• Korean Journal of Plant Taxonomy
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• v.50 no.1
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• pp.84-88
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• 2020

Fimbristylis fimbristyloides (F. Muell.) Druce (Cyperaceae) belonging to Fimbristylis sect. Fuscae Ohwi, which has been ambiguous in terms of its distribution and taxonomic substance in Korea, was found on Amtae-do Island, Sinan-gun, Jeollanam-do in Korea. F. fimbristyloides is a small species that is approximately 5-15 cm tall and differs greatly from most taxa in that the spikelets are laterally compressed. In particular, F. fimbristyloides is similar to F. ovata but is distinguished by the height of the plants, falcated leaves, the number and size of spikelets per inflorescence, glabrous styles, the size of the achenes, and the presence of achene stalks. A description, differences from related species, a key to the taxa and photographs of Korean F. fimbristyloides are provided in this paper.

• Korean Journal of Plant Resources
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• v.12 no.4
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• pp.324-339
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• 1999

Morphological reinvestigation, external characters and discriminant functional analysis(44 qualitative characters) were examined on 6 taxa of Korean Ophelia, including 5 taxa distributed in south Korea, and one taxon considered to be the variation type of Ophelia wilfordi in order to clarify the limit of intersection and interspecies. And to establish the taxonomic position. One taxon distributed in north Korea was included in the description of species by observation of herbarium specimen of the University of Tokyo in Japan. The two sections were successfully distinguished by internal structure of ovary, morphology of nectary, number of corolla lobe and calyx lobe, and species were also distinguished by morphology of cauline leaf, and color and spot of corolla, respectively. The variation type of Ophelia wilfordi was not distinguished with other species except for absent or present of purple spot in corolla lobe. The results of the discriminal functional analysis indicated that characters of corolla were the most important qualitative characters to distinguish the Ophelia taxa, and morphology of seed and seed coat was useful characters to distinguish taxa higher than species. Therefore the difficult problems of identification of species were successfully solved, and the taxonomic position in intrageneric level was clarified on Korean Ophelia.

• Korean Journal of Environment and Ecology
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• v.14 no.1
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• pp.88-98
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• 2000

본 연구는 국립공원의 산림관리에 필요한 기초자료를 제공하고자 계곡부식생을 조사하였다 계룡산국립공원의 계곡부식생을 ZM학과의 식물사회학적인 방법으로 분류한 결과 까치박달군락으로 구분되었다 까치박달군락은 다시 고로쇠나무아군락, 조릿대아군락, 병꽃나무아군락 등 3개의 아군락으로 서어나무군락은 쥐똥나무아군락 쪽동백아군란 등 2개의 아군락으로 구분되었다 까치박달군락은 서어나무군락보다 해발고가 높고 습한 지역에 분포하였다 또한 동일한 계곡이라 할지라도 입지조건 중 특히 계곡부가 위치해 있는 사면의 방위에 따라 식생구성의 차이를 나타냈다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.10a
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• pp.211-212
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• 2002

해초에 서식하는 부착생물의 생태학적인 이해를 위해 수주의 물리 화학적 요인 (수온, 염분, 영양염의 농도)이 잘피와 부착생물 및 부착조류의 성장에 미치는 영향을 알아보고자 하였다. 영양염의 농도 중 특히 질산염은 해양 수주 내에 부족할 경우 식물 플랑크톤을 비롯한 광합성 식물의 성장을 방해하는 요인으로 잘 알려져 있으며 (예, Bougis, 1976), 질산염이 부착생물에 미치는 영향에 대한 많은 연구가 수행되었다(Williams and Ruckelshaus, 1993, Coleman and Burkholde.,1994, 1995). (중략)

• Journal of Life Science
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• v.4 no.2
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• pp.50-59
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• 1994

신호전달과정의 연구는 calcium이 messenger로서 작용한다고 밝혀진 후로 식물에서 $Ca^{++}$ -messenger system에 대한 생화학적 및 분자생물학적 분야에서의 연구는 급속하게 발전하게 되었다. 식물세포에서 calcium 이온들의 많은 작용은 EF hand family로서 알려진 calcium binding protein에 의해서 조절된다. Calmodulin (CaM)은 highy conserve 되어 있으며, 4개의 calcium binding domain을 가진 ubiquitous한 단백질이다. 본 연구는 calmodulin 유전자의 발현에 미치는 calcium, EGTA, calcium ionophore 및 calmodulin antagonist의 영향과 또한 외부신호(light, wounding), chemical 및 auxin 등의 영향을 reporter화 유전자의 분석에 의해서 CaM유전자의 발현기작을 규명하고자 하였고, 또한 calmodulin 유전자의 organ-specific 발현 및 calmodulin의 새로운 생리적인 기능도 연구하고자 하였다.

