• 복식문화연구
• /
• 제2권2호
• /
• pp.283-295
• /
• 1994

A systematic classification of Korean traditional patterns has been made according to their objects and presenting methods. The classification is represented with 3 levels of categories. First, the superordinate category is composed of 7 groups of patterns, i.e. Naturals, Animals, Plants, Artifacts, Geometric, Composites, and Others. Second, the basic category is composed of motifs in each group. Third, the subordinate category is composed of 3 types, i.e. realistic, stylized, abstracted, according to the degree of simplification. As this classification is a method for organizing informations in Korean traditional patterns in a systematic way, it can offer a useful basis for computerization of the patterns.

• 동아시아식생활학회:학술대회논문집
• /
• 동아시아식생활학회 2007년도 추계학술대회
• /
• pp.15-23
• /
• 2007

Tea plant(Camellia sinensis) is one of a very few plants containing caffeine, a kind of narcotics, originates from Yunnan in China and was utilized as a medicine at the beginning and then as a drink as well as a food. The tea was introduced to Japan from China. Japanese people well developed tea manufacturing technology to produce unique teas such as Matcha(抹茶) and Sencha(煎茶), resulting in creating a culture, Tea ceremony [Chado or Sado(茶道)].

• 미생물과산업
• /
• 제15권1호
• /
• pp.29-34
• /
• 1989

It is our common understanding that biological materials like microorganisms, tissue and cell cultures, seeds, plants and animals are inevitable resources for the development of science and technology. Culture collections which are reservior of biological materials now occupy a central position in life sciences and biotechnology. The World Data Center of Microorganisms (WDC) is a infrastructure of culture collections in the world realizing quick and smooth exchanges of information and microorganisms to support research and development in those fields. The WDC was relocated from University of Queensland in Australia to out institute RIKEN in 1986. This article introduces a function for WDC in RIKEN (RIKAGAKU-KENKYUUSHO, the Institute of Physical and Chemical Research)

• Journal of Plant Biology
• /
• 제30권4호
• /
• pp.287-298
• /
• 1987

The regenerative capacities of protoplasts isolated from potato (Solamum tuberosum L.) tubers and tobacco (Nicotiana tabacum L.) mesophyll tissues were examined, and then their intergeneric protoplast fusion was carried out. The potato tuber-derived protoplasts proliferated into the calli some of which showed rudimentary shoot-like structures, which had not been attempted before from tubers, while the tobacco protoplasts were regenerated into the whole plants. Intergeneric protoplast fusion between potato and tobacco was carried out and the heteroplasmic fusion products were formed. The first cell division of some of them was observed after 5 days of culture.

• 한국생명과학회:학술대회논문집
• /
• 한국생명과학회 2007년도 제48회 학술심포지움 및 추계국제학술대회
• /
• pp.45.1-45.1
• /
• 2007

See Full Text

• Mycobiology
• /
• 제51권3호
• /
• pp.164-168
• /
• 2023

This study examined the effects of myristate on an asymbiotic culture of Rhizoglomus intraradices, a species of arbuscular mycorrhizal fungi (AMF; Glomeromycota). Mycelial growth and sporulation in a modified medium containing myristate were observed. The findings demonstrated that myristate induced R. intraradices spore formation, with daughter spores having a smaller diameter than the parent spores. This observation is consistent with previous studies on other Rhizoglomus species. Further studies are needed to investigate the potential for continuous culture, mass production using daughter spores, and the application of AMF colonization techniques in plants.

• Current Research on Agriculture and Life Sciences
• /
• 제11권
• /
• pp.11-17
• /
• 1993

완두에 있어서 보다 효율적인 형질전환 방법을 모색하고 형질전환된 개체를 얻고자 본 실험을 수행하여 얻어진 결과는 다음과 같다. 형질전환은 발아중인 완두의 생장점(shoot tip)을 제거한 다음 T-DNA내에 GUS gene과 neomycin phosphotransferase II gene이 들어있는 binary vector를 가진 Agrobacterium tumefaciens를 생장점을 제거한 부위에 감염시켰다. 감염 후 새로 형성된 shoot는 개체당 4~5개였으며, 그중 GUS유전자가 발현하는 shoot만을 정상적인 식물체로 분화 시켰다. 감염부위에서 형성된 shoot에서의 GUS유전자의 발현빈도는 10%내외였다. 이들 개체로 부터 genomic DNA를 분리하여 Dot blot hybridization분석 결과 T-DNA가 식물체 내에 존재함을 알 수 있었고, 수확한 종자를 발아시켜 Sorthern blot hybridization한 결과 T-DNA가 다음세대로 전달되었음이 확인되었으며 형질전환율은 2%이내였다.

