Frontiers in Immunology (Dec 2023)

Simulating immunosuppressive mechanism of Microplitis bicoloratus bracovirus coordinately fights Spodoptera frugiperda

  • Xing-Cheng Li,
  • Xing-Cheng Li,
  • Xing-Cheng Li,
  • Yin-Chen Ma,
  • Yin-Chen Ma,
  • Yin-Chen Ma,
  • Jin Long,
  • Jin Long,
  • Jin Long,
  • Xiang Yan,
  • Xiang Yan,
  • Xiang Yan,
  • Nan-Nan Peng,
  • Nan-Nan Peng,
  • Nan-Nan Peng,
  • Cheng-Hui Cai,
  • Cheng-Hui Cai,
  • Cheng-Hui Cai,
  • Wen-Feng Zhong,
  • Wen-Feng Zhong,
  • Wen-Feng Zhong,
  • Yong-Biao Huang,
  • Yong-Biao Huang,
  • Yong-Biao Huang,
  • Xin Qiao,
  • Xin Qiao,
  • Xin Qiao,
  • Li-Xiang Zhou,
  • Li-Xiang Zhou,
  • Li-Xiang Zhou,
  • Qiu-Chen Cai,
  • Qiu-Chen Cai,
  • Qiu-Chen Cai,
  • Chang-Xu Cheng,
  • Chang-Xu Cheng,
  • Chang-Xu Cheng,
  • Gui-Fang Zhou,
  • Gui-Fang Zhou,
  • Gui-Fang Zhou,
  • Yun-Feng Han,
  • Yun-Feng Han,
  • Yun-Feng Han,
  • Hong-Yu Liu,
  • Hong-Yu Liu,
  • Hong-Yu Liu,
  • Qi Zhang,
  • Qi Zhang,
  • Qi Zhang,
  • Hong-Mei Tang,
  • Hong-Mei Tang,
  • Hong-Mei Tang,
  • Jiang-Hui Meng,
  • Jiang-Hui Meng,
  • Jiang-Hui Meng,
  • Kai-Jun Luo,
  • Kai-Jun Luo,
  • Kai-Jun Luo

DOI
https://doi.org/10.3389/fimmu.2023.1289477
Journal volume & issue
Vol. 14

Abstract

Read online

Parasitoid wasps control pests via a precise attack leading to the death of the pest. However, parasitoid larvae exhibit self-protection strategies against bracovirus-induced reactive oxygen species impairment. This has a detrimental effect on pest control. Here, we report a strategy for simulating Microplitis bicoloratus bracovirus using Mix-T dsRNA targeting 14 genes associated with transcription, translation, cell–cell communication, and humoral signaling pathways in the host, and from wasp extracellular superoxide dismutases. We implemented either one-time feeding to the younger instar larvae or spraying once on the corn leaves, to effectively control the invading pest Spodoptera frugiperda. This highlights the conserved principle of “biological pest control,” as elucidated by the triple interaction of parasitoid-bracovirus-host in a cooperation strategy of bracovirus against its pest host.

Keywords