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- W4252482488 abstract "Pro.li.no' bo.rus . L. n. prolina the amino acid proline; Gr. adj. boros voracious M.L. masc. n. Prolinoborus (bacteria) that readily consume proline. Proteobacteria / Betaproteobacteria / Neisseriales / Neisseriaceae / Prolinoborus Straight rods , 0 . 7–0 . 9 μ m in width . Cells are approximately 5–10 µm in length, but old cultures may contain cells up to 42 µm long. Curved or S‐shaped variants have been reported to occur in one strain after prolonged serial transfer. A polar membrane underlies the cytoplasmic membrane. Intracellular poly ‐β‐ hydroxybutyrate granules are present in the rods. Extensive conversion of the rod‐shaped cells to round forms (“ coccoid bodies ”) occurs in older cultures. Upon initial isolation , the cells form highly viscous flocs , within which the cells swim steadily in straight lines . The floc‐forming ability is gradually lost during subsequent serial transfers, and the growth eventually becomes turbid. Cells have bipolar flagellar fascicles composed of up to 11 flagella . The fascicles can be seen clearly by dark‐field microscopy and show unusual and distinctive behavior when the cells are suspended in ordinary, nonviscous media: helical wave propagation with waves progressing from base to tip, an ability to coil up like springs, and basal bending accompanied by a change in wavelength. In such nonviscous media the cells do not swim ; instead , they exhibit an ineffectual “ floundering about ” movement ; however, when they are suspended in a medium of high viscosity (10–200 centipoise, obtained by the use of agents such as DNA or methylcellulose “400 centipoise”), they swim steadily in straight lines. Optimal temperature, 30°C; no growth at 20°C or 40°C. Catalase and oxidase positive . Carbohydrates are not catabolized . Pyruvate and proline are the most effective sole carbon sources. Proline can be used a sole source of nitrogen and carbon . Nitrogenase activity (ability to reduce acetylene) occurs under microaerobic conditions . Habitat: pond water. The mol % G + C of the DNA is : 62–65. Type species : Prolinoborus fasciculus (Strength, Isani, Linn, Williams, Vandermolen, Laughon and Krieg 1976) Pot, Willems, Gillis and De Ley 1992b, 53 ( Aquaspirillum fasciculus Strength, Isani, Linn, Williams, Vandermolen, Laughon and Krieg 1976, 266.)" @default.
- W4252482488 created "2022-05-12" @default.
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- W4252482488 date "2015-09-14" @default.
- W4252482488 modified "2023-10-12" @default.
- W4252482488 title "<i>Prolinoborus</i>" @default.
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- W4252482488 doi "https://doi.org/10.1002/9781118960608.gbm00982" @default.
- W4252482488 hasPublicationYear "2015" @default.
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