• Title/Summary/Keyword: 식물 인식

Search Result 281, Processing Time 0.028 seconds

Analysis of receptor like kinase (RLK) gene to stress in rice (Oryza sativa L.) using real-time PCR (Real-time PCR을 이용한 스트레스에 따른 벼의 Receptor like kinase (RLK) 유전자의 발현 변화 분석)

  • Kang, Min-Hee;Kim, Il-Wook;Han, Sang-Hoon;Yun, Choong-Hyo;Yoon, Byoung-Su
    • Journal of Plant Biotechnology
    • /
    • v.35 no.4
    • /
    • pp.281-290
    • /
    • 2008
  • In plant, Receptor-like kinases (RLKs) are protein family, though its function is not yet understood, consisted of a predicted signal sequence, single transmembrane region, and cytoplasmic kinase domain. RLKs are involved in hormonal response pathways, cell differentiation, plant growth and development, self-incompatibility, and symbiont and pathogen recognition. In this study, expression levels of RLG1, RLG5, RLG6, RLG#6, RLG8, RLG10, RLG17, RLG18 and RLG20 were analyzed by Real-time PCR, when rice (Oryzae sativa) was treated abiotic stress. The expression levels of all RLGs were compared each other by analyzed value of threshold cycles ($C_T$). Consequently, RLGs were suppressed by NaCl as salinity stress, and expression of each RLK genes were showed difference treated salicylic acid and wound, respectively. However, All RLGs were induced under low temperature condition. Therefore, our results indicate protection-function of RLK genes to be an early response of rice against cold weather.

Antioxidative Activities and Inhibitory Effects on Tyrosinase and Elastase by Water Extracts of Allium sp. (Allium 속 식물 물 추출물의 항산화 활성과 Tyrosinase 및 Elastase 저해 효과)

  • Jia, Yuan;Yang, Ming;Park, Inshik
    • The Korean Journal of Food And Nutrition
    • /
    • v.28 no.2
    • /
    • pp.247-252
    • /
    • 2015
  • Three different Allium plants, including wild garlic (Allium monanthum Max; AMM), onion (Allium cepa L.; ACL) and green onion (Allium fistulosum L; AFL), have been widely used as spicy food in daily life. This study was attempted to investigate the properties of antioxidant, whitening and anti-wrinkle activities in water extracts in Allium plants. The antioxidant, whitening and anti-Wrinkle activities were evaluated by performing DPPH and ABTS radical scavenging activities, inhibitory effects on tyrosinase, and elastase, respectively. The water extract (10 mg/mL) of onion, wild garlic and green onion exhibited DPPH radical scavenging activities of 28.46%, 28.45%, and 15.91%, respectively. The inhibitory effects of tyrosinase activities by wild garlic, green onion, and onion were increased by heating the extracts at $90^{\circ}C$. Additionally, the wild garlic extract showed higher elastase inhibitory activity than those of other plant extracts. These results suggest that water extracts of Allium plants may be useful as potential sources of beauty foods due to higher antioxidant, anti-melanin and anti-wrinkle activities.

Development of Mask-RCNN Model for Detecting Greenhouses Based on Satellite Image (위성이미지 기반 시설하우스 판별 Mask-RCNN 모델 개발)

  • Kim, Yun Seok;Heo, Seong;Yoon, Seong Uk;Ahn, Jinhyun;Choi, Inchan;Chang, Sungyul;Lee, Seung-Jae;Chung, Yong Suk
    • Korean Journal of Agricultural and Forest Meteorology
    • /
    • v.23 no.3
    • /
    • pp.156-162
    • /
    • 2021
  • The number of smart farms has increased to save labor in agricultural production as the subsidy become available from central and local governments. The number of illegal greenhouses has also increased, which causes serious issues for the local governments. In the present study, we developed Mask-RCNN model to detect greenhouses based on satellite images. Greenhouses in the satellite images were labeled for training and validation of the model. The Mask-RC NN model had the average precision (AP) of 75.6%. The average precision values for 50% and 75% of overlapping area were 91.1% and 81.8%, respectively. This results indicated that the Mask-RC NN model would be useful to detect the greenhouses recently built without proper permission using a periodical screening procedure based on satellite images. Furthermore, the model can be connected with GIS to establish unified management system for greenhouses. It can also be applied to the statistical analysis of the number and total area of greenhouses.