• 한국지하수토양환경학회지:지하수토양환경
• /
• 제20권6호
• /
• pp.73-84
• /
• 2015

Nine plant species were selected through vegetation survey at three military shooting ranges at northern Gyeonggi Province. Plants were germinated in normal soil and three seedlings were transplanted to a bottom sealed pot containing sandy loam soils contaminated with either RDX (291 mg/kg) or TNT (207 mg/kg). Planted, blank (without plant), and control (without explosive compound) pots were grown in triplicate at a green house for 134 days. During cultivation, transplanted plants exhibited chlorosis and necrosis in flower and leaf by explosive toxicity and stress. Only three plants, Wild soybean, Amur silver grass, Reed canary grass, survived in TNT treated pot, while seven plant species except for field penny cress and jimson weed, thrived in RDX treated pot. Appreciable amount of TNT (61.6~241.2 mg/g-D.W.) was detected only in plant roots. Up to 763.3 mg/g-D.W. along with 4-amino-2,6-dinitrotoluene, an intermediate of TNT, accumulated in the root of wild soybean. In addition, azoxy compounds, abiotic intermediates of TNT, were detected in TNT treated soils. RDX absorbed average 1,839.95 mg/kg in shoot and 204.83 mg/kg in root. Most of TNT in plant was accumulated in underground part whereas RDX was localized in aerial part. Material balance calculation showed that more than 95% of the initial TNT was removed in the planted pots whereas only 60% was removed in the blank pot. The amount of RDX removed from soil was in the order of Amur Silver Grass (51%) > Chickweed (43%) > Evening primrose (38%). Based on the results of pot cultures, Amur silver grass and Reed canary grass are selected as tolerant remedial plants for explosive toxicity.

• 한국유기농업학회지
• /
• 제14권4호
• /
• pp.399-410
• /
• 2006

전남 남부지역의 참다래 과수원에서 발생하는 잿빛곰팡이 병원균(gray mold, Botrytis cinerea)에 대한 항균작용이 우수한 세균성 균주를 선발하기 위하여 참다래 과수원 토양으로부터 단일균주를 분리하였으며, 잿빛곰팡이 병원균(Botrytis cinerea)에 대한 생물적 제어 능력을 검정하고 균주 동정을 실시하였다. 참다래 과수원에서 분리한 총 350여종의 단일균 주 중에서 참다래에서 발생하는 잿빛곰팡이 병원균에 대하여 길항작용이 우수한 균주를 1차적으로 4종 선발하였고, 이 중에서 참다래 잿빛곰팡이 병원균에 대하여 길항작용이 86.9% 정도로 우수한 CHO 163을 최종적으로 선발하였다. 참다래 잿빛곰팡이 병원균에 대하여 길항작용이 우수한 CHO 163을 대상으로 균주의 형태적 성질, 배양적 특성 및 생리 생화학적 성질 등을 조사하여 균주의 동정을 검토한 바 Bacillus sp.와 유사한 균주로 동정되었다. 길항균으로 분리한 Bacillus sp. CHO 163은 한천배지에서 참다래 잿빛곰팡이 병원균 접종 후 길항균 처리와 열처리한 균주 배양액을 처리하였을 때 거의 완전한 항균작용을 보였다. 또한, in vitro 상에서 참다래에 잿빛곰팡이병원균을 접종하고 Bacillus sp. CHO 163의 배양액을 처리한 결과 잿빛곰팡이병원균의 방제가 확인되었다.

• Journal of Plant Biotechnology
• /
• 제43권1호
• /
• pp.110-118
• /
• 2016

We compared germination efficiency for somatic embryos (SE) of Liriodendron tulipifera using semi-solid (SS), temporary immersion bioreactors (TIB), and continuous immersion bioreactors (CIB) to produce vigorous plants. The bioreactors were designed to be immersed in liquid media with plantlets with an adjustable immersion time. TIB and CIB improved germination rates up to 80.86% and 95.21%, respectively, however, CIB produced more hyperhydric plantlets than TIB. The height of plantlets in TIB was significantly higher than for those in CIB. Fresh weights of plantlets grown in CIB of were significantly lower than for those grown in TIB. The lowest chlorophyll concentration was found in in vitro plantlets from CIB. We examined abnormally developed leaves, stems, and apical zones of in vitro plantlets that were produced in CIB. Among the three types, SS showed the highest stomatal density and the shortest stomatal length in in vitro plantlets. After acclimatization, plants from CIB exhibited the lowest values in biomass, such as height, root collar diameter, leaf fresh weight, leaf length, leaf width, petiole length, petiole diameter, and leaf area. Photosynthesis and transpiration rates of ex vitro plants were not significantly different among the three culture types, but stomatal conductance was higher in TIB than in the SS and CIB. Therefore, the results suggest that TIB is the preferable bioreactor to improve in vitro plantlet regeneration of L. tulipifera. TIB-originated plants showed higher growth rate than SS and CIB after transferring to soil.