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Table 1 Phylogenetic identification and biosurfactant phenotypic screening results for each bacterial strain

From: Biosynthesis of rhamnolipid by a Marinobacter species expands the paradigm of biosurfactant synthesis to a new genus of the marine microflora

Strain Origin BLASTn identification (against NCBI database) GeneBank accession number Sequence similarity (%) Phenotypic screening
ST (mN m−1)a EI24 h (%)b
MCTG106 Coastal surface water, Oregon, Washington State, USA Marinobacter sp. NP1383C-30R MK894600 100 54.63 ± 3.5 40 ± 1.5
MCTG4b Laboratory culture of Thalassiosira weissflogii strain CCMP 1052 isolated from Oslo Fjord, Norway Marinobacter sp. Set72 MK894835 99 38.5 ± 0.6 42 ± 2.0
MCTG167 Phytoplankton net tow, Oban, UK Marinobacter sp. T23 MK894854 100 61.55 ± 0.1 N/A
MCTG161(2c3) Phytoplankton net tow, Oban, UK Marinobacter adhaerens HP15 MK894872 99 60.0 ± 0.5 45 ± 2.0
MCTG107b Coastal surface water, Oregon, Washington State, USA Marinobacter sp. R-28768 MK578516 100 31.0 ± 0.5 40 ± 1.8
  1. Bacteria were identified by 16S rDNA gene sequencing. Surface tension values (mN m−1) and EI24 (%) were obtained from cell-free supernatant samples of cultures incubated for 96 h
  2. aST and bEI 24 h of sterile ZM/1 medium was 58 mNm−1 and 0%, respectively