Vera Lúcia Divan Baldani

TL;DR: A new genus is proposed, Herbaspirillum, which describes a very homogeneous group of N2-fixing, microaerobic, motile, vibrioid, gram-negative rod-shaped organisms which formed a veillike pellicle in semisolid medium similar to that of Azospirillum spp.

TL;DR: The ability to colonise the entire plant interior and locate themselves within niches protected from oxygen or other factors make obligate endophytes the most promising group of diazotrophs associated with graminaceous and other non-leguminous plants.

TL;DR: The sugarcane/endophytic diazotroph association is the first efficient N2-fixing system to be discovered associated with any member of the gramineae and should serve as a foundation for the improvement/development of similar N2 -fixing systems in wetland rice and other cereal crops.

TL;DR: The specificity of the infection of maize, wheat and rice roots by N2-fixing Azospirillum spp was studied using pots with unsterilized soil and in two field experiments and results were partially obscured by the unexpectedly high proportion of streptomycin-resistant strains isolated from within the roots of uninoculated plants.

TL;DR: It is found that Herbaspirillum seropedicae seems to be an obligate endophyte which has been isolated from roots, stems, and leaves of a large number of samples of more than 10 different species of the Gramineae family, but only exceptionally from other plants.