1.

Heat shock proteins and cell death in hypopharyngeal glands of honeybee (Apis mellifera carnica) after imidacloprid or coumaphos treatment.

Honeybee workers (Apis mellifera carnica Polm.) were treated with imidacloprid or coumaphos. We found significant effects of treatment (pesticide) and treatment duration on hypopharyngeal glands (HPG) acinus diameter (P < 0.05). Differences in the size of acini were evident in all long term treatments. In workers coumaphos triggered an increased level of programmed cell death, and imidacloprid induced extended necrosis. Our results suggest that both pesticides treatments have an influence on the reduced size of HPG and also on the extended expression of cell death.

COBISS.SI-ID: 3171432

2.

Exposure to pesticides at sublethal level and their distribution within a honey bee (Apis mellifera) colony.

The aim of the experiments was to determine potential sub-lethal effects on individual honey bees or brood when bees are exposed to pesticides in the field. We have performed experiments where honey bee colonies were exposed to pesticides applied in agriculture and within bee hives. Samples of bee workers, larvae and royal jelly were analyzed quantified.

COBISS.SI-ID: 3360616