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110. Phthalate debranched Canna edulis Ker starch with high degree of substitution: preparation, characterization and property

Author

Tang Hongbo, Zhao Qian, Li Yanping, and Liu Xiao-jun

Subjects
chemistry.chemical_classification, Phthalic anhydride, Polymers and Plastics, biology, Starch, Canna, Phthalate, General Chemistry, Polymer, Condensed Matter Physics, biology.organism_classification, chemistry.chemical_compound, Crystallinity, chemistry, Ionic liquid, Materials Chemistry, Thermal stability, Nuclear chemistry
Abstract

Debranched Canna edulis Ker starch (DCEKS) was effectively esterified in 1-butyl-3- methylimidazolium chloride (ionic liquid) to shorten the esterification time of phthalic anhydride and enhance the substitution degree. The results indicated that the esterification of phthalic anhydride obviously improved the thermal stability of CEKS, while the debranching slightly increased the thermal stability of CEKS. DCEKS was still a semicrystalline polymer like CEKS, and its crystalline structure was not changed by the debranching, but phthalate debranched Canna edulis Ker starch (PDCEKS) was almost an amorphous polymer due to the high esterification in the ionic liquid. The esterification decreased the average size of DCEKS, whereas the debranching increased the average size. The esterification was unevenly completed on DCEKS particles. Both debranching and esterification could result in a decrease in the freeze–thaw stability, swelling power and viscosity of CEKS. The stretching vibration of benzene rings appeared at the wave numbers of 1598 cm−1, 1077 cm−1 and 640 cm−1.

Published
2021

121. Expansion of the global RNA virome reveals diverse clades of bacteriophages

Author

Neri, Uri, primary, Wolf, Yuri I., additional, Roux, Simon, additional, Camargo, Antonio Pedro, additional, Lee, Benjamin, additional, Kazlauskas, Darius, additional, Chen, I. Min, additional, Ivanova, Natalia, additional, Zeigler Allen, Lisa, additional, Paez-Espino, David, additional, Bryant, Donald A., additional, Bhaya, Devaki, additional, Krupovic, Mart, additional, Dolja, Valerian V., additional, Kyrpides, Nikos C., additional, Koonin, Eugene V., additional, Gophna, Uri, additional, Narrowe, Adrienne B., additional, Probst, Alexander J., additional, Sczyrba, Alexander, additional, Kohler, Annegret, additional, Séguin, Armand, additional, Shade, Ashley, additional, Campbell, Barbara J., additional, Lindahl, Björn D., additional, Reese, Brandi Kiel, additional, Roque, Breanna M., additional, DeRito, Chris, additional, Averill, Colin, additional, Cullen, Daniel, additional, Beck, David A.C., additional, Walsh, David A., additional, Ward, David M., additional, Wu, Dongying, additional, Eloe-Fadrosh, Emiley, additional, Brodie, Eoin L., additional, Young, Erica B., additional, Lilleskov, Erik A., additional, Castillo, Federico J., additional, Martin, Francis M., additional, LeCleir, Gary R., additional, Attwood, Graeme T., additional, Cadillo-Quiroz, Hinsby, additional, Simon, Holly M., additional, Hewson, Ian, additional, Grigoriev, Igor V., additional, Tiedje, James M., additional, Jansson, Janet K., additional, Lee, Janey, additional, VanderGheynst, Jean S., additional, Dangl, Jeff, additional, Bowman, Jeff S., additional, Blanchard, Jeffrey L., additional, Bowen, Jennifer L., additional, Xu, Jiangbing, additional, Banfield, Jillian F., additional, Deming, Jody W., additional, Kostka, Joel E., additional, Gladden, John M., additional, Rapp, Josephine Z., additional, Sharpe, Joshua, additional, McMahon, Katherine D., additional, Treseder, Kathleen K., additional, Bidle, Kay D., additional, Wrighton, Kelly C., additional, Thamatrakoln, Kimberlee, additional, Nusslein, Klaus, additional, Meredith, Laura K., additional, Ramirez, Lucia, additional, Buee, Marc, additional, Huntemann, Marcel, additional, Kalyuzhnaya, Marina G., additional, Waldrop, Mark P., additional, Sullivan, Matthew B., additional, Schrenk, Matthew O., additional, Hess, Matthias, additional, Vega, Michael A., additional, O’Malley, Michelle A., additional, Medina, Monica, additional, Gilbert, Naomi E., additional, Delherbe, Nathalie, additional, Mason, Olivia U., additional, Dijkstra, Paul, additional, Chuckran, Peter F., additional, Baldrian, Petr, additional, Constant, Philippe, additional, Stepanauskas, Ramunas, additional, Daly, Rebecca A., additional, Lamendella, Regina, additional, Gruninger, Robert J., additional, McKay, Robert M., additional, Hylander, Samuel, additional, Lebeis, Sarah L., additional, Esser, Sarah P., additional, Acinas, Silvia G., additional, Wilhelm, Steven S., additional, Singer, Steven W., additional, Tringe, Susannah S., additional, Woyke, Tanja, additional, Reddy, T.B.K., additional, Bell, Terrence H., additional, Mock, Thomas, additional, McAllister, Tim, additional, Thiel, Vera, additional, Denef, Vincent J., additional, Liu, Wen-Tso, additional, Martens-Habbena, Willm, additional, Allen Liu, Xiao-Jun, additional, Cooper, Zachary S., additional, and Wang, Zhong, additional

