Research Progress and Perspectives of Nitrogen Fixing Bacterium, Gluconacetobacter diazotrophicus, in Monocot Plants

Table 2

General characteristics of Gluconacetobacter diazotrophicus.

Characteristics	G. diazotrophicus
Gram reaction	−
Dark brown colonies on potato agar with 10% sugar	+
Dark orange colonies on LGIP medium with 10% sugar	+
Motility	+
N2 fixation	+
NO3—reduction	−
N2 fixation with NO3^−	+
Catalase	+
Oxidase	−
Growth on carbon sources
Sucrose*	+
Glucose	+
Sorbitol	+
Galactose	+
Xylose	+
Ethanol	+
Sodium acetate	+
Glycerol	+
Arabinose	+
Raffinose	+
meso-Erythritol	+
Fructose	+
Maltose	+
Rhamnose	+
Trehalose	+
Cellobiose	+
Melibiose	+
Growth on L-amino acids in the presence of sorbitol as carbon source
L-cysteine	+
L-glutamine	+
L-proline	+
L-tryptophan	+
L-aspartic acid	+

+: positive; −: negative.
*Only some strains were positive.
[18, 19, 30–32].