http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
양파의 성숙배 배양을 통한 체세포배발생 캘러스 유기 및 식물체 재분화
조광수,허은주,홍수영,문지영,Cho Kwang-Soo,Hur Eun-Joo,Hong Su-Young,Moon Ji-Young 한국식물생명공학회 2005 식물생명공학회지 Vol.32 No.1
양파의 재분화 체계 확립을 위해 성숙된 양파의 종자로부터 성숙배를 적출한 후 2,4-D와 BA의 다양한 농도를 이용하여 체세포배발생 캘러스의 형성율을 조사하였다. 체세포 배발생 캘러스는 쉽게 부서지는 특성을 가지고 있었으며 비체세포배발생 캘러스는 물기를 많이 포함하고 있어 쉽게 구분이 가능하였다. 체세포배발생 캘러스는 picloram $2.5\;\cal{mg/L}$ 또는 $5\;\cal{mg/L}$가 단독으로 포함된 MS배지를 이용하여 $25^{\circ}C$ 암배양 4주 후 가장 높은 유도율을 나타내었다. 그러나 유도된 캘러스를 shoot로 재분화 시킨 결과 2,4-D와 BA $1\;\cal{mg/L}$가 혼합된 처리구에서 가장 높은 shoot 유기율을 나타내었다. 따라서 다른 처리에서 유도된 캘러스를 2,4-D와 BA $1\;\cal{mg/L}$가 포함된 액체배지에 현탁배양을 시도하였다. 현탁배양은 캘러스의 증가뿐만 아니라 캘러스의 cell cycle을 synchronized 함으로서 이후 형질전환이 용이할 것으로 판단되었다. 현탁 배양된 캘러스는 Kinetin $1\;\cal{mg/L}$가 포함된 1/2 MS 배지에서 60일간 광배양 하여 shoot 유기하였으며 유도된 shoot는 NAA $0.5\;\cal{mg/L}$가 포함된 발근배지에서 발근 후 순화하여 완전한 식물체로 재생할 수 있었다. To obtain regeneration system of onion, we analyzed the effects of 2,4-D and BA concentration on the embryogenic callus induction from mature embryos. The highest embryogenic callus induction ratio was shown on MS medium (Murashie and Skoog 1962) containing $2.5\;\cal{mg/L}\;or\;5\;\cal{mg/L}$ picloram after mature embryos were placed on medium. When induced callus were cultured on half strength of MS medium containing $1\;\cal{mg/L}$ Kinetin, the highest shoot formation ratio was observed on MS medium containing $1\;{mg/L}$ 2,4-D and $1\;{mg/L}$ BA. Embryogenic callus were cultured in MS liquid medium containing $1\;\ccal{mg/L}$ of 2,4-D and $1\;\cal{mg/L}$ BA. The suspension cultured cell clumps could be mass propagated. Embryogenic callus were friable, but non-embryogenic callus included a lot of moisture, hence the identification between embryogenic and non-embryogenic callus as easily achieved. When embryogenic callus as cultured on half strength of MS medium containing $1\;\cal{mg/L}$ Kinetin, shoots were induced. The whole plantlet was obtained on rooting medium containing $0.5\;\cal{mg/}$ of NAA.
국내 감자 품종 판별을 위한 다중 초위성체 마커 세트 개발
조광수(Kwang-Soo Cho),원홍식(Hong-Sik Won),정희진(Hee-Jin Jeong),조지홍(Ji-Hong Cho),박영은(Young-Eun Park),홍수영(Su-Young Hong) 한국원예학회 2011 원예과학기술지 Vol.29 No.4
To analyze the genetic relationships among Korean potato cultivars and to develop cultivar identification method using DNA markers, we carried out genotyping using simple sequence repeats (SSR) analysis and developed multiplex-SSR set. Initially, we designed 92 SSR primer combinations reported previously and applied them to twenty four Korean potato cultivars. Among the 92 SSR markers, we selected 14 SSR markers based on polymorphism information contents (PIC) values. PIC values of the selected 14 markers ranged from 0.48 to 0.89 with an average of 0.76. PIC value of PSSR-29 was the lowest with 0.48 and PSSR-191 was the highest with 0.89. UPGMA clustering analysis based on genetic distances using 14 SSR markers classified 21 potato cultivars into 2 clusters. Cluster I and II included 16 and 5 cultivars, respectively. And 3 cultivars were not classified into major cluster group I and II. These 14 SSR markers generated a total of 121 alleles and the average number of alleles per SSR marker was 10.8 with a range from 3 to 34. Among the selected markers, we combined three SSR markers, PSSR-17, PSSR-24 and PSSR-24, as a multiplex-SSR set. This multiplex-SSR set used in the study can distinguish all the cultivars with one time PCR and PAGE (Polyacrylamide gel electrophoresis) analysis and PIC value of multiplex-SSR set was 0.95.
