Titlebook: Highlights of Nitrogen Fixation Research; Esperanza Mart?nez,Georgina Hernández Book 1999 Springer Science+Business Media New York 1999 Al

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Phosphate Metabolism in ,,legume symbiosis. However, there is little information about phosphorus acquisition and metabolism in the rhizobia-either free living or bacteroids. Using mutants defective in specific mechanisms of phosphate acquisition or regulation, we are studying phosphorus exchange between the bacteroid and le

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Recent Advances in the Physiology of Drought Stress Effects on Symbiotic N2 Fixation in Soybean,ecting nitrogen fixation in response to drought stress. The interaction of nodule permeability to O. and drought stress on N. fixation was examined in soybean nodules, and led to the overall conclusion that 0. limitation seems to be involved only in the initial stages of water deficit stresses in de

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Flavonoid Enhancement of Sorghum Root Development, the flavonoids applied exogenously (Stenlid, 1961). Flavonoids and Nod factors, widely studied as signals in legume symbioses, also interact with auxin. Some flavonoids act as inhibitors of polar auxin transport (PAT) (Rubery and Jacobs, 1990), and Nod factors can induce an auxin-responsive transcr

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Analysis of Factors Affecting Competition for Nodulation of Legumes by ,,e role some of the catabolic genes play in influencing competition for nodulation, using isogenic mutant strains, has demonstrated that catabolism of rhamnose plays a significant role in the clover symbiosis, whereas catabolism of ribitol and sorbitol does not. Since chemotaxis towards carbon source

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