1. Anderson, A. J., and E. A. Dawes. 1990. Ocurrence, metabolism, metabolic role, and industrial uses of bacterial polyhydroxyalkanoates. Microbiol. Rev. 54:450-472. 2. Barnes, E. M. 1972. Respiration coupled glucose transport in membrane vesicles from Azotobacter vinelandii. Arch. Biochem. Biophys.152:795-799. 3. Beale, J. M. and J. L. Foster. 1996. Carbohydrate fluxes into alginate biosynthesis inAzotobacter vinelandii NCIB 8789: NMR Investigations of the triose pools. Biochemistry 35:4492-4501. 4. Campos, M. E., J. M. Martínez-Salazar, L. Lloret, S. Moreno, C. Núñez, G. Espín, and G. Soberón-Chávez. 1996. Characterization of the gene coding for GDP-mannose dehydrogenase (algD) from Azotobacter vinelandii. J. Bacteriol. 178:1793-1799. 5 . Castañeda M., J. Guzmán, S. Moreno, and G. Espín. 2000. GacS sensor kinase regulates alginate and poly-b-hydroxybutyrate production in Azotobacter vinelandii. J. Bacteriol. 182: 2624-2628. 6. Castañeda, M., J. Sánchez, and G. Espín. Unpublished results 7. Clementi, F. 1998. Alginate production by Azotobacter vinelandii. Crit. Rev, Biotechnol.17: 327-361. 8. Corbell, N., and J. E. Loper. 1995. A global regulator of secondary metabolite production in Pseudomonas fluorescens Pf5. J. Bacteriol. 177:6230-6236. 9. Costerton, W. J., K. J. Cheng, G. G. Gessey, T. I. Ladd, J. C. Nickel, M. Disgupta and T. Marrie. 1987. Bacterial biofilms in nature and disease. Ann. Rev. Microbiol. 41:435-464. 10. Dawes, A. E. 1990. Novel microbial polymers: an introductory over view. In Novel Biodegradable Microbila Polymers. Ed. Dawes, E. A. pp 3-16. Dordrecht, Kluwer Academic Publishers. 11. Deretic V., D. W. Martin, M. J. Schurr, M. H. Mudd, N. S. Hibler, R. Curcic, and J. C. Boucher.1993. Regulation of mucoidy in Pseudomonas aeruginosa. Bio/Technology 11:1133-1136. 12. Ertesvag, H., H. K. Hoidal, I. K. Hals, A. Rian, B. Doseth, and S. Valla. 1995. A family of modular type mannuronan C-5-epimerase genes controls alginate structure in Azotobacter vinelandii. Mol. Microbiol. 16:719-731. 13. Fyfe, J. A. M. and J. R. W. Govan. 1983. Synthesis regulation and biological function of bacterial alginate. In: Progress in Industrial Microbiol. Vol. 18 pp. 45-83, Burshell, M. E. Ed., Elsevier. 14. Gacesa, P. 1998. Bacterial alginate biosynthesis, recent progress and future prospects. Microbiol. 144:1133-1143. 15. Gallon, R. J. 1992. Reconciling the incompatible: N2 fixation and O2. Transley rev no 44. New. Phytol.122:571-609. 16. Gama, S, J. Guzmán, S. Moreno, and G. Espín. 2000. Identification of an Azotobacter vinelandii gene (aldA) encoding an aldehyde dehydrogenase and its role in encystment induction by n-butanol J. Bacteriol. submitted 17. Hitchins, V. M., and H. L. Sadoff. 1970. Morphogenesis of cysts in Azotobacter vinelandii. J. Bacteriol. 104:492-498. 18. Hitchins, V. M., and H. L. Sadoff. 1973. Sequential metabolic events during encystment of Azotobacter vinelandii. J. Bacteriol. 113:1273-1279. 19. Hoch, J. A., and T. J. Silhavy. 1995. Two component signal transduction. American Society of Microbiology, Washington D.C. 20. Laferty, R. M., B. Korsakto, and W. Korsakto. 1990. Microbial Production of polyhydroxybutiric acid. In, Rehm H. J., G. Reed Eds. Biotechnology. 