Published
2022
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132. SNP in pre-miR-1666 decreases mature miRNA expression and is associated with chicken performance

Author

Wang, Shan-He, Wang, Shun-Hong, Li, Hong, Sun, Gui-Rong, Lyu, Shi-Jie, Liu, Xiao-Jun, Li, Zhuan-Jian, and Kang, Xiang-Tao

Subjects
Gene expression -- Identification and classification, MicroRNA -- Physiological aspects, Single nucleotide polymorphisms -- Identification and classification, Chickens -- Genetic aspects, Biological sciences
Abstract

Polymorphisms in miRNA genes could potentially alter various biological processes by influencing the processing and (or) target selection of miRNAs. The rs14120863 (C > G) mutation, which we characterized in a Gushi-Anka [F.sub.2] resource population, resides in the precursor region of miR-1666. Association analysis with chicken carcass and growth traits showed that the SNP was significantly associated with carcass weight, evisceration weight, breast muscle weight, leg muscle weight, and body weight at 8 weeks of age, as well as some body size indexes including shank girth, chest breadth, breast bone length, and body slanting length, in the Gushi-Anka [F.sub.2] resource population. Quantitative RT-PCR results showed that miR-1666 expression levels in muscle tissues differed within various genotypes. Experiment in DF1 cells further confirmed that the SNP in miR-1666 could significantly alter mature miRNA production. Subsequently, using dual-luciferase report assay, we verified that miR-1666 could perform its function through targeting of the CBFB gene. In conclusion, the SNP in the precursor of miR-1666 could significantly reduce mature miR-1666 production. It may further affect the function of miR-1666 through the target gene CBFB, hence it is associated with chicken growth traits. Key words: chicken, microRNA, biogenesis, SNP, CBFB. Le polymorphisme au sein de genes codant pour des miARN pourrait potentiellement alterer divers processus biologiques en influencant la maturation ou la selection de la cible de ces miARN. La mutation rs14120863 (C > G), que les auteurs ont caracterise au sein de la population [F.sub.2] Gushi-Anka, est situee dans la region precurseur du miR1666. Une analyse d'association a montre que ce SNP etait significativement associe avec le poids de la carcasse, le poids eviscere, le poids de la poitrine desossee, le poids de lacuisse desossee, le poids ahuit semaines ainsique certains indices corporels comme la circonference du jarret, l'angle de poitrine, la longueur du brechet and la longueur du dos au sein de la population [F.sub.2] Gushi-Anka. Les resultats d'une analyse RT-PCR quantitative ont montre que l'expression du miR-1666 dans les muscles etait differente chez differents genotypes. Une experience avec des cellules DF1 a confirme que le SNP au sein du miR-1666 pouvait changer de maniere significative la production de miARN mature. Ensuite, a l'aide d'un rapporteur a luciferase double, les auteurs ont confirme que le miR-1666 pouvait agir en ciblant le gene CBFB. En conclusion, le SNP situe dans le precurseur du miR-1666 pourrait entrainer une reduction significative de la production de miR-1666 mature. Il pourrait egalement affecter la fonction du miR-1666 via le gene-cible CBFB, d'ou son association avec les composantes de croissance chez le poulet. [Traduit par la Redaction] Mots-cles : poulet, microARN, biogenese, SNP, CBFB., Introduction MicroRNAs (miRNAs) are single-stranded RNA molecules of 19-25 nt in length that are generated from endogenous hairpin-shaped transcripts (Bartel 2004; Kim 2005). MiRNAs act as post-transcriptional gene suppressors by [...]

