ⓘ Prothoracic gland

                                     

ⓘ Prothoracic gland

The prothoracic glands are either of a pair of endocrine glands located in the prothorax of certain insects that regulate molting. They have an ectodermal origin and secrete ecdysteroids, such as ecdysone and 20-hydroxyecdysone.

                                     
  • to environmental stimuli and as its name implies PTTH acts on the prothoracic glands which respond by releasing molting hormone an ecdysteroid into
  • sad and shade genes. The spook gene Cyp307a1 is expressed in the prothoracic gland and in conjunction with the gene product of spookier Cyp307a2
  • bug, Rhodnius prolixus, secrete a crucial hormone that triggers the prothoracic gland to release prothoracicotropic hormone PTTH which regulates the
  • insect molting hormone 20 - hydroxyecdysone, which is secreted from the prothoracic glands Insect molting hormones ecdysone and its homologues are generally
  • Accessory glands or modified structures are present in some taxa: the Dytiscidae and Hygrobiidae also possess paired prothoracic glands secreting steroids
  • surfaces Last instar larva: 5. Head, frontal 6. Head, lateral, with prothoracic gland adenosma indicated 7. Crochets, with subapical tooth indicated
  • in all papilionid larvae, in all stages. The organ is situated in the prothoracic segment and can be everted when the larva feels threatened. The everted
  • bright red, with black markings. These bugs have two dorsolateral prothoracic glands capable of secreting substances repugnant to predators. These polyphagous
  • rubrum, and Hamamelis virginiana. They have a yellow head, prothoracic plate and dorsal glands The body is covered in whitish hairs and the verrucae wart - like