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9. Synergistic degradation of pyrene by Pseudomonas aeruginosa PA06 and Achromobacter sp. AC15 with sodium citrate as the co-metabolic carbon source

Author

Jing Li, Maocheng Deng, Shaoqi Zhou, Wei Zhou, Yao Wang, and Chen Weixin

Subjects
0106 biological sciences, Achromobacter, biology, Chemistry, Pseudomonas aeruginosa, Health, Toxicology and Mutagenesis, General Medicine, 010501 environmental sciences, Management, Monitoring, Policy and Law, Bacterial growth, Toxicology, biology.organism_classification, medicine.disease_cause, 01 natural sciences, Enzyme assay, 010602 entomology, chemistry.chemical_compound, Bioremediation, Sodium citrate, biology.protein, medicine, Pyrene, Food science, Bacteria, 0105 earth and related environmental sciences
Abstract

Two pyrene-degrading strains, Pseudomonas aeruginosa PA06 and Achromobacter sp. AC15 were co-incubated in equal proportions as a microbiological consortium and could enhance the degradation of pyrene. The enzymatic activities of the catechol 1,2-dioxygenase (C12O) and 2,3-dioxygenase activities (C23O) were produced complementary expression by P. aeruginosa PA06 and Achromobacter sp. AC15, respectively. Meanwhile, results showed that pyrene degradation was sufficiently promoted in the presence of sodium citrate as a co-metabolic carbon source, likely a result of enhanced biomass and biosurfactant production. The optimized dosage and ideal initial pHs were 1.4 g L−1 and 5.5, respectively. We also analyzed the rate constant of pyrene degradation, cell growth, and enzyme activity. Results show that P. aeruginosa PA06 had a better effect than Achromobacter sp. AC15 in bacterial growth. However, the C23O or C12O activity produced by Achromobacter sp. AC15 continued at a similar or even faster than that of P. aeruginosa PA06. The mixed bacteria had a better effect than any single bacteria, suggesting the strains worked synergistically to enhance the degradation efficiency. In the co-metabolism system of 600 mg/L pyrene and 1.4 g/L sodium citrate, pyrene degradation reached 74.6%, was 1.57 times, 2.06 times, and 3.89 times that of the mix-culture strains, single PA06 and single AC15 without sodium citrate, respectively. Overall, these findings are valuable as a potential tool for the bioremediation of high-molecular-weight PAHs.

Published
2020
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22. A note on quasi-p radical of associative rings

Author

Chen Weixin

Subjects
Discrete mathematics, Pure mathematics, Ring (mathematics), Mathematics::Commutative Algebra, Transfinite induction, Applied Mathematics, Radical of an ideal, Ideal (ring theory), Characterization (mathematics), Associative property, Mathematics
Abstract

Let P be an arbitrary property of rings and homomorphically closed. For an arbitrary ring A we construct quasi-P radical QP(A) with transfinite induction, and give another characterization of quasi-P radical: QP(A) = ∩ Ia ∣Ia. is an ideal of A, and A/I a contains no non-zero P-ideal.

Published
1997
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23. Distribution and phylogenetic analysis of Culex flavivirus in mosquitoes in China

Author

Liang, Wenkai, primary, He, Xiaoxia, additional, Liu, Guifang, additional, Zhang, Shaobai, additional, Fu, Shihong, additional, Wang, Min, additional, Chen, Weixin, additional, He, Ying, additional, Tao, Xiaoyan, additional, Jiang, Hongyue, additional, Lin, Xiaojuan, additional, Gao, Xiaoyan, additional, Hu, Weijun, additional, Liu, Yan, additional, Feng, Lei, additional, Cao, Yuxi, additional, Yang, Guang, additional, Jing, Chunxia, additional, Liang, Guodong, additional, and Wang, Huanyu, additional

Published
2015
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26. Identification and isolation of Genotype-I Japanese Encephalitis virus from encephalitis patients

Author

Wang, Lihua, primary, Fu, Shihong, additional, Zhang, Hailin, additional, Ye, Xufang, additional, Yu, Deshan, additional, Deng, Zhang, additional, Yuan, Jun, additional, Zhai, Yougang, additional, Li, Minghua, additional, Lv, Zhi, additional, Chen, Weixin, additional, Jiang, Hongyue, additional, Gao, Xiaoyan, additional, Cao, Yuxi, additional, Wang, Huanyu, additional, Tang, Qing, additional, and Liang, Guodong, additional

Published
2010
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28. Abstracts of short lectures

