Genetic and Phenotypic Characterization of Rice Backcrossed Inbred Sister Lines of Saltol in Temperate Saline Reclaimed Area

( Jae-hyuk Han ),( Na-hyun Shin ),( Je-hoon Moon ),( Changhwan Yi ),( Soo-cheul Yoo ),( Joong Hyoun Chin ) 한국육종학회 2020 Plant Breeding and Biotechnology Vol.8 No.1

Saltol is one of the most well-known quantitative loci (QTLs) for salinity tolerance in rice. It has been used to develop highly tolerant rice varieties in saline and coastal areas in Southeast Asia, South Asia, and Africa. However, the functional activity of Saltol is not well known, and the molecular marker application of readily developed linked markers in Saltol has not always been successful in the rice breeding programs for salinity tolerance improvement. Interestingly, two BC₂F₉ sister backcrossed inbred lines (BILs), which have been developed by marker-assisted backcrossing utilized the linked markers of Saltol to improve the salinity tolerance of MS11 (a temperate japonica growing in tropical condition). The BILs showed very different phenotypic and stress tolerance, although both contained the Saltol QTL. The genomic similarity of the two BILs was 73%, and we have identified the genomic sites of different genic constitutions between the lines utilizing background genotyping. The stress response of the two BILs showed difference in survival rate, grain yield under highly saline field condition, and SPAD, SES in hydroponic conditions. MS11-SaltolA showed salinity tolerance through Na⁺/K⁺ homeostasis with relatively high K⁺ ion uptake and low Na⁺ ion uptake in the seedling stage. Further genomic analyses with whole genome resequencing is ongoing to study on gene interactions. The developed highly tolerant MS11-SaltolA can be used as an improved donor in rice molecular breeding for high salinity tolerance.

Chitosan/oleamide Nanofluid for Enhancing Gas Utilization Efficiency in C1-gas Bioconversion

Eungsu KANG,Hyunsuk CHOI,Ji Yeong LEE,Min-sik KIM,Jeong Geol NA,Yoo Seong CHOI 한국생물공학회 2021 한국생물공학회 학술대회 Vol.2021 No.10

Microbial biotransformation using C1-gases (CH₄, CO) is a notable technique for sustainable, carbon-neutral chemical and fuel production. However, the low mass transfer coefficient (KLa) of C1-gases in biological processes has hampered the efficient production of value-added materials, despite efficient, nonnative strains having been recently developed. Here, we constructed a nanofluid material mainly composed of chitosan and oleamide (CS/OA), which was stably suspended with a particle size of 120.7 ± 39.0 ㎚ in aqueous culture media below pH 7.5. The kLa value was enhanced more than 1.5-fold with a reduction of surface tension even in the 0.0001 % (w/v) CS/OA nanofluid. In addition, when the nanofluid was applied into media for seed-cultivation of three C1-gas utilizing strains such as Methylomonas sp. DH-1, M. trichosporium OB3b, and Thermococcus onnurineus NA1 156T, the CS/OA nanoparticles attached to the cell surface, leading to a morphological change in the cell surface at extended lag-phase, and enhanced the specific cell growth rates (μmax), gas utilization efficiency in log-phase. Remarkably, the adapted strains from the seed culture using the CS/OA nanofluid media also had enhanced μmax in a subsequent subculture and the main culture using conventional culture media, resulting in higher C1 gas consumption, cell growth, and metabolite production such as formate and succinate. These results showed that the CS/OA nanofluid could be an effective medium component to enhance the gas utilization efficiency in C1-gas microbial bioconversion.Microbial biotransformation using C1-gases (CH₄, CO) is a notable technique for sustainable, carbon-neutral chemical and fuel production. However, the low mass transfer coefficient (KLa) of C1-gases in biological processes has hampered the efficient production of value-added materials, despite efficient, nonnative strains having been recently developed. Here, we constructed a nanofluid material mainly composed of chitosan and oleamide (CS/OA), which was stably suspended with a particle size of 120.7 ± 39.0 ㎚ in aqueous culture media below pH 7.5. The kLa value was enhanced more than 1.5-fold with a reduction of surface tension even in the 0.0001 % (w/v) CS/OA nanofluid. In addition, when the nanofluid was applied into media for seed-cultivation of three C1-gas utilizing strains such as Methylomonas sp. DH-1, M. trichosporium OB3b, and Thermococcus onnurineus NA1 156T, the CS/OA nanoparticles attached to the cell surface, leading to a morphological change in the cell surface at extended lag-phase, and enhanced the specific cell growth rates (μmax), gas utilization efficiency in log-phase. Remarkably, the adapted strains from the seed culture using the CS/OA nanofluid media also had enhanced μmax in a subsequent subculture and the main culture using conventional culture media, resulting in higher C1 gas consumption, cell growth, and metabolite production such as formate and succinate. These results showed that the CS/OA nanofluid could be an effective medium component to enhance the gas utilization efficiency in C1-gas microbial bioconversion.

