title: Significance of the rdar and bdar morphotypes in the hydrophobicity and attachment to abiotic surfaces of Salmonella Sofia and other poultry-associated Salmonella serovars.
abstract: OBJECTIVE
  To investigate the relative role of the red dry and rough (rdar) and brown dry and rough (bdar) morphotypes on hydrophobicity and ability to attach to abiotic surfaces of poultry-associated Salmonella strains with a focus on S. Sofia.
  
  
  RESULTS
  Cellulose synthase gene null mutants were constructed in five Salmonella strains converting them from rdar to bdar morphotypes. One S. Sofia null mutant displayed reduced hydrophobicity and attachment to Teflon® relative to its parent strain. The S. Virchow and S. Infantis null mutants attached less well to glass relative to their parent strains.
  
  
  CONCLUSIONS
  The rdar or bdar morphotype may influence S. Sofia persistence but did not explain why bdar strains predominate in this serotype.
  
  
  CONCLUSIONS
  This work provides some insight into why some Salmonella strains survive in poultry environments and may ultimately contribute to their control.
authors: CSIRO Food and Nutritional Sciences, Brisbane, Qld, Australia.
authors: T W R
authors: TW
authors: Chia
authors: T A
authors: TA
authors: McMeekin
authors: N
authors: N
authors: Fegan
authors: G A
authors: GA
authors: Dykes
mesh_terms: D000818:Animals; D018407:Bacterial Physiological Phenomena; D003890:Desiccation; D005516:Food Microbiology; D057927:Hydrophobic and Hydrophilic Interactions; D011138:Polytetrafluoroethylene / Q000737:chemistry; D011200:Poultry / Q000382:microbiology*; D012475:Salmonella / Q000235:genetics / Q000502:physiology*
chemical_list: D011138:Polytetrafluoroethylene