• 제목/요약/키워드: northern Chinese

검색결과 205건 처리시간 0.026초

Salicylic Acid and Wounding Induce Defense-Related Proteins in Chinese Cabbage

  • Kim, Hong-Nam;Cha, Jae-Soon;Cho, Tae-Ju;Kim, Hak-Yong
    • Animal cells and systems
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    • 제7권3호
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    • pp.213-219
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    • 2003
  • The response of plants to pathogens and wounding is dependent upon very sensitive perception mechanisms. Although genetic approaches have revealed a variety of resistance genes that activate common defense responses, defense-related proteins are not well characterized in plants. Therefore, we used a proteomic approach to determine which defense-related proteins are induced by salicylic acid (SA) and wounding in Chinese cabbage. We found that SA and wounding induce pathogenesis-related protein 1a (PR1a) at both protein and mRNA levels using proteomics and Northern blot analysis, respectively. This indicates that our proteomic approach is useful for identifying defense-related proteins. We also identified several other proteins that are induced by SA or wounding. Among the seven SA-induced proteins identified, four may be defense-related, including defense-related protein, phospholipase D (PLD), resistance protein RPS2 homolog, and L-ascorbate peroxidase. Out of the six wounding-induced proteins identified, three may be defense-related: heat shock cognate protein 70 (HSC70), polygalacturonase, and peroxidase P7. The precise functions of these proteins in plant defense responses await further study. However, identification of the defense-related proteins described in this study should allow us to better understand the mechanisms and signal transduction pathways involved in defense responses in Chinese cabbage.

Refined numerical simulation in wind resource assessment

  • Cheng, Xue-Ling;Li, Jun;Hu, Fei;Xu, Jingjing;Zhu, Rong
    • Wind and Structures
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    • 제20권1호
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    • pp.59-74
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    • 2015
  • A coupled model system for Wind Resource Assessment (WRA) was studied. Using a mesoscale meteorological model, the Weather Research and Forecasting (WRF) model, global-scale data were downscaled to the inner nested grid scale (typically a few kilometers), and then through the coupling Computational Fluid Dynamics (CFD) mode, FLUENT. High-resolution results (50 m in the horizontal direction; 10 m in the vertical direction below 150 m) of the wind speed distribution data and ultimately refined wind farm information, were obtained. The refined WRF/FLUENT system was then applied to assess the wind resource over complex terrain in the northern Poyang Lake region. The results showed that the approach is viable for the assessment of wind energy.

Isolation and Characterization of a Mesophilic Arthrospira maxima Strain Capable of Producing Docosahexaenoic Acid

  • Hu, Hongjun;Li, Yeguang;Yin, Chuntao;Ouyang, Yexin
    • Journal of Microbiology and Biotechnology
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    • 제21권7호
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    • pp.697-702
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    • 2011
  • A strain of the cyanobacterium Arthrospira was isolated from Lake Chahannaoer in northern China and was characterized according to microscopic morphology, photosynthetic oxygen-evolving activity, growth rate, and nutritional profile. Compared with thermophilic Arthrospira species occurring naturally in tropical and subtropical lakes, this isolate is mesophilic and grows optimally at ${\sim}20^{\circ}C$. The total protein, fatty acid, phycocyanin, carotenoid, and chlorophyll a contents were 67.6, 6.1, 4.32, 0.29, and 0.76 grams per 100 grams of dry weight, respectively. The strain is rich in polyunsaturated fatty acids (PUFAs). An essential omega-3 fatty acid, docosahexaenoic acid (DHA), was detected, and ${\gamma}$-linolenic acid (GLA) and DHA accounted for 28.3% of the total fatty acid content. These features of this newly isolated strain make it potentially useful in commercial mass culture in local areas or as a biofuel feedstock. It is also an alternative resource for studying the metabolic PUFA pathways and mechanisms of cold stress tolerance in cyanobacteria.

형질전환 담배 식물체에서 Glutathione Reductase 유전자의 발현 (Expression of Glutathione Reductase Gene in Transgenic Tobacco Plant)

  • 이효신;조진기
    • 식물조직배양학회지
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    • 제28권2호
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    • pp.87-90
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    • 2001
  • 배추 유래의 cytosolic glutathione reductase 유전자 (BcGR1)의 지속적 발현과 형질전환 식물체의 oxidative stress에 대한 내성과의 관계를 분석하기 위하여, BcGR1 유전자를 CaMV 35S promoter의 하류에 연결한 다음, 담배에 형질전환하였다. PCR 및 Southern blot 분석을 통하여 BcGR1 유전자가 정상적으로 삽입된 32 계통의 T$_{0}$ 식물체를 선발하였다. Northern blot 분석 결과, 도입된 유전자가 형질 전환 식물체 내에서 항상적으로 발현된다는 것을 확인하였으며, 도입 유전자의 copy number와 발현량 사이에는 정의 상관관계를 보이지 않았다.

