Table 2. A comparison of the MG density in the LMC and RMC between the control group and the groups fed imidacloprid.
Density1,2,3 | |||
---|---|---|---|
Treatment (conc.4) | LMC | ||
Lip (l)4 | Collar | Lip (r)4 | |
Normal | 1.67 ± 0.43 | 1.46 ± 0.26 | 1.35 ± 0.29 |
Control | 1.91 ± 0.42 | 1.47 ± 0.38 | 1.40 ± 0.39 |
1 ppb | 1.84 ± 0.44 | 1.23 ± 0.53 | 1.14 ± 0.40 |
10 ppb | 1.66 ± 0.49 | 1.35 ± 0.50 | 1.16 ± 0.42 |
100 ppb | 1.64 ± 0.55 | 1.04 ± 0.35* | 1.34 ± 0.46 |
500 ppb | 1.40 ± 0.37* | 0.75 ± 0.42** | 0.95 ± 0.41* |
Treatment (conc.4) | RMC | ||
Lip (r)* | Collar | Lip (l)* | |
Normal | 1.65 ± 0.55 | 1.41 ± 0.30 | 1.26 ± 0.39 |
Control | 1.93 ± 0.37 | 1.43 ± 0.46 | 1.61 ± 0.31 |
1 ppb | 1.90 ± 0.44 | 1.01 ± 0.46* | 1.06 ± 0.45* |
10 ppb | 1.76 ± 0.35 | 1.13 ± 0.24 | 1.25 ± 0.43 |
100 ppb | 1.43 ± 0.56* | 0.86 ± 0.37** | 1.32 ± 0.44 |
500 ppb | 1.29 ± 0.47* | 0.86 ± 0.56** | 1.02 ± 0.47** |
1Data are expressed as the mean ± SD. Bees were collected on the 20th day after eclosion. The regions in the LMC and RMC that are bilaterally symmetrical are shown in the same column.
2MG (micro-glomerulus)/1000 μm3.
3*p < 0.05, **p < 0.01, ***p < 0.001.
4conc., concentration; l, left; r, right.