자생 및 재배 큰비쑥의 이화학적 특성 비교

강보라(Bo Ra Kang),김은희(Eun Hee Kim),김연경(Yeon Kyoung Kim),김아현(Ah Hhyun Kim),오규연(Gyu Yeon Oh),박유민(Yoo Min Park),조아현(Ah Hyeon Jo),나환식(Hwan Sik Na),신미영(Mi Yeong Shin),안양준(Yang Joon An),조정용(Jeong Yong Cho),이소 한국식품저장유통학회 2024 한국식품저장유통학회지 Vol.31 No.2

방광암 환자에서 염색체 이상이 예후에 미치는 영향에 대한 세포유전학적 연구

나용길,임재성,윤율로,설종구 충남대학교 의학연구소 2001 충남의대잡지 Vol.28 No.2

Bladder cancer is the most common type of urinary cancer in Korea. Usually it has an unpredictable natural history with respect to tumor invasion and recurrence. The cytogenetic results and genetic alterations of bladder cancer are thought to be closely related to cancer promotion and progression. To predict the possible relationship among them, we performed the cytogenetic analysis in the bladder cancer patients. The specimens of the 32 patients who underwent operations for the bladder cancer were obtained and cultured. Of them 15 cases were cytogenetically abnormal. There were wide variety of structural and numerical chromosomal aberrations. The most frequently affected chromosomes were 4, 8, 9 and 19 as determined by karyotyping. In our study, as in other studies the more the genes were hyperdiploidy and the more the genetic aberrations were complex, and the cancer was more invasive and the cancer grade was higher. There was frequent loss on chromosome 4, 9, 19 and the appearance of marker chromosomes. Although most amplifications and deletions have been previously described in the literature, our study showed some intriguing and uncommon regions, different from those found in past studies.

여대생의 비타민 A 영양 상태

나유경,김영남 동아시아식생활학회 1997 동아시아식생활학회지 Vol.7 No.4

The purpose of this study was to diagnose nutritional status of vitamin A in female university students. Total of 59 female students in Korea National University of Education, Home Economics Education department were recruited for this study. Retinol and 4 major carotenoids in serum(β-carotene, α-carotene, lycopene and lutein) were analyzed by HPLC. The isocratic separation was performed in a μ Bondapak™ C_(48), stainless steel column with a solvent system of acetonitrile : methanol= 85 : 15. The results of analysis were as follows: The average retinol concentration of 59 female students was 25.9㎍/100ml. According to biochemical criteria for the assessment of vitamin A status, 18 of them belong to well-nourished and 6 students belong to adequate status. On the other hand, 8 students, 3 freshmen and 5 sophomore, were in critical vitamin A status. Retinol concentrations of junior and senior students were higher than those of freshmen and sophomore(P<0.001). The average concentrations of serum β-carotene, lycopene, and lutein were 1.9, 5.4, and 41.4 ㎍/100ml, respectively. Serum β-carotene concentration of senior was significant, higher than those of freshman, sophomore and junior (p<0.001). Lycopene concentration of freshman was significant. lower than those of the other grades and that of senior was sig, higher than those of the other grades(p<0.05). Lutein concentrations of junior and senior were significant, higher than those of freshman and sophomore(p<0.001). The serum α-carotene concentrations of the students were too low to analyze.

펩타이드-Intergrase 융합 단백질의 재조합 활성

이나영,유승구 연세대학교 산업기술연구소 1996 논문집 Vol.28 No.2

Pepetide-Integrase fusion protein containing 17 additional amino acids at the amino terminal of bacteriophage Lambda Integrase was used for in vitro recombination assay and was found to have full recombination activity just as wild type Integrase. This result suggests the possibility that Integrase recombination system can be used to develop a novel peptide library system in which random peptides are displayed by DNA bound Integrase.

