Journal of Life Science最新文献_第10页

Eleocharis kuroguwai Ohwi ameliorates LPS-mediated inflammation by suppressing MAPKs signaling = LPS로 유도된 염증 상태 내에서 MAPKs 세포신호 전달체계를 저해하는 올방개의 항염증 효과 Eleocharis kuroguwai Ohwi ameliorates LPS-mediated inflammation by suppressing MAPKs signaling =在LPS诱导的炎症状态下，阻碍MAPKs细胞信号传达系统的all - bang - gae抗炎症效果

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.5.476

Kanghyun Kim, E. Y. Bae, Hyun Goo Lim, Mi Heui Kim, Tae-Seok Oh, Seung Woong Lee

引用次数: 2

Recent Research Progress in the Microbial Production of Aromatic Compounds Derived from L-Tryptophan 微生物生产l -色氨酸衍生芳香族化合物的研究进展

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.10.919

Ji-yeong Lee, Jin-ho Lee

{"title":"Recent Research Progress in the Microbial Production of Aromatic Compounds Derived from L-Tryptophan","authors":"Ji-yeong Lee, Jin-ho Lee","doi":"10.5352/JLS.2020.30.10.919","DOIUrl":"https://doi.org/10.5352/JLS.2020.30.10.919","url":null,"abstract":"Aromatic compounds are widely used in the chemical, food, polymer, cosmetic, and pharmaceutical industries and are produced by mainly chemical synthesis using benzene, toluene, and xylene or by plant extraction methods. Due to many rising threats, including the depletion of fossil fuels, global warming, the strengthening of international environmental regulations, and the excessive harvesting of plant resources, the microbial production of aromatic compounds using renewable biomass is regarded as a promising alternative. By integrating metabolic engineering with synthetic and systems biology, artificial biosynthetic pathways have been reconstituted from L-tryptophan biosynthetic pathway in relevant microorganisms, such as Escherichia coli and Corynebacterium glutamicum, enabling the production of a variety of value-added aromatic compounds, such as 5-hydroxytryptophan, serotonin, melatonin, 7-chloro-L-tryptophan, 7-bromo-L-tryptophan, indigo, indirubin, indole-3-acetic acid, violacein, and dexoyviolacein. In this review, we summarize the characteristics, usage, and biosynthetic pathways of these aromatic compounds and highlight the latest metabolic engineering strategies for the microbial production of aromatic compounds and suitable solution strategies to overcome problems in increasing production titers. It is expected that strain development based on systems metabolic engineering and the optimization of media and bioprocesses using renewable biomass will enable the development of commercially viable technologies for the microbial production of many aromatic compounds.","PeriodicalId":16322,"journal":{"name":"Journal of Life Science","volume":"30 1","pages":"919-929"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81769010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

내건성 및 BPH 내성 계통의 육성을 위한 농업형질 고정여부 조사 为培育耐干性和BPH耐药性，调查农业性状是否固定

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.9.798

이소영, 김은경, 박재령, 김경민

引用次数: 0

The Anti-obesity Effect of Aureobasidium pullulans SM-2001 Extract (Polycan ® ) on 3T3-L1 Preadipocytes and Adipocytes 普鲁兰毛霉SM-2001提取物(多聚糖®)对3T3-L1前脂肪细胞和脂肪细胞的抗肥胖作用

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.10.835

Young-S. Kim, J. Lim, Bon-Hwa Ku, S. Moon, Hyung-rae Cho, S. Lee, J. Kwon

引用次数: 0

The Protective Effects of an Ethyl Acetate Fraction of Raphiolepsis indica Against Oxidative Stress in HaCaT Keratinocytes Raphiolepsis乙酸乙酯部分对HaCaT角化细胞氧化应激的保护作用

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.8.688

E. Yang, Hye-Ran Kim, Kyung-Soo Chang, Changlim Hyun

引用次数: 0

A Comparison Between the Agricultural Traits of GM and Non-GM Rice in Drought Stress and Non-stress Conditions 干旱胁迫与非干旱胁迫条件下转基因与非转基因水稻农艺性状的比较

