Fig. 3.
Constitutive expression of three genes implicated in resistance to Schistosoma mansoni, in haemocytes of Biomphalaria glabrata. (A) Allograft inflammatory factor (aif) is expressed at a significantly higher level in resistant inbred snail lines (P = 0.0456 two-tailed T-test). (B) The gene for the inferred phox subunit of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (infPhox) is expressed at 2.3-fold higher levels in haemocytes from resistant lines compared with susceptible lines of equally low spread cell numbers (P = 0.0261, two-tailed T-test). (C) Peroxiredoxin 1 (prx1) expression is 2.4-fold higher in resistant snails from low spread cell lines (P = 0.0004, two-tailed T-test).