Table 1 Strains used in this study.

From: Formation of the Francisella tularensis Biofilm is Affected by Cell Surface Glycosylation, Growth Medium, and a Glucan Exopolysaccharide

Strain

Characteristics

LPS/O-Ag

O-Ag capsule

CLC

Attenuated

Source/Reference

F. tularensis LVS (Type B)

Attenuated Live Vaccine Strain

+

+

+

N

Dr. May Chu, CDC

LVS_P10

LVS subcultured 10 consecutive days in broth CDMB

+

+

+++

N

20

LVSΔ1423-22

LVS deficient in CLC due to deletion of  genes encoding for glycosyltransferases

+

+

−

Y

20

WbtIG191V

O-Ag mutant of LVS due to point mutation in wbtI

−

−

+

Y

18

WbtIG191V_P10

WbtIG101V subcultured 10 consecutive days in CDMB

−

−

+++

Y

20

WbtIG191VΔ1423-22

O-Ag and CLC deficient double mutant. WbtIG191V with deletion of FTL_1423 and 1422

−

−

−

Y

20

WbtIG191V+

Complemented strain of respective mutant with O-Ag restored

+

+

+

NDb

18

LVSΔ1423-22+

Complemented strain of respective mutant with CLC restored

+

+

+

ND

20

KY99-3387

Wild Type B strain

+

+

+

N

BEI Resources

KY99-3387_P10

KY99-3387 subcultured 10 consecutive days in broth CDMB

+

+

+++

N

This work

F. novicida U112

Parent F. novicida strain

+

ND

+/−

N

Dr. Karen Elkins, FDA

F. novicida_P10

Strain U112 subcultured 10 consecutive days in CDMB

+

ND

+++

N

21

F. novicidaΔ1212-18

CLC-deficient strain of U112 due to loss of FTN_1212-1218 in CLC glycosylation locus

+

ND

−

Y

21

F. tularensis SchuS4 (Type A)

Virulent Type A strain parent

+

+

+

N

Dr. Mark Wolcott, USAMRIID

F. tularensis TI0902 (Type A)

Highly virulent Type A strain parent

+

+

+

N

62

F. tularensis TIGB03

Chemical mutant of TI0902 lacking O-Ag

−

−

+

Y

25

  1. (+, present; +++, enhanced; −, not present).
  2. aNot determined.