Figure 7
From: Hessian fly larval feeding triggers enhanced polyamine levels in susceptible but not resistant wheat
Hessian fly larval responses to inhibition of wheat ODC activity with Difluoromethylornithine (DFMO). a) Length of biotype L larvae (measured 7 DAH) feeding on susceptible Newton wheat plants that were pretreated with 1, 3 and 5 mM concentrations of DFMO to block wheat ODC activity. Data are represented as mean larval length ± SE for the respective number of larvae (given above each bar) measured for each treatment. Treatments showing statistically significant (p < 0.05) differences between DFMO-treated and untreated plants (0 mM DFMO) are indicated with ‘*’. b) Representative photomicrographs of biotype L Hessian fly larvae from each of the treatments. c) Mean percentage ± SE for the respective number (given above each bar) of insects for each treatment in larval (solid filled bars) or pupal stages (striped bars) on treated susceptible Newton wheat plants 18 DAH. Treatments showing statistically significant (p < 0.05) differences from the control (0 mM DFMO) are indicated with ‘*’.