국내 재배종 복분자의 Rubus종과의 유연관계

박명렬,유기석,정병엽,박필재,윤성중 한국육종학회 2007 한국육종학회 학술발표회 발표요지 Vol.38 No.1

Analysis of Agronomic Traits of Soybeans Adaptable to Northern Area of the Korean Peninsula

박명렬,서민정,윤홍태,Yong Hawn Ryu,문헌팔,김동순 한국육종학회 2019 Plant Breeding and Biotechnology Vol.7 No.4

We have conducted this study to select soybeans adaptable to North Korea using growing degree days (GDD) as aheuristic tool. For analyzing climatic conditions, we assumed that climatic conditions of Longjing, Donggang, and Yeoncheon aresimilar to the Eastern Coast Northern Zone, Suyangsan Northern Zone, and Suyangsan Southern Zone in North Korea, respectively. The predicted days to flowering of 100 soybeans grown at Longjing, Donggang, and Yeoncheon were in ranges from 7/17 to 7/30, from7/16 to 7/28, and from 7/30 to 8/10, respectively, while the last date of flowering for completely harvesting were predicted by July 12th,August 2nd, and August 11th, respectively. The predicted days to flowering using GDD were almost similar to the days investigated inthe three fields. These results showed that GDD is highly effective in predicting development rates of soybean, such as days to floweringand days to maturity. Although most of the tested soybeans were difficult to adapt to Longjing, we selected 12, 15, and 16 soybeanvarieties/lines based on the predicted days to flowering and last date of flowering for completely harvesting and yield of the soybeansgrown at Longjing, Donggang and Yeoncheon, respectively, for further analyzing effects of the regional characteristics on agriculturaltraits of the selected soybeans. The 100-seed weight and yield of the selected soybeans grown at Longjing was significantly lowcompared with those at the other locations. The results implied that the soybeans would be exposed to freezing temperature before R6stage and the reduced size would contribute to soybean yield loss. Taken together, we concluded that Suwon212, Iksan13 and‘Shinpaldalkong2’ which were stable in degree of lodging, 100-seed weight, and yield at Donggang and Yeoncheon could be adaptableto Suyangsan Northern Zone, and Suyangsan Southern Zone in North Korea.

Grain Quality of Transgenic Rice with Enhanced Phosphorous by Overexpression of Phosphate Transporter

박명렬,김기영,백소현,윤성중 한국국제농업개발학회 2009 韓國國際農業開發學會誌 Vol.21 No.2

This study was conducted to determine the effect of high phosphorus (P) on grain quality of transgenic rice with enhanced grain P contents. Two transgenic lines expressing the high-affinity phosphate transporter cDNA of tobacco (NtPT1) and non-transgenic control variety Donjin-byeo (control, CTR) were cultivated at the test field and seeds were harvested. The P contents of brown rice seed of transgenic lines increased by 16-43% over that of the CTR. The mean Mg/K ratio of grains was significantly higher in the transgenic lines than in the CTR. The increased P in the transgenic grains resulted in a significant decrease in pigmentation, but at the same time a substaintial increase in the palatability of grains. Also, enhanced P in the transgenic grains induced increase in the total protein and fatty acid contents, but did not affect the amylose content of brown grain. All the viscosity values except setback viscosity were lower in the transgenic lines than in the control variety. Overall, all the physical characteristics affecting the texture of grain except resilience did not vary between the transgenic lines and the CTR. These results indicate that the higher P in the transgenic grains influenced positively on quality of grains.

원자로 중성미자를 이용한 중성미자 질량계층 기초연구

박명렬,최준호 한국물리학회 2014 새물리 Vol.64 No.8

We report experimental possibilities for determining the neutrino mass hierarchy by using reactor neutrinos. A baseline that is about 58 km from the reactor(s) is most sensitive to the neutrino mass hierarchy when the position of the peak in the neutrino energy spectrum from inverse β-decay and a parameterized reactor neutrino flux are applied. By applying Fourier sine and cosine transformations to the event rate from neutrino oscillation probability, Pee(L/Enu), we could extract signals of the neutrino mass hierarchy in δ m^{2} space from the different frequency oscillations. 원자로 중성미자를 이용하여 중성미자 질량계층을 연구할 수 있는 실험적 가능성을 살펴보았다. 원자로 발생 반전자 중성미자 선속과 역베타 붕괴반응을 통해 검출된 반전자 중성미자 스펙트럼의 마루 (peak) 에너지를 적용하였을때, 약 58 km의 중성미자 비행거리가 중성미자 질량계층에 가장 민감하다는 것을 알 수 있었다. 이 비행거리 부근에서 질량계층에 따라 달라지는 중성미자 진동확률, Pee(L/E_nu}를 δm²에 대한 푸리에 사인 및 코사인 변환을 적용하면 δm² 공간에서 중성미자 질량계층 신호를 구분할 수 있음을 알았다.