• Korean Journal Plant Pathology
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• v.12 no.4
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• pp.471-475
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• 1996

콩나물의 생육부진과 부패는 콩나물 재배에 중요한 제한요인이다. 콩나물 부패 병원 진균으로 Fusarium moniliforme, F. oxysporum과 F. solani를 분리 동정하였다. 이들은 종자 발아 후 3∼5일이 지난후 콩나물의 중간 이하에 연한 갈색의 외부 병징을 만들며 발아 후 6∼7일 경에 병징이 더욱 진전하여 진한 갈색의 외부 병징을 나타냄으로써 콩나물에 대한 병원성이 인정되었다. Hand-section과 microtome-section에 의한 병태 조직학적 관찰에서 F. oxysporum 접종 후 4일이 경과하여 초기 병징을 보인 조직에서 균사가 피층, 세포간극, 목부, 사부, 수에 분포하고 있음이 관찰되었다.

• Korean Journal of Plant Taxonomy
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• v.36 no.2
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• pp.129-136
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• 2006

Thymus quinquecostatus var. magnus (Nakai) Kitam., an endemic taxon in Ulleung Island, is lectotypified. The lectotype is designated based on careful examination of the original materials (deposited in TI) cited in the protologue of the variety. In addition, taxonomic identity of T. quinquecostatus var. japonicus H. Hara, a problematic name often mistakenly referred to the above taxon, was throughly reexamined.

• Korean Journal of Environment and Ecology
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• v.27 no.2
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• pp.147-169
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• 2013

The vascular plants of Is. Yeonpyeongdo regions, located in Ongjin-gun, Incheon were surveyed from May to October 2010. The vascular plants collected 4 times were consisted of total 524 taxa; 90 families, 315 genera, 459 species, 4 subspecies, 53 varieties and 8 formas respectively. Among them, 2 taxa endemic species of Korea and 8 taxa of Korean rare plants were investigated in addition to 38 taxa of specially designated plants announced by the Ministry of Environment. The naturalized plants were 66 taxa, therefore naturalized ratio was 12.6% highly.

• Journal of Life Science
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• v.26 no.9
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• pp.1097-1104
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• 2016

With the development of next generation sequencing (NGS), large numbers of transcriptional molecules have been discovered. Most transcripts are non -coding RNAs (ncRNAs). Among them, long non-coding RNAs (lncRNAs) with more than 200 nucleotides represent functional RNA molecule that will not be translated into protein. In plants, lncRNAs are transcribed by RNA polymerase II (Pol II) or Pol III, Pol VI and Pol V. After transcription of these lncRNAs, more RNA processing mechanisms such as splicing and polyadenylation occurs. The expression of plant lncRNAs is very low and is tissue specific. However, these lncRNAs are strongly induced by specific external stimuli. Because different external stimuli including environmental stresses induce a large number of plant lncRNAs, these lncRNAs have been gradually considered as new regulatory factors of various biological and development processes such as epigenetic repression, chromatin modification, target mimicry, photomorphogenesis, protein relocalization, environmental stress response, pathogen infection in plants. Moreover, some lncRNAs act as precursor of short RNAs. Although a large number of lncRNAs have been predicted and identified in plants, our current understanding of the biological function of these lncRNAs is still limited and their detailed regulatory mechanisms should be elucidated continuously. Here, we reviewed the biogenesis and regulation mechanisms of lncRNAs and summarized the molecular functions unraveled in plants.

• Korean Journal of Plant Taxonomy
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• v.41 no.4
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• pp.415-428
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• 2011

The vascular flora in the Mt. Cheongtae area, located Pyeongchang-gun in Gangwon-do, were surveyed 14 times from April of 2008 to October of 2011. The result of this survey revealed 663 taxa in total, comprising 89 families, 342 genera, 577 species, 6 subspecies, 73 varieties and 7 forms. In the flora of this area, 19 taxa were Korean endemic plants and 24 taxa were rare and endangered plants of Korea. The floristic regional indicator plants found in this area were 136 taxa comprising 4 taxa of grade V, 16 taxa of grade IV, 31 taxa of grade III, 41 taxa of grade II and 44 taxa of grade I. Naturalized plants in Korea numbered37 taxa. In addition, 485 taxa were categorized by usage into 8 groups, as follows: 240 edible, 8 fiber, 177 medical, 60 ornamental, 245 pasturing, 2 industrial, 12 dyeing and 16 timer plants.