Journal of Integrative Agriculture ›› 2018, Vol. 17 ›› Issue (06): 1409-1420.DOI: 10.1016/S2095-3119(17)61844-6

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  • 收稿日期:2017-08-14 出版日期:2018-06-01 发布日期:2018-06-05

Ultrastructure of the sensilla on antennae and mouthparts of larval and adult Plutella xylostella (Lepidoptera: Plutellidae)

LI Yi-ping, DU Xiao, LIU Fang-fang, LI Yin, LIU Tong-xian   

  1. State Key Laboratory of Crop Stress Biology for Arid Areas/Key Laboratory of Applied Entomology, College of Plant Protection, Northwest A&F University, Yangling 712100, P.R.China
  • Received:2017-08-14 Online:2018-06-01 Published:2018-06-05
  • Contact: Correspondence LIU Tong-xian, Mobile: +86-13709141817, E-mail: txliu@nwsuaf.edu.cn
  • About author:LI Yi-ping, Mobile: +86-13759967722, E-mail: liyiping@nwsuaf.edu.cn;
  • Supported by:
    This research was supported by the China Postdoctoral Science Foundation (2013M542388), the Postdoctoral Scientific Research Project in Shaanxi Province, China, the Fundamental Research Funds for the Central Universities of China (2014YB087) and the Agricultural Science and Technology Innovation in Shaanxi Province, China (2016NY-058).

Abstract:

Plutella xylostella (L.) (Plutellidae) is an important agricultural pest throughout the world.  In this study, the morphology of antennal and mouthpart sensilla in the larvae and adults of P. xylostella (L.) was observed by using a scanning electron microscope.  The larval antennae possess six sensilla basiconica, two sensilla chaetica and one sensillum styloconicum.  Larval mouthparts possess six types of sensilla: sensilla chaetica, sensilla digitiformia, sensilla epipharyngeal, sensilla basiconica, sensilla styloconica and sensilla placodea.  In the adult, seven types of sensilla are found on the antennae in males and six types of sensilla (sensilla basiconica absent) occur in females.  Sexual dimorphism is also found in the number and size of these sensilla on the antennae of adults.  We describe for the first time the five types of sensilla on the mouthparts of the adult of P. xylostella.  This study provides useful information for further research into the function of these sensilla, and better understanding the behavioral mechanisms involved in pest control.

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