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.5.411

Nafula Racheal, Jae-Ryoung Park, Dong-Won Jeon, Kyung-Min Kim

{"title":"A Comparison Between the Agricultural Traits of GM and Non-GM Rice in Drought Stress and Non-stress Conditions","authors":"Nafula Racheal, Jae-Ryoung Park, Dong-Won Jeon, Kyung-Min Kim","doi":"10.5352/JLS.2020.30.5.411","DOIUrl":"https://doi.org/10.5352/JLS.2020.30.5.411","url":null,"abstract":"The development of GM crops has gained significant economic importance, and the number of countries cultivating commercial GM crops has continuously increased since the 1960s. Globally, the area given to cultivating GM soybean, maize, cotton, and canola alone had reached 114 million hectares by 2007. Although the economic importance of cultivating and commercializing GM crops has increased, there is still a need to assess their agricultural traits in comparison to non-GM produce. This study evaluated the agricultural traits of GM rice containing the drought-tolerant gene CaMsrB2 and standard rice to investigate any unintended effects of genetic engineering. The GM and non-GM rice were compared in terms of various agricultural traits in a drought greenhouse and an irrigated paddy field. There was no statistical difference in the field-grown crops, but there was a statistically significant difference in both tiller number and yield in the greenhouse. These results therefore suggest that GM rice lines containing the CaMsrB2 gene are superior in performance to non-GM rice in drought stress conditions and could be grown in drought-prone areas where drought intolerant rice may not be able to grow.","PeriodicalId":16322,"journal":{"name":"Journal of Life Science","volume":"178 1","pages":"411-419"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83885413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Cis-acting Replication Element Variation of the Foot-and-mouth Disease Virus is Associated with the Determination of Host Susceptibility 口蹄疫病毒顺式复制元件变异与宿主易感性测定相关

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.11.947

H. Kang, Mi So Seong, B. Ku, J. Cheong

{"title":"Cis-acting Replication Element Variation of the Foot-and-mouth Disease Virus is Associated with the Determination of Host Susceptibility","authors":"H. Kang, Mi So Seong, B. Ku, J. Cheong","doi":"10.5352/JLS.2020.30.11.947","DOIUrl":"https://doi.org/10.5352/JLS.2020.30.11.947","url":null,"abstract":"The foot-and-mouth disease virus (FMDV), a member of the Aphthovirus genus in the Picornaviridae family, affects wild and domesticated ruminants and pigs. During replication of the FMDV RNA (ribonucleic acid) genome, FMDV-encoding RNA polymerase 3D acts in a highly location-specific manner. This suggests that specific RNA structures recognized by 3D polymerase within non-coding regions of the FMDV genome assist with binding during replication. One such region is the cis-acting replication element (CRE), which functions as a template for RNA replication. The FMDV CRE adopts a stem-loop conformation with an extended duplex stem, supporting a novel 15-17 nucleotide loop that derives stability from base-stacking interactions, with the exact RNA nucleotide sequence of the CRE producing different RNA secondary structures. Here, we show that CRE sequences of FMDVs isolated in Korea from 2010 to 2017 exhibit A and O genotypes. Interestingly, variations in the RNA secondary structure of the Korean FMDVs are consistent with the phylogenetic relationships between these viruses and reveal the specificity of FMDV infections for particular host species. Therefore, we conclude that each genetic clade of Korean FMDV is characterized by a unique functional CRE and that the evolutionary success of new genetic lineages may be associated with the invention of a novel CRE motif. Therefore, we propose that the specific RNA structure of a CRE is an additional criterion for FMDV classification dependent on the host species. These findings will help correctly analyze CRE sequences and indicate the specificity of host species for future FMDV epidemics.","PeriodicalId":16322,"journal":{"name":"Journal of Life Science","volume":"37 1","pages":"947-955"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85259118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

QTL Analysis of Rice Heading-related Genes Using Cheongcheong/Nagdong Doubled Haploid Genetic Map 利用清清/陇东双单倍体遗传图谱对水稻抽穗相关基因进行QTL分析

