A study conducted by University of Utah genetics researchers shows that the steroid hormone ecdysone controls an important phase in the embryonic development of insects, providing an unexpected ...

Scanning electron microscope image showing pearl-like calcium granules (PCGs) accumulated within the lumen of the distal region of the Malpighian tubule in the fruit fly larva. Numerous PCGs, each ...

THE traditional method of determining whether an endocrine gland in an insect is active or inactive is to see whether it produces a hormonal effect when it is transplanted into a suitable test insect.

IT is now well recognized that growth and moulting in the insect are initiated by a hormone produced in the neurosecretory cells of the brain. This brain factor activates the thoracic gland, which is ...

A study conducted by University of Utah genetics researchers shows that the steroid hormone ecdysone controls an important phase in the embryonic development of insects, providing an unexpected ...