Molting process

Ecdysone. A hormone that stimulates the molting process in insects. 

Males of the collembolan, Sinella curviseta, deposit spermatophores in response to the emission of a putative, volatile sex pheromone produced by females (Waldorf, 1974). The emission of pheromone has been speculated to be related to the molting process (Waldorf, 1974), which suggests that sex pheromone in these species also may well be produced by epidermal cells associated with the integument. 

To date, interest in the ecdysteroids has focused primarily on their role in insect molting and metamorphosis and it is perhaps somewhat unfortunate that bioassays for ecdysteroid activity have been restricted almost exclusively to evaluating their effect on the molting process. It now appears probable that molting is just one of several important regulatory functions (e.g., embryogenesis, reproduction) performed by the ecdysteroids and that we are only just beginning to scratch the surface of an insect steroid system that is equally as complex as that in vertebrate species. 

The growth of insects can be controlled by the disruption of the molting process by inhibiting chitin biosynthesis [23, 24]. Since the mid-1970s several fluorinated... 

In insects and arachnids, there are two main molting processes of the sensilla one which retains a dendritic connection between the old and the new sensillum, thus retaining the chemosensory function, and one where there is no such connection and the chemosensory function is presumably temporarily lost during the molt. The type without loss of chemosensory function is the more predominant one (Guse 1983). 

The mode of action (MoA) of 45 appears to be an inhibition of the molting process during mite development, similar to that of BPUs [107]. 

Ligand dependent gene activation/suppression. Regulation of proteins critical to the molting process. 

Figure 2. Critical events in the normal insect molting process relative to changes in 20E concentration.

---