NCIt definition : A species of Gram-negative, motile, spirillum-shaped bacteria in the phylum Proteobacteria
that is unable to grow in N2-free medium and lacks the nitrogen-fixing genes nifH
and nifD. H. huttiense is oxidase- and catalase-positive, nitrate reduction negative,
and able to hydrolyse urea.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Herbaspirillum huttiense.;