Fig 5. Attachment capability to an abiotic surface increases over time.

(A) Ratio of crystal violet absorbance in arbitrary units over cell growth measured by OD₆₀₀. (B) Cells of different ages were diluted to the same cell density prior to quantifying crystal violet absorbance of attached cells. Error bars indicate standard deviation of at least two biological replicates. Note: the 10-fold difference in crystal violet absorbance values between (A) and (B) is due to different incubation times during the attachment assay. See Methods for details.