Author

Rauwald, H. W., primary, Conner, J., additional, Gray, A., additional, Reynolds, T., additional, Waterman, P., additional, Hartmann, T., additional, Adolph, R. -D., additional, Ehmke, A., additional, Sander, H., additional, Toppel, G., additional, Witte, L., additional, Nyiredy, Sz., additional, Sticher, O., additional, Erdelmeier, C. A. J., additional, van Leeuwen, P. A. S., additional, Kinghorn, A. D., additional, Dallenbach-Tölke, K., additional, Wink, M., additional, Hennessy, Deirdre, additional, Hook, Ingrid, additional, Sheridan, Helen, additional, Mersinger, R., additional, Dornauer, H., additional, Reinhard, E., additional, Heide, L., additional, Tabata, M., additional, Knobloch, K., additional, Jansen, H., additional, Müller, B., additional, Adzet, T., additional, Vila, R., additional, Cañigueral, S., additional, Budzianowski, J., additional, Bachmann, P., additional, Czygan, F. -C., additional, de Witte, P., additional, Lemli, J., additional, 't Hart, L. A., additional, van Enckevort, P. H., additional, Labadie, R. P., additional, van der Heijden, R., additional, de Keyzer, H. H. M., additional, Verhey, E. R., additional, Schripsema, J., additional, Harkes, P. A. A., additional, Verpoorte, R., additional, Svendsen, A. Baerheim, additional, Croom, E. M., additional, Letchamo, W., additional, Vömel, A., additional, Bauer, R., additional, Wray, V., additional, Wagner, H., additional, Marston, A., additional, Hostettmann, K., additional, Andersson, L., additional, Bohlin, L., additional, Iorizzi, M., additional, Riccio, R., additional, Minale, L., additional, Moreno-Lopez, J., additional, van Beek, T. A., additional, van Bokhoven, H., additional, Kraus, J., additional, Blaschek, W., additional, Franz, G., additional, van den Berg, A. J. J., additional, Radema, M. H., additional, Corthout, J., additional, Pieters, L., additional, Claeys, M., additional, Vanden Berghe, D., additional, Vlietinck, A. J., additional, Dungen, F. M. v. d., additional, Vermeulen, N. P. E., additional, Fischer, F. C., additional, Gijbels, M. J. H., additional, Caspers, P. W. J., additional, Gijbels, M. J. M., additional, Fung, S. Y., additional, Herrebout, W. M., additional, van Gelder, W. M. J., additional, van der Graaf, G. M., additional, Pennings, E. J. M., additional, Huizer, H., additional, van Zuilen, K., additional, Kosasi, S., additional, van der Leer, T., additional, ten Hoope, S. M., additional, van der Nat, J. M., additional, van der Sluis, W. G., additional, Bosch, R. v. d., additional, Duine, J. A., additional, Heijden, R. v. d., additional, Leer, T. v. d., additional, Pieters, L. A., additional, Totté, J., additional, Saleh, M. M., additional, Abbas, R. Z., additional, Zwaving, J. H., additional, Sarer, E., additional, Looman, A., additional, Scheffer, J. J. C., additional, Meijer, A. H., additional, Langezaal, C. R., additional, Simons, J. M., additional, Hoof, L. Van, additional, Vanden Berghe, D. A., additional, Woerdenbag, H. J., additional, Hendriks, H., additional, van der Berg, K., additional, van Stralen, R., additional, Malingré, Th. M., additional, Konings, A. W. T., additional, Lemstra, W., additional, Abdo, S., additional, De Bernardi, M., additional, Marinoni, G., additional, Samaniego, S., additional, Mellerio, G., additional, Vidari, G., additional, Adjibadé, Y., additional, Kuballa, B., additional, Cabalion, P., additional, Anton, R., additional, Ibáñez, C., additional, Monasterio, I., additional, Ayoub, S. M. Hussein, additional, Yankov, L. K., additional, Ovtcharov, R. O., additional, Bartsch, C., additional, BaŞaran, A. A., additional, Calis, I., additional, Nishibe, S., additional, Berger, S., additional, Junior, P., additional, Kopanski, L., additional, Beuscher, N., additional, Billeter, M., additional, Meier, B., additional, Döll, M., additional, Braunewell, H., additional, Skrzypczak, L., additional, Wesolowska, M., additional, Gross, G. A., additional, Winkler, T., additional, Colombo, M. L., additional, Tome, F., additional, Crespi-Perellino, N., additional, Guicciardi, A., additional, Minghetti, A., additional, Speroni, E., additional, Vincieri, F., additional, Vita-Finzi, P., additional, Gabetta, B., additional, Scilingo, A., additional, Dorsaz, A. C., additional, Hostettmann, M., additional, Ebert, M., additional, Economou, D., additional, Nahrstedt, A., additional, Schiebel, H. -M., additional, McDowell, M., additional, Eich, E., additional, Kohaupt, G., additional, Stopp, K., additional, Maidhof, A., additional, Müller, W. E. G., additional, Schade, P., additional, Müllen, K., additional, Eilert, U., additional, Wolters, B., additional, El