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UDP-Glycosyltransferases

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https://www.readbyqxmd.com/read/28633497/genome-wide-identification-and-functional-characterization-of-udp-glucosyltransferase-genes-involved-in-flavonoid-biosynthesis-in-glycine-max
#1
Qinggang Yin, Guoan Shen, Shaokang Di, Cunying Fan, Zhenzhan Chang, Yongzhen Pang
Flavonoids, natural products abundant in the model legume Glycine max, confer benefits to plants and animals health. Flavonoids are present in soybean mainly as glycoconjugates. However, the biosynthesis mechanisms of flavonoid glycosides are largely unknown in G. max. In the present study, 212 putative UDP-glycosyltransferase (UGTs) genes were identified in G. max by genome-wide searching. The GmUGT genes were distributed differentially among the twenty chromosomes, and they were expressed in various tissues with distinct expression profile...
June 19, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28561788/comprehensive-characterization-for-ginsenosides-biosynthesis-in-ginseng-root-by-integration-analysis-of-chemical-and-transcriptome
#2
Jing-Jing Zhang, He Su, Lei Zhang, Bao-Sheng Liao, Shui-Ming Xiao, Lin-Lin Dong, Zhi-Gang Hu, Ping Wang, Xi-Wen Li, Zhi-Hai Huang, Zhi-Ming Gao, Lian-Juan Zhang, Liang Shen, Rui-Yang Cheng, Jiang Xu, Shi-Lin Chen
Herbgenomics provides a global platform to explore the genetics and biology of herbs on the genome level. Panax ginseng C.A. Meyer is an important medicinal plant with numerous pharmaceutical effects. Previous reports mainly discussed the transcriptome of ginseng at the organ level. However, based on mass spectrometry imaging analyses, the ginsenosides varied among different tissues. In this work, ginseng root was separated into three tissues-periderm, cortex and stele-each for five duplicates. The chemical analysis and transcriptome analysis were conducted simultaneously...
May 31, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28533786/high-density-linkage-map-construction-and-mapping-of-yield-trait-qtls-in-maize-zea-mays-using-the-genotyping-by-sequencing-gbs-technology
#3
Chengfu Su, Wei Wang, Shunliang Gong, Jinghui Zuo, Shujiang Li, Shizhong Xu
Increasing grain yield is the ultimate goal for maize breeding. High resolution quantitative trait loci (QTL) mapping can help us understand the molecular basis of phenotypic variation of yield and thus facilitate marker assisted breeding. The aim of this study is to use genotyping-by-sequencing (GBS) for large-scale SNP discovery and simultaneous genotyping of all F2 individuals from a cross between two varieties of maize that are in clear contrast in yield and related traits. A set of 199 F2 progeny derived from the cross of varieties SG-5 and SG-7 were generated and genotyped by GBS...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28528234/enzymatic-synthesis-of-novel-corylifol-a-glucosides-via-a-udp-glycosyltransferase
#4
Nan Li, Jian Miao, Jing Li, Yu-Ru Zhao, Hong-Mei Li, Yi-Qun Dai, Qiang Huo, Cheng-Zhu Wu, Tao Ma
Corylifol A, a member of the isoflavone subclass of isoflavonoids, has long been considered to have various biological activities. Here, we sought to synthesize corylifol A glucosides by the in vitro glucosylation reaction using the UDP-glycosyltransferase YjiC from Bacillus licheniformis DSM 13, and obtained two novel glucosides: corylifol A-4',7-di-O-beta-d-glucopyranoside (1) and corylifol A-4'-O-beta-d-glucopyranoside (2). To improve the yield of the products, the reaction time, concentration of UDP-glucose, and pH of the buffer were optimized...
May 11, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28527513/enzymatic-biosynthesis-of-novel-neobavaisoflavone-glucosides-via-bacillus-udp-glycosyltransferase
#5
Tao Ma, Yi-Qun Dai, Nan Li, Qiang Huo, Hong-Mei Li, Yu-Xin Zhang, Zheng-Hao Piao, Cheng-Zhu Wu
The present study was designed to perform structural modifications of of neobavaisoflavone (NBIF), using an in vitro enzymatic glycosylation reaction, in order to improve its water-solubility. Two novel glucosides of NBIF were obtained from an enzymatic glycosylation by UDP-glycosyltransferase. The glycosylated products were elucidated by LC-MS, HR-ESI-MS, and NMR analysis. The HPLC peaks were integrated and the concentrations in sample solutions were calculated. The MTT assay was used to detect the cytotoxic activity of compounds in cancer cell lines...
