A new acid-tolerant nitrogen-fixing bacterium associated with sugarcane

  title={A new acid-tolerant nitrogen-fixing bacterium associated with sugarcane},
  author={V. A. Cavalcante and Johanna Dobereiner},
  journal={Plant and Soil},
During surveys of bacteria possibly responsible for N2 fixation in sugarcane, root and stem samples were collected in four sugarcane-growing regions in Brazil. A new microaerobic N2-fixing bacterium was isolated from most samples of washed roots and stems from all regions. Isolation procedures were based on semisolid diluted sugarcane juice medium followed by replication to N-free 10% sugar medium acidified with acetic acid to pH 4.5. The new bacterium is an aerobic rod, motile by 1 to 3… 
Characteristics of nitrogen fixation and nitrogen release from diazotrophic endophytes isolated from sugarcane ( Saccharum officinarum L . ) stems
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Isolation and characterization of salt-tolerant nitrogen-fixing microorganisms from food
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Can a N2-fixing Gluconacetobacter diazotrophicus association with sugarcane be achieved?
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Inoculation with five diazotrophs alters nitrogen metabolism during the initial growth of sugarcane varieties with contrasting responses to added nitrogen
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A new species of Burkholderia isolated from sugarcane roots promotes plant growth
It is proposed that culture‐independent identification and isolation of bacteria that are enriched in rhizosphere and roots, followed by systematic testing and confirming their growth‐promoting capacity, is a necessary step towards designing effective microbial inoculants.
Nitrogen Fixation and Translocation in Young Sugarcane (Saccharum officinarum L.) Plants Associated with Endophytic Nitrogen-Fixing Bacteria.
The tracer (15)N(2) was used to investigate sites of N( 2) fixation and the possible translocation of the fixed N in sugarcane plants, suggesting that the cutting played a role in supplying N for growth.
Isolation and nitrogen fixing efficiency of Gluconacetobacter diazotrophicus associated with sugarcane: A review
The present review was focused on the isolation and nitrogen-fixing efficiency of Gluconacetobacter diazotrophicus associated with sugarcane crop. Gluconacetobacter diazotrophicus has a long-standing
Biological Nitrogen Fixation is not a Major Contributor to the Nitrogen Demand of a Commercially Grown South African Sugarcane Cultivar
No evidence was found for significant N2-fixation or nitrogenase activity in field-grown or glasshouse-grown plants using 15N incorporation measurements and acetylene reduction assays, indicating that the plants did not rely extensively on biological nitrogen fixation.
Non-nodular Endophytic Bacterial Symbiosis and the Nitrogen Fixation of Gluconacetobacter diazotrophicus
Every method used for demonstrating nitrogen fixation in rhizobia have been used and field trials demonstrate yield increases and the potential to reduce nitrogen fertilizer use, meeting both food security and climate smart agriculture needs.


Isolation and identification of N2-fixing bacteria associated with sugar cane (Saccharum sp.)
Acetylene-reducing bacteria isolated from the setts and roots of two sugar cane varieties propagated aseptically from stem cuttings and roots were identified using a computer-assisted scheme based on 75 biochemical tests, suggesting that the root is the site of bacterial multiplication.
Azotobacter paspali sp. n., uma bactéria fixadora de nitrogênio na rizosfera de Paspalum
A new nitrogen fixing bacteria was found to occur in large numbers on the root surface (rhizoplan) and less abundant in the rizosphere of Paspalum notatum and PaspALum plicatum and was placed in the genus Azotobacter.
Bacillus azotofixans sp. nov. a Nitrogen-Fixing Species from Brazilian Soils and Grass Roots
A new species, Bacillus azotofixans, is described. This taxon is based upon 16 soil and root-associated strains that exhibit acetylene-reducing ability and nitrogen-fixing Bacillus sp. strain Hino.
Morphological characteristics, reserve substance formation, and ecological aspects of the distribution of Beijerinckia are discussed. Beijerinckia cells are single or bicellular due to cross wall
Nitrogen-fixing bacteria of the genusBeijerinckia Derx in the rhizosphere of sugar cane
Summary and ConclusionsThe rhizosphere effect of sugar cane on nitrogen fixing bacteria of the genusBeijerinckia Derx was studied under field conditions, during two growing periods of the cane.
Nitrogen-fixing bacteria of the genusBeijerinckia Derx in the rhizosphere of sugar cane
Bacteria, actinomyces, and fungi developing on egg-albumin agar decreased in the rhizosphere of sugar cane, while counts ofBeijerinckia showed an increase in this nitrogen fixer.
Nitrogenase activity in the rhizosphere of sugar cane and some other tropical grasses
Roots of sugar cane had considerable nitrogenase activity and produced up to 5 n moles ethylene/h/g root by the reduction of acetylene, and Nitrogenase activity was also associated with roots of Panicum maximum,ennisetum purpureum andCymbopogon citratus.
Frateuria, a New Genus for “Acetobacter aurantius”
The properties and taxonomic positions of 11 strains previously identified as members of “Acetobacter aurantius Kondo and Ameyama” (this name is not on the Approved Lists) were reexamined, and a new genus is proposed, Frateuria gen. nov.