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Comparisons of Expression Level of Lentinula edodes β-Glucan Gene According to the Growth Conditions
Seung-Bin Im,Neul-i Ha,Seong-Woo Jin,Kyung-Je Kim,Young-Woo Koh,Hee-Kyung Jeong,Seung-Ju Kim,Kyong-Won Yun,Ki-Man Kim,Yu-Jin Choi,Da-Hye Song,Kyoung Sun Seo 한국식품영양과학회 2020 한국식품영양과학회 학술대회발표집 Vol.2020 No.10
Studies on Biological Effects of Gamma-ray in Sorghum bicolor M.
Seung Bin Im,Jaihyunk Ryu,Yu-Mi Lee,Soon-Jae Kwon,Dong Sub Kim,Jin-Baek Kim,Sang Hoon Kim,Hee-bong Lee,Si-Yong Kang 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
This study was conducted to determine the optimal dose of gamma-ray for mutation breeding in sorghum (Sorghum bicolor M.). Gamma-rays irradiated to dry seeds with various doses (0 to 1000 Gy) at Korea Atomic Energy Research Institute. Lethal dosage (LD50) was approximately 256 Gy. Significant decreases in growth characteristics (plant height, tiller number and fresh weight) were observed by dose of increased over 300 Gy. Reduction doses (RD50) was approximately 363 Gy in plant height. We also conducted comet assay to observe nucleus DNA damage due to gamma irradiation. In comet assay, a clear difference was identified over 100 Gy treatments. With increasing doses of gamma-ray in the range of 100 to 400 Gy, the rate of head DNA was decreased significantly from 93.52% to 67.57%. The most of the Sorghum cells were severely damaged in the integrity of DNA by gamma-ray. These data provide valuable information when the optimal dose should be chosen for purpose of mutation breeding program of Sorghum.
Seung R . Paik,Jeong Im Woo,Gyoung Mi Kim,Jin Mo Cho,Kyoung Hee Yu,Chung Soon Chang 생화학분자생물학회 1997 BMB Reports Vol.30 No.1
Earthworm extracts are known for anti-inflammatory, analgesic, antipyretic, and anticancer effects but can also influence blood circulation. It was previously shown that an earthworm, Lumbricus rubellus. contained a water-extractable anticoagulant which was a heat- and acid-stable molecule with hydrophilic property. In order to uncover the biochemical nature of this molecule, the anticoagulant was processed with various hydrolases such as trypsin, DNase. RNase. and lysozome. When the digested samples were analyzed with an in vitro coagulation test measuring activated partial thromboplastin time (APTT) and agarose gel electrophoresis, the anticoagulant proved to be a relatively homogeneous DNA fragment with relative molecular size around 72 base pairs. Interestingly, the activity was further stimulated with a trypsin digestion. RNA, on the other hand, did not prolong the APTT. It was also demonstrated that the DNA accelerated the antithrombin III (AT-III) inhibition of thrombin from IC_(50) of 0.34 to 0.16 unit determined with S-2238 as a substrate, whereas heparin, a popular anticoagulant, shifted the value to 0.05. Therefore, it is suggested that the DNA could be considered as an alternative antithrombotic agent to heparin, which would exhibits bleeding side effects.
( Seung-yong Lee ),( Narayan Chandra Paul ),( Won Park ),( Gyeong-dan Yu ),( Jin-cheon Park ),( Mi-nam Chung ),( Sang-sik Nam ),( Seon-kyeong Han ),( Hyeong-un Lee ),( San Goh ),( Im Been Lee ),( Jung 한국균학회 2019 韓國菌學會誌 Vol.47 No.4
A common post-harvest disease of sweetpotato tuber is root rot caused by Fusarium solani in Korea as well as the other countries. Storage root rot disease was monitored earlier on sweetpotato (Ipomoea batatas) in storehouses of different locations in Korea. In the present study, an isolate SPL16124 was choosen and collected from Sweetpotato Research Lab., Bioenergy Crop Research Institute, NICS, Muan, Korea, and confirmed the identification as Fusarium solani by conidial and molecular phylogenetic analysis (internal transcribed spacer ITS and translation elongation factor EF 1-α gene sequences). The isolate was cultured on potato dextrose agar, and conidiation was induced. The fungus was screened for Fusarium root rot on tuber of 14 different varieties. Among the tested variety, Yenjami, Singeonmi, Daeyumi, and Sinjami showed resistant to root rot disease. Additionally, the pathogen was tested for pathogenicity on stalks of these varieties. No symptom was observed on the stalk, and it was confirmed that the disease is tissue specific.
Effect of Whey Fertilizer Applications on Growth Characteristics of Angelica acutiloba Nakai
Seung Bin Im(임승빈),Seong Woo Jin(진성우),Kyung Je Kim(김경제),Young Woo Koh(고영우),Neuli Ha(하늘이),Hee Gyeong Jeong(정희경),Yu Jin Choi(최유진),Sang Cheon Lee(이상천),Hee Yeon Jin(진희연),Kyung Sun Seo(서경순) 한국약용작물학회 2018 한국약용작물학회 학술대회논문집 Vol.2018 No.2