Research Progress of the Hormone Regulation of Insect Diapause

Insects growth and development are controlled by hormone. Diapause is a special development state. In this state, the significant characteristics are metabolism reducing and arrest of development. In the process of diapause development, a variety of hormone tends to create a network by intercoordination. Diapause plays an important regulatory role in diapause development. Insect neuroendocrine hormone is synthesized by neuroendocrine system and acts as upstream factor to affect insect diapause by regulating the synthesis and release of the downstream hormone. The regulation function of diapause hormonepheromone biosynthesis activating neuropeptide and prothoracicotropic hormone in the different type of diapause, insects has been widely studied. Located at the downstream in the network of neuropeptide hormone, the hormones ecdysteroids and juvenile hormone also play important regulatory roles but less studied so far. In addition, the research of hormone receptors will provide an important basis to explain the interaction between hormones; and by adjusting the hormone levels in diapause insect which will provide a new method in the biological control of harmful insects.