April 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28503180/transcriptomic-comparison-reveals-candidate-genes-for-triterpenoid-biosynthesis-in-two-closely-related-ilex-species
#6
Lingling Wen, Xiaoyun Yun, Xiasheng Zheng, Hui Xu, Ruoting Zhan, Weiwen Chen, Yaping Xu, Ye Chen, Jie Zhang
Native to Southern China, Ilex pubescens and Ilex asprella are frequently used in traditional Chinese medicine. Both of them produce a large variety of ursane-type triterpenoid saponins, which have been demonstrated to have different pharmacological effects. However, little is known about their biosynthesis. In this study, transcriptomic analysis of I. pubescens and comparison with its closely related specie I. asprella were carried out to identify potential genes involved in triterpenoid saponin biosynthesis...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28496260/overexpression-of-a-cytochrome-p450-and-a-udp-glycosyltransferase-is-associated-with-imidacloprid-resistance-in-the-colorado-potato-beetle-leptinotarsa-decemlineata
#7
Emine Kaplanoglu, Patrick Chapman, Ian M Scott, Cam Donly
Current control of insect pests relies on chemical insecticides, however, insecticide resistance development by pests is a growing concern in pest management. The main mechanisms for insecticide resistance typically involve elevated activity of detoxifying enzymes and xenobiotic transporters that break-down and excrete insecticide molecules. In this study, we investigated the molecular mechanisms of imidacloprid resistance in the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), an insect pest notorious for its capacity to develop insecticide resistance rapidly...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28484911/molecular-cloning-and-expression-of-a-glycosyltransferase-from-bacillus-subtilis-for-modification-of-morin-and-related-polyphenols
#8
Qianqian Wang, Yixiang Xu, Jiaqi Xu, Xudong Wang, Chen Shen, Yan Zhang, Xiufeng Liu, Boyang Yu, Jian Zhang
OBJECTIVES: To characterize glycosyltransferases from Bacillus subtilis ATCC 6633 and investigate their substrate specificity towards plant polyphenols. RESULTS: Among the cloned and expressed six UDP-glycosyltransferases (BsGT1-6), BsGT-1 showed activity with a wide range of polyphenols: morin, quercetin, alizarin, rehin, curcumin and aloe emodin. The gene of BsGT-1 has an ORF of 1206 bp encoding 402 amino acids. The recombinant enzyme was purified to homogeneity by Ni-NTA affinity chromatograph, and its biochemical characteristics were identified by HPLC-UV/MS, (1)H-NMR and (13)C-NMR...
May 8, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28398082/transcriptomic-response-of-arabidopsis-thaliana-l-heynh-roots-to-ibuprofen
#9
Premysl Landa, Sylva Prerostova, Lenka Langhansova, Petr Marsik, Tomas Vanek
Surface waters in urban areas are contaminated by ibuprofen (IBP), a popular and extensively used anti-inflammatory drug. In this study, we investigated the transcriptomic response in Arabidopsis thaliana (L.) Heynh. roots with the aim of revealing genes that are potentially involved in IBP detoxification and elucidating the effect of IBP on plants. IBP upregulated 63 and downregulated 38 transcripts (p-value < 0.1, fold change ≥2) after 2-day exposure to a 5-µM (1.03 mg/L) concentration of IBP under hydroponic conditions...
