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食用 纖維素 資源의 選拔에 관한 硏究 Ⅱ. 보리 種實의 分劃 β-glucan 含量
홍병희(Byung Hee Hong),유상동(Sang Dong Yoo) 한국육종학회 1993 한국육종학회지 Vol.25 No.4
These experiments were conducted to investigate correlation of soluble fractional β-glucan compositions to chemical ingredients in pearled kernels among barley varieties, which included 12 high β-glucan lines of introduced covered barleys based on “Studies on selection of dietary fiber resources 1” and 10 domestic recommended varieties. The β-glucan content of the high β-glucan lines was average 6.07% which was similar level of waxy type, the highest β-glucan content according to kernel types. In quantitative analysis of soluble fractional β-glucan content of barleys, it was showed that alkaline soluble fractions(1N NaOH+24% NaOH) were 70~80%. Chal-bori, which had the highest alkaline viscosity, showed the highest water soluble fractional β-glucan and also the highest water soluble pentosan content. Covered type varieties were higher than naked type varieties in ash content. Alkaline visocosities of barley flour were negatively correlated with amylose content and positively correlated with water soluble β-glucan and pentosans in pearled barley kernels.
보리 葯培養에 前處理와 植物 生長調節劑 處理가 캘러스 形成 및 植物體 分化에 미치는 效果
Byung Hee Hong(洪丙熹),Kyung Moon Kim(金庚汶) 한국육종학회 1993 한국육종학회지 Vol.25 No.2
This study was carried out to find an efficient method of barley anther culture and to investigate the induction of anther derived-callus in accordance with durations of pretreatment at 5℃, stages of pollen development and the combined treatment of NAA and BAP. In the callus induction at 5℃ in the respective durations of pretreatment, it was shown that Deuce produced better calli at non-pretreatment while Duke and Dissa showed higher calli induction at pretreatment of 20 days and 10 days, respectively. The high callus responses in Deuce and Dissa were found at the early and mid uninucleated stage. In the callus reponses of the pollen treated with combinations of NAA and BAP, Deuce and Dissa responded well to 3.0㎎/ℓ NAA alone. The callus induced from anther culture largely produced albino plants and rarely produced normal plants. However, large callus was beneficial for inducing plants.
RAPD 標識因子를 이용한 밀 稈長 近同質 系統의 遺傳變異 分析
Byung Hee Hong(洪丙憙),Chul Soo Park(朴哲秀) 한국육종학회 1996 한국육종학회지 Vol.28 No.4
RAPD markers were selected and used for grouping of 32 culm length near-isogenic lines of wheat(Triticum aestivum L.). Among a total of 147 bands observed by using 12 random primers, 113(77%) bands were polymorphic. Thirty-four bands were selected as reliable markers. The average marker difference was 8.6 among the 32 lines with the largest of 19 and smallest of 1. Genetic relationship based on the marker difference was identified using UPGMA computer program. The 32 lines could be grouped into two major clusters and then each of two groups subdivided into two sub-groups. This result corresponded to morphological and genetic characteristics of culm length near-isogenic lines of wheat. Seven specific DNA markers and five specific DNA markers were selected for discrimating the genetic background of lines between groups and within a group, respectively.
食用 纖維素 資源의 選拔에 관한 硏究 Ⅰ. 보리 品種에 있어서 種實 β-glucan의 變異
홍병희(Byung Hee Hong),유상동(Sang Dong Yoo) 한국육종학회 1993 한국육종학회지 Vol.25 No.4
This research was conducted to investigate the varietal differences of β-glucan content of barley kernel which was a potential resource of dietary fiber. The samples used in these experiments were 77 introduced and 15 domestic varieties including covered, malting barley, and naked and covered waxy types. In β-glucan quantification, Washington State Univ.(WSU) method showed higher value than Biocon method. The orders of β-glucan content were malting, covered, naked waxy, and covered waxy type according to the kernel type. The high β-glucan varieties of introduced covered barleys had the similar level of waxy barley in β-glucan content. Domestic covered waxy type, Chalbori and introduced covered varieties, such as Salmas, YEA1819/YEA195. 4, SL B52-74, CI 08911/CUM 50. Lignee27/3/Harbing/Avy/Aths, BELTS67-1608/8/3/DICKTOO//HIPLOLY, GI/72B58//WA1245/3/SO01/WA1356/4/LL/KMK, Plaisaut, and Precoce were 6.33% in average total β-glucan content in pearled kernels. Kernel hardness was average 11.21㎏. Hardness of malting barley, introduced covered barley, domestic covered barley, naked waxy barley and covered waxy barley average 9.49㎏, 11.08㎏, 11.19㎏, 12.35㎏, and 12.24㎏, respectively. In flour whiteness, Chalssalbori, naked waxy type, showed the highest value, and Chalbori, covered waxy type, had the lowest value. Alkaline viscosity of kernels was the highest in waxy type which showed the highest β-glucan content whereas the lowest in malting barley. The β-glucan content was highly correlated with alkaline viscosity of barley varieties tested except waxy type barley, such as Chalbori and Chalssalbori.