21. Larsen, B., and A. Haug. 1971. Biosynthesis of alginate: I. Composition and structure of alginate produced by Azotobacter vinelandii. Carbohydr. Res. 17:287-296. 22. Lin, L. P. and H. L. Sadoff. 1968. Encystment and polymer production by Azotobacter vinelandii in the presence of b-hydroxybutyrate. J. Bacteriol. 98:1335-1341. 23. Lloret, L., R. Barreto, R. León, S. Moreno, J. Martínez-Salazar, G. Espín, and G. Soberón-Chávez. 1996. Genetic analysis of the transcriptional arrangement of Azotobacter vinelandii alginate biosynthetic genes: identification of two independent promoters. Mol. Microbiol. 21:449-457. 24. Loperfido, B. and H. L. Sadoff. 1973. Germination of Azotobacter vinelandii in the presence of b-hydroxybutyrate. J. Bacteriol. 98:1335-1341. 25. Manchak, J., and W. J. Page. 1994. Control of polyhydroxyalkanoate synthesis in Azotobacter vinelandii cysts: sequence of macromolecular synthesis and nitrogen fixation. J. Bacteriol. 113:841-846. 26. Manchal, J., and J. Vanderleyden. 2000. The "oxygen paradox " of dinitrogen-fixin bacteria. Biol. Fertil. Soils. 30:363-373. 27. Martínez-Salazar, J. M., S. Moreno, R. Nájera, J. C. Boucher, G. Espín, G. Soberón-Chávez, and V. Deretic. 1996. Characterization of the genes coding for the putative sigma factor AlgU and its negative regulators MucA MucB MucC and MucD in Azotobacter vinelandii and evaluation of their role in alginate biosynthesis. J. Bacteriol. 178:1800-1808. 28. May, T., and A. M. Chakrabarty. 1994. Pseudomonas aeruginosa: genes and enzymes of alginate synthesis. Trends Microbiol. 2:151-157. 29. Mejía-Ruíz, H, J. Guzmán, S. Moreno, G. Soberón-Chávez, and G. Espín. 1997. The Azotobacter vinelandii alg8 and alg44 genes are essential for alginate synthesis and can be transcribed from an algD- independent promoter Gene. 199:271-277. 30. Mejía-Ruíz, H, S. Moreno, J. Guzmán, R. Nájera, R. León, G. Soberón-Chávez, and G. Espín. 1997. Isolation and characterization of an Azotobacter vinelandii algK mutant. FEMS Microbiol. Lett. 156:101-106. 31. Moreno, S., J. Guzmán, R. Nájera, G. Soberón-Chávez, and G. Espín. 1998. Role of the alternative?sE factor AlgU in encystment of Azotobacter vinelandii. J. Bacteriol. 180:2766-2769. 32. Mortenson, L. E., and W. Wilson. 1955. Initial states in the breakdown of carbohydrates by Azotobacter vinelandii. Arch. Biochim. Biophys. 53:425-435. 33. Moshiri, F., B. R. Crouse, M. K. Johnson, and M. J. Maier. 1995. The "nitrogenase protective" FeSII protein of Azotobacter vinelandii: overexpression, characterization and crystallization. Biochemestry 34:12973-12982. 34. Moshiri, F., J. W. Kim, C. Fu, and M. J. Maier. 1994. The FeSII protein of Azotobacter vinelandii: is not essential for aerobic nitrogen fixation, but confers significant protection to oxygen-mediated inactivation of nitrogenase in vitro and in vivo. Mol. Microbiol. 14:101-114. 35. Nagpal, P., S. Jafri, M. A., Reddy, and H. K. Das. 1989. Multiple Chromosomes of Azotobacter vinelandii. J. Bacteriol 171:3133-3138. 36. Noguez, R., D. Segura, and G. Espín. Datos no publicados 37. Ninfa, E. G., A. Stock, S. Mowbray, and J. Stock. 