This self-contained volume covers fundamental and applied aspects of nitrogen-fixation research. The book describes milestones in the discovery of the associative and endophytic nitrogen-fixing bacteria found involved with cereal crops, forage grasses, and sugar cane. It provides a comprehensive overview of their phylogeny, physiology, and genetics as well as of the biology of their association with their host plants, including tools for in situ localization and population-dynamics analysis. Also included are chapters describing the functions required for a bacterium to be competent and competitive in the rhizosphere, and analysis of associations of cyanobacteria with fungi, diatoms, bryophytes, cycads, Azolla, and Gunnera.These two new Burkholderia species differ in their use of several carbon sources as well as their colony morphology on a medium containing mannitol at pH 5.5. Genetically, they can be differentiated by the use of primers based on the 16S- rDNA variable sequence (Reis et al., unpublished results). The endophytic occurrence of these diazotrophs may now explain the high contributions that sugarcane can obtain from BNF (Lima et al., 1987; Urquiaga et al., 1992; Boddey et al., 2001).
Title | : | Associative and Endophytic Nitrogen-fixing Bacteria and Cyanobacterial Associations |
Author | : | Claudine Elmerich, William E. Newton |
Publisher | : | Springer Science & Business Media - 2007-05-19 |
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