August 3, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28382047/genome-wide-identification-expression-patterns-and-functional-analysis-of-udp-glycosyltransferase-family-in-peach-prunus-persica-l-batsch
#10
Boping Wu, Liuxiao Gao, Jie Gao, Yaying Xu, Hongru Liu, Xiangmei Cao, Bo Zhang, Kunsong Chen
Peach (Prunus persica L. Batsch) is a commercial grown fruit trees, important because of its essential nutrients and flavor promoting secondary metabolites. The glycosylation processes mediated by UDP-glycosyltransferases (UGTs) play an important role in regulating secondary metabolites availability. Identification and characterization of peach UGTs is therefore a research priority. A total of 168 peach UGT genes that distributed unevenly across chromosomes were identified based on their conserved PSPG motifs...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28352078/mining-of-efficient-microbial-udp-glycosyltransferases-by-motif-evolution-cross-plant-kingdom-for-application-in-biosynthesis-of-salidroside
#11
Bo Fan, Tianyi Chen, Sen Zhang, Bin Wu, Bingfang He
The plant kingdom provides a large resource of natural products and various related enzymes are analyzed. The high catalytic activity and easy genetically modification of microbial enzymes would be beneficial for synthesis of natural products. But the identification of functional genes of target enzymes is time consuming and hampered by many contingencies. The potential to mine microbe-derived glycosyltransferases (GTs) cross the plant kingdom was assessed based on alignment and evolution of the full sequences and key motifs of target enzymes, such as Rhodiola-derived UDP-glycosyltransferase (UGT73B6) using in salidroside synthesis...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28334183/comparative-transcriptional-analysis-of-the-host-specialized-aphids-aphis-gossypii-hemiptera-aphididae
#12
Yuan-Chen Zhang, Hai-Xia Lei, Ning-Hui Miao, Xiang-Dong Liu
Host specialization is an ubiquitous character in aphid populations. Many polyphagous aphid populations usually consist of several subpopulations that have strong fidelity to a specific host or a subset of host range. Host specialization is an evolutional result of food habit of insects. However, genetic basis and molecular mechanism of host specialization are still unclear. In this study, we presented a comparative analysis on global gene expression profiles of three lineages of Aphis gossypii Glover: cotton-specialized (CO), cucurbit-specialized (CU), and CU reared on cowpea (CU-cowpea), using RNA-Seq method...
April 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28327528/anti-obesity-effect-of-bombus-ignitus-queen-glycosaminoglycans-in-rats-on-a-high-fat-diet
#13
Mi Young Ahn, Ban Ji Kim, Ha Jeong Kim, Hyung Joo Yoon, Sang Duck Jee, Jae Sam Hwang, Kun-Koo Park
The mechanism of functional insect glycosaminoglycan (GAG) on obesity caused a high fat diet has not yet been elucidated. Therefore, insect glycosaminoglycans derived from Isaria sinclairii, Bombus ignitus (a type of bumblebee) queen, and Gryllus bimaculatus were purified and investigated as a potential functional food. 14-week old male Wistar rats were fed a high-fat diet (HFD) for 6 weeks. There were five groups that received daily intraperitoneal administration of phosphate buffered saline (PBS, control), GbG (GAG from Gryllus bimaculatus) 10 mg/kg, ISG (GAG from Isaria sinclairii) 10 mg/kg, IQG (GAG from Bombus ignites) 10 mg/kg, or Pravastatin (2 mg/kg)...
March 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28285020/uplc-qtof-ms-ms-based-phenolic-profile-and-their-biosynthetic-enzyme-activity-used-to-discriminate-between-cashew-apple-anacardium-occidentale-l-maturation-stages
#14
Aline G Cunha, Edy S Brito, Carlos F H Moura, Paulo R V Ribeiro, Maria Raquel A Miranda
Cashew immature and ripe peduncles (Anacardium occidentale L.) from orange- and red-colored clones CCP 76 and BRS 189, respectively, were prepared as juice or fibrous fraction and submitted to UPLC-MS analyses, while the soluble fraction was also submitted to enzymatic evaluation. Cinnamoyl glucoside was present in ripe juice samples from both cashew clones, while monogalloyl diglucoside and digalloyl glucoside were present in immature juice samples from both cashew clones. Four compounds were found at immature fiber of both clones, anacardic acids (1, 2, 3) and GA19...
April 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28249567/a-reference-gene-set-for-sex-pheromone-biosynthesis-and-degradation-genes-from-the-diamondback-moth-plutella-xylostella-based-on-genome-and-transcriptome-digital-gene-expression-analyses
#15
Peng He, Yun-Fei Zhang, Duan-Yang Hong, Jun Wang, Xing-Liang Wang, Ling-Hua Zuo, Xian-Fu Tang, Wei-Ming Xu, Ming He
BACKGROUND: Female moths synthesize species-specific sex pheromone components and release them to attract male moths, which depend on precise sex pheromone chemosensory system to locate females. Two types of genes involved in the sex pheromone biosynthesis and degradation pathways play essential roles in this important moth behavior. To understand the function of genes in the sex pheromone pathway, this study investigated the genome-wide and digital gene expression of sex pheromone biosynthesis and degradation genes in various adult tissues in the diamondback moth (DBM), Plutella xylostella, which is a notorious vegetable pest worldwide...