수도권 일부 프랑스 레스토랑의 운영 실태 조사

고유정,이희정,주나미 숙명여자대학교 건강·생활과학연구소 2009 生活科學硏究誌 Vol.- No.26

This study is to find the revitalizing method from a survey of overall operation and characteristics of French restaurant in Seoul and Kyeonggido. Sixty-men and women of 20s took part from appointed 60 restaurants in Seoul and Kyeonggido. The statistical analysis conducts by SPSSWIN 12.0 program and the significance level is p<.05, p<.Ol, p<.OO1. The result of operation status of French restaurant is as below. Form of start-up company is popular and the period ofoperation is within 2-5 years. Mostly, restaurant is operated personally. Most of restaurants are located in residential street and apartment complex. 50-100 are most popular in weekdays and weekend customers are more than 100 people in average. So it shows meaningful differences. Most of restaurants carry on business more than 30 days without holidays and open at noon and evening in a day. Monthly rent is popular for form of possession and owners give a weight of passion and interest for applicant when hiring employees and regard management expenses as most important labor cost. Many restaurant get food staff from appointed supplier by competition. Purchase ratio of food staff compared with sales is 25%-30% mostly. 41.7% of people said the future prospect of restaurant is just ''Normal''. Most important thing of menu composition is structure and composition, particularly representative menu and gustatory quality respectively. The important thing is "Taste", sanitation, facilities, menu development, education of employee, price and etc respectively for operation of French restaurant. Sales promotions to attract more customers and relationship with around store are analyzed as less important things. The biggest difficulty is the speedy rising of prime cost for operation of frenches and restaurant, manpower shortage, decreasing customer in this sequence. The difficult for increase offoreign food service and customer complain, decrease of customers is not a big problem in operation of restaurant. This study shows differences from other studies by grasping characteristics of restaurant unlike consideration of simple French dishes and also it is incalculable value to know the overall particulars, importance and difficulties by detailed survey.

실내의 색채 환경 계획에 관한 연구 : 설계실의 색채 이미지를 중심으로 focused on the Color Image of Design Studio

鄭裕那 상명대학교 논문집 1991 상명대학교논문집 Vol.28 No.-

We recognize color before anything else and Color has a strong influence on the consciousuess of the human. Besides, it gives richness to our daily lives as a form of culture. Therefore, the purpose of this study is to provide design criteria focused on color as interior design methodology. The main subject is composed of three parts -Chap 2=Meaning and Effects of Color -Chap 3=Color Planning Process in Interior Space -Chap 4=Survey about Existing Color Condition and Analysis of Users' Color Image Munsell color system is used to find existing Color Condition and Semantic Differential Method(SD Method) to catch Color Image that users feel and desire. Design studio is selected as a case for this study. Because it is a place for creative work and students spend the most parts of day to study and work. The results of study are as follows: The Color of design studio is composed of Y-hues, high-values and low-chromas. Equipments-Drawing tables, chairs, lockers, movable partitions etc. -have an important effect in color condition. The strong color images that students feel now are common, plain old-fashioned. simple, enervated and cool. But the strong color images that they desire earnestly are intimate, pleasant, vivid and fresh. That is, they want more harmonious color environment than monotonous due high-values and low-chromas. It is thought that R-hues as a vitality-giving-element and proper contrast in value. chrome and hue must be introduced in color planning for Interior Space.

D-Amphetamine이 니코틴성 흥분작용에 의한 카테콜아민 분비작용에 미치는 영향

임건한,서유석,민선영,임지연,김용직,나광문,임동윤 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.1

본 연구의 목적은 d-arphetamine이 흰쥐의 적출부신 관류모델에서 니코틴 수용체 흥분에 의한 카테콜아민(CA) 유리작용에 미치는 영향을 검색하여 그 작용기전을 규명하고자 하였다. D-amphetamine은 흰쥐 부신정맥내로 60분간 관류시 d-amphetamine자체는 약한 CA 분비작용을 나타내었으나, d-amphetamine (30 μM)을 비롯한 강력한 neuronal nicotine 수용체 작용제인 cytisine (50 μM) 및 epibatidine (30 μM)에 의한 CA 유리작용을 처음 4-10분 동안만 유의하게 증강시켰다. 또한, d-amphetamine (30 μM)은 60분간 부신정맥 내로 관류한 상태에서 dihydropyridine L-형 칼슘통로 개방약물인 Bay-K-8644 (10 μM)과 세포질내 칼슘저장고에서 Ca^(2+) ATPase 억제제인 cyclopiazonic acid (10 μM)의 CA 유리작용을 처음 4분간만 유의하게 증강시켰다. 그러나, 고농도의 d-amphetamine (500 μM)은 상기한 모든 분비촉진제의 CA분비작용을 오히려 억제하였다. 이와 같은 연구결과로 보면, 흰쥐 관류 부신수질에서 d-amphetamine은 낮은 농도에서는 콜린성 니코틴 수용체 흥분에 의한 카테콜아민 분비반응을 증강시키지만, 고농도에서는 오히려 억제적으로 작용함을 시사한다. 따라서, d-amphetamine은 용량에 따라서 흰쥐 적출 관류부신수질의 니코틴 수용체의 작용제 및 길항제로 이중 작용(dual action)을 나타내는 것으로 생각된다. 이러한 d-amphetamine의 작용은 흰쥐 부신수질 크롬친화세포의 dihydropyridine계 L-형 칼슘통로의 활성화 및 세포 내 칼슘저장고로부터 칼슘유리작용과 관련성이 있는 것으로 사료된다. The purpose of the present study was to examine the effect of d-amphetamine on CA release evoked by nocotinic receptor stimulation from the isolated perfused model of the rat adrenal gland, and to establish its mechanism of action. D-amphetamine(30 μM), when perfused into an adrenal vein of the rat adrenal gland for 60 min, enhanced the CA secretory responses evoked by ACh (5.32 mM), nicotine (30 μM), cytisine (50 μM, a selective neuronal nicotinic Nn-receptor agonist) and epibatidine (30 nM, a selective neuronal nicotinic Nn receptor agonist) only for the first period (4~10 min), although it alone has weak effect on CA secretion. Moreover, d-amphetamine (30 μM) in to an adrenal vein for 60 min also augmented the CA release evoked by BAY-K-8644, an activator of the dihydropyridine L-type Ca^(2+) channels, and cyclopiazonic acid, an inhibitor of cytoplasmic Ca^(2+) ATPase only for the first peroid (4 min). However, in the presence rather inhibited the CA secretory responses evoked by the above all of secretagogues. Taken together, these experimental results suggest that d-amphetamine at a low concentration enhances the CA secretion from the rat adrenal medulla evoked by stimulation of cholinergic nicotininc receptors, but at a high concentration it rather inhibits them. It semms that d-amphetamine has dual action acting as both agonist and antagonist at nicotinic receptors of the isolated perfused rat adrenal medulla, which are might be dependent on the concentration. It is also thought that these actions of d-amphetamine are probably relevant to the activation of the dihydropyridine L-type Ca^(2+) channels located on the rat adrenomedullary chromaffin cell membrane and release of Ca^(2+) from the cytoplasmic store.

그레이브스병에서 방사성 요오드 치료에 따른 갑상선 자극 호르몬 수용체 결합억제 면역글로불린(Thyrotropin Binding Inhibitory Immunoglobulin, TBII)의 변화

조영석,권기현,이준철,나소영,이효진,홍우정,이유선,김군순,송민호,김영건,노흥규 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

Prediction of thrapeutic response to radioiodine in Graves' disease is poorly understood. Although thyrotropin binding inhibitor immunoglobulin(TBII) level is a strong index for relapse after antithyroid drug medication, conflicting results are reported regarding its prognostic significance in Graves' disease treated with RAI. This study is dengned to evaluate possible relationship between post-treatment hypothyroidism and TBII in Graves' disease treated with RAI. Fourty two patient with Graves' disease after radioiodine treatment were studied retrospectively. The subject were divided into hypothyroid group and euthyroid or hyperthyroid group. We evaluated the association of hypothyroidism and TBII with radioiodine treatment dose. The mean age of hypothyroid group was 48±11 years and euthyroid or hyperthyroid group was 47±12 years. There was no difference in two groups. And there was no significant difference in post- treatment TBII between two groups(49.9±28.5%, 29.9±14.3%, p-value >0.05). The treatment-dose had no influence on post-treatment thyroid state. Euthyroid or hyperthyroid group was done with 13.6±6.9mCi and hypothyroid group was 17.0±10.4mCi(p-value > 0.05). TBII had no prognostic significance on long-term hypothyrodism in Graves' disease treated with radioiodine. And, treatment-dose had no influence on post-treatment thyroid state.