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중국 전통 여성복 디자인 요소의 조형적 분석과 전통복식을 융합한 현대 중국 여성복 선호도에 관한 연구 (A study on the formative analysis of Chinese traditional women's clothing design elements and preference of modern Chinese women's clothing reflecting traditional clothing)

  • 이계진;김지현;나미향
    • 한국의상디자인학회지
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    • 제24권4호
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    • pp.117-133
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    • 2022
  • In order to reflect traditional elements in modern design, designers should be able to creatively apply elements of traditional Chinese clothing. To understand this, a deep understanding of and insights into the traditional clothing culture are required. In this study, the characteristics of traditional Chinese women's clothing from the Wei, Jin, and Northern and Southern Dynasties of China to the Qing Dynasty were analyzed by dividing them into silhouette, color, pattern, materials, and detail. The characteristics of the silhouette were classified into A, H, X, and O types, of which types A and H were the most common. As for the color characteristics, there are relatively many five cardinal colors, and for the contrast of colors complementary colors were mainly used. As the for pattern characteristics, real patterns, animal patterns, character patterns, geometric patterns, and mixed patterns were used. Four types of materials were mainly used: silk, hemp, cotton, and wool. The detail characteristics were also anlyzed by classifying them into collar, sleeve, neckband, and gusset. Based on the results of this analysis, a satisfaction survey was conducted on the design of modern Chinese women's clothing. The result of satisfaction with design elements showed that the images of vest and suit were most preferred, H and X silhouettes, and yellow and white were the most preferred. Geometric and plant patterns were preferred, as were silk and acetate materials. Based on the result of chi-square analysis of design element preferences according to the characteristics of the subject, there was no difference according to occupation, residential area, or income, and there were differences in silhouette, color, materials, and detail according to age.

중국 북부 연안의 잘피: 역사적 감소추세 및 현황에 대한 사례 (Seagrasses in Northern Chinese Seas: Historical Declines and Case Study of the Status)

  • 장쑤에레이;리얀;리우핑;순핑;왕샤오;판시량;쑤퀸쳉
    • 한국해양환경ㆍ에너지학회지
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    • 제13권4호
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    • pp.305-312
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    • 2010
  • 잘피밭은 많은 생태계서비스를 제공하는 경제적 가치가 매우 높은 연안습지의 한 종류다. 중국에서도 북부연안을 따라 넓은 잘피밭이 분포하나 오랫동안 중요성이 간과되어 왔고 연구도 부족한 실정이다. 본 논문은 최초로 중국 북부연안 잘피의 종류와 분포를 제시하였으며, 과거로부터 현재까지의 변동양상을 기술하여 역사적인 감소추세를 분포와 생물량의 관점에서 기술하였다. 대표적인 잘피밭의 현황을 나타내기 위해 추다오 지역을 선정하여 사례를 제시하였다. 환경조건이 좋은 곳에서는 잘피도 회복되고 있으며, 잘피밭에 의존하는 플랑크톤과 어류, 돌고래 등 해양포유류도 풍부하였다. 역사적인 감소추세와 현상황에 대한 원인이 토의되었으며 보호를 위하여 필요한 연구내용을 제시하였다.

1990년대 이후 중국 당대 성장소설에 나타난 가족결핍과 그 서사적 대응방식 (A Study on Narrative Response to the Lack of Family in the Chinese Contemporary Growth Novel After the 1990s)