산삼(山蔘)에 대한 문헌적(文獻的) 고찰(考察)

  • Kwon, Ki-Rok;Owi, Jong-Song;Kim, Seong-Wook
    • Journal of Pharmacopuncture
    • /
    • v.6 no.2
    • /
    • pp.67-75
    • /
    • 2003
  • Objective : 본 연구는 문헌적 고찰을 통하여 산삼의 기원과 산삼에 대한 정확한 인식, 그리고 인삼과의 차이점 등을 규명하는 것을 목표로 하였다. Result : 1. 삼(蔘)에 대한 최초의 문헌기록연대는 BC 50년경이고, 처방으로는 AD 200년경 상한론에서 최초로 언급되었다. 2. 인삼재배시기를 14세기라고 가정하고, 그 이전의 의서에 기재되어있는 인삼은 산삼을 지칭하는 것으로 볼 수 있다. 3. 15세기 전후의 의서(醫書)를 비교해 볼 때 인삼의 기미(氣味), 효능(效能) 그리고 주치(主治)에 있어서 큰 차이를 나타내지 않고 있었다. 4. 오가과(五加科) 식물 인삼(人蔘)이 자생적으로 산에서 자란 것을 야산삼(野山蔘)(산삼(山蔘)), 재배한 것을 원삼(圓蔘)(인삼(人蔘)), 어린 야산삼(野山蔘)(산삼(山蔘))을 밭에 옮겨 키웠거나, 어린 원삼(圓蔘)(인삼(人蔘))을 산에 옮겨 키운것을 이산삼(移山蔘)(산양산삼(山養山蔘))이라 한다. 5. 산삼의 수령은 뇌두의 수나 몸체에 형성된 띄(횡추(橫皺))의 수, 그리고 잎과 줄기의 모양 등을 관찰하여 추정하고 있다. 6. 인삼의 약리학적인 효능은 신경계통, 생체의 반응성, 내분비 계통, 물질 대사적인 측면에서 우수한 효능을 발휘하는 것이 보고되었다.

Analysis of the Urushiol in Korean Lacquer (한국산 옻칠의 우루시올 성분 분석)

  • Kim, Jung-Bae
    • The Korean Journal of Food And Nutrition
    • /
    • v.19 no.3
    • /
    • pp.267-270
    • /
    • 2006
  • In Korea, for a long time Rhus verniciflua has traditionally been used as an herbal medicines plants. A stem of Rhus verniciflua has been used to treat gastrointestinal trouble with in form of boiled chicken as a folk medicine. But it has been recognized as an extremely active allergen causing skin reactions. The chief allergenic component, urushiol, is found within the oleoresinous sap of Rhus verniciflua. Most components of urushiol have unsaturated side chains. These unsaturated side chains of urushiol are important to polymerization of these natural products. The urushiol components in Korean lacquer were isolated by reversed phase HPLC. The molecular weight of purified urushiol was determined as 340 from mass analysis. This compound was identified as Heptadecatetraenyl catechol (MW 340).

EFFECT OF GINSENG EXTRACT ON OXYGEN CONSUMPTION IN RAT LIVER MITOCHONDRIA (인삼 추출물이 세포의 산소소모에 미치는 영향)

  • TSO Wung-Wai
    • Proceedings of the Ginseng society Conference
    • /
    • 1984.09a
    • /
    • pp.141-144
    • /
    • 1984
  • With microorganism as a single cell model to investigate the cellular effect of total extract of ginseng powder, it was found that ginseng affects cellular respiration biphasically (Tso and Fung, 1980; Tso, 1981). As ginseng is recognized to be a tonic medicinal herb, this finding suggests a possible role of ginseng in altering cellular energy metabolism. Along this line, the same effect on mitochondrial oxygen consumption was studied. It was found that under a controlled pH condition, a significant stimulation of the mitochondrial respiration was observed. This stimulation was ginseng dose-dependent. However, when ginseng was applied at an above threshold concentration, an inhibitory effect was noted. This confirms the previous observation with single cell organism and suggests a universal regulation of energy metabolism effect that transcends cell origin.

  • PDF

A Systematic Study on the Cimicifuga foefida L Complex and Related Species (Ranunculaceae) (Cimicifuga foetida L. Complex 및 근연종(미나리아재비과)에 대한 분류학적 연구)

  • 박종욱
    • Journal of Plant Biology
    • /
    • v.37 no.1
    • /
    • pp.111-124
    • /
    • 1994
  • The delimitation and systematic relationships of the C. foetida complex and related species were evaluated by numerical methods, including principal components analysis and cluster analysis of major morphological characters. Results of these analyses strongly support recognition of three varieties in C. foetida; these include C. foetida var. foetida, C. foetida var. micrantha, and C. foetida var. velutita. The results also indicated that C. brachycarpa, C. frigida, C. heracleifolia, and C. yunnanensis are distinct species, and C. heracleifolia comprises C. heracleifolia var. heracleifolia and C heracleifolia var. bifida. Cimicifuga mairei and C. foetida var. foliolosa, however, appeared to be morphologically indistinguishable from C. foetida var. velutina. In addition, C. foetida var. longibracteata and C. foetida var. bifula are conspecific with C. frigida.rigida.

