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Sae Jung Suh(徐世政),Young Am Chae(蔡永岩),Jai Wook Shim(沈載昱) 한국육종학회 1986 한국육종학회지 Vol.18 No.2
The genetic segregation and epistatic effects of blue aleurone genes(bl’s) in barley were examined. And also the linkage relationships among bl genes and between each of bl gene and chlorina (fc) on chromosome Ⅰ and hooded(K) gene on chromosome Ⅳ were estimated. The conclusions of the experiments were as follows. 1. The blue aleurone characters in barley were considered to be controlled by 5 pairs of dominant complementary genes. Therefore the white aleurone phenotypes were resulted that any one of these genes is recessive homozygous state. 2. The Korean domestic cultivars of barley, Doosan #8 and Kangbori, which shows white aleurone color, seemed to be possessed bl₂ and bl₃ gene respectively. However about 10% of the blue aleurone kernels were segregated in the F₂ seeds of cross between Kangbori× Blx, as in the case of Kangbori cultuar itself. It is thought to another factor or factors are responsible for the expression of the bl₃ gene at recessive homozygous state in Kangbori. 3. The bl₄ gene which expresses the red aleurone color at the recessive homozygous state considered to show different epistatic effect upon bl and bl₃ gene respectively. 4. There were sparse linkage relationship between bl₅ gene of BGM₁₂₂ and bl₂ gene of Nepal, and it is postulated that the bl₅ gene is located on the distal portion of the long arm of chromosome Ⅰ. 5. The gene bl₃ and bl₄ showed linkage relationships with the genetic marker gene K respectively, and the possible gene order on the chromosome Ⅳ appeared to be bl-bl₃-K-bl₄, on the basis of the estimated recombination values.
염해 및 한발에 대한 보리의 생화학적 반응 - 항산화효소 활성 및 아미노산 함량의 변화
김대욱,허화영,서세정,이영호,김시주,Kim, Dea-Wook,Heo, Hwa-Young,Suh, Sae-Jung,Lee, Yeong-Ho,Kim, Si-Ju 한국작물학회 2006 Korean journal of crop science Vol.51 No.suppl1
To differentiate barley responses to drought and salt stress, barley seedlings at the second leaf stage were treated with 218 mM NaCl and 29.5% PEG6000 iso-osmotic to 218 mM NaCl for 6 days. Shoot fresh weight and leaf relative water content of barley seedlings were more reduced by drought compared to salt stress. Hydrogen peroxide content increased under both stress conditions, but its accumulation was more severe at 6 days after salt stress. The activity of ascorbate peroxidase, glutathione reductase (GR) and catalase (CAT) was enhanced until 4 days after salt stress. On the other hand, the activity of GR and CAT increased gradually until 6 days after drought. Among the amino acids measured in this study, the accumulation of glycine, arginine and GABA (${\gamma}-aminobutyric$ acid) was lower under salt stress than drought. However, considerably larger amount of proline was accumulated by salt stress. It is concluded that the antioxidant enzymes activity and amino acid content of barley seed-lings were differently regulated in response to the isoosmotic condition of salt and drought stress. 본 연구는 삼투포텐셜이 동일한 NaCl과 PEG6000 용액을 사용하여 염해와 한발에 대한 보리의 생화학적 반응을 검토하였으며 시험결과를 요약하면 다음과 같다. 1. 보리의 지상부 생육 및 보리 잎의 상대수분함량은 염해보다 한발에 의해서 더욱 감소하였다. 2. 과산화수소의 발생은 염해처리 후 6일에 한발보다 27.5% 많았으며, 영해처리 후 4일에 나타난 APX, CAT 및 GR의 활성은 한발처 리보다 각각 12.6%, 27.9%, 23.3% 높았다. 한편, 보리의 경우 CAT의 활성은 한발보다 염해조건에서 더욱 신속하게 유도되는 것으로 나타났다. 3. 아미노산 함량의 변화는 염해 및 한발처리에 의해서 서로 다른 양상을 보였다. 특히 glycine, arginine 및 GABA의 함량은 한발처리에서 더욱 증가하였으나, proline의 함량은 염해처리에서 크게 증가하였다. 4. 본 연구를 통해서 보리의 항산화효소 활성 및 아미노산 함량이 염해와 한발에 의해서 상이하게 조절되는 것이 확인되었다. 이러한 결과들은 염해에 대한 보리의 특이적인 반응지표가 될 수 있을 것으로 생각되었다.
