Acetobacter diazotrophicus, an indoleacetic acid producing bacterium isolated from sugarcane cultivars of México

  title={Acetobacter diazotrophicus, an indoleacetic acid producing bacterium isolated from sugarcane cultivars of M{\'e}xico},
  author={Luis Ernesto Fuentes-Ram{\'i}rez and T. Jim{\'e}nez-Salgado and I. R. Abarca-Ocampo and Jesús Caballero-Mellado},
  journal={Plant and Soil},
Thirteen cane cultivars grown on fields in México were sampled to assess the occurrence of Acetobacter diazotrophicus, a recently identified N2-fixing bacterium. Results showed that the isolation frequencies extended over a broad range (1.1 to 67%), likely to be related to the nitrogen fertilization level. The lowest isolation frequencies (1.1 to 2.5%) were obtained from plants growing at high nitrogen doses (275–300 kg ha-1) and the highest values (10–67%) from plants cultivated with 120 kg N… 
High diversity of culturable Burkholderia species associated with sugarcane
The present study confirms the broad environmental and geographic distribution of diazotrophic B. unamae and B. tropica and reveals the riches of Bcc and other Burkholderia species associated with sugarcane field-grown in Mexico, and shows the potential activities in PGP.
Gluconacetobacter diazotrophicus: a natural endophytic diazotroph of Nile Delta sugarcane capable of establishing an endophytic association with wheat
Although Gluconacetobacter inoculation did not stimulate the growth of the cereal plant, the results obtained are particularly interesting because this bacterial species was capable of colonizing the internal tissues of wheat, not considered a natural host until now.
Indole-3-acetic acid biosynthesis is deficient in Gluconacetobacter diazotrophicus strains with mutations in cytochrome c biogenesis genes.
Spectral analysis, heme-associated peroxidase activities, and respiratory activities of the cell membranes revealed that the ccm genes of G. diazotrophicus are involved in cytochrome c biogenesis.
Diversidade de Gluconacetobacter diazotrophicus isolada de plantas de cana-de-açúcar cultivadas no Brasil
Cluster analysis of enzyme-linked immunosorbent assay (ELISA) results suggested that variations were not correlated with the plant species, sugarcane variety, geographic origin, parts of plants, nor with sampling time.
Characterization of Gluconacetobacter diazotrophicus Isolated from Sugarcane (Saccharum officinarum) Cultivated in Upper Egypt
Sugarcane (cv. C 9) cultivated in three governorates of upper Egypt (ElMenia, Assiut, Quena) were sampled to assess the occurrence and characteristic of the endophytic G. diazotrophicus isolated from
Population Dynamics of Gluconacetobacter diazotrophicus in Sugarcane Cultivars and Its Effect on Plant Growth
The results show the importance of the sugarcane variety for the persistence of the plant–bacteria interaction, and it could explain the different rates of BNF estimated among Sugarcane cultivars.
Isolation, partial characterization, and the effect of plant growth-promoting bacteria (PGPB) on micro-propagated sugarcane in vitro
The isolates obtained produced the phytohormone indoleacetic acid (IAA) in pure culture and this IAA production was enhanced in growth medium containing tryptophan and maximum increase in the root and shoot weight over control was observed in the plantlets inoculated with strain SC20.
Inoculation with five diazotrophs alters nitrogen metabolism during the initial growth of sugarcane varieties with contrasting responses to added nitrogen
The varieties utilized N sources differently, and inoculation modified the activity of two N-assimilation enzymes as well as the biomass accumulation, with the highest improvement seen in the low fertility- Adapted variety RB867515; it showed a greater response to inoculation compared with that of the high fertility-adapted variety IACSP95-5000, with an increase in biomass and nutrient accumulation, especially when cultivated under low-N conditions.
Can a N2-fixing Gluconacetobacter diazotrophicus association with sugarcane be achieved?
It is concluded that a N-2-fixing sugarcane - G. diazotrophicus association is not easily achievable, being primarily limited by a lack of infection.


Plant Growth Substances Produced by Azospirillum brasilense and Their Effect on the Growth of Pearl Millet (Pennisetum americanum L.)
Experiments with pure plant hormones showed that gibberellin causes increased production of lateral roots, andIndole acetic acid and indole lactic acid were produced by A. brasilense from tryptophan, and combinations of these substances produced changes in root morphology of pearl millet similar to those produced by inoculated plants.
A new acid-tolerant nitrogen-fixing bacterium associated with sugarcane
A new genus and species are proposed and namedSaccharobacter nitrocaptans, which is an aerobic rod, motile by 1 to 3 lateral flagella, fixes N2 in semisolid media under air but not in liquid media except when a starter dose of N is added.
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.
Biological nitrogen fixation associated with sugar cane
A recent15N dilution/N balance study confirmed that certain sugar cane varieties are capable of obtaining large contributions of nitrogen from plant-associated N2 fixation. It was estimated that up
Characterization of a substance produced by Azospirillum which causes branching of wheat root hairs
Plant growth response to inoculation with Azospirillum, measured in mature plants, increased in the same order, suggesting that both phenomena (root hair branching and plant growth response) have a similar basis.
The influence of epiphytic bacteriae on auxin metabolism
While non-sterile plants (Pisum, Zea) contain considerable amounts of IAA (extraction, thin layer chromatography, biotest), hardly any traceable auxin can be extracted of sterile plants, but sterile plants re-infected with mixtures or single strains of suitable bacteriae again contain considerably amounts of extractable IAA.
Acetobacter diazotrophicus sp. nov., a Nitrogen-Fixing Acetic Acid Bacterium Associated with Sugarcane
Results of deoxyribon nucleic acid (DNA)-ribosomal ribonucleic acid and DNA-DNA hybridizations revealed that nitrogen-fixing bacteria isolated from roots and stems of sugarcane belong to a new species in the genus Acetobacter, for which the name AcetOBacter diazotrophicus sp.
Plant growth substances produced by micro‐organisms of soil and rhizosphere
Summary: Micro-organisms isolated from rhizospheres and rhizoplanes of wheat plants, and from root-free soil, produced growth regulating substances with the properties of gibberellins and
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.