  • 김봉연
    • 비교문화연구
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    • 제47권
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    • pp.1-26
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    • 2017
  • 본 논문은 1990년대 이후 발표된 여화(余華)의 "재세우중호함(在細雨中呼喊)"(1993), 소동(蘇童)의 "성북지대(城北地帶)"(1994), 왕강(王剛)의 "영격역사(英格力士)"(2004)에 나타난 가족결핍과 그 서사적 대응방식을 살펴보는 것을 목적으로 삼는다. 소설에 공통적으로 등장하는 소재인 결핍된 가족은 존재의 부재를 뜻하기도 하지만 그 기능과 역할의 부재를 의미하기도 한다. 결핍을 야기하는 원인은 작품마다 서로 다르며 대응 양상 또한 차이를 보인다. 중국의 성장 서사는 오랜 시간 동안 전통의 유제와 여러 가지 정치적 압박 속에서 성장과정에서 일어나는 부모와의 갈등, 성장자 자신의 내면의 고통들을 집단의 경험 속에 매몰시켰다. 성장의 기억을 개인에게 돌려주기 시작했던 1980년대의 선취에 힘입어 1990년대 성장 서사는 지나간 연대의 강박과 피로에서 벗어난 작가들의 다양한 시도 속에서 더욱 풍부한 함의를 지니고 있다. "가랑비 속의 외침"은 친부모와 양부모에게 의도치 않은 '버려짐'을 당한 주인공의 심리적 고아의식을 보여주었고, "성북지대"는 부재된 가족에게 염증을 느끼고 또래 집단 속에서 위안을 받는 아이들의 서로 다른 성장의 이야기를 들려준다. "오, 나의 잉글리쉬 보이"는 동일시의 대상을 등장시킨다는 점에서 중국 성장소설의 주류적 서사와 구분된다. 개인의 성장은 그를 통해 진일보하고 결국 성장자 자신의 정체성을 확립하게 된다는 점에서 이 소설은 성장소설의 모범사례로 여겨진다.

BATC SURVEY: AUTOMATED PHOTOMETRY AND STRATEGY FOR OBJECT CLASSIFICATION, REDSHIFT, AND VARIABILITY

  • BYUN YONG-IK
    • 천문학회지
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    • 제29권spc1호
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    • pp.125-126
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    • 1996
  • Beijing-Arizona-Taipei-Connecticut (BATC) survey is a long term project to map the spectral energy distribution of various objects using 15 intermediate band filters and aims to cover about 450 sq degrees of northern sky. The SED information, combined with image structure information, is used to classify objects into several stellar and galaxy categories as well as QSO candidates. In this paper, we present a preliminary setup of robust data reduction procedure recently developed at NCU and also briefly discuss general classification scheme: redshift estimate, and automatic detection of variable objects.

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Candidate Genes with Ovulation by Differential Display PCR in Small Tail Han Sheep

  • Liu, Shufang;Li, Hongbin;Song, Xuemei;Wang, Aihua;Wei, Caihong;Du, Lixin
    • Asian-Australasian Journal of Animal Sciences
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    • 제19권9호
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    • pp.1229-1233
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    • 2006
  • To find the candidate genes concerned with ovulation rate of sheep, Differential Display Reverse Transcription Polymerase Chain Reaction was employed to find the differently expressed cDNA controlling ovulation in the Small Tail Han sheep of polyembryony and in Tan sheep of single birth. Twenty-four primer pairs of three anchored primers and eight arbitrary primers were assembled to amplify the specialized bands from these sheep. Positive cross tests were applied to optimize the ascertainable PCR conditions in which different special bands can be identified by silver strain in one PCR tube. After eliminating the false positive PCR products by Northern hybridization, 24 differential display bands were acquired from the ovary in the Small Tail Han sheep. These EST bands were sequenced and 18 different ESTs were found in which five ESTs had several copies and 13 ESTs had only one copy. Comparing these ESTs with homologous sequences by BLAST in the GenBank, there were six ESTs with known open reading frame (ORF) and function, three ESTs with known ORF and no function, and 9 ESTs without homologous sequence. These ESTs partly represent several genes such as NOS2, tensin, TCRA, CDKN1A, ESR1 and ACTB which express especially in Small Tail Han sheep.

Prevalence and Subtypes of Blastocystis in Alpacas, Vicugna pacos in Shanxi Province, China

  • Ma, Ye-Ting;Liu, Qing;Xie, Shi-Chen;Li, Xiao-Dong;Ma, Yuan-Yuan;Li, Tao-Shan;Gao, Wen-Wei;Zhu, Xing-Quan
    • Parasites, Hosts and Diseases
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    • 제58권2호
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    • pp.181-184
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    • 2020
  • Blastocystis, an enteric protist, has been reported to be an important cause of protozoal gastrointestinal manifestations in humans and animals worldwide. Animals harboring certain Blastocystis subtypes (STs) may serve as a potential source of human infection. However, information about the prevalence and genetic diversity of Blastocystis in alpacas is limited. In the present study, a total of 366 fecal samples from alpacas in Shanxi Province, northern China, were examined for Blastocystis by PCR amplification of the small subunit rRNA gene, followed by sequencing and phylogenetic analysis. The prevalence of Blastocystis in alpacas was 23.8%, and gender difference in the prevalence of Blastocystis was observed. The most predominant Blastocystis ST was ST10, followed by ST14 and ST5. The detection of ST5, a potentially zoonotic genotype, indicates that alpacas harboring ST5 could be a potential source of human infection with Blastocystis. These data provide new insight into the prevalence and genetic diversity of Blastocystis in alpacas.