Living in a Puddle of Mud: Isolation and Characterization of Two Novel Caulobacteraceae Strains Brevundimonas pondensis sp. nov. and Brevundimonas goettingensis sp. nov
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Titel:
Living in a Puddle of Mud: Isolation and Characterization of Two Novel Caulobacteraceae Strains Brevundimonas pondensis sp. nov. and Brevundimonas goettingensis sp. nov
Beschreibung:
<jats:p>Brevundimonas is a genus of freshwater bacteria belonging to the family Caulobacteraceae. The present study describes two novel species of the genus Brevundimonas (LVF1T and LVF2T). Both were genomically, morphologically, and physiologically characterized. Average nucleotide identity analysis revealed both are unique among known Brevundimonas strains. In silico and additional ProphageSeq analyses resulted in two prophages in the LVF1T genome and a remnant prophage in the LVF2T genome. Bacterial LVF1T cells form an elliptical morphotype, in average 1 µm in length and 0.46 µm in width, with a single flagellum. LVF2T revealed motile cells approximately 1.6 µm in length and 0.6 µm in width with a single flagellum, and sessile cell types 1.3 µm in length and 0.6 µm in width. Both are Gram-negative, aerobic, have optimal growth at 30 °C (up to 0.5 to 1% NaCl). Both are resistant towards erythromycin, meropenem, streptomycin, tetracycline and vancomycin. Anaerobic growth was observed after 14 days for LVF1T only. For LVF1T the name Brevundimonas pondensis sp. nov. and for LVF2T the name Brevundimonas goettingensis sp. nov. are proposed. Type strains are LVF1T (=DSM 112304T = CCUG 74982T = LMG 32096T) and LVF2T (=DSM 112305T = CCUG 74983T = LMG 32097T).</jats:p>