1993. Mechanism of autophosphorylation of Escherichia coli nitrogen regulator II (NRII or NtrB): transfosforylation between subunits. J. Bacteriol 175:7024-7032. 38. Núñez, C., S. Moreno, G. Soberón-Chávez, and G. Espín. 1999 The Azotobacter vinelandii response regulator AlgR is essential for cyst formation. J. Bacteriol. 181:141-148. 39. Núñez, C., S. Moreno , L. Cárdenas, G. Soberón-Chávez and G. Espín. 2000. Inactivation of the ampDE operon increases transcription of algD and affects morphology and encystment in Azotobacter vinelandii. J. Bacteriol. 182:4829-4835. 40. Nuñez, C., R. León, J. Guzman, G. Espín, and G. Soberón-Chávez. 2000. Role of Azotobacter vinelandii mucA and mucC gene products in alginate production. J. Bacteriol.182: en prensa 41. Page, W. J., and H. L. Sadoff. 1975. Relationship between calcium and uronic acids in the encystment of Azotobacter vinelandii. J. Bacteriol. 122:145-151. 42. Pindar, D. F., and C. Bucke. 1975. The biosynthesis of alginic acid by Azotobacter vinelandii. Biochem. J. 152:617-622.20. 43. Postma, p. W., J. W. Lengeler, and G. R. Jacobson. 1993. Phosphoenolpyruvate:carbohydrate phosphotranferase system in bacteria. Microbiol Rev. 57:543-594. 44. Powell, B. S., D. L. Curt, T. Inada, Y. Nakamura, V. Michotey, X. Cui, A. Reitzer, M. H. Saier, and J. Reizer. 1995. Novel proteins of the phosphotransferase system encoded within the rpoN operon of Escherichia coli. J. Biol. Chem. 279:4822-4839. 45. Pool, R. K., and S. Hill. 1997. Respiratory protection of nitrogenase activity in Azotobacter vinelandii. Biosci. Rep. 17:303-317. 46. Pries, A., H. Priefert, N. Krúger, and A. SteinbŸchel. 1991. Identification of two Alcaligenes eutrophus loci relevnt to the poly(b- hydroxybutyryc acid)-leaky phenotype which exhibit homology to the ptsH and ptsI of Escherichia coli. J. Bacteriol. 173:5843-5853. 47. Rehm, H.A., H. Ertesvag, and S. Valla. 1996. A new A. vinelandii mannuronan C-5 epimerase gene (algG ) is part of an alg gene cluster physically organized in a manner similar to that in P. aeruginosa. J. Bacteriol. 178:5884-5889. 48. Rehm, H.A. 1996. The A. vinelandii gene algJ encodes an outer membrane protein presumably involved in export of alginate: cloning, sequencing and expression. Microbiology. 142:873-880. 49. Record, M. T., W. S. Resnikoff, M. L. Craig, K. L. McQuade, and P. J. Schlax. 1996. Escherichia coli RNA polymerase (E_70), promoters, and kinetics of the steps of transcription initiation. InEscherichia coli and Salmonella cellular and molecular biology. Ed. F. C. Neidhardt. ASM Press. 50. Reimmann, C., M. Beyeler, A. Latifi, H. Winteler, M. Foglino, A. Lazdunski, and D. Haas. 1997. The global activator GacA of Pseudomonas aeruginosa PAO positively controls the production of the autoinducer N-butyryl-homoserine lactone and the formation of the virulence factors pyocyanin, cyanide, and lipase. Mol. Microbiol. 24:309-319. 51. Reusch, R.N., and Sadoff, H.L. 1979. 5-n-alkylresorcinols from encysting Azotobacter vinelandii: isolation and characterization. J. Bacteriol. 139:448-453. 52. Reusch, R.N., and Sadoff, H.L. 1981. Lipid metabolism during encystment of Azotobacter vinelandii. J. Bacteriol. 145:889-895. 53. Reusch, R.N., and Sadoff, H.L. 1983. Novel lipid components of the Azotobacter vinelandii cyst membrane. Nature. 