During stationary phase, Beijerinckia derxii shows nitrogenase activity concomitant with the release and accumulation of nitrogenated substances

Miyasaka, Natália Reiko Sato; Thuler, Daniela Strauss; Floh, Eny Iochevet Segal; Handro, Walter; Toledo, Mariana Braga Duarte; Gagioti, S; Barbosa, Heloíza Ramos

doi:10.1078/0944-5013-00209

Cited by 11 publications

(8 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Inoculation of rice seeds with Beijerinckia showed that this genus is able to multiply in the soil, establishing itself in large numbers and reducing the number of other competing microorganisms (Döbereiner and Ruschel 1961). It has been observed (Miyasaka et al 2003) that B. derxii maintains an increasing nitrogenase-specific activity during the stationary growth phase. To verify the destination of the nitrogen fixed during this phase, intra-and extracellular nitrogenated contents were analyzed.…”

Section: Applicationmentioning

confidence: 95%

“…This suggested that B. derxii contributes to the environment by both releasing nitrogenated substances and accumulating substances capable of being consumed after its death. Moreover, the ability of B. derxii to release certain plant growth regulators (indoleacetic acid, ethylene and polyamines) and amino acids into the growth medium has also been addressed (Thuler et al 2003). The production of those substances was compared using cultures in which nitrogenase was active (N-free medium) and cultures in which nitrogenase was repressed (combined-N cultures) and with and without agitation.…”

Section: Applicationmentioning

confidence: 99%

“…Beijerinckia have received attention due to their plant growthpromoting properties (Miyasaka et al 2003;Thuler et al 2003) and for their abundant production of exopolysaccharide with potential biotechnological uses (Scamparini et al 1997).…”

Section: Applicationmentioning

confidence: 99%

See 2 more Smart Citations

The Family Beijerinckiaceae

Marı́n

Arahal

2014

The Prokaryotes

View full text Add to dashboard Cite

Section: Applicationmentioning

confidence: 95%

Section: Applicationmentioning

confidence: 99%

See 1 more Smart Citation

The Family Beijerinckiaceae

Marı́n

Arahal

2014

The Prokaryotes

View full text Add to dashboard Cite

“…Because endophytic diazotrophs have only been observed in intercellular spaces, vascular tissue, aerenchyma and dead cells and not within living host cells, James [45] suggested that N transfer from these organisms is likely to be dependent on their death and release of fixed N. Transfer to plants of N fixed by diazotrophs or N contained in non-fixing microbial biomass in the soil or rhizosphere is also likely to be dependent on the death of these bacteria and release of ammonium or amino acids [151,152], although excretion of nitrogenous substances during bacterial growth can also occur (e.g. Beijerinckia derxii [153]; cyanobacteria [154]).…”

Section: Transfer Of Fixed N From Diazotrophs To Plants and Other Orgmentioning

confidence: 99%

Enhancing Non-symbiotic N2 Fixation in Agriculture

Roper¹,

Gupta²

2016

TOASJ

View full text Add to dashboard Cite

Much of the demand for nitrogen (N) in cereal cropping systems is met by using N fertilisers, but the cost of production is increasing and there are also environmental concerns. This has led to a growing interest in exploring other sources of N such as biological N 2 fixation. Non-symbiotic N 2 fixation (by free-living bacteria in soils or associated with the rhizosphere) has the potential to meet some of this need especially in the lower input cropping systems worldwide. There has been considerable research on nonsymbiotic N 2 fixation, but still there is much argument about the amount of N that can potentially be fixed by this process largely due to shortcomings of indirect measurements, however isotope-based direct methods indicate agronomically significant amounts of N 2 fixation both in annual crop and perennial grass systems. New molecular technologies offer opportunities to increase our understanding of N 2 -fixing microbial communities (many of them non-culturable) and the molecular mechanisms of non-symbiotic N 2 fixation. This knowledge should assist the development of new plant-diazotrophic combinations for specific environments and more sustainable exploitation of N 2 -fixing bacteria as inoculants for agriculture. Whilst the ultimate goal might be to introduce nitrogenase genes into significant non-leguminous crop plants, it may be more realistic in the shorter-term to better synchronise plant-microbe interactions to enhance N 2 fixation when the N needs of the plant are greatest. The review explores possibilities to maximise potential N inputs from non-symbiotic N 2 fixation through improved management practices, identification of better performing microbial strains and their successful inoculation in the field, and plant based solutions.

show abstract

“…Esta bactéria é capaz de excretar grande variedade de aminoácidos assim como substâncias nitrogenadas reguladoras do crescimento vegetal (poliaminas e ácido 3-indol acético) ou não nitrogenadas [etileno] (THULER et al, 2003a). Também foi demonstrada a capacidade de armazenamento de substâncias nitrogenadas (MIYASAKA et al, 2003).…”

Section: Rizobactérias Promotoras De Crescimento De Plantasunclassified

Rizobactérias promotoras de crescimento vegetal isoladas de cana-de-açúcar sob fertilização orgânica e/ou convencional.

Oliveira¹

View full text Add to dashboard Cite

In this work we evaluated the possible effect of fertilization (organic and conventional) on the rhizobacteria physiology from the sugarcane. For that, we selected five rhizobacterial genera (Beijerinckia, Burkholderia, Enterobacter, Klebsiella and Pseudomonas) prevalent in sugarcane crops and described as plant growth promoters. The selected bacteria were isolated and identified by biochemical tests and by sequence analysis of the 16S rDNA gene, and the parameters investigated were: capacity of acetylene reduction, phytohormones production (IAA and ethylene), capacity of phosphate solubilization, amino acid release, and antifungal activity. The selected rhizobacteria showed their potential as plant growth promoters. The Burkholderia strains showed the better results in phosphate solubilization and antifungal activity. The Pseudomonas were prominent in the production of ethylene and Beijerinckia strains showed a greater N 2 fixation capacity. Enterobacter, Klebsiella and Pseudomonas strains were the better IAA producers. In vitro, the influence of the fertilization (treatment of the crop) was not detected, except for the inorganic phosphate solubilization. Our results showed that bacteria isolated from plants submitted to organic treatment, where phosphate was in excess, did not show potential for inorganic phosphate solubilization. However, in vivo it is possible that organic fertilization, together with the rhizosphere, improves and controls the growth promoting bacteria traits. Our results evidenced the great potential of these bacteria as natural tools for the culture sustainability, which it aims at to reduce costs, to promote efficiency and increase of the productivity.

show abstract

During stationary phase, Beijerinckia derxii shows nitrogenase activity concomitant with the release and accumulation of nitrogenated substances

Cited by 11 publications

References 23 publications

The Family Beijerinckiaceae

The Family Beijerinckiaceae

Enhancing Non-symbiotic N2 Fixation in Agriculture

Rizobactérias promotoras de crescimento vegetal isoladas de cana-de-açúcar sob fertilização orgânica e/ou convencional.

Contact Info

Product

Resources

About