| Cross Index | Asticcacaulis |
| SuperSet | Prokaryote, Eubacteria Budding and/or Appendaged Bacteria |
| Compare | Prosthecate Bacteria: Ancalomicrobium adetum Asticcacaulis
Caulobacter Dichotomicrobium thermohalophilum,
Filomicrobium fusiforme,
Hirschia baltica,
Hyphomicrobium Hyphomonas, Labrys monachus , Pedomicrobium, Prosthecobacter fusiformis,
Prosthecomicrobium,
Stella, Verrucomicrobium spinosum Non Prosthecate Bacteria Angulomicrobium tetraedrale Blastobacter Ensifer adherans,Gallionella ferrunginea Gemmiger formicilis, Nevskia ramosa, Seliberia stellata Planctomycetales Planctomyces, Gemmata obscuriglobus , Isosphaera pallida, Pirelulla |
| Contrast | Archaea |
| Subset |
| Morphology | Asticcacaulis |
| CELLULAR |
| Staining | Gram-negative |
| Morphology | Cells rod-shaped, 0.5-0.7 x 1.3 um; poles blunt or gently rounded |
| Motility | Subpolar, single flagellum in motile stage |
| Specialized structures | . Some cells in any
growing population with one sub-polar or one or two
lateral prosthecae. Each prostheca includes outer
membrane, peptidoglycan, cell membrane, and a core
sometimes observed to be occupied in part by membranes,
but through most of its length, other cytoplasmic
components cannot be discerned. Beyond the cell-prostheca juncture, prostheca diameter is constant, 0.10-0.15 um. Other cells in the same population bear a single, subpolar flagellum. Each type of cell bears a small mass of adhesive material, the holdfast, at one pole; the holdfast site is not coincident with the site of the flagellum or of the prostheca(e). Binary fission occurs by septation, typically resulting in the production of a longer, prosthecate cell and a shorter, flagellated call. Fission may occur in cells lacking prosthecae. In both instances, cell division is unequal.. |
| Division |
| COLONIAL |
| Solid surface | Colonies circular, convex, glistening, with smooth margin, butyrous in texture, and colourless |
| Liquid | In unagitated liquid cultures, cells accumulate as a surface film or a heavier pellicle and develop as a ring of growth on the vessel wall at or just below the air-liquid interface. Growth in agitated liquid cultures is evenly dispersed |
| Growth Parameters | Asticcacaulis |
| PHYSIOLOGICAL |
| Tropism | Chemoorganotrophic and oligotrophic |
| Oxygen | Strictly respiratory and aerobic by may be somewhat O2 sensitive; only O2 serves as terminal electron acceptor for growth, although nitrate may be reduced to nitrite |
| pH | Optimal pH near neutrality: 6-9 tolerated |
| Temperature | Optimal temperature for growth: 20-25`C; tolerated range for growth: 15-35`C. |
| Requirements | grow readily in media such as peptone-yeast extract below 0.1% (w/v) organic material and may not grow in standard nutrient broth with 0.8% (w/v) organic solutes. All isolates require biotin as the only organic micro-nutrient. |
| Products | During growth, may produce acid from sugars but do not produce gas Each of glucose, fructose, maltose and lactose is utilized by all isolates as the sole carbon source. |
| Enzymes | |
| Unique features | .. Maximum specific rates of exponential growth: 0.23-0.57 h-1. |
| ENVIRONMENTAL |
| Habitat | |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Asticcacaulis |
| G+C Mol % | 55-61 (Bd, Tm) |
| Reference | Asticcacaulis |
| First citation | Poindexter, J.S. 1964. Biological properties and classification of the Caulobacter group. Bacteriol. Rev 28: 231-295 |
| The Prokaryotes | |
| Bergey's Systematatic | p 1939 J.S. Pointdexter |
| Bergey's Determinative | p 459 |
| References |