  • PDF

A Survey of Creating the Botanical Garden for the Disabled (장애인을 위한 식물원 조성에 관한 인식조사에 관한 연구)

  • Cho, Dong-Gil;Jin, Hye-Young;Shin, Ji-Hoon
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.13 no.5
    • /
    • pp.90-105
    • /
    • 2010
  • Because of various stresses with rapid change of social structure, the number of the disabled increase steadily. So, the interest of touch garden which the disabled interact with nature and communicate with the non-disabled is more in demand. This study carried out a survey for landuse, facilities, therapeutic garden in creating touch gardens targeting the disabled using them. The results are as follows: At first, the appropriate natural facilities can lead return visit of the disabled. The second, general facilities for information and barrier-free are insufficient. The third, the disabled demand more places for sense of touch and vision, and, also they demand more places for feeling various living things and sense of the season. And the last, the disabled have no experience in therapeutic gardens, but they have consensus for creating special places for the disabled. This study carried out a survey for specially designated user such as the disabled, but through it, it is expected to establish developed design guidelines for creating touch gardens and therapeutic gardens.

Development of microarrayer for manufacturing DNA chip used in genome project (I) - A summary of research trend in-and-out of state - (유전자 검색을 위한 DNA chip 제작용 로봇 시스템의 개발(I) - 국내외 연구동향 -)

  • 이현동;김기대;임용표;김찬수
    • Proceedings of the Korean Society for Agricultural Machinery Conference
    • /
    • 2002.02a
    • /
    • pp.407-412
    • /
    • 2002
  • 세계는 지금 post-genome 시대에 접어들고 있고, 하루에도 수백개 이상 밝혀지는 새로운 유전정보들이나 모든 유전암호가 밝혀진 생물들을 기존의 방법들로 연구한다는 것은 너무나 많은 시간을 요구한다. 즉, 인간 게놈 프로젝트 뿐만 아니라, 식물 게놈 프로젝트 등 다양한 분야에서 DNA chip의 필요성이 인식되고 있다. 그러나 우리나라는 DNA chip의 생산에 있어서 chip 제작에 필수적인 DNA chip 제작용 microarrayer를 고가를 들여 수입에 의존하고 있는 실정이다. 이는 DNA chip 생산비를 높이고, 더 나아가 우리나라 생명공학분야 연구의 발전에 악영향을 미치는 결과를 초래할 수 있다. 몇몇 국내 생산 업체가 있지만, 아직 그 실요성을 입증하지 못하였고, 대부분의 chip 공급업체는 아직 수입품을 사용하고 있는 상태이다. 이에 본 연구에서는 microarrayer의 국산화를 통해 안정적 DNA chip 및 microarrayer의 공급을 위해 microarrayer의 개발에 관해 수행하는 연구이며, 앞으로의 연구방향을 다음과 같이 설정하였다. 1) 유전자 검색을 위한 DNA chip 제작용 로봇 시스템 (microarrayer)을 pin 타입으로 설정한다. 2) 정밀도 향상을 위하여 로봇 시스템의 구동은 XYZ 직교좌표형으로 설정한다. 3) 1$cm^2$당 5,000개 정도의 DNA를 붙일 수 있도록 한다.

  • PDF

An Agro-ICT Convergence Model for Smart Agricultural Service Based on IoT (IoT기반의 지능형 농업서비스를 위한 농업ICT 융합 모델)

  • Kwak, Kyunghun;Kim, Hong-geun;Cho, Kyongryong;Park, Jangwoo;Cho, Yongyun
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2015.04a
    • /
    • pp.1033-1035
    • /
    • 2015
  • 최근, IT기술과의 융합은 전 산업 분야에서 활발히 적용되고 있으며, 기후 및 환경변화와 식품 안전에 대한 관심의 증대와 함께, 농축수산업 분야에서의 ICT융합 연구 시도가 크게 증가하고 있다. 특히, 농업환경에서의 생산성 향상 및 식품 안전성 확보를 위해 다양한 형태의 상황정보 기반 연구와 센서 네트워크를 활용한 지능형 서비스 제공 기술 연구가 활발히 진행되고 있다. 본 논문에서는 다양한 장비 및 센서가 컴퓨팅 장비와의 네트워킹을 통해 식물공장 및 유리온실과 같은 시설농업환경에서 지능형 농업서비스를 제공하기 위한 농업ICT 융합 모델을 제안한다. 제안하는 서비스 융합모델은 센서를 통해 획득한 다양한 상태정보를 인식하기 위해 상황정보 모델과, 이를 장비와 센서간에 공유된 지식으로 표현하고 활용하기 위한 온톨로지 모델을 사용한다. 제안하는 서비스 융합 모델은 농업ICT 융합 환경에서의 IoT기반 지능형 서비스를 위한 향후 관련 연구에 도움을 줄 것으로 기대한다.