Tanbouly, N., additional, Beck, J. P., additional, Hanna, S., additional, El Alfy, T., additional, Ersöz, T., additional, Chulia, A. J., additional, Garcia, J., additional, Frahm, A. W., additional, Beutner, D., additional, Gautier, P., additional, Shongo, D., additional, Vekemans, X., additional, Van Koninckxloo, M., additional, Van Haelen, M., additional, Lefébvre, C., additional, Gehrmann, B., additional, Kraus, Lj., additional, Giger, E., additional, Baumann, T. W., additional, Heinzer, F., additional, Meusy, J. -P., additional, Chavanne, M., additional, Glombitza, K. -W., additional, Knöss, W., additional, Deutscher, B., additional, Piepenbrink, G., additional, Peter, J., additional, Greinwald, R., additional, Schultze, W., additional, Gundidza, Mazuru, additional, Hölzl, J., additional, Hess, S., additional, Holm, Y., additional, Aho, E., additional, Holopainen, M., additional, Järvelä, K., additional, Seppänen, T., additional, von Schantz, M., additional, Huhtikangas, A., additional, Lapinjoki, S., additional, Veräjänkorva, H., additional, Heiskanen, J., additional, Kauppinen, V., additional, Lounasmaa, M., additional, Huovinen, K., additional, Härmälä, P., additional, Ottoila, P., additional, Jerga, Chr, additional, Merfort, I., additional, Willuhn, G., additional, Jiménez, A., additional, Manez, S., additional, Villar, A., additional, Kahlos, K., additional, Kiviranta, J., additional, Karppanen, H., additional, Huovinen, H., additional, Koch, A., additional, Kreis, H., additional, May, U., additional, Kuštrak, P., additional, Pepeljnjak, S., additional, Antolić, A., additional, Blažević, N., additional, Laakso, I., additional, Ekundayo, O., additional, Oguntimein, B., additional, Lorentzen, Bente, additional, Rørdam, Anne Marie, additional, Madaus, A., additional, Marcinek, Chr, additional, Martinelli, E. M., additional, Seraglia, R., additional, Briquez, M., additional, Reginault, P., additional, Máthé, I., additional, Máthé, A., additional, Meiss, P., additional, Meng, Qingchang, additional, Zhu, Naijue, additional, Chen, Weixin, additional, Miething, H., additional, Seger, V., additional, Hänsel, R., additional, Neuhöfer, H., additional, Lurz, G., additional, Noller, P., additional, Oksman-Caldentey, K. -M., additional, Vuorela, H., additional, Isenegger, M., additional, Strauss, A., additional, Pachaly, P., additional, Adnan, A. Z., additional, Lansing, A., additional, Sin, K. S., additional, Pauli, A., additional, Payá, M., additional, Ivorra, M. D., additional, Poginsky, B., additional, Westendorf, J., additional, Marquardt, H., additional, Potterat, O., additional, Stoeckli-Evans, H., additional, Msonthi, J. D., additional, Randriaminahy, M., additional, Proksch, P., additional, Reher, G., additional, Samochowiec, L., additional, Wójcicki, J., additional, Kadlubowska, D., additional, Kownacka, A., additional, Şarer, E., additional, Sayron-Atasü, E., additional, Cihangir, V., additional, Schmaus, G., additional, Kubeczka, K. -H., additional, Schütz, M., additional, Schulz, G., additional, Stahl-Biskup, E., additional, Seidel, S., additional, Sepasgosarian, J., additional, Laitalainen, T., additional, Światek, L., additional, Grabias, B., additional, Tanker, M., additional, Kurucu, S., additional, Tanker, N., additional, Thron, U., additional, Reichling, J., additional, Martin, R., additional, Vargas, D., additional, Dominguez, X. A., additional, Vollmann, C., additional, Pernilä, H., additional, Nystrand, N., additional, Hinkkanen, R., additional, Walker, J. R. L., additional, Cole, A. L. J., additional, Warncke, D., additional, Kadlubowska, P., additional, Ziegler, S. J., additional, and Zogg, G., additional

Published
1987
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