RAPD를 이용한 보리×밀 속간교잡종의 보리유전자 도입 확인
임용우(Yong Woo Rim),홍병희(Byung Hee Hong),남중현(Jung Hyun Nam),박문웅(Moon Woong Park),하용웅(Yong Woong Ha),박광근(Kwang Geun Park),신정섭(Jeong Sheop Shin) 한국육종학회 1995 한국육종학회지 Vol.27 No.4
Random amplified polymorphic DNA(RAPD) was employed as a genetic marker in order to verify the genetic introgression of barley(cv. Manker 16) to barley × wheat backcross(BC₂F₁) lines. In RAPD analysis of 12 random primers tested, four of the 14 progenies obtained from barley × wheat backcrosses expressed band unique only to barley using primer number 225 (5’-CGA CTC ACA G-3’), and all progenies except H6-2 and H6-3 expressed bands unique only to barley using primer number 274(5’-GTT CCC GAG T-3’). All progenies of the BC₂F₁ lines appeared to have at least one of barley polymorphic patterns through RAPD analysis. Somatic chromosome numbers of BC₂F₁ lines ranged between 46 to 49 and appeared to have 4 to 7 chromosomes of barley. Use of RAPD as a genetic marker for the detection of genetic introgression of barley in barley × wheat intergeneric hybrid derivatives was effective and useful.
Kil Woong Chung(鄭吉雄),Byung Hee Hong(洪丙憙),Rak Chun Seong(成樂春),Jung Il Lee(李正日) 한국육종학회 1992 한국육종학회지 Vol.24 No.1
This study was conducted to obtain basic information for breeding materials on the chemical compositions of soybean[Glycine max (L.) Merrill] seeds. Seed dry weight, protein content, oil content, fatty acid composition, soluble sugar content and starch content were analyzed to 53 collected summer type soybean varieties. Seed dry weights of summer type soybean varieties were ranged 10.5-25.6g and protein contents of those were ranged 33.6-45.0%. Oil contents of the varieties were ranged 12.1-18.0%, and linoleic and oleic acids of those were major components in the fatty acids. Sugar contents were ranged 6.1-10.0%, and starch contents ranged 3.1-5.6% in summer type soybean varieties. Significant correlation coefficients were found among seed dry weight and chemical compositions of summer type soybean varieties.
韓國 自生 茶나무의 RAPD-marker에 의한 類緣關係
Mi Joung Oh(吳美貞),Byung Hee Hong(洪丙熹) 한국육종학회 1995 한국육종학회지 Vol.27 No.2
Genetic relationship and variation in Korean native tea(Camellia sinensis L.) were analysed using RAPD-PCR markers. Total 19 primers were used and 116 bands of the amplified DNA bands were generated across all 35 collections. Among the obtained bands, 18 of them were monomorphic(15.5%) and the others appeared to be reliable polymorphic(84.5%) marker. Genetic distances(GD) based on the 116 RAPD bands were used to construct phylogenetic dendrogram based on analysis of band sharing data of amplified markers. GDs of them were ranged from 0.070 to 0.367, and the mean value was 0.155. Local collections from same areas of Beknyon-am and Pyagol showed relatively lower GDs(0.122, 0.102, respectively), which infer genetically less divergent within those areas. Local collections from Sunun-sa area showed higher genetic distance(0.222). In genetic relationship based on complete-linkage clustering, the tea collections were classified into three group, A group(A-1, A-2, A-3), B group(B-1, B-2) and C group. It assumes there is extremely lower genetic difference within group. In genetic evolutionary pattern based on Neighbor-joining clustering, the tea collections with similar variation were divided into A group(A-1, A-2), B group(B-1, B-2) and C group(C-1, C-2).
김형근(Hyeongkeun Kim),최재붕(Jaeboong Choi),홍병희(Byung Hee Hong),김영진(Youngjin Kim) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.5
Recently, graphene has been extensively studied as a material for making future electronic device. In this work we report a chemical vapor deposition (CVD) synthesis of 30-inch scale monolayer graphene and roll-based layer-by-layer transfer onto polyethylene terephthalate (PET) substrates. Transmission electron microscopy (TEM), UV/Vis/IR spectroscopy, 4-probe electrical measurements and Raman spectroscopy studies indicate that these graphenes have highly-quality crystalline structures with the controllable number of layers.
강준모(Junmo Kang),김형근(Hyeongkeun Kim),박영철(Young Chul Park),김주동(Joo Dong Kim),최성(Sung Choi),홍병희(Byung Hee Hong),김영진(Young-Jin Kim),최재붕(Jae-Boong Choi) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
We demonstrate the application of graphene coated heat pipe, showing high thermal transfer and corrosion resistant by water environment. The graphene coating layer was directly synthesized on both the inside and the outside of Cu pipe using chemical vapor deposition (CVD) method. The surface properties of Cu pipe exposed to water were investigated by optical and Raman spectroscopy. The heat transfer property of Cu pipe was tested by using hot water flows, showing improved heat transfer effect on the graphene coated heat pipe. This suggested that the graphene coated heat pipe would be very useful for the corrosion resistant coating and high thermal conductive material.
밀 F₁ 약배양에 의한 식물체 분화 및 분화식물체의 배수성
권순종(Soon Jong Kweon),박동수(Dong Soo Park),고종민(Jong Min Ko),현종내(Jong Nae Hyun),서득룡(Duck Yong Suh),서형수(Hyung Soo Suh),남중현(Jung Hyun Nam),홍병희(Byung Hee Hong),오윤진(Yun Jin Oh) 한국육종학회 1997 한국육종학회지 Vol.29 No.2
Five combinations of early maturity wheat F₁ were conducted to anther culture and 345 green plants were obtained. Callus induction rate was 4.1%, plant regeneration rate 46%, green plant rate 88%, respectively. Liquid medium was effective to induce callus of wheat anther. Chromosome analysis of 102 plants showed 5 diploids, 1 aneuploid and 96 haploids. For breeding with anther culture in wheat, chromosome doubling process will be necessary.