Analysis of Nitrogen Fixation and Regulatory Genes in the Sugarcane Endophyte Acetobacter Diazotrophicus

Lee, S.; Sevilla, Myrna; Meletzus, Dietmar; Texeira, K.; Baldani, Ivo; Kennedy, Christina

doi:10.1007/978-1-4615-4795-2_43

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…In Russia, Kostychev et al (1926) reported strong positive effects of soil inoculation with Azotobacter on the growth of tobacco and accumulation of soil nitrogen. This Acetobacter diazotrophicus Sugarcane Endophytic Cavalcante and Döbereiner (1988); Lee et al . (1996) Alcaligenes faecalis Rice Endophytic Vermeiren et al (1996) Aquaspirillum fasciculus Water Associative Giller and Wilson (1991) Aquaspirillum perigrenum Water Associative Giller and Wilson (1991) Rhodopseudomonas Serratia marcescens Rice Associative Rosales et al (1993) led to a strong tradition of inoculation with this genus in Russia extending over decades, with many apparent confirmations of positive ANF.…”

Section: Saprophytic Biological Nitrogen Fixation -Inoculation With Amentioning

confidence: 98%

The current and potential contribution of asymbiotic nitrogen fixation to nitrogen requirements on farms: a review

Kennedy

Islam²

2001

Aust. J. Exp. Agric.

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Significant levels of biological nitrogen fixation from sources other than nodulated legumes have become a tantalizing prospect for decades. Since the benefit to agriculture of nitrogen fixation from nodulated legumes was established, there have been widespread efforts to promote the use of various asymbiotic diazotrophic bacteria to fix extra nitrogen in soil. Despite much optimism by scientists and farmers, this prospect remains to be realised. Recently, the prospect has been pursued with renewed enthusiasm and several commercialised products have appeared. What are the reasons for this fresh enthusiasm? Are the new products based on realistic assessments of their biological potential? Why has it taken so long to advance to a stage where there is still only limited evidence that verifies hope becoming reality?This review assesses the current contribution from asymbiotic nitrogen fixation and re-assesses the prospects for greater contributions from this source. Among the many aspects of this multi-faceted subject that will be considered are: (i) the range of free-living microbial strains currently contributing to signficant asymbiotic nitrogen fixation; (ii) the significance of nitrogen-fixing microbes naturally associated with plants; (iii) the significance of endophytic systems and their role in sugarcane and other Gramineae; (iv) the possibility of extending this range by introducing new strains or discovering new systems capable of contributing additional nitrogen fixation.The case will be made that conditions providing a sustainable contribution for more than a short time are usually missing in such systems so that spontaneous biological nitrogen fixation is usually transient. It will be argued further that if all the positive factors controlling spontaneity at the biothermodynamic level are exploited, significant biological nitrogen fixation may soon be achieved in some of these systems on farms.

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Section: Saprophytic Biological Nitrogen Fixation -Inoculation With Amentioning

confidence: 98%

The current and potential contribution of asymbiotic nitrogen fixation to nitrogen requirements on farms: a review

Kennedy

Islam²

2001

Aust. J. Exp. Agric.

View full text Add to dashboard Cite

show abstract

Analysis of Nitrogen Fixation and Regulatory Genes in the Sugarcane Endophyte Acetobacter Diazotrophicus

Cited by 1 publication

References 6 publications

The current and potential contribution of asymbiotic nitrogen fixation to nitrogen requirements on farms: a review

The current and potential contribution of asymbiotic nitrogen fixation to nitrogen requirements on farms: a review

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