302:268-270. 54. Ribbe, M., D. Gadkari, and O. Meyer. 1997. N2 fixation by Streptomyces thermoauthotrophicus involves a molibdenum-dinitrogenase and a manganese-superoxide oxidoreductase that couple N2 reduction to the oxidation of superoxide produced from O2 by a molibdenum-CO dehydrogenase. J. Biol. Chem. 272:26627-26633. 55. Robson, R. L., and J. R. Postgate. 1980. Oxygen and hydrogen in biological nitrogen fixation. Annu. Rev. Microbiol. 34:183-207. 56. Romano, A. H., S. J. Eberhard, S. L. Dingle, and T. W McDowell. 1970. Distribution of the phosphoenolpyruvate:glucose phosphotransferase system in bacteria. J. Bacteriol.104:808-813. 57. Romano, A. H., and M. H. Saier. 1992. Evolution of the bacterial phosphoenolpyruvate system. Section I. Physiological and organismic considerations, p 143-170. In R. P. Mortlock (ed), Evolution of metabolic function. CRC Press, Inc., Baca Raton, Fla. 58. Sadoff, H. L. 1975. Encystment and germination in Azotobacter vinelandii. Bacteriol. Rev. 39:516-539. 59. Segura, D. and G. Espín. 1998. Mutational inactivation of a gene homologous to Escherichia coli ptsP affects poly-b-hydroxybutyrate accumulation and nitrogen fixation in Azotobacter vinelandii. J. Bacteriol. 180:4790-4798. 60. Segura, D., E. Vargas, and G. Espín. 2000. b- Ketothiolase genes in Azotobacter vinelandii. Gene en prensa 61. Segura, D. and G. Espín. datos no publicados 62. Senior, P. J., G. A. Beech, G. A. Richie, and E. A. Dawes 1972. The role of oxigen limitation in the formation of poly-b-hydroxybutyrate during batch and continous culture of Azotobacter beijerinkii. Biochem. J. 128:1193-1201. 63. Stevenson, L. H., and M. D. Socolofsky. 1966. Cyst formation and poly-hydroxybutyric acid accumulation in Azotobacter. J. Bacteriol. 91:304-310. 64. Still, G. G., and C. DH Wang. 1964. Glucose catabolism in Azotobacter. Arch. Biochem. Biophys. 105:126-132. 65. Stock, J. B., M. G. Surette, M. Levit, and P. Park. 1995. Two component signal transduction systems: Structure-function relationships and mechanisms of catalysis. p.25-51 in Two component Signal Transduction. Hoch, J. A., and T. J. S. eds. American Society for Microbiology, Washington, D.C.ilhavy 66. Thorneley, R. N., and G. A. Ashby. 1989. Oxydation of nitrogenase iron protein by dioxygen without inactivation could contribute to high respiration rates in Azotobacter species and facilitate nitrogen fixation in other aerobic enviroments. Biochem. J. 261:181-187. 67. Vázquez, A., S. Moreno, J. Guzmán, A. Alvarado, and G. Espín. 1999. Transcriptional organization of the Azotobacter vinelandii algGXLIVFA genes: characterization of algF mutants. Gene 232:217-222 68. Vela, G. R. 1974. Survival of Azotobacter in dry soil. Appl. Microbiol. 28:77-79. 69. Vela, G. R., G. D. Cagle, and P. R Holmgren. 1970. Ultrastructure of Azotobacter vinelandii. J. Bacteriol. 104:933-939. 70. Wong T. Y., and R. J. Maier.1985. H2-dependent mixotrophic growth of N2-fixing Azotobacter vinelandii. J. Bacteriol. 163:528-533. 71. Wyss O., M. G. Newmann, and M. D. Socolofsky.1961. Development and germination of the Azotobacter cyst. J. Biophys. Biochem. Cytol. 10:555-565.

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