Review of research on the olfactory genes of rice planthoppers
Author of the article:YANG Gui-Qin WANG Qin ZHANG Qiu-Liang LIU Kun RANG Hui-Nu MA Yun-Feng DONG Shuang-Lin HE Pen
Author's Workplace:State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agriculture Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, China; Chemical Engineering Institute, Guizhou University, Guiyang 550025, China; College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
Key Words:rice planthoppers; olfaction; odorant binding proteins; chemosensory proteins; odorant receptors; ionotropic receptors; sensory neuron membrane proteins; odorant-degrading enzymes
Abstract:
Rice planthoppers,
the three dominant species of which are the white-backed planthopper, brown
planthopper and small brown planthopper, are major pests of rice crops in our
country. These species cause massive crop losses by sucking assimilates from
phloem and transmitting multiple rice viruses. Because rice planthoppers have
developed high resistance to common chemical pesticides, developing
alternative, green, pest management methods is essential to controlling these
pests. “Reverse chemical ecology”, which aims to find chemicals that can be
used as lures to capture pest insects in the field, is one of the most
desirable, alternative, green pest-control solutions. Development of such lures
first requires functional research on the crucial olfactory system genes of
rice planthoppers to understand their olfactory mechanism. Previous studies
have demonstrated that rice planthoppers have an elaborate olfactory system
that allows them to locate rice plants by tracking rice plant volatiles. This
review comprehensively summarizes recent progress in research on the olfactory
mechanism of rice planthoppers, and thereby provides a foundation for the
development of green pest management techniques to control these pests.