Abstract
The presence of nif genes in bacterial genome, which encode the nitrogenase enzyme that performs nitrogen fixation, is largely accepted as a genotypic hallmark of a plant growth promoting bacteria. The rod shaped, Gram-negative phytopathogen Herbaspirillum rubrisubalbicans has been extensively reported as a nif carrier, capable to fix atmosferic N2. Little is known about H. rubrisubalbica…