http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
엽록소 형광반응을 이용한 인삼 유전자원의 습해 스트레스 평가
지무근,홍영기,김선익,박용찬,이가순,장원석,권아름,성봉재,김미선,조용구 한국식물생명공학회 2022 JOURNAL OF PLANT BIOTECHNOLOGY Vol.49 No.3
Measuring chlorophyll fluorescence (CF) is a useful tool for assessing a plant’s ability to tolerate abiotic stresses such as drought, waterlogging and high temperature. Korean ginseng is highly sensitive to water stress in paddy fields. To evaluate the possibility of non-destructively diagnosing waterlogging stress using chlorophyll fluorescence (CF) imaging techniques, we screened 57 ginseng accessions for waterlogging tolerance. To evaluate waterlogging tolerance among the 2-year-old Korean ginseng accessions, we treated ginseng plants with water stress for 25 days. The physiological disorder rate was characterized through visual assessment (an assigned score of 0-5). The physiological disorder rates of Geumjin, Geumsun and GS00-58 were lower than that of other accessions. In contrast, lines GS97-62, GS97-69 and GS98-1-5 were deemed susceptible. Root traits, chlorophyll content and the reduction rates decreased in most ginseng accessions. Further, these metrics were significantly lower in susceptible genotypes compared to resistant ones. All CF parameters showed a positive or negative response to waterlogging stress, and this response continuously increased over the treatment time among the genotypes. The CF parameter Fv/Fm was used to screen the 57 accessions, and the results showed clear differences in Fv/Fm between the susceptible and resistant genotypes. Susceptible genotypes had an especially low Fv/Fm value of less than 0.8, reflecting damage to the reaction center of photosystem II. It is concluded that Fv/Fm can be used as a CF parameter index for screening waterlogging stress tolerance in ginseng genotypes.
인삼 육성계통(수집자원) 및 품종의 유전적 다양성 분석
지무근,성봉재,김선익,이가순,김수동,권아름,김현호 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.05
Background : The several studies on the characteristics of Korean ginseng cultivars and breeding lines have already been carried out the level of molecular classification analysis in Korea. In spite of where Geumsan is a representative place of Korean ginseng, Geumsan native species (breeding lines) have not yet been carry out analysis of morphological, genetic characteristics and relationship. We have plan to carry out morphological, genetic characteristics and relationship for Geumsan native species, breeding lines. Furthermore, We could be used diverse genetic resources for Ginseng breeding. Methods and Results : In this study, a total of 71 breeding lines and variety (GS97-1 - Geumwon) consisting of native ginseng collections from Geumsan was analyzed to identify for Korean ginseng variety respectively, and clustered for the selection of Geumsan native ginseng in Korea using DNA markers. We collected 71 Ginseng breeding lines from Geumsan. Analyses of the genetic characteristics of the collection were conducted for extraction gDNA using sprout. We were measured DNA concentration using QIAxpert (QIAGEN). Each DNA sample was quantified at the final DNA concentration of 5 ng/㎖ using sterilized distilled water. Korean ginseng 14 variety and 57 Ginseng breeding lines from Geumsan could be identified polymorphism using the selected 6 primer (MFGp183, MFGp130, MFGp110_E, UFGp163, MFGp108 and UFGp156). Conclusion : These finding could be used for morphological and genetic characteristics for produced native ginseng in Geumsan area. Futhermore, we could be used diverse genetic resources for Ginseng breeding.
지무근,성봉재,김선익,이가순,김수동,권아름,김현호 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.10
Background : In this study, We will compare germination rate for each bed soil moisture content and find optimal seed germination on bed soil condition. This study was carried out germination efficiency related percent germination, germination energy, mean germination time and germination seed treated bed soil moisture content by volume on dehisced Korean ginseng seeds. Methods and Results : This study was used for conventional seeds of dehisced Korean ginseng seeds. In order to bed soil moisture treatment, We was dried on the soil until 1.5% moisture content and treated 12 different bed soil, soil 100 g volume up water 10 ㎖ for 10% soil moisture content, that contain moisture content (1.5 - 59.66%) at intervals 5 - 10% moisture content in Wagner ports. For bed soil moisture content test, We was sowed 61 Korean ginseng seeds each port on 18-May. In order to maintain the moisture content, The top of the port was covered with vinyl for blocked from the outside air. After sowing seeds, We was examined the germination rate, germination strength (GS), mean days per germination (MDG), and germination speed (GR) at every two days. Our results showed that germination rate was 94.5% at 47.07% moisture content. It had over 90 percent germination rate from 40.90 to 59.96% moisture content. High germination rate treatments also was higher with another traits such as germination strength (GS), mean days per germination (MDG), and germination speed (GR). Conclusion : The germination rate is very important in Korean ginseng cultivation of direct sowing. The soil moisture content is one of the most important environment related germination rate of ginseng seeds. According to our result, 40.90 to 59.96% bed soil moisture content had over 90 percent germination rate. These finding could be used to increase high germination rate, is required to proper irrigation. We will need to proper moisture content to increase high germination rate not only bed soil but also soil.