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Chinese Journal of Biological Control ›› 2022, Vol. 38 ›› Issue (4): 1020-1029.DOI: 10.16409/j.cnki.2095-039x.2021.09.023

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Summary of Research on Insect Chitinase and Its Application

LI Chunchun, GOU Yuping, ZHANG Kexin, ZHANG Qiangyan, LIU Changzhong   

  1. College of Plant Protection, Gansu Agricultural University/Engineering Laboratory for Biological Control of Crop Diseases and Insect Pests of Gansu Province, Lanzhou 730070, China
  • Received:2021-07-12 Published:2022-08-11

Abstract: Chitin,a nitrogen-containing polysaccharide biological polymer in nature,is the main structural component of insect epidermis,midgut peritrophic membrane and tracheal system,protecting insects from chemical erosion,physical damage,and pathogen invasion.Recently,more and more attention is paid to insect chitinase for its role in pest control,for it could degrade chitin in insect body wall and peritrophic membrane.By regulating chitinase,the growth and development of insects will be affected directly and even be controlled effectively.This paper summarized the structure,gene expression characteristics,physiological functions,and influence factors of insect chitinase,as well as its application and shortcomings in pest control,in order to provide a scientific basis for the further development and application of insect chitinase in the field of plant protection.

Key words: chitinase, physiological function, pest control, application

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