Biochemical effects of high intensity constant magnetic fields on worker honey bees.

Hemolymph samples from adult bees that had completed their pupal development and emergence in a 7 Tesla field contained a lower percentage of glucose than controls, indicating that trehalase enzyme activity in honey bees is reduced in strong magnetic fields. Significantly more phospholipids were found in the intestines of magnetic field-exposed bees than in controls. No significant differences were found for fatty acids, triacylglycerols, or steroids.