ITS 염기서열을 이용한 한국산 참취속 식물의 유연관계분석
홍수영(Su-Young Hong),조광수(Kwang-Soo Cho),유기억(Ki-Oug Yoo) 한국원예학회 2012 원예과학기술지 Vol.30 No.2
This study was carried out to decide ITS (internal transcribed spacer) sequence of some Korean native Aster species and to resolve their relationship among Korean native Aster, including Kalimeris, Gymnaster, Heteropappus genus separated from Aster in a previously study based on the pappus length. We registered 11 ITS sequences of Aster species including A. glehni to GenBank and those sequences were used for the cluster analysis with Kalimeris species. The size of ITS1 was varied from 248 to 256 bp, while ITS2 was varied from 220 to 222 bp. The G + C content of the ITS region ranged from 49.4 to 53.5%. Pairwise comparison results showed that the substitution rate of ITS1 and ITS2 region was 9% and 10%, respectively. Kalimeris sensu strict substitution rate was lower than that of Aster sensu strict species. The strict consensus parsimonious cluster analysis showed A. tripolium is the first branching from the clade and the next is A. scaber. The Kalimeris species except for the A. hispidus were grouped into the same clade with high bootstrap value (91%) within Aster. Gymnaster and Heteropappus that has been classified by morphological characters were also grouped into broad sense Aster clade. These results implied these three genera could be merged together into Aster based on the ITS sequences.
서종택(Jong-Taek Suh),조광수(Kwang-Soo Cho),양미희(Mi-Hee Yang),홍수영(Su-Young Hong) 한국원예학회 2005 원예과학기술지 Vol.23 No.4
This study was conducted to produce the mutant plant from wild Lilium leichtlinii native to Korea. To get the new plant, the seeds of wild Lilium leichtlinii were treated by colchicine as concentrations of 10, 20, and 30 ㎎ㆍℓ?¹ and also soaked for 12, 24 and 48 hours, respectively. A marginally variegated mutant with better ornamental value was selected by colchicine treatment soaked for 24 hours, 20 ㎎ㆍℓ-1 concentration to wild Lilium leichtlinii seeds. The mutant was partly albino in leaf rims. The color of a leaf in mutant consisted with 3/5 white and 2/5 green. Plant height, leaf number and leaf width of mutant was 76.5, 33.3, and 0.73 ㎝, respectively. But those in normal plants were 96.0, 39.0, and 0.80 ㎝, respectively. However, the length of leaf in mutant was 11.8 ㎝ longer than that of normal plant 7.6 ㎝. And the size of guard cells in mutant was 5,097 ㎛² per cell twice larger than that of normal plants 2,665 ㎛² per cell.
조건부 가치측정법을 이용한 사용자 경험 디자인 가치평가 모델의 탐색
이진성(Jinsung Lee),조광수(Kwang-Su Cho),최준호(Junho Choi) 한국HCI학회 2016 한국HCI학회 논문지 Vol.11 No.1
본 연구는 사용자 경험(UX)에 대한 경제적 가치 평가 모델을 탐색하고 적용하는 것을 목적으로 수행되었다. 스마트폰 잠금해제 UX를 대상으로 터치형, 지문인식, 홍채인식에 대해 조건부 가치측정법(contingent valuation method, CVM)을 적용하였다. 경제적 가치를 산출하기 위한 가치추정법 중에서 조건부 가치측정법을 선택한 이유는 잠금해제와 같은 인터페이스 요소들은 스마트폰을 이용할 때 중요한 사용자 경험적 가치이지만 시장에서 별개로 거래되지 않는 비시장 재화이기 때문이다. 스마트폰 잠금해제를 조건부 가치측정법 중 이중 양분선택형 방식(double-bounded dichotomous choice)으로 설문조사하여 로짓 모형으로 분석한 결과 터치형 잠금해제 인터페이스는 529원, 지문인식 잠금해제는 4,214원, 홍채인식 잠금해제는 1,376원으로 경제적 가치가 나타났다. 즉, 지문인식 잠금해제가 가장 높은 경제적 가치를 나타냈으며, 그 다음으로 홍채인식, 터치형 순이었다. 이 연구의 주요 기여점은 UX 디자인에 대해 경제적 가치를 평가하는 방법론적 시도를 수행하였고, 체계적이고 신뢰도 있는 결과를 산출하였다는 점이다. This study aimed to assess the economic value of the UX design and applied contingent valuation method (CVM) to the three smartphone screen unlock interface types: touch, fingerprint, and iris recognition. The contingent valuation method was chosen from various economic valuation approaches because the interface components such as the screen unlock are important user experience values but non-market goods which are not traded independently. Using the double-bounded dichotomous choice approach of the contingent valuation method, the survey results of the logit model showed that the economic value of touch unlock interface was 529 won, fingerprint was 4,214 won, and iris recognition was 1,316 won. That is, the fingerprint interface had the highest economic value, followed by iris recognition and touch interface. The main contribution of this research is that we examined a method for economic valuation of the UX design and generated systematic and credible results.