파종기 이동에 따른 콩의 Isoflavone 함량 변화
윤홍태,김욱한,이영호,서세정,김시주,Yun, Hong-Tae,Kim, Wook-Han,Lee, Yeong-Ho,Suh, Sae-Jung,Kim, Si-Ju 한국작물학회 2006 Korean journal of crop science Vol.51 No.suppl1
본실험은 조생종인 하대두형 및 중국수집종 콩과 중숙${\sim}$만숙종의 국내 육성 종과의 isoflavone 함량변이를 비교하며, 파종기 이동 및 콩의 생육단계별 생육기간에 따른 isoflavone함량의 차이를 분석하고자 수행하였으며, 결과를 요약하면 다음과 같다. 1. 전체 isoflavone함량은 파종기 이동에 관련 없이 국내 수집종이 하대두형 및 중국수집 종에 비하여 놓았으며, 하대 두형콩과 중국수집 종과 비슷한 함량 분포를 나타냈다. 2. 파종기이동에 따른 총 isoflavone 함량은 파종기를 늦게 할수록 하대두형, 중국수집종 및 국내육성종 모두에서 증가하는 경향 이었다. 3. 콩의 개화기${\sim}$성숙기의 기간 및 생육일수가 길어질수록 isoflavone 함량도 높아지는 경향을 나타냈으며, 통계적으로도 부합되었다. 4. 콩의 isoflavone 함량은 입중이 무거울수록 함량이 낮아 졌으며, 상관계수는 4월${\sim}$5월 파종구에서 각각 -0.57, -0.51 및 -0.38로 분석되었다. This study was conducted to compare the changes of isoflavone content grown at different planting dates and to determine a relationship between growing periods and isoflavone content, in soybean. A total fifty six soybean varieties, including summer type soybean, Chinese varieties and domestic soybean varieties, were used this experiment. Mean total isoflavone content of domestic soybean varieties was higher than summer type soybean varieties and Chinese varieties. And, the soybean isoflavone content was significantly increased in growth at late planting dates. Soybean isoflavone contents was increased with longer reproductive growth period. While, the relationship between seed weight and isoflavone content showed significantly negative correlation coefficient, -0.57 at Apr. 15, -0.51 at May 15, and -0.38 at Jun. 15, respectively planting dates.
LC-MS/MS를 이용한 농산물 중 식물생장조절제 Trinexapac-ethyl과 대사산물 Trinexapac의 동시분석법 개발
장진 ( Jin Jang ),김희정 ( Hee Jung Kim ),고아영 ( Ah Young Ko ),이은향 ( Eun Hyang Lee ),주윤지 ( Yun Ji Ju ),장문익 ( Moon Ik Chang ),이규식 ( Gyu Seek Rhee ),서세정 ( Sae Jung Suh ) 한국환경농학회 2015 한국환경농학회지 Vol.34 No.4
BACKGROUND: Trinexapac-ethyl is a plant growth regulator (PGR) that inhibits the biosynthesis of plant growth hormone (gibberellin). It is used for the prevention of lodging, increasing yields of cereals, and reducing mowing of turf. The experiment was conducted to establish a determination method for trinexapac-ethyl and its metabolites trinexapac in agricultural products using LC-MS/MS.METHODS AND RESULTS: Trinexapac-ethyl and trinexapac were extracted from agricultural products with methanol/distilled water and the extract was partitioned with dichloromethane and then detected by LC-MS/MS. Limit of detection(LOD) was 0.003 mg/kg and limit of quantification(LOQ) was 0.01 mg/kg, respectively. Matrix matched calibration curves were linear over the calibration ranges (0.01-1.0 mg/L) for all the analytes into blank extract with r2 > 0.997. For validation purposes, recovery studies were carried out at three different concentration levels (LOQ, 10LOQ, 50LOQ, n=5). Recoveries of trinexapacethyl and trinexapac were within the range of 73.6-106.9%,72.7-99.2%, respectively. The relative standard deviations (RSDs) were less than 9.0%. All values were consistent with the criteria ranges requested in the CODEX guideline(CAC/GL 40, 2003).CONCLUSION: The proposed analytical method was accurate, effective and sensitive for trinexapac-ethyl and trinexapac determination and it can be used to as an official method in Korea.
