Harold L Sadoff, Michigan State University, East Lansing, Michigan, USA
Published online: April 2001
DOI: 10.1038/npg.els.0000295
Bacteria of the genus Azotobacter are nitrogen-fixing, Gram-negative organotrophs. At the end of exponential growth, some cells undergo a final division and initiate the formation of cysts. These differentiated cells are strikingly different from endospores formed by Bacillus spp. in their mode of synthesis, their chemical content and their resistance properties.
Keywords: encystment; structure; properties; germination
| References | |
| Hitchins VM and Sadoff HL (1970) Morphogenesis of cysts of Azotobacter vinelandii. Journal of Bacteriology 104: 492–498. | |
| Lin LP and Sadoff HL (1968) Encystment and polymer production by Azotobacter vinelandii in the presence of -hydroxybutyrate. Journal of Bacteriology 95: 2336–2343. | |
| Lin LP and Sadoff HL (1969) Preparation and ultrastructure of the outer coats of Azotobacter vinelandii cysts. Journal of Bacteriology 98: 1335–1341. | |
| Loperfido B and Sadoff HL (1973) Germination of Azotobacter vinelandii cysts: sequence of molecular synthesis and nitrogen fixation. Journal of Bacteriology 113: 841–846. | |
| Manna A and Das HK (1993) Determination of the size of the Azotobacter vinelandii chromosome. Molecular and General Genetics 241(5–6): 719–722. | |
| Page WJ and Sadoff HL (1975) Physiological factors affecting transformation of Azotobacter vinelandii. Journal of Bacteriology 125: 1080–1087. | |
| Reusch RN and Sadoff HL (1979) 5-n-alkyl resorcinols from encysting Azotobacter vinelandii: isolation and characterization. Journal of Bacteriology 139: 448–453. | |
| Reusch RN and Sadoff HL (1988) Putative structure and function of a poly--hydroxybutyrate/calcium polyphosphate channel in bacterial plasma membranes. Proceedings of the National Academy of Sciences of the USA 85: 4176–4180. | |
| Reusch RN, Hiske T, Sadoff HL, Harris R and Beveridge T (1987) Cellular incorporation of poly--hydroxybutyrate into plasma membranes of Escherichia coli and Azotobacter vinelandii. Canadian Journal of Microbiology 33: 435–444. | |
| Sadoff HL, Ellis S and Shimei B (1979) Characterization of Azotobacter vinelandii deoxyribonucleic acid and folded chromosomes. Journal of Bacteriology 138: 871–877. | |
| Further Reading | |
| Baldani JL, Caruso L, Baldani VLD, Goi SR and Dobereiner J (1997) Recent advances in biological nitrogen fixation with non-legume plants. Soil Biology and Biochemistry 29: 911–922. | |
| Yanni YG, Rizk RY, Corich V, Squartini A et al. (1997) Natural endophytic association between Rhizobium leguminosarum bv. Trifolii and rice roots and assessment of its potential to promote rice growth. Plant and Soil 194: 99–114. | |
Copyright © 2000-2013 by John Wiley & Sons, Inc., or related companies. All rights reserved.
