Staining Gram-negative and non-acid-fastCells stain with carbol fuchsin but stain only feebly with aqueous aniline dyes
Morphology Cells 0.3-1.2 x 1-3 um; rod-shaped with pointed ends, or oval, egg- or bean-shaped; produce monopolar or bipolar filamentous outgrowths (hyphae or prosthecae) of varying length and 0.2-0.3 um in diameter
Motility motile Motility is lost soon after swarmer cell liberation and/or attachment. Older cultures nearly lack motile swarmer cells
Specialized structures ,The hyphae are not septate, but hyphal cytoplasmic membranes show conspicuous constrictions. Hyphae may be truly branched; secondary branches are rare.. Do not form spores. Multiplication: daughter cell formation by a budding process at one hyphal tip at a time (mature buds become motile as swarmers, break off, and may attach themselves to surfaces or other cells to form clumps or rosettes.. Poly-B- hydroxybutyrate is stored by most cells, usually at a distinct cell pole.