인산수송자 유전자의 발현조절에 의해 인산흡수효율이 증진된 형질전환벼의 농업형질 및 분자 유전학적 특성

박명렬,백소현,김영진,윤성중 한국육종학회 2007 한국육종학회 학술발표회 발표요지 Vol.38 No.1

유전체 분석을 통한 콩 꼬투리 성숙관련 QTL영역의 유전적 특성분석

박명렬,서민정,이종기,윤홍태 한국작물학회 2017 한국작물학회 학술발표대회 논문집 Vol.2017 No.-

저온 반응 기작 유전체 연구를 통한 내냉성 유전자 선발

박명렬,윤길영,윤성중 한국육종학회 2008 한국육종학회 학술발표회 발표요지 Vol.40 No.1

내냉성이 증진된 벼에서의 nuclear transcription factor Y (OsNF Y) 유전자의 발현 특성

박명렬,김상훈,윤성증 한국육종학회 2010 한국육종학회 학술발표회 발표요지 Vol.42 No.1

액체 신틸레이터를 이용한 초신성 확산 배경 중성미자 관측

박명렬 한국물리학회 2019 새물리 Vol.69 No.7

The core collapse supernova (CCSN) releases most of the explosive energy through neutrinos. Therefore, the detection of the CCSN neutrino is essential to understand the temporal evolution of the CCSN. However, since it is difficult to detect neutrinos originating from a CCSN, the possibility of detecting diffuse supernovae neutrino background (DSNB) emitted from the supernovae in the Universe after the Big Bang is discussed. The results show that 10−3 events per year DSNB-induced neutrino events are expected using a 20 t gadolinium-loaded liquid neutrino detector currently used. However, in case of the CCSN being near at hand, the neutrino detector can detect about 1,200 events during the first 10 seconds. This means that the neutrino detector can operate as an alarm system for the CCSN in close proximity to the Sun. 중심핵 붕괴 초신성 (core collapse supernova, CCSN) 은 중성미자를 통해 대부분의 폭발 에너지를방출하기 때문에 CCSN으로 부터 방출되는 중성미자 검출은 CCSN의 시간적 진화를 이해하는 데 필수적이다. 그러나 하나의 CCSN에서 유래한 중성미자를 검출하는 것은 매우 어렵기 때문에 우주 형성 후지금까지 발생한 CCSN에서 방출되어 우주공간에 확산된 초신성 중성미자 (diffuse supernovae neutrino background, DSNB)들을 발견 할 가능성에 대해 살펴보았다. 이 연구를 통헤 20톤 규모의 중소형 중성미자 검출기로는 DSNB를 일 년에 10−3 개 정도를 검출하기 때문에 효과적이지 않았다. 하지만 지구근처에서 발생한 CCSN에 대해서는 최초 10초 동안 약 1,200 여개의 중성미자 신호를 검출할 수 있기때문에 초신성 폭발 경보 시스템으로 작동 할 수 있다는 것을 보았다.

저산소 조건하에서 맥류 유묘의 근생장 및 혐기발효 효소의 반응

박명렬,임정현,유남희,권인숙,김정곤,최경구,윤성중 韓國作物學會 2005 Korean journal of crop science Vol.50 No.6

본 연구에서는 맥류 습해의 원인인 과습에 의한 근권의 산소부족이 맥류 뿌리의 생장 및 혐기 발효대사 효소(alcohol dehydrogenase, ADH; lactate dehydrogenase, LDH)에 미치는 영향을 조사하였다. 양액재배를 이용하여 1.5엽기 맥류 유묘에 용존산소 1.5-2 ppm 정도의 혐기처리를 1, 3, 5, 7일간 실시하였다. 혐기조건에서 뿌리의 생장은 모든 맥종에서 감소하였으며, 감소정도는 내습성이 낮은 보리가 내습성이 높은 밀과 호밀보다 낮았다. 정상조건에서 ADH 활성은 보리가 LDH 활성은 호밀이 가장 높았으나 두 효소 모두 맥종 간의 차이는 크지 않았다. 혐기처리에 의해 ADH와 LDH 활성은 모든 맥종에서 공통적으로 증가하였으며 증가 정도는 호밀과 밀에서 가장 높았고 보리에서 가장 낮았다. 혐기조건에서 이들 효소의 활성증가는 모든 맥종에서 유사하게 항시발현 동위효소의 증가 및 새로운 동위효소의 발현유도에 의해 나타났다. 혐기조건에서 ADH와 LDH 활성 증가 정도는 맥종의 재해저항성과 정의 상관관계가 인정되었다. 이러한 결과는 맥류의 내습성에 혐기 발효계 효소가 관여하고 있음을 의미하는 것으로 판단된다. Wet-injury often occurs in upland cereals growing in the paddy field due to oxygen deficiency in the rhizosphere caused by excessive water in the soil. Under hypoxia, energy metabolism is diminished causing non-reversible damage to root cells. This study was conducted to investigate effects of hypoxia on root growth and enzymes involved in the fermentative energy metabolism in upland cereals including barley, wheat, rye and triticale. Young seedlings were subject to hypoxia for up to 7 days. Root fresh weight and dry weight were decreased significantly by hypoxia for 5 to 7 days in all cereal seedlings. Root growth retardation under hypoxia was lowest in barley. Hypoxia-induced increases in activity and isozyme expression of alcohol dehydrogenase (ADH) and lactate dehydrogenase (LDH) were commonly observed in roots of all cereal seedlings. The inherent ADH activity levels were higher in barley but the hypoxia-induced increases in ADH activities were lowest in barley than other cereals. The inherent LDH activity levels were lower in barley and the hypoxia-induced increases in LDH activities were lower in barley than other cereals. The results suggest the importance of the rapid enhancement of fermentative enzyme systems for increased tolerance to hypoxia.