의를 갖는 분류군) A형은 자색 점 이외의 형질들에서는 전혀 차이를 찾아볼 수 없어 모종의 변이 폭에 넣는 것이 타당하다고 생각된다. 판별분석에 의해 쓴풀속의 식물들을 구별하는 중요한 양적형질은 화관에 관여하는 형질들임이 밝혀졌다. 종자의 형태와 종피의 형질은 종이상을 구별하는 매우 유용한 형질로 밝혀졌다. 따라서 한국산 쓴풀속 식물들에 대한 종 동정의 어려움을 해결하였으며, 속내의 분류학적 위치를 명확히 하였다.

• Journal of Ecology and Environment
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• 제42권4호
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• pp.240-258
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• 2018

Background: Several investigations carried out from large brackish lagoons in South Korea. However, no studies have yet examined phytoplankton in lagoons that changed to freshwater, such as Cheonjin Lake. The present study examined the algae from Cheonjin Lake. Methods: Samples were collected at monthly inetrvals from May 2017 to April 2018, from the surface layer using a plankton net (mesh size $20{\mu}m$), and sequeezing submerged macrophytes. Microscopic examinations were conducted at a magnification of 200 to 1000x using a Zeiss microscope (Axio Imager. A2), and photographs were taken with an AxioCam HRC camera. Silica-scaled samples of Chrysophyta for SEM were placed on coverglass, air dried, coated with gold, and then examined with a Hitachi SV8220 SEM. Results: A total of 376 taxa from six major algal groups (Chlorophyta, Chrysophyta, Euglenophyta, Cyanophyta, Dinophyta, and Cryptophyta) were identified. Among these algae, 28 taxa of desmids, 9 taxa of Euglenophyceae, 4 taxa of Chlorophyceae, 2 taxa of Chrysophyceae, and 1 taxon of Xanthophyceae are reported for the first time in Korea. A new species, Cosmarium hexagonum sp. nov was described. The phytoplankton communities were characterized by an abundance of Desmids (within Charophyceae) accounted for 148 taxa from 22 genera. Species richness were particularly high in the Autumn. Conclusion: In this study, a total 376 taxa of 148 desmids (Charophyceae), Chlorophyceae (103 taxa), Chrysophyceae (53 taxa), Euglenophyta (49 taxa), Dinophyta (8 taxa), and Cryptophyta (2 taxa) were identified from Cheonjin Lake. Twenty-eight taxa of desmids including a new species (Cosmarium hexagonum sp. nov.), 9 taxa of Euglenophyceae, 4 taxa of Chlorophyceae, 2 taxa of Chrysophyceae, and 1 taxon of Xanthophyceae were newly recorded in Korea.