March 1, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28215607/impact-of-blue-red-and-far-red-light-treatments-on-gene-expression-and-steviol-glycoside-accumulation-in-stevia-rebaudiana
#16
Yuki Yoneda, Hiroshi Nakashima, Juro Miyasaka, Katsuaki Ohdoi, Hiroshi Shimizu
Stevia rebaudiana (Bertoni) Bertoni is a plant that biosynthesizes a group of natural sweeteners that are up to approximately 400 times sweeter than sucrose. The sweetening components of S. rebaudiana are steviol glycosides (SGs) that partially share their biosynthesis pathway with gibberellins (GAs). However, the molecular mechanisms through which SGs levels can be improved have not been studied. Therefore, transcription levels of several SG biosynthesis-related genes were analyzed under several light treatments involved in GA biosynthesis...
May 2017: Phytochemistry
https://www.readbyqxmd.com/read/28159792/two-novel-fungal-phenolic-udp-glycosyltransferases-from-absidia-coerulea-and-rhizopus-japonicus
#17
Kebo Xie, Xiaoxiang Dou, Ridao Chen, Dawei Chen, Cheng Fang, Zhiyan Xiao, Jungui Dai
In the present study, two novel phenolic UDP glycosyltransferases (P-UGTs), UGT58A1 and UGT59A1, which can transfer sugar moieties from active donors to phenolic acceptors to generate corresponding glycosides, were identified in the fungal kingdom. UGT58A1 (from Absidia coerulea) and UGT59A1 (from Rhizopus japonicas) share a low degree of homology with known UGTs from animals, plants, bacteria, and viruses. These two P-UGTs are membrane-bound proteins with an N-terminal signal peptide and a transmembrane domain at the C terminus...
April 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28120309/microbial-production-of-astilbin-a-bioactive-rhamnosylated-flavanonol-from-taxifolin
#18
Nguyen Huy Thuan, Sailesh Malla, Nguyen Thanh Trung, Dipesh Dhakal, Anaya Raj Pokhrel, Luan Luong Chu, Jae Kyung Sohng
Flavonoids are plant-based polyphenolic biomolecules with a wide range of biological activities. Glycosylated flavonoids have drawn special attention in the industries as it improves solubility, stability, and bioactivity. Herein, we report the production of astilbin (ATN) from taxifolin (TFN) in genetically-engineered Escherichia coli BL21(DE3). The exogenously supplied TFN was converted to ATN by 3-O-rhamnosylation utilizing the endogeneous TDP-L-rhamnose in presence of UDP-glycosyltransferase (ArGT3, Gene Bank accession number: At1g30530) from Arabidopsis thaliana...
February 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28100172/integrated-genomics-based-mapping-reveals-the-genetics-underlying-maize-flavonoid-biosynthesis
#19
Min Jin, Xuehai Zhang, Mingchao Zhao, Min Deng, Yuanhao Du, Yang Zhou, Shouchuang Wang, Takayuki Tohge, Alisdair R Fernie, Lothar Willmitzer, Yariv Brotman, Jianbing Yan, Weiwei Wen
BACKGROUND: Flavonoids constitute a diverse class of secondary metabolites which exhibit potent bioactivities for human health and have been indicated to play an important role in plant development and defense. However, accumulation and variation of flavonoid content in diverse maize lines and the genes responsible for their biosynthesis in this important crop remain largely unknown. In this study, we combine genetic mapping, metabolite profiling and gene regulatory network analysis to further enhance understanding of the maize flavonoid pathway...
January 18, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/27914321/functional-regulation-of-ginsenoside-biosynthesis-by-rna-interferences-of-a-udp-glycosyltransferase-gene-in-panax-ginseng-and-panax-quinquefolius
#20
Chao Lu, Shoujing Zhao, Guanning Wei, Huijuan Zhao, Qingling Qu
Panax ginseng (Asian ginseng) and Panax quinquefolius (American ginseng) have been used as medicinal and functional herbal remedies worldwide. Different properties of P. ginseng and P. quinquefolius were confirmed not only in clinical findings, but also at cellular and molecular levels. The major pharmacological ingredients of P. ginseng and P. quinquefolius are the triterpene saponins known as ginsenosides. The P. ginseng roots contain a higher ratio of ginsenoside Rg1:Rb1 than that in P. quinquefolius...
February 2017: Plant Physiology and Biochemistry: PPB
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