Azospirillum lipoferum and Pyricularia oryzae laccases were compared, using several substrates and inhibitors. Sixteen phenolic or nonphenolic compounds were found to be substrates of both fungal and bacterial laccases. In the presence of different phenol oxidase inhibitors, P. oryzae and A. lipoferum laccase activities had similar properties.

this study in order to evaluate the possibility of improving the root growth of lentil with use mycorrhiza symbiosis with cooperation azospirillum bacteria under rainfed conditions was conducted. a tri-factorial experiment was organized on the basis of randomized complete block design with four replicates, in which factor m was the mycorrhizal inoculums in three levels including (not use, use m...

The N2 fixing bacteria Klebsiella pneumoniae, Azospirillum brasilense, Rhodopseudomonas sphaeroides and Rhodospirillum rubrum, but not Azotobacter vinelandii accumulate the glutamine analogue methionine sulfoximine in the cell. In the accumulating cells methionine sulfoximine inhibits ammonium transport. Accumulation and inhibition are prevented by glutamine.

Sequencing the glnA genes of two chemically induced Azospirillum brasilense glutamine synthetase mutants revealed an Arg-->Cys mutation, corresponding to the glutamate binding site, in one mutant and an Asp-->Asn mutation, corresponding to the ammonium binding site, in the second mutant. The phenotypic changes in these mutants are discussed in relation to their genotypes.

The objective of this study was to evaluate sorghum hybrids associated or not with Azospirillum brasilense and nitrogen fertilization (N) during planting on the yield, fermentative profile, nutritional value respective silages. Five (Volumax, 201813B, 201814B, 201709B, BRS716) were evaluated three strategies using urea (100 kg ha−1 N) brasilense, N)/A. in association. A randomized block design ...

The Azospirillum brasilense ATCC 29145 gene coding for beta-lactamase was cloned in Escherichia coli. The gene was expressed in E. coli from its own promoter as a 30-kilodalton protein, conferring resistance to high levels of beta-lactam antibiotics. The DNA sequence containing the beta-lactamase gene was found to be highly amplified in the Azospirillum genome, scattered in the chromosomal as w...

The root system of the plant is essential for taking up water and nutrients, serves as an anchor organ where plant-microorganism interaction takes place. When Plant Growth Promoting Rhizobacteria (PGPR) Azospirillum brasilense Sp245 colonizes plants, it halts growth primary stimulates development lateral roots hairs which support vegetative, green biomass. Target Rapamycin (TOR) a highly conser...

HIGHLIGHTS Azospirillum brasilense stimulates root growth in maize under water deficit. Maize inoculated with A. shows greater photosynthesis drought conditions. Under deficit, plants showed use efficiency (WUE).