Effects of Nosema heliothidis on fatty and amino acids in larvae and pupae of the bollworm, Heliothis zea

Abstract

1. 1. Nosema heliothidis had a total fatty acid calorie value of 9.92 × 10 −9/spore; H. zea larvae (4th and 5th instar), male pupae, and female pupae had averages of 0.64, 1.36, and 0.75 calories, respectively. 2. 2. The change in weight of healthy and infected larvae with age was significantly different ( P < 0.01). 3. 3. The change of fatty acid caloric value of healthy and infected H. zea larvae with age was significantly different ( P < 0.01, r = 0.40). 4. 4. The change in fatty add caloric value of healthy and infected male pupae with age was not significantly different, but the change in age was significant at the 99% level. 5. 5. Fresh weight was constant in healthy and infected pupae, but the fatty acid caloric value was significantly different ( P < 0.01). 6. 6. The difference in the fatty acid caloric value of healthy male and female pupae was highly significant ( P < 0.01). The infected male and female showed a significant difference at the 99% level. 7. 7. Amino acids n healthy H. zea were not significantly different from those in infected H. zea.