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Figure 5


Fig. 5. Hemolymph ecdysteroid titers in a single larva (striped bars) and ecdysteroid secretion by a single set of thorax and abdomen (gray bars) in groups of 36 h old fourth instar A. aegypti given different periods of time to feed or not. Newly molted fourth instars were either deprived of food for 36 h, or fed for 12 h or 36 h prior to tissue collection at 36 h for the ecdysteroid bioassay. Values represent least square means ± s.e.m.; N=12. For both ecdysteroid secretion and hemolymph values, columns with different letters are significantly different from each other (Tukey–Kramer HSD, P≥0.05). NM, newly molted fourth instars never given access to food. No bar indicates that the s.e.m. is smaller than column scale.





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