Published
2015
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137. Integrative analysis of hypothalamic transcriptome and genetic association study reveals key genes involved in the regulation of egg production in indigenous chickens

Author

WANG, Dan-dan, primary, ZHANG, Yan-yan, additional, TENG, Meng-lin, additional, WANG, Zhang, additional, XU, Chun-lin, additional, JIANG, Ke-ren, additional, MA, Zheng, additional, LI, Zhuan-jian, additional, TIAN, Ya-dong, additional, KANG, Xiang-tao, additional, LI, Hong, additional, and LIU, Xiao-jun, additional

Published
2022
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138. Size Distribution of Microparticles: A New Parameter to Predict Acute Lung Injury After Cardiac Surgery With Cardiopulmonary Bypass

Author

Yuan, Hao-Xiang, primary, Liang, Kai-Feng, additional, Chen, Chao, additional, Li, Yu-Quan, additional, Liu, Xiao-Jun, additional, Chen, Ya-Ting, additional, Jian, Yu-Peng, additional, Liu, Jia-Sheng, additional, Xu, Ying-Qi, additional, Ou, Zhi-Jun, additional, Li, Yan, additional, and Ou, Jing-Song, additional

Published
2022
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146. Broadband acoustic converging and asymmetric converging based on thermoacoustic phased arrays.

Author

Sun, Hong-xiang, Hou, An-ru, Qian, Jiao, Ge, Yong, Yuan, Shou-qi, Guan, Yi-Jun, Si, Qiao-rui, and Liu, Xiao-jun

Subjects
THERMOACOUSTICS, THERMOACOUSTIC heat engines, CONVERGING lenses, BANDWIDTH compression, MONOMOLECULAR films
Abstract

We report broadband acoustic converging and asymmetric converging based on mono- and dual-layer thermoacoustic phased arrays of Bessel-like beams, respectively. Based on the thermoacoustic units, we design a converging lens constructed by a monolayer phased array of the Bessel-like beam and demonstrate the large converging region (16.8λ), the broad fractional bandwidth (0.77), and the design feasibility of the converging lens. Besides, by adjusting the phase distribution of the converging lens, the cylindrical acoustic source can also be converged on a large region perfectly. More importantly, we design an asymmetric converging lens by introducing dual-layer phased arrays, in which the acoustic energy can be converged on a large region at a side but cannot pass through the lens at the other side. The converging region can be manipulated by adjusting the distance between two phased arrays. The proposed lenses have the advantages of large converging region, broad bandwidth, weak diffraction, and asymmetric transmission showing excellent potential applications in acoustic devices. [ABSTRACT FROM AUTHOR]

Published
2019
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