수원 511호와 일품쌀의 항산화성분 및 70% 에탄올 추출물의 항산화활성
우관식(Koan Sik Woo),정응기(Eung Gi Jeong),서세정(Sae Jung Suh),양창인(Chang Ihn Yang),정헌상(Heon Sang Jeong),김기종(Kee Jong Kim) 한국식품영양과학회 2008 한국식품영양과학회지 Vol.37 No.10
2006년 새롭게 육성된 계통명 수원 511호 품종에 대한 이용가능성을 살펴보고자 항산화성분과 항산화활성을 측정하였다. 총 폴리페놀 함량은 수원 511호에서 318.17 ㎍/g으로 나타나 일품쌀(222.16 ㎍/g)보다 높았으며, 총 플라보노이드 함량 또한 수원 511호에서 167.21 ㎍/g으로 나타나 일품쌀(100.89 ㎍/g)보다 높은 함량을 보였다. α- 및 γ-tocopherol의 함량은 수원 511호의 경우 0.14 및 1.17 ㎎/100 g을 나타낸 반면 일품은 각각 0.06 및 0.80 ㎎/100 g으로 수원 511호에서 높게 나타났으며, 총 tocopherol 함량 또한 수원 511호가 1.31 ㎎/100 g으로 일품(0.86 ㎎/100 g)에 비해 높았다. α-, γ- 및 δ-tocotrienol의 함량은 수원 511호의 경우 0.10, 0.43 및 0.02 ㎎/100 g을 나타냈으며, 일품은 각각 0.09, 0.43 및 0.03 ㎎/100 g으로 두 품종 간에 큰 차이가 없는 것으로 나타났다. 수원 511호 및 일품쌀의 γ-oryzanol 함량을 측정한 결과 각각 76.58 및 7.77 ㎍/g으로 수원 511호가 약 10배정도 높은 것으로 나타났다. 총 항산화력은 수원 511호와 일품쌀 70% 에탄올 추출물의 총 항산화력은 각각 16.00 및 9.73㎎ AA eq/g으로 나타났으며, 환원력은 5 ㎎/mL의 농도에서 수원 511호 및 일품쌀 모두 0.18을 나타내었고 20 ㎎/mL의 농도에서 각각 0.61 및 0.58을 나타내어 농도 의존적으로 증가하는 경향을 관찰할 수 있었으나 두 품종 간에 큰 차이가 없는 것으로 나타났다. 수원 511호의 DPPH radical, hydroxyl radical, superoxide radical 및 hydrogen peroxide 소거활성은 5 ㎎/mL의 농도에서 각각 42.00, 21.59, 23.27 및 17.13%로 나타났으며, 일품은 30.10, 22.37, 25.18 및 18.08%로 두 품종 간에 큰 차이가 없는 것으로 나타났다. 이상의 결과를 종합해 볼 때 새롭게 육성된 수원 511호 쌀은 일품쌀에 비해 항산화성분이 더 많이 함유되어 있는 것으로 나타났으며, 항산화활성 또한 약간 높은 활성을 가지는 것으로 나타났다. To evaluate the potential of a new breed, Suweon-511, antioxidant components and antioxidant activities of the 70% ethanol extracts of Suweon-511 (SWE) and Ilpum (IPE) were measured. Total polyphenol and flavonoid contents were 318.17 and 167.21 ㎍/g for SWE, which were higher than that of IPE (222.16 and 100.89 ㎍/g). Both α- and γ-tocopherol contents were higher in SWE as well. The total tocopherol contents of SWE (1.31 ㎎/100 g) was higher than that of IPE (0.86 ㎎/100 g). The α-, γ- and δ-tocotrienol contents of SWE (0.10, 0.43, and 0.02 ㎎/100 g) that of IPE (0.09, 0.43, and 0.03 ㎎/100 g) showed little difference. For γ-oryzanol, Suweon-511, which contained 76.58 ㎍/g, contained ten times as much as Ilpum (7.77 ㎍/g). The total antioxidant activity of SWE and IPE were 16.00 and 9.73 ㎎ AA eq/g, respectively. For reducing power, at 5 ㎎/mL, both extracts were 0.18, but at 20 ㎎/mL, SWE showed 0.61 and that of IPE was 0.58. The DPPH radical, hydroxyl radical, superoxide radical and hydrogen peroxide scavenging activity of SWE were 42.00, 21.59, 23.27, and 17.13% at 5 ㎎/mL, and for IPE, they were 30.10, 22.37, 25.18, and 18.08%, respectively. These data, as well, did not show big difference between the two breeds. As indicated in the data above, the newly-bred Suweon-511 had higher content of antioxidant components compared to Ilpum, but similar or a little higher antioxidant activity.