Table 4. Comparison of metabolic phenotypes induced by three weeks of diapause in four strains of D. melanogaster: Canton S, dilp5 and dilp2-3 mutants and w1118.
Parameter | w1118 | dilp5 | dilp2-3 |
Food intake (ng/fly/6 h) | N.S. | N.S. | N.S. |
Fly mass (mg) | +7%* | N.S. | −3%* |
Glucose in hemolymph (mM) | +21%** | N.S. | N.S. |
Trehalose in hemolymph (mM) | N.S. | N.S. | N.S. |
Protein in hemolymph (µg/µL) | +14%** | N.S. | N.S. |
Glucose in body (µg/mgwm) | N.S. | −15%*** | N.S. |
Trehalose in body (µg/mgwm) | +36%* | −52%* | +64%* |
Glycogen amount (µg/mgwm) | N.S. | +25%*** | N.S. |
TAG content (µg/mgwm) | N.S. | −62%** | N.S. |
Protein in body (µg/mgwm) | −48%*** | −18%*** | −20%*** |
Data are obtained from 3–6 h old virgin flies exposed to three weeks of diapause conditions (11°C and 10L:14D). This time point was chosen since the strongest effect on ovarian development was seen. The table shows significant differences to the wild type Canton S (*p<0.05, **p<0.01, ***p<0.001 as assessed by by unpaired Students' t-test. N.S. – values are not significantly different).