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.10.844

Yoon-Hee Jang, Jae-Ryoung Park, Kyung-Min Kim

{"title":"QTL Analysis of Rice Heading-related Genes Using Cheongcheong/Nagdong Doubled Haploid Genetic Map","authors":"Yoon-Hee Jang, Jae-Ryoung Park, Kyung-Min Kim","doi":"10.5352/JLS.2020.30.10.844","DOIUrl":"https://doi.org/10.5352/JLS.2020.30.10.844","url":null,"abstract":"Disaster-related extreme weather is rapidly increasing due to climate change. In Korea, typhoons accompanied by rainfall usually approach in August and September, causing great damage. The purpose of this study is to find a gene that regulates the heading date of rice in order to avoid loss of harvest from climate change and typhoons. Cheongcheong/Nagdong doubled haploid (CNDH) was used as the plant material to investigate the location of heading-related genes using QTL and sequence analysis by cloning the gene. In the distribution chart, the heading dates, culm lengths, panicle lengths, numbers of panicles, and 1,000-grain weights all have normal distributions. QTL analysis found 13 contigs on chromosome 8. One QTL, named qHd8, was detected on chromosome 8. The range at qHd8 was approximately 7.7 cM, with RM72 and RM404 markers near the peak. There were 13 contigs and 1 ORF. Protein sequence analysis showed that rice was similar to Os08g0341700, AtSFH13, and AtSFH7 proteins. Os08g0341700, which is involved in signal transduction, is similar to phosphatidylinositol transfer-like protein II, and complete information is not available, but it is believed to play a role in the phosphatidylinositol-specific signaling pathway related to Sec14P.","PeriodicalId":16322,"journal":{"name":"Journal of Life Science","volume":"15 1","pages":"844-850"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88813934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inhibitory Effects of Loranthus Parasiticus Extract on Carbohydrate Digestive Enzymes and Postprandial Hyperglycemia 寄生蜂提取物对碳水化合物消化酶和餐后高血糖的抑制作用

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.1.18

Min-jung Park, Jae-Eun Park, Ji-Sook Han

{"title":"Inhibitory Effects of Loranthus Parasiticus Extract on Carbohydrate Digestive Enzymes and Postprandial Hyperglycemia","authors":"Min-jung Park, Jae-Eun Park, Ji-Sook Han","doi":"10.5352/JLS.2020.30.1.18","DOIUrl":"https://doi.org/10.5352/JLS.2020.30.1.18","url":null,"abstract":"This study was designed to investigate whether Loranthus parasiticus extract (LPE) could inhibit the activities of carbohydrate digestive enzymes and alleviate postprandial hyperglycemia in diabetic mice. Lyophilized L. parasiticus was extracted with 80% ethanol and concentrated. The inhibitory effects of LPE on carbohydrate digestive enzymes were evaluated by examining α-glucosidase and αamylase, and it was seen to inhibit the activities of both enzymes in a dose-dependent manner. More specifically, the IC50 values of LPE against α-glucosidase and α-amylase were 0.121±0.007 and 0.157± 0.004 mg/ml, respectively, significantly lower than those of acarbose, showing that LPE has stronger inhibitory effects than the positive control. These results suggest that LPE strongly inhibits the activities of these digestive enzymes. Blood glucose levels in the control group of diabetic mice increased to 490.00±28.52 mg/dl and 474.60±25.30 mg/dl at 60 and 120 min after a meal, respectively. However, when LPE was added to starch, postprandial blood glucose levels were significantly reduced (463.0±23.73 and 418.5±24.50 mg/dl at 60 and 120 min, respectively; p<0.05). The area under the curve also significantly decreased following administration of LPE, with no cytotoxicity. These results therefore indicate that LPE could be used as an α-glucosidase and α-amylase inhibitor and delay carbohydrate digestion and, thus, glucose absorption after a meal.","PeriodicalId":16322,"journal":{"name":"Journal of Life Science","volume":"39 1","pages":"18-25"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90962756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of the CRISPR/Cas System for Point-of-care Diagnosis of Cattle Disease CRISPR/Cas系统在牛疾病即时诊断中的应用

Journal of Life Science Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.3.313

Wonhee Lee, Yoonseok Lee

引用次数: 0