Abstract
Insect diseases caused by various pathogens are usually accompanied by marked changes in the duration of development, disturbances in metamorphosis, and decrease in fecundity, which indirectly indicate hormonal disturbances taking place during pathogenesis. Studies of the effect of various types of infections on different components of the hormonal system of insects are scanty. It was shown that viral infections caused by baculoviruses and entomopoxviruses are accompanied by hormonal imbalance [1‐3]. The disturbance of balance between the juvenile hormone (JH) and 20hydroxyecdysone (20E) manifests itself as an increased duration of the larval stage due to blockade of larvalpupal molt [3]. Parasitic hymenopterans cause similar changes in host insects. It was shown that developmental delay of host larva is caused by a decrease in the ecdysteroid titers and an increase in the JH (usually due to a decrease in the activity of specific JH esterase) and dopamine (DA) titers [4‐7]. The results of a large number of studies of the consequences of microsporidial infections of insects are indicative of hormonal disturbances that are apparently associated with an increased JH titer [8, 9]. On the basis of results of analysis of available published data and our own experimental data, we proposed a hypothesis of parasitic stress, according to which both microsporidia and other parasites and pathogens of insects lead
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
