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Table 2 Flagella, curli and pili expression and aggregating behaviour of wild type strain UMR1 and its mutants grown on mica surface over time.

From: Roles of curli, cellulose and BapA in Salmonella biofilm morphology studied by atomic force microscopy

Strain   4 h 8 h 16 h 24 h
UMR1 Flagella ++ +++ +++ ++
  Curli - - +++ +++
  Pili - - - -
  Cell aggregation +/- - ++ +++
MAE52 Flagella ++ +++ +++ ++
  Curli ++ ++ +++ +++
  Pili - - - -
  Cell aggregation ++ +++ +++ +++
MAE51 Flagella ++ +++ +++ ++
  Curli - - - -
  Pili - - - -
  Cell aggregation - - - -
MAE14 Flagella ++ +++ +++ ++
  Curli - - - -
  Pili ++ + + -
  Cell aggregation - - - -
MAE222 Flagella ++ +++ +++ ++
  Curli + + +++ +++
  Pili - + - -
  Cell aggregation - - + +
MAE619 Flagella ++ ++ +++ ++
  Curli - - ++ +++
  Pili + + - -
  Cell aggregation - - ++ +++
  1. - not detected
  2. + detected at low amounts
  3. ++ detected at